Wastewater Treatment

Download the Hydrovex® Product Line Brochure. ( 924 kb)

Hydrovex® Fluid Gate ValveView the Brochure ( 308 kb)

The Fluid Gate Control Valve is well adapted for medium and large flow in CSO's or storm drains, surface pond reservoirs and retention tanks. Its compact design reduces required installation space and facilitates handling.

Hydrovex® Fluid Hook Valve
View the Brochure ( 213 kb)

The Fluid Hook Valve is particularly adapted for large or very large flow discharges with small to middle range upstream water heads. The adjustable Hydrovex Fluid Hook Flow Control Gate Valve can be manufactured over a wide range of widths.

Hydrovex® VHV/SVHV Vortex Flow Regulator
View the Brochure ( 1 mb)

A simple means of controlling excessive water runoff is by controlling excessive flows at their origin (manholes). John Meunier Inc. manufactures the HYDROVEX® VHV / SVHV line of vortex flow regulators to control stormwater flows in sewer networks, as well as manholes.

Hydrovex® Pond Vortex Flow Regulator
View the Brochure ( 333 kb)

The HYDROVEX® Pond Vertical Vortex Flow Regulators are designed for installation on small retaining tanks or water ponds. They operate without moving parts or external energy. The regulation of flow happens only under the effect of the flow (Fluidic). These units can create important restrictions while keeping a large open section for the flow.

Hydrovex® IHV Euro Type Vortex Flow Regulator
View the Brochure ( 588 kb)

The HYDROVEX® IHV Euro-type vortex flow regulator is an automatic water flow control unit. The regulation effect is simply caused by the non-destructive effects of flow. The active force of the flow resides in the differential pressure head between the inlet and outlet of the vortex flow regulator.

Hydrovex® IHV/HHV Flow Regulator
View the Brochure ( 393 kb)

The HYDROVEX® IHV / HHV Flow Regulator is a vortex throttle designed to limit flows from storm overflows, retention basins, combined and sanitary sewers.

Hydrovex® Turbo Flow Regulator
View the Brochure ( 341 kb)

The HYDROVEX® Turbo Flow Regulator is a turbine driven vortex flow regulator. It is a development of the well-known and proven vortex flow regulator technology. It retains all the precision and reliability that made the vortex unit widely popular. It is particularly well suited for EQ tanks and storm tank outlets with low to average output flow values.

Hydrovex® Fluid Moon Adjustable Gate Regulator
View the Brochure ( 558 kb)

The Hydrovex® FluidMoon Self-Adjusting Knife-Gate Regulator is a flow regulator applicable to Stormwater, Combined or Sanitary Water up to an upstream head of 33 feet (10 m) with free flow conditions downstream. The unit is particularly adapted to retention tanks, stormwater basins and any kind of wastewater treatment plants.

Hydrovex® Fluid Casca Float Gate Valve
View the Brochure ( 585 kb)

The function of the Hydrovex® FluidCasca Cascading Float Gate Valve is detailed for two precise cases: drainage of storage with high overflow weir and drainage of storage with low overflow weir. It can be also defined as a volumetric flow regulator. In dry weather flow, the float hangs freely in the air and the valve is completely open.

Hydrovex® HHV-E Regulator
View the Brochure ( 717 kb)

The hydro electronic HYDROVEX® HHV driven regulator, type E is specially designed for use in wastewater systems. It is adapted for use in small and medium size flows from 10 l/s to 200 l/s (0.35 cfs to 7.06 cfs). The combination between vortex flow regulators, pressure sensor, motorized valve and electronic controls offer new possibilities to the user.

Hydrovex® Fluid Mid Flow Metering With Siphon (Type G)
View the Brochure ( 330 kb)

The HYDROVEX® FluidMID flow monitoring and regulating station with siphon (Type G) is made especially for wastewater applications. It operates with a traditional flow monitoring system and is designed with a siphon shaped pipe. It is particularly appropriate for precise and continuous flow monitoring, recording and regulating flows in sewer networks and at Wastewater Treatment Facilities. The FluidMIDg unit can be applied only to measure flows or to fully regulate the flow with a piloted knife gate valve.

Hydrovex® Fluid Mid Flow Metering With Siphon (Type U)
View the Brochure ( 385 kb)

The HYDROVEX® FluidMID flow monitoring and regulating station without siphon (Type U) is made especially for wastewater application. It operates with a traditional flow monitoring and is designed to operate even with a partially filled magnetic meter. This FluidMIDu is particularly appropriate for precise and continuous flow monitoring, recording and regulating flows in sewer networks and at Wastewater Treatment Facilities. The FluidMIDu unit can be applied only to measure flows or to fully regulate the flow with a piloted knife gate valve.

Hydrovex® Tipper Flow Measuring
View the Brochure ( 547 kb)

The HYDROVEX® Tipper Flow Measuring Device is designed to collect small flows. The monitored flow can even fall to zero for a long period. However, over a certain period, an average flow is measured. It is a mechanical device requiring no external energy.

Hydrovex® CCV
View the Brochure ( 1779 kb)

The HYDROVEX® CCV Check Valve is designed for use in water and sewage. It has no reinforcement and is especially applicable in open channel flows, when a small pressure drop is desired and the back pressure is moderate, e.g. in sewers, all types of stormwater and overflow tanks, stormwater overflow and in sewage treatment plants.

Hydrovex® LCV
View the Brochure ( 374 kb)

When high river levels occur, or if tidal conditions exist, the weir can be flooded by water coming from the discharge stream, causing a massive intake of parasitic water in the sewer system. This extra water can affect the correct operation of the water and wastewater treatment plant. Our experience shows that close to one point out of five suffers from this problem.
To avoid it, John Meunier has developed the HYDROVEX® LCV Check Valve that prevents the backwater flows from the discharge point to the storm basins or the sewer networks. Also, to limit floatables discharge, the unit can be supplied with an underflow baffle installed upstream.

Hydrovex® TTT
View the Brochure ( 228 kb)

Flow regulators, for small storm drains, must be able to operate under low flow conditions. Orifice plates, big enough to prevent blockage, usually do not offer an appropriate flow control level. The technical solution of regulating stormflows with electrically activated components involves large amounts of time and money and is not particularly adaptable for small stormwater catchments. This is why the HYDROVEX® TTT Thistle Tube Throttle is designed to master such low flows. This equipment, without any moving parts, works solely under the effects of the flow.

CSO Storage & Treatment

Hydrovex® Fluid Sep
View the Brochure ( 378 kb)

The HYDROVEX® FluidSep Vortex Separator is a tool in the treatment of CSO and Stormwater. The treatment relies on the properties of the controlled vortex to eliminate settleable suspended solids, as well as floatables carried by the incoming water. It is currently in full operation in Germany, France and the United States of America.

Hydrovex® SFT
View the Brochure ( 323 kb)

Cleaning settled debris and sediments from retention and equalization basins can be costly and labor intensive; endeavor is therefore desirable. The HYDROVEX® SFT Sediment Flusher economically cleans retention tanks free of debris by generating a relatively large “flash flood” of water.

Hydrovex® Clari
View the Brochure ( 627 kb)

The HYDROVEX® Clari was developed especially to regulate the overflow of treatment tanks of the transit type for CSO, SSO and stormwater. Hydraulic optimization and evaluation of the new HYDROVEX® Clari was made with the HUBERT-ENGELS Laboratory at DRESDEN'S UNIVERSITY in Germany.

Overflow Control

Hydrovex® Fluid Wing
View the Brochure ( 455 kb)

Precision measurement of the overflow activity at Combined or Sanitary Sewer Overflow sites is paramount to maintaining a good record of each site overflow in the receiving waters. This recording requirement is imposed by National and most State regulations. It is particularly important to maintain good records according to the NPDES permits.
Usually, the recording of overflow activity is based on measuring the water level on top of the overflow weir. Once the level is measured, it is assimilated to a discharge head and computed into an actual overflow value. However, the problem comes from the fact that more than 50% of the combined sewer overflow events generate less than 1½” of head on the overflow weir, granting 0.2 MGD/foot of weir length or less of actual overflow. Conversely, any overflow weir will very rarely reach its peak design condition over an annual recording period.

In order to prevent floatables or oil and grease to escape from sewer systems, design often includes baffle arrangements right in front of the weir. This is a further hydraulic complication, as the baffle arrangement requires very quiet and non turbulent flow conditions in order to become efficient.

Technical literature grants information on various positions for the baffle arrangement, depending on distance and submergence from the weir. These positions are difficult to adapt in practice, as sometimes the clearance under the baffle is too shallow or the distance from the weir becomes too large. This problem cannot be simply solved unless expensive mobile baffle arrangements are considered.
ADVANTAGES.

Hydrovex® Flap
View the Brochure ( 377 kb)

With the HYDROVEX® Flap Spring-loaded Weir, we present a new type of level control device that is more powerful than a normal static weir. The spring-loaded weir can limit the required water level increase over the weir in order to generate a large overflow. Consequently, more retention volume in the sewer line is gained, while maintaining a safe level of water upstream. Contrary to the standard sharp crested weir, water can be overflowed without sucking out the sediment bed load from the sewer line.

Hydrovex® ARS
View the Brochure ( 565 kb)

The Hydrovex® ARS Air Regulated Siphon offers an excellent alternative to conventional overflow weirs. Storm overflow outfalls, using air-regulated siphons, are much smaller in size than those using conventional weirs, thereby providing a considerable saving in costs.

Overflow Control

Hydrovex® Fluid Screen
View the Brochure ( 574 kb)

The discharge of aesthetic pollutants is the most visible sign of a CSO event to the general public. Per se, EPA identified the control of such pollutants, also referred to as floatables, as one of the Nine Minimum Controls for CSO. Typically, discharged aesthetic pollutants and floatables are composed of toilet paper, plastic parts, sewer fat chunks, stools, etc.
One of the solutions to this type of problem is the installation of screens either at the overflow point or close to the discharge. However, the use of mechanical bar screens is often too expensive or too complicated from an operation stand point. Furthermore, the important investment required by the installation and maintenance of large mechanical units is precluded by the fact that some sites are operated very infrequently.
Finally, the use of static welded bar racks usually provides little help as the screen surface gets clogged very fast under the massive input created by the overflow event, unless the bar spacing is kept very large. Unfortunately, large bar openings reduce the removal efficiency rapidly.
The HYDROVEX® FluidScreen is a compromise solution to all these contradictory conditions.

Hydrovex® SOS
View the Brochure ( 447 kb)

The StormGuard® is an upward flow horizontal fine filter band screen for single or double-sided weir overflows. The perforated elements have 1/4 in. (6mm) diameter holes as standard. The StormGuard® is manufactured to suit any weir length up to 26 ft. (8.0 m) and can readily handle flows up to 115 mgd (5,000 l/s). Screenings are retained in the foul flow, while any storm flows pass through the 1/4 in. (6mm) perforations, guaranteeing compliance with current environmental regulations. The StormGuard® fits directly to the weir to eliminate the possibility of unscreened spillage. It is robust, simple and is manufactured throughout in stainless steel. Standard unit construction is fully assembled and ready to install. The unit is also available in bolted construction to simplify installation where access is restricted.

Hydrovex® Low Profile Overflow Screen
View the Brochure ( 313 kb)

The Low Profile Overflow Screen is specifically designed to remove floatables from CSO and sanitary SSO sewer overflows requiring maximum hydraulic capacity.

Hydrovex® RDS
View the Brochure ( 520 kb)

The HYDROVEX® RDS Rotary Drum Sieve we have developed is especially designed to retain floatables in sewer overflows and sewer treatment facilities. We made a careful study of old effluent screening technology, which was common at the start of the century, before the development of biological wastewater treatment. We also tested sieves and cleaning systems of all kinds with real effluent.

Hydrovex® RDS
View the Brochure ( 447 kb)

The StormGuard® is an upward flow horizontal fine filter band screen for single or double-sided weir overflows. The perforated elements have 1/4 in. (6mm) diameter holes as standard. The StormGuard® is manufactured to suit any weir length up to 26 ft. (8.0 m) and can readily handle flows up to 115 mgd (5,000 l/s). Screenings are retained in the foul flow, while any storm flows pass through the 1/4 in. (6mm) perforations, guaranteeing compliance with current environmental regulations. The StormGuard® fits directly to the weir to eliminate the possibility of unscreened spillage. It is robust, simple and is manufactured throughout in stainless steel. Standard unit construction is fully assembled and ready to install. The unit is also available in bolted construction to simplify installation where access is restricted.

WSG & Solutions CSO Technik Biogest Equipment Line

Flow Limiters
View the Brochure ( 2.67 mb)

• No Power Supply Required
• Automatic de-blocking
• Constant pass forward flow, with accuracy of +/- 5%, irrespective of upstream water head
• Minimal Maintenance

Flushing Gates
View the Brochure ( 2.93 mb)

Flushing Gates are ideal for open tanks where confined space entry is not required. The gates are closed to hold back a volume of water which is then used to flush the tank after it has emptied. Gates are closed using double or single acting hydraulic cylinders.

• Long hooks assist closure of gates when debris is present
• Double acting cylinder allows greater flush volume to be retained for a more effective flush
• Polyethylene can be used for the opening gates section reducing the manufacturing cost without damaging integral strength

Pump Action Screens
View the Brochure ( 4.68 mb)

• 58% Solids Retention Value (SRV) Wigan
• 6mm in two directions
• Powered cleaning system
• Simple, robust, low cost

Tipping Buckets
View the Brochure ( 172 kb)

• Low cost flushing system for smaller basins
• Simple robust design
• No power required
• Manual or auto fill
• Stainless steel construction
• Sealed for life bearings
• Complete design service

Vac-Flush Systems
View the Brochure ( 4.66 mb)

• All component parts are above the tank and can be maintained without entry into confined space
• Ability to completely flush tank even if only partially full
• Low running maintenance costs
• Utilizes storm water as flushing media to avoid using potable water
• System does not impinge on storage volume, keeping tank size to a minimum
• Flushing system can be used as central support for the tank roof in circular tank installations

Cont-Flo® Bar Screen View the Brochure. ( 525 kb) This back cleaned bar screen removes solids from wastewater or intake streams to protect equipment or processes that follow the screen by cleaning the bar rack from the downstream side. It can be used for medium and heavy-duty service and applications and for high lift applications. Escalator® Fine Screen View the Brochure. ( 348 kb) The Escalator® gives continuous fine screening for channel type applications with very few moving parts below the water level. It is able to remove larger screenings and increase effective screening area. Rex® Series 1000 Bar Screen View the Brochure ( 1,134 kb) The Rex® Series 1000 Bar Screen is a self-contained chain and rake type screen. The screen can be designed to pivot out of the channel. The debris is captured by the bar rack and removed by multiple rakes from the upstream side of the screen. The screen can be supplied with a screw compactor or washing compactor. The screen is constructed of stainless steel. Rex® Heavy Duty FR Screen View the Brochure ( 1,134 kb) Rex® Heavy Duty FR screens may be used in channels from 1 to 10 ft wide, 45 ft deep. Like the Series 1000 and Standard Duty FR screens, the rakes clean bars from the front. Heavier chains are provided for greater load carrying capacity. Non-metallic chain and sprockets are also available on some models. Rex® Standard Duty FR Screen View the Brochure ( 1,134 kb) Rex® Standard Duty FR screens are suitable for the majority of municipal and industrial applications. Sized for channels from 1 to 4 ft wide with a maximum depth of 18 ft., these screens travel at 10 fpm and can be timed for 24-hour operation with automatic start-stop intervals. They may be supplied with debris compactors. Non-metallic chain and sprockets are also available on some models. MI-Series Shaftless Spiral Fine Screens View the Brochure   ( 664 kb) The shaftless spiral fine screen with its small foot print and low operating costs provides high quality at low cost without any compromise on performance and reliability. The screen is typically installed directly into a channel and is supplied with pivoting capability. The unit consists of a solids capture screen, a shaftless cleaning/conveying spiral and a drive motor. The solids progressively collect onto the screen mesh and cause it to gradually blind. The spiral is activated as the upstream water level rises. Replaceable cleaning brushes are attached to the periphery of the spiral, in the screen area, to clean the openings. The spiral screw then conveys the solids up to the discharge point. * Picture featured to the right is of a MID/T: Screen in Stainless Steel Tank

Mectan® Grit Collector View the Brochure. ( 212 kb) The new MECTAN 360 is a complete redevelopment of the classic John Meunier Inc.’s MECTAN Vortex Grit Chamber. The unit capitalizes on the existing, Grit Removal enhancing conical design of the original MECTAN design to evolve into a dynamic, highly performing new configuration. The added features are the following: • Inlet channel entering the Vortex Grit Chamber in the low portion of the tank. • Complete separation of the Vortex Grit Removal Zone from the Flow Outlet Zone with an added steel cone in the tank. • Optimization of the Paddle Mixer Design to enhance the Vortex Flow Patterns in the Vortex Grit Removal Zone. • Re-design of the tank’s outlet channel than can now be in-line with the inlet channel direction, but also located at any location along the periphery of the MECTAN 360 tank. SAM® GFW Series Grit Washer with Shaftless Screw view the Brochure. ( 544 kb) A dewatering screw conveyor/classifier that uses an inclined shafted screw to dewater and convey grit that comes from a grit chamber, generally complimentary equipment to a grit chamber.

View Brochure  ( 460 kb) The MND series Screw Conveyors provides a costeffective solution for bulk solids handling. Solids are conveyed by a heavy-duty shaftless spiral screw that rotates on a wear resistant liner without any intermediate bearing. This method provides high throughput without entanglement or clogging with significantly reduced and simplified maintenance requirements. The spiral is highly resistant to wear to provide durability. Conveyors are available with single or dual screws.

Rotopac ® MD Series Shaftless Screw Compactors and Washers View the Brochure ( 412 kb) MD screw compactors offer a simple, cost-effective solution for the conveying, dewatering, washing and compaction of screenings as well as other process or waste materials. The MD compactor consists of a shaftless spiral screw inside a trough fitted with bolted removable covers. The solids enter an inlet feed port, then conveyed through the dewatering, washing and compaction sections where they are discharged. Solids volume reduction of 40% or greater can be obtained. Drainage water is usually returned to the main stream for treatment. The addition of spray wash in the transport zone will provide higher organic removal. A continuous bagging system can be fitted to the compactor discharge, to provide a totally enclosed system that will enhance odor control. The bag also eliminates possible physical contact with the sealed solids. The MD series compactors are manufactured with bolted sections to allow superior inspection and maintenance access, which in turn will increase the equipment performance and life.

M/2 Unit Top Series Combined Systems Compact Screening & Grit Removal View the Brochure ( 532 kb) M/2 Range compact combined systems offer screenings removal, washing and compaction, grit removal, washing and dewatering from tanker imported sludge, or for waste water treatment works with limited installation area.   Top-Series Combined Systems Screenings removal, Grit removal, Fats, Oil & Grease removal View the Brochure  ( 600 kb) The TOP-2 series integrate screenings removal and grit  separation. The TOP-3 series incorporates the same TOP-2 treatment segments plus a further treatment section for fat, oil & grease (FOG) removal, all within a single package unit. All TOP units are designed for installation on a concrete slab.

Rectangular Clarifiers

View the Brochure ( 1,006 kb)

USFilter's Envirex Products line of Rex® & Link-Belt® rectangular chain & scraper collectors fit any plant requirements for basins in sizes from 6 ft. by 15 ft. to 35 ft wide by 300 ft. long. In operation. Rex fiberglass flights mounted on two parallel strands of chain scrape the settled solids along the tank floor to sludge hoppers. On the return run, riding on UHMW wear strips, the flights can skim the surface and concentrate the floating material at a scum removal device. The non-metallic Rex® chain travels over molded polymeric sprockets. When skimming is not required, a three-shaft design is available. Two shaft designs are also available. All components are light in weight and are designed to make maintenance tasks as easy and convenient as possible. They offer proven reliability, easy installation and an extended service life. Rectangular collectors are available in two models, based upon chain selection: HS730 high strength chain and NCS720S non-metallic molded chain. Also available are stainless steel and cast iron chains.

Circular Clarifiers

View the Brochure ( 1,986 kb)

The circular settling basin is essential to almost all water and wastewater treatment schemes and includes primary and secondary clarifiers, backwash clarifiers, floc clarifiers, solids contact reactors, circular grit basins, gravity thickeners and flotation separators and thickeners. USFilter's Envirex Products line of circular scraper collectors fit any plant requirement for basins ranging in size from 4 m (15 ft.) to 67 m (220 ft.)

View the Brochure ( 1,434 kb)

Improve clarified effluent water quality, improve solids handling, and lower your total cost of operation in the smallest footprint available. The Leopold Clari-DAF system is a proven, highly effective method of removing turbidity, insoluble metals, color, TOC, algae, and associated taste and odor. Its performance is superior to gravity sedimentation in providing consistent quality effluent, producing consistently high sludge solids, and operating at high loading rates (gpm/sf, m/hr)–results that can lower your total cost of operation.

Diffused Air

View the brochure  984kb The JMS Low-Profile Cascade Aerator (LPCA ™) is a free flowing, efficient, package, channel-type aeration device that can be installed in new or existing treatment facilities at an economical cost. The LPCA is an open-channel type aerator for use in a liquid containing basin, pipeline, or channel. Specifically, the purpose o this unit is for raising the dissolves oxygen (DO) concentration level of the treated basin effluent. The high-tech, precision design of the patented LPCA ™ system accomplishes what no other post-aeration system has ever been able to do. Its day-to-day operation is so incredibly simple that it requires no external power of any kind and virtually no maintenance whatsoever. The unit is compact, self contained, and designed for minimal installation expense.   FINE BUBBLE AERATION DualAir™ Fine Bubble Diffuser - View the Brochure ( 277 kb) The DualAir fine bubble diffuser is an evolutionary fine bubble membrane or ceramic disc (0.2m or 9in.) diffuser with a dual saddle holder that allows twice as many diffusers per foot of pipe, reducing both capital and installation costs. The DualAir diffuser is designed for municipal and industrial use where high oxygen transfer efficiency and low maintenance is specified in a full floor coverage application. The DualAir diffuser can mount to PVC or stainless steel pipe with the RivAir™ attachment. Typical air flow rates are 14.2L/s to 85.0L/s (0.5 to 3.0SCFM) per diffuser element. FlexDisc™ Fine Bubble Membrane Diffuser - View the Brochure ( 354 kb) A fine bubble membrane disc (9”) diffuser, the FlexDisc is an ideal low cost, energy efficient retrofit of existing coarse bubble diffusers, which mount on the crown of the pipe. The FlexDisc uses the same proven EPDM membrane as the DualAir® diffuser. The membrane holder incorporates an integral flow control orifice for balanced air distribution throughout the system. FlexDome™ Fine Bubble Diffuser - View the Brochure ( 418 kb) The FlexDome fine bubble membrane diffuser is a cost effective replacement for existing ceramic dome diffusers. The 0.2m (9in.) EPDM membrane and PVC holder mounts directly on the ceramic dome holder with a brass attachment bolt that also serves as the flow control orifice. FlexDome diffusers allow increased system capacity. The design air flow range of 14.2L/s to 85.0L/s (0.5 to 3.0SCFM) is about 50% more than the ceramic dome it replaces with a corresponding increase in oxygen transfer efficiency. FlexDome diffusers have replaced more ceramic dome diffusers than any other diffuser in the market. FlexLine™ Tubular Membrane Diffuser - View the Brochure ( 415 kb) The FlexLine fine bubble membrane diffuser allows for economical, energy conserving retrofit of existing wide band coarse bubble diffusers. The FlexLine frame is open on both ends to allow water to occupy the area normally filled with air on other tube diffusers. This open frame feature significantly reduces the diffuser buoyancy and resulting stress on diffuser connection and piping system. The recommend airflow range is 2 to 7 SCFM for the 24” long model. The FlexLine diffuser is also available in a 39” length with an airflow rate range of 3 to 12 SCFM. Diamond™ Fine Bubble Diffuser Membrane - View the Brochure ( 72 kb) The Envirex Diamond edition membrane is breakthrough in fine bubble membrane technology. The diffuser  was specifically developed to address the short comings of typical membrane diffusers. Customer formulated EPDM Material, Tensile strength up to 50% greater than competitors, lower soluble oil  content for longer life, New Diamond Aperture Configuration equals lower life cycle costs. The Diamond layout results in higher oxygen transfer efficiency, wider operating airflow range, reduced head loss, and longer service life. Designed specifically for use in DualAir fine bubble systems, the DualAir system has the most robust piping system and  lowest installation cost of any 9" membrane diffuser available in the industry.    COARSE BUBBLE AERATION Snap Cap Coarse Bubble Diffuser - View the Brochure ( 96 kb) The Snap Cap coarse bubble diffuser started a revolution in coarse bubble diffusers over 15 years ago. Its unique membrane design which includes the discharge holes on the top has proven itself in years of service in both activated sludge aeration and mixing applications. The membrane design allows for a positive check against backflow during air flow interruptions making it an ideal choice for aerobic digestion and sludge holding tank applications. The Snap Cap diffuser has an high impact plastic holder with 0.02m (0.75in.) NPT thread connection. The air flow capacity is 226.5L/s (8SCFM). WideBand™ Coarse Bubble Diffuser - View the Brochure ( 326 kb) WideBand™ Coarse Bubble Diffuser: The wide band diffuser is designed for oxygen transfer and mixing applications and is constructed entirely of 304 or 316 stainless steel. The wide band diffusers are available in 12” or 24” lengths with air capacities of 10 to 40 SCFM. VariAir™Coarse Bubble Diffuser The VariAir diffuser incorporates a threaded cap which allows the use of either four, eight or twelve air discharge orifices. This adjustability allows its use in different applications with widely varying air flow requirements. The VariAir diffuser also has an internal ball type check valve to prevent solids backflow. The VariAir diffuser is ideal for mixing applications such as grit chambers and aerated channels. The diffuser has a durable thermoplastic body with 0.02m (0.75in.) NPT threaded connection. Air flow capacities range from 85.0L/s to 424.8L/s (3 to 15SCFM). SED Coarse Bubble Diffuser The SED coarse bubble diffuser is an inverted lance type diffuser which allows for diffuser cleaning without removal from the basin. The diffuser is designed for mounting on the bottom of a vertical 0.03m (1in.) diameter pipe allowing the pipe and diffuser to be "rodded" from above. SED diffusers are constructed of industrial grade polypropylene for years of trouble free service. Recommended air flow range is from 141.6L/s to 566.3L/s (5 to 20SCFM)

Membranes

Floating Air

Location of future information...

Jet Air

View the Brochure ( 526 kb)

Jet Aeration Systems The VARI-CANT® jet aeration system intermixes air with a motive liquid and injects the stream into the wastewater. The aerator itself consists of two jet nozzles. The motive liquid - recirculated mixed liquor is discharged from an inner nozzle into an outer nozzle mixing nozzle, within which compressed atmospheric air is introduced, and sheared into tiny bubbles which are entrained in the motive liquid stream. As the stream is discharged into the surrounding mixed liquor, it forms a highly turbulent jet plume. The plume entrains the surrounding mixed liquor and brings it into contact with the tiny air bubbles, resultant in a extremely high oxygen transfer rate. Jet Mixing Systems The Jet Tech Products jet mixing nozzle is a single phase submerged mixing device which does not introduce any oxygen during its mixing action. There are no moving parts within the jet mixing nozzle and several nozzles are typically installed along a header system. A pump is utilized to move the motive liquid through the mixing nozzle, which is designed with an inner and outer nozzle plus two entrainment ports. The inner nozzle is a typical jet nozzle which recirculates the motive liquid from the basin. The high velocity jet stream flowing through the inner nozzle creates a low pressure region within the area of the outlet nozzle. Here the pumped motive liquid and the entrained liquid are mixed before leaving the outer nozzle.

Static Tube

View the Brochure ( 3,000 kb)

The efficiency of a logoon/basin wastewater treatment system is determined by both mixing and by oxygen trasfer. The Ventuse sub-surface static tube aerator is unparalleled in both of these functions.

The vertical tube of the Ventuse static tube aerator is 12 inches in diameter by 30 inches in length. Inside each vertical tube are static diffuser membranes which are specially designed to break-up the air bubbles being discharged from the manifold piping, and at the same time permit large solid particles to pass through the aerator.

The upward action of air bubbles through the tubes serves as an air-lift pump, circulating large volumes of liquid and creating large mixing zones of influence. This ability to pump water upwards from the bottom of the lagoon is unique to static tube aerators. Ventuse static tubes are an ideal aeration device where mixing may be the limiting design criteria. Many tubes can be placed throughout the lagoon or aeration tank to impart both uniform circulation and aeration, which would be impossible to obtain together using other aeration devices.

Addionally, the static tube aerator is constructed to last for long periods of time with no maintenance required. The entire system employs thermoplastic and stainless steel. These materials are corrosion-free, yield low head losses, and preclude foreign matter build-up. The diffuser membrane tines (fingers) are quite flexible and designed to allow passage of flotsam and other large solid matter.

The Ventuse sub-surface static tube aerator will provide maintenance-free, long term operation for municipal, commercial, and industrial applications.

Envirex Rotating Biological Contractor Product Introduction

View the Brochure ( 490 kb)

The RBC process consists of large diameter corrugated plastic media centered around a horizontal shaft, placed in a concrete or steel tank. The media is slowly rotated (mechanical or air drive). At any given time during the rotation, about 40% of the media surface area is in the wastewater. Organisms in the wastewater attach and multiply on the rotating media until they form a thin layer of biomass. This shaggy, fixed film growth presents a very large, very active population for the biological degradation of organic pollutants. The RBC process is one of the more efficient fixed film wastewater treatment technologies. As such, it is well suited for secondary and/or advanced wastewater treatment, in municipal or industrial applications.

Jet Tech Sequencing Batch Reactor Product Introduction

View the Brochure ( 2,000 kb) The OMNIFLO Sequencing Batch Reactor (SBR) is a fill-and-draw, non-steady state activated sludge process in which one or more reactor basins are filled with wastewater during a discrete period and operated in a batch treatment mode. The SBR accomplishes equalization, aeration, and clarification in a timed sequence in a single reactor basin. By varying the operating strategy aerobic, anaerobic, or anoxic conditions can be achieved to encourage the growth of desirable micro-organisms. The OMNIFLO is ideally suited when nitrification, denitrification, and biological phosphorous removal are necessary.

Envirex Vertical Loop Reactor (VLR®) Product Introduction

View the Brochure ( 1,000 kb)

The Vertical Loop Reactor (VLR®) is a series of reactors in rectangular tanks, with disc aerators primarily for mixing and coarse bubble diffusers for the supply of oxygen. The under-over flow pattern allows an oxidation ditch system to be installed in deeper tankage, reducing land area requirements significantly. The Vertical Loop Reactor (VLR®) removes BOD, TSS, nitrogen, and phosphorus using less power and space than other systems, using a series of rectangular reactors.

John Meunier BIOSTYR Product Introduction

View the Brochure ( 518 kb)

The Biostyr® process consists of upflow filtration through submerged and floating fine granular media called Biostyrene. Air is injected to the base of bed or the media itself. In latter case, filter can simultaneously nitrify and denitrify. Capable of eliminating all biodegradable pollutants: carbon pollution (COD and BOD), suspended solids (SS), ammonia (N-NH4) and nitrates (N-NO3). The Biostyr® is a simple process which carries out effective biological treatment of residual water at minimum operating cost.

ECOFluid Systems Inc. USBF™ Process Introduction

View the Brochure ( 383 kb)

The USBF process is a modification of conventional activated sludge process that incorporates an anoxic selector zone and an upflow sludge blanket clarifier. The USBF process may be designed for:

• carbonaceous (BOD) removal
• BOD removal and nitrification
• BOD removal, nitrification, and denitrification
• BOD removal, nitrification/denitrification and phosphorus removal

For carbonaceous removal, the anoxic zone serves as a "selector zone" that conditions the mixed liquor to improve settleability and to control filamentous organism growth.

For nitrification, denitrification and phosphorus removal designs, the anoxic zone provides the necessary conditions for dissimilarity nitrate reduction and phosphorus removal by "luxury uptake". In this process, ammonia nitrogen is oxidized to nitrite and then to nitrate by Nitrosomonas and Nitrobacter bacteria, respectively in the aeration zone. The nitrate is then recycled to the anoxic zone where the nitrate is reduced by dissimilarity nitrate reduction. In this reaction, the incoming BOD serves as the carbon source or electron donor for the reduction of nitrate to elemental nitrogen. The phosphorus removal mechanism in this process is the same as that employed in the Phostrip and modified Bardenpho processes. In the USBF process, fermentation of soluble BOD occurs in the anaerobic or anoxic zone. The fermentation products are selectively used or assimilated by a special group of microorganisms that are capable of storing phosphorus. During the aerobic stage of treatment, soluble phosphorus is taken up by the population of the phosphorus storing bacteria (Acinetabacter) that was developed in the anoxic zone. The assimilated phosphorus is then removed from the system as excess biomass or waste sludge. The amount and rate of phosphorus removal depends primarily on the BOD/P ratio of the influent wastewater.

The Actiflo® process is a compact, conventional-type water clarification system that utilizes microsand as a seed for floc formation. The microsand provides surface area that enhances flocculation and acts as a ballast or weight. The resulting sand ballasted floc, display unique settling characteristics, which allow for clarifier designs with high overflow rates and short retention times. These designs result in system footprints that are between 5 and 20 times smaller than conventional clarification systems of similar capacity.

Wastewater Applications
View the Brochure ( 494 kb)

In wastewater treatment, the Actiflo® process is appropriate for use in any application that would benefit from physical-chemical treatment including coagulation, flocculation and settling. It can be applied to primary and tertiary wastewater treatment where either better performance or cost reduction is desired. It is ideally suited for storm water treatment including CSOs, SSOs, and other overflows due to its high performance, small footprint and extremely short start-up time. The process consistently displays efficient removals of TSS, BOD, Total P, COD, metals, fecal coliforms, and other typical wastewater contaminants, which can be removed by physical-chemical processes.

Rectangular Clarifiers

View the Brochure ( 1,006 kb)

USFilter's Envirex Products line of Rex® & Link-Belt® rectangular chain & scraper collectors fit any plant requirements for basins in sizes from 6 ft. by 15 ft. to 35 ft wide by 300 ft. long. In operation. Rex fiberglass flights mounted on two parallel strands of chain scrape the settled solids along the tank floor to sludge hoppers. On the return run, riding on UHMW wear strips, the flights can skim the surface and concentrate the floating material at a scum removal device. The non-metallic Rex® chain travels over molded polymeric sprockets. When skimming is not required, a three-shaft design is available. Two shaft designs are also available. All components are light in weight and are designed to make maintenance tasks as easy and convenient as possible. They offer proven reliability, easy installation and an extended service life. Rectangular collectors are available in two models, based upon chain selection: HS730 high strength chain and NCS720S non-metallic molded chain. Also available are stainless steel and cast iron chains.

Circular Clarifiers

View the Brochure ( 1,986 kb)

The circular settling basin is essential to almost all water and wastewater treatment schemes and includes primary and secondary clarifiers, backwash clarifiers, floc clarifiers, solids contact reactors, circular grit basins, gravity thickeners and flotation separators and thickeners. USFilter's Envirex Products line of circular scraper collectors fit any plant requirement for basins ranging in size from 4 m (15 ft.) to 67 m (220 ft.)

Kruger Disc Filter Product Introduction

View the Brochure ( 1,000 kb) The Gravity flow Hydrotech Discfilter is designed for effluent polishing of wastewater and a variety of other filtration applications where space-saving and large filtration capacities are required. It features multiple discs with polyester or stainless steel filter cloth mounted on two sides. During normal operation, the discs remain static until the level in the inlet channel rises to a certain level. When this occurs, the back-wash cycle is automatically started and solids are backwashed into the collection trough as the disc is rotated. The counter-current flow-path and moving spray headers ensure thorough cleaning of the filter media with minimal water use. Typically, the backwash requires less than 3% of the flow to the filter. The back-wash spray headers fold out to facilitate maintenance of the spray nozzles, that can be removed and replaced without tools.

ZeeWeed Membranes for Municipal Wastewater Treatment

View the Brochure (1.12 mb)

Hundreds of municipalities have discovered that with ZeeWeed MBR, you don’t have to worry whether your
system will meet current or future discharge and reuse regulations. The physical barrier of the UF membrane
ensures a crystal clear effluent at all times, that exceeds the world’s most stringent regulations.

Packaged Plants for Water and Wastewater Treatment

View the Brochure ( 716 kb)

Incorporating a simple and expandable building-block design, ZENON packaged plants can be quickly set up
in virtually any location and feature scalable treatment capacity that can be increased as demand grows. These highly automated, plug-and-play UF systems outperform conventional treatment alternatives in all categories, offering superior treated water quality that meets or exceeds regulatory requirements, reduced operating costs, smaller plant footprints, and highly reliable performance—at a price that is comparable to conventional systems.

Wastewater Treatment for Property and Green Developments

View the Brochure (1.32 mb)

Reusing water can reduce operating costs by replacing the use of municipally-provided potable water for landscape irrigation, toilet and urinal flushing, and other building operations while also eliminating the wastewater discharge to the municipal sewer system. This utility, servicing, and connection fee savings, in addition to the incentives offered by state and local agencies for environmentally friendly developments, can translate into a short-term ROI.

Tertiary Ultrafiltration for Water Reuse and Discharge

View the Brochure (1.08 mb)

Global water resources are facing unprecedented pressures from growing populations, industries and agriculture. In an increasing number of regions around the world, wastewater recycling using membrane technology is providing a sustainable source of new water. Membrane technology can treat wastewater
to such a high standard that it can be safely utilized for numerous applications such as irrigation, industrial process water or groundwater recharge

Zimpro Hydor-Clear® Gravity Filtration Product Introduction

View the Brochure ( 338 kb)

The gravity flow, pulsed bed Hydro-Clear® Sand Filter is designed specifically for wastewater. It features a unique underdrain system and a shallow (10") bed of single-media, fine-grained sand. These features permit the filter surface to be "pulsed" periodically, prolonging filter runs and automatically keeping the system on-line despite changing solids loadings and characteristics, while generating up to 80% less backwash water than competing technologies.

Davco Travelling Bridge Filter Product Introduction

View the Brochure ( 709 kb)

The Gravisand™ traveling bridge filter is used for applications requiring suspended solids removal and/or turbidity reduction in process water or wastewater applications. The Gravisand is a low head, dual media, gravity filtration system, capable of fitting into very tight hydraulic profiles.

Please visit Chemical Feed

Wedeco Ultraviolet Product Introduction

View the Brochure ( 988 kb)

At the core of WEDECO systems are high-performance UV lamps. They have long life expectancy, are to a large extent independent of water temperatures and their particularly high performance makes them far superior to conventional emitters.

Electronic controllers containing smart chips are designed specifically for the lamps and increase effectiveness. These can supply energy to the lamps as a function of transmission and flow rates. They ensure that optimal levels of ultraviolet rays are emitted in the effective wavelength range(UV-C) and, at the same time, they ensure low energy consumption. Consequently, they have a much longer life expectancy than conventional lamps.

In addition, calibrated sensors monitor and document all factors necessary for disinfection. If required, additional functions, such as ultraviolet dose indicators, automatic cleaning and remote monitoring via telemetry and the internet, can be integrated.

PCI-WEDECO Ozone Product Introduction

View the Brochure ( 2,170 kb)

For individual unit ozone capacities beginning at 400 pounds per day (ca. 7500 grams/hour) and continuing to more than 6000 PPD (113 kg/hr), there is a standard PDO/ PDA model to meet your needs. In addition, custom generators can be manufactured to produce larger quantities of ozone if required. Whether the challenge involves drinking water treatment, chemical oxidation, bleaching or pollution control, PDO/PDA series generators can provide the solution.

PDO/PDA Ozone Generators: Unique design. Unique performance.
Two key features separate PDO/PDA generators from all others. These include PCI-WEDECO’s exclusive use of patented Effizon HPTM electrode/dielectric technology and proprietary high performance variable frequency power supply technology. These features combine to produce an ozone generator with unmatched reliability, production flexibility and efficiency, all in a compact package that minimizes space requirements and associated facility construction costs. PDO/PDA ozone generators are also unique in that they are the only large-scale ozone gener-ators available that are factory pre-assembled and fully performance tested prior to delivery. This provides our customers with the peace of mind that their ozone plant will start up on time and perform according to design, every time!

Float-Treat® Dissolved Air Flotation Thickener
View the Brochure ( 1,000 kb)

TheRex Float-Treat® dissolved air flotation (DAF) thickeners have compiled outstanding performance records for solids concentrating on water and wastewater sludges. With our tried and true recycle pressurization system, Float-Treat thickeners have produced 5% total solids and more on biological sludges alone. Process flexibility and minimal operator attention make Float-Treat DAF thickening a practical operation for any size treatment plant. With over 50 years of experience and hundreds of installations, USFilter has the knowledge to meet your solids thickening needs.

Folded Flow® Dissolved Air Flotation Separator
View the Brochure ( 493 kb)

The Folded Flow(R) dissolved air flotation (DAF) separator is an innovative design that has allowed increased loading beyond conventional DAF design. It was awarded WEF's Innovative Technology Award for waste water treatment in 1999. This design allows a smaller footprint, reduced installation costs, and quicker installation with high-flow packaged systems.

Envirex Cannibal Solids Reduction Process
View the Brochure ( 203 kb)

Using a solids “interchange” method, the CANNIBAL™ Process eliminates the biological waste sludge typically hauled or removed from an activated sludge treatment plant. This feat is accomplished through an interchange recycle between the aerobic activated sludge process and a specially controlled side stream bioreactor. The interchange flow rate is extremely important to the systems successful operation and is custom-design for each specific project. In the interchange bioreactor, the mixed liquor is converted from an aerobic dominant population to a non-aerobic dominant population. With limited oxygen in the interchange bioreactor, aerobic bacteria are selectively destroyed while enabling the lower yield facultative bacteria to break down the aerobic bacteria remains and by-products. With the interchange recycle back to the aeration process, the facultative bacteria, with their lower growth rates, are destroyed in the aerobic process. A patented application of screens and cyclones on the return sludge line make up a solids separation module that prevents the build-up of trash, grit and inserts.

 

ZABOCS™ Biological Odor Control System
View the Brochure ( 295 kb)

The ZABOCS™ biological odor control system is a multi-media system which combines gas absorption, adsorption and biological treatment to capture and then eliminate organic and inorganic odors from wastewater process air streams. The unique combination of proprietary Biodagene™ and Biocarb™ media enables the ZABOCS™ system to treat three times the air volume compared to similar sized conventional biofilter systems, while also being able to start treating odors immediately with zero acclimation time.

LO/PRO® Wet Scrubber Odor Control System
View the Brochure ( 234 kb)

RJ Environmental Products offers a complete line of wet scrubber odor control systems. By far our most popular, versatile and effective product is the LO/PRO® Packaged Odor Control System. Our system, designed to minimize space requirements, arrives at the job site completely assembled and of unitary construction. The chemical sump and absorption stages are housed in a single FRP chamber with manways for easy access to any part of the system. To date there are more than 160 LO/PRO® scrubber systems in operation worldwide.

Modular Carbon Absorber System
View the Brochure ( 888 kb)

Carbon adsorption is an effective solution to many odor control problems. It is particularly useful for small airflows, remote locations, and control of specific volatile organic compounds that are difficult to remove by wet scrubbing. We offer a complete line of carbon adsorption systems, ranging from small modular Systems (100 cfm to 1500 cfm) to larger, dual-bed systems (up to 15,000 cfm).