Water Treatment Equipment

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Rex® Modified Ristroph Fish Handling Traveling Water Screens
The Rex® Modified Ristroph fish handling traveling water screen has been designed to meet the most demanding environmental regulations. Only USFilter’s Rex brand can claim to provide the proven Modified Ristroph style fish-handling screen. Rex fish handling screens protect marine life.

Stop Gate (Link-Belt®)
Rex® and Link-Belt® Stop Gates are used to isolate intake channels for periodic inspection and maintenance. Applications for their use include power generating stations, industrial plants, pulp and paper mills, oil refineries, food processors and water treatment plants.

Stop Gate (Rex®)
Rex® and Link-Belt® Stop Gates are used to isolate intake channels for periodic inspection and maintenance. Applications for their use include power generating stations, industrial plants, pulp and paper mills, oil refineries, food processors and water treatment plants.

Traveling Water Screen, Center Flow (Link-Belt®)
The Rex® and Link-Belt® Center Flow Traveling Water Screen is positioned so the debris is trapped in the direction of the flow. Wall mounted structural components guide the screen tray and baskets. Overhead spray nozzles dislodge debris into removal trays.

Traveling Water Screen, Center Flow (Rex®)
The Rex® and Link-Belt® Center Flow Traveling Water Screen is positioned so the debris is trapped in the direction of the flow. Wall mounted structural components guide the screen tray and baskets. Overhead spray nozzles dislodge debris into removal trays.

Traveling Water Screen, Dual Flow (Link-Belt®)
Rex® and Link-Belt® through flow traveling water screens have screened debris from raw water intakes at thousands of installations worldwide in every water using industry, regardless of the water condition. Applications for their use include power generating stations, industrial plants, pulp and paper mills, oil refineries, food processors and water treatment plants.

Traveling Water Screen, Dual Flow (Rex®)
Rex® and Link-Belt® through flow traveling water screens have screened debris from raw water intakes at thousands of installations worldwide in every water using industry, regardless of the water condition. Applications for their use include power generating stations, industrial plants, pulp and paper mills, oil refineries, food processors and water treatment plants.

Traveling Water Screen, Through Flow (Link-Belt®)
Rex® and Link-Belt® through flow traveling water screens have screened debris from raw water intakes at thousands of installations worldwide in every water using industry, regardless of the water condition. Applications for their use include power generating stations, industrial plants, pulp and paper mills, oil refineries, food processors and water treatment plants.

Traveling Water Screen, Through Flow (Rex®)
Rex® and Link-Belt® through flow traveling water screens have screened debris from raw water intakes at thousands of installations worldwide in every water using industry, regardless of the water condition. Applications for their use include power generating stations, industrial plants, pulp and paper mills, oil refineries, food processors and water treatment plants.

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Johnson intake systems have long been the most cost-effective, trouble-free means of surface water extraction. Now they’re even better. Average through-slot velocity - and intake capacity - has been increased by 30% while remaining below the 0.5 feet-per-second (fps) limit. The list of Johnson screen advantages now includes:

Reduced size
Johnson’s new design allows a smaller, more easily handled screen to be used. A 36" Johnson high capacity screen, for example, can equal the capacity of a competitive 42" screen.

Reduced maintenance
Johnson screens have no moving parts, a non-plugging slot design and use corrosion

Environmentally friendly
Uniform intake flows under 0.5 fps present no danger to aquatic life.

Easy cleaning
Our unique air back wash systems are remote controlled - no hands-on work with divers or on-land debris disposal.

Adaptability
We design for special conditions. For example, mussel-repelling alloys are used when infestations are high. For very shallow water, we design custom, manifolded screen layouts. For replacing old intake installations we supply special bulk-head-mounted Johnson screens.

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The product of many years of research and development, the Actiflo ballasted clarification process, developed by OTV, will solve the most severe treatment problems and meet economic objectives, a growing preoccupation of municipal and industrial managers. The Actiflo process represents the most advanced available clarification process on the market. Having quickly achieved worldwide recognition, the Actiflo process is the solution best suited to the treatment of a wide variety of raw water qualities. Compact, flexible and easy to operate, the Actiflo ballasted clarification process is ideal for upgrading existing water plants, as well as for installation in new water facilities.

The Actiflo process provides numerous advantages over all known settling processes presently in use.

Economy
Micro-sand vigorous mixing considerably reduces coagulation and flocculation time and, consequently, the overall footprint of the mixing and flocculation chambers. High flow rates (40 to 70 m 3 /h per m 2 of surface) produce compact installations and low civil costs, ideal for upgrading existing plants. Efficient use of chemical dosage produces an important reduction in operating costs.

Stability and Flexibility
Changes in raw water characteristics (turbidity, pH, temperature) do not significantly affect the clarified effluent quality. The process will accept wide swings in flow rates (between 0% and 150% of nominal flow) with no effect on effluent quality. The stability of the process simplifies its operation.

Water of superior quality
The coagulation/flocculation phase produces a consistent clarified water of superior quality for all raw water conditions.

Responsiveness
The Actiflo is capable of very rapid start-up and responds quickly to changed operating conditions. Effluent turbidity exceeding accepted standards will be attained in less than 30 minutes after start-up.

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.)

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The MIEX® Resin is designed specifically to be used in a continuous ion exchange process that utilizes the high surface area of the resin beads to provide ion exchange in mixed or fluidized bed reactors at very low resin concentrations and short detention times. The magnetic properties of the resin beads result in the beads forming agglomerates that will settle rapidly or fluidize at high hydraulic loading rates, thus allowing small unit process footprints. There are two reactor configurations in which the MIEX® Resin can be applied. A description of the reactor configurations and regeneration process is as follows:

Resin Regeneration Process

A small volume of resin is continuously removed from the reactor vessel to the regeneration system. Fresh regenerated resin is returned to the reactor to maintain a consistent ion exchange capacity. The continuous withdrawal of loaded resin and return of regenerated resin ensures a consistent treated water quality and prevents the chromatographic peaking that can occur with conventional ion exchange columns. Brine solutions typically consist of NaCl but other salts such as KCl, MgCl2 or NaHCO3 can also be used if sodium or chloride is not desired in the waste discharge.

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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.

ZeeWeed Membranes for Municipal Drinking Water

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Are you confident that your existing water treatment system can protect your community from viruses, bacteria and other harmful pathogens? From greenfield plants to retrofits, more communities are trusting ZeeWeed immersed membranes to safeguard public health and ensure regulatory compliance—at a cost that is comparable to conventional technology.

The picture featured to the right is of a ZeeWeed 500 process train

Packaged Plants for Water and Wastewater Treatment

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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.

ZeeWeed 1500 Pressurized Ultrafiltration

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Drawing on knowledge gained at some of the world’s first - and some of the world’s largest - operating UF membrane
facilities, the pressurized ZeeWeed 1500 is designed to offer outstanding versatility and value. From packaged plants
offering quick delivery and rapid installation to custom solutions engineered to meet exact specifications, ZeeWeed 1500 systems provide municipal and industrial customers with a wide range of unique advantages:
• Low-fouling PVDF membrane chemistry requiring less frequent and less aggressive cleaning
• Outside-in filtration process providing uniform flow distribution and solids loading with no blocked fibers
• Ultrafiltration barrier to produce high quality effluent
that meets or exceeds treatment requirements
• High solids tolerance, capable of handling high turbidity spikes and coagulant doses
• Lower chemical usage over comparable systems
• Compact module and simple rack design, with on-rack inspection capability
• Ability to retrofit other outside-in UF and MF systems
• Simple, automated operation
• Packaged and custom designs for greenfield or retrofit solutions

Triton / Johnson Screens

Johnson Screens Underdrain Product Introduction

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Eliminate the gravel and the headaches from your filters.
The large openings in conventional filter underdrain collectors require an intermediate layer of support gravel between the collectors and finer-grained filter media. During backwashing, bed upset can take place in which the support gravel is carried to the bed surface and filter media moves downward into the collectors. To avoid this recurring maintenance problem, we developed the Triton underdrain. Using fine-slot Johnson screens, we've eliminated the support gravel; the treatment media is directly retained by the screen. This means new systems can use smaller tanks, retrofits can use more filter media in existing tanks, and - in every case - filter bed upset is eliminated.

Other Triton (R) Underdrain advantages:
There are other advantages as well. Because the floor of the filter is virtually wall-to-wall screen, air/water backwash is uniformly distributed throughout the bed with very little loss of energy. A single, center channel collects flow and distributes backwash - no need for a complete false floor. Installation of the screen sections is simple, requires no special equipment, and is easily done by a single worker. Long, high-capacity filter runs are made possible by the plug-resistant design of the screen. Like our other screen systems, it is extremely adaptable.

Monobloc / General Filter

General Filter Underdrain Product Introduction

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MULTIBLOCK™ underdrain is a part of the USFilter family of products. The underdrain has a snap together design for quick and easy installation. The underdrain is equipped with a stainless steel or HDPE "shield" having a unique design that contacts each side of the block for a secure seal. The "shield" is secured to each block along the center and sides of the block with a three-screw hold-down system. The stainless steel Laser Shield™ media retainer includes openings less than .22 mm and the HPDE Shield has a 500 micron porosity. To increase filter backwash cleaning efficiency, the underdrain can be provided with our MULTIWASH® technology for a simultaneous air/water backwash that provides vigorous scouring action to return a clean filter bed without media loss.

Type S / Leopold

ITT / Leopold® Underdrain Product Detail

Improved Underdrain Performance for Superior Results

Because the upward flow of air through an underdrain creates low-pressure zones in the underdrain, some orifices can become starved for flow... or even reverse flow.

Leopold has designed a water recovery channel into its Type S™ Technology Underdrain to help ensure uniform and continuous airflow from all of the top deck orifices. The water recovery channel is designed to allow water to re-enter the underdrain to equalize the low-pressure areas. This dramatically improves the performance of the underdrain and provides superior results, particularly with the dual lateral design.

The results of Type S technology are real: Broader airflow range, now 1 to 5 scfm/sf. Improved air stability under all operating conditions with all orifices providing uniform and continuous airflow. Lower water maldistribution - less than 5 percent (total).

MS Filter Inc. Filtration Product Introduction

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MS Filter Inc. has developed and tested a new Multi-Stage Filtration process that effectively treats raw water with high turbidity, algae, and color without the use of pre-treatment chemicals or complex filter backwash procedures. The process is designed for smaller systems ranging from 20 to 2,000 in population.

The Multi-Stage filtration process is based around a slow sand filter. Slow sand filtration is a proven treatment process which in the past ten years has been gaining popularity due to its inherent simplicity of operation. Typical slow sand filter designs, however, are limited in application to good quality raw water sources. In general, acceptable raw water conditions for the conventional 'slow sand' process are:

• Low Turbidity
• Low Color
• Low Algae Count

Therefore, this has precluded its use in many smaller communities which could benefit most from its operational simplicity. The Multi-Stage Filtration process overcomes limitations while retaining the passive simplicity of slow sand operations.

ITT / Leopold® Media Filter Product Detail

Leopold, with its state-of-the-art anthracite filter media processing facility, can deliver the lowest UC anthracite filter media available on the market today. This means you can operate your water plant longer before backwashing. And when you backwash, you’ll use less filtered water. This reduction in backwash frequency has the added advantage of reducing media attrition over time. Moreover, low-UC anthracite filter media extends the life of your filter before the media must be changed out. Low-UC anthracite typically produces consistent improvements in turbidity removal, due, in part, to more efficient solids loading. Plus, low-UC media produces smaller changes in effluent turbidity during periods of peak influent turbidity.

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Below 1 MGD

Wallace & Tiernan Ultraviolet Product Introduction

Barrier™ UV – A Series
The Barrier™ UV System is ideally suitable for small to medium community drinking water systems as well as non-community systems. The addition of ultraviolet technology provides a multi-barrier approach to the disinfection process. It ensures the inactivation of waterborne pathogens including protozoa such as crytosporidium and giardia.
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Barrier™ UV – B Series
The Barrier™ UV System is ideally suitable for small to medium community drinking water systems as well as non-community systems. The addition of ultraviolet technology provides a multi-barrier approach to the disinfection process. It ensures the inactivation of waterborne pathogens including protozoa such as crytosporidium and giardia.

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Above 1 MGD

Wedeco Ultraviolet Product Introduction

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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.

UV Disinfection Systems :

BX Series

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The reactors of the UV disinfection series BX are equipped with low pressure / high intensity UV lamps, which are arranged parallel to the water flow inside the reaction chamber. From
model BX 80 onwards the most powerful Spektrotherm®HP lamps are applied. A special baffle plate design creates turbulence which allows the system to achieve high disinfection levels.
These UV systems can either be mounted horizontally or vertically
into existing pipe lines and are equipped with a separate electrical
cabinet.

K- Series

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UV is now used worldwide to disinfect potable water. Countless water utilities and big cities already rely on UV to disinfect their drinking water. Pathogenic bacteria, viruses and parasites such as Cryptosporidium and Giardia, are effectively inactivated by UV light. Disinfection with UV does not lead to the increased resistance associated with the use of antibiotics and, increasingly, chlorination. UV disinfection is being used successfully for groundwater, spring water, well water and surface water.

Spektron

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The biodosimetrically tested UV systems from the Spektron product range meet all the requirements of safe and environmentally friendly water disinfection according to §11 of the German drinking water regulation (TrinkwV 2001). They are certified according to Austrian ÖNORM and German DVGW directives.

The robust construction makes them certifiably usable in waters with high humic contents or in environments with increased requirements in terms of EMC protection. The new uv reactor construction ensures simple installation withinvirtually any space limitation.

Ozone Systems for Drinking Water

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As one of the leading ozone equipment manufacturers worldwide, WEDECO is able to supply ozone equipment for upgrading existing plants as well as to enginee rand deliver complete ozone processes for a wide range of water treatment applications. A highly qualified international staff, with broad experience gained during the last 30 years and an emphasis on future oriented products and processes ensure that WEDECO is your perfect partner for drinking water treatment.

Small Wedeco Ozone Systems

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ITT ’s WEDECO Modular and GSA/GSO ozone generators are designed to produce ozone
more effectively at high concentrations up to 16 weight% ozone. They offer the highest ozone concentration yields at lowest energy demand. System parameters are monitored and displayed to ensure a safe and reliable operation. The result is maximum ozone production, minimum operating costs and an unmatched reliability.

PCI-Wedeco Ozone Product Introduction

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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!

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Traces of organic contaminants, pesticides, biocides or medicines are frequently to be found in drinking
and waste water. If absorbed via drinking water sources or through the food chain, the risks inherent for the health and genetic inheritance of human beings and animals alike are long term. Biological waste water treatment is no longer sufficient to guarantee complete decomposition. Ozone oxidation and the Advanced
Oxidation Process are well-suited to eliminating these pollutants. A potent oxidation agent, ozone alone is selective in the agents it reacts with and, under certain conditions, can form hydroxyl radicals possessing a high reactive capacity.

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For more information, please visit: www.stancoprojects.com