Separation Equipment

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Coalescing media

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Lantec HD Q-PAC high capacity plastic coalescing media increases water flow rates and improves oil recovery through oil water separators (OWS). Separators using the media can operate at liquid rates up to 12 gpm/ft2 and at the same time remove as much as 99.99% of oil droplets 20 microns and larger. The media's high coalescing surface is two to three times the effective surfaces of competitive media.

Lantec Products Inc.
Agoura Hills, CA
Tel: 818-707-2285

Demineralizer

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The Eco-Tec TriFlo™ Demineralizer produces very high purity water (i.e. conductivity of less than 0.1 microsiemens/cm) required to feed critical and super critical boilers. It does this in a single process with feedwaters containing up to 450 ppm of total dissolved solids. Space requirements for the unit are significantly less than for alternative equipment.

Eco-Tec Inc.
Pickering, Ontario,
Tel: 905-427-0077
Web: www.eco-tec.com

Resin chambers, systems

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Serfilco offers chambers to provide high quality deionized water when filled with a strong base mixed-bed resin. Product water is low in dissolved solids, CO2, and silica, with a resistivity of 10 megohms or higher. The company's resin has built-in resistance color indicator, changing from purple to golden brown to indicate resin exhaustion.

Serfilco
Northbrook, IL
Tel: 800-323-5431
Web: www.serfilco.com

Ion exchange treatment

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DI-SEP® Ion Exchange Systems from Smith & Loveless offer end-users a variety of systems for virtually any ion exchange need, including deionization, dealkalizing, and water softening applications. For ultra-pure, mining and boiler feed applications requiring deionization, the company offers deionization systems in separate-bed and mixed-bed configurations.

Smith & Loveless
Lenexa, KS
Tel: 913-888-5201
Web: www.smithandloveless.com

Sulfide ion detector

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Nextteq has released the Gastec Sulfide Ion Detector Tube no. 211. This tube provides a method for detecting sulfide ion levels in a solution. In just 2 to 3 minutes, direct-reading tubes produce a quantitative color-stain that quickly pinpoints problem areas. The calibration scale, printed directly on each tube, provides on-the-spot results that are easy to read. Unlike the traditional methyl-blue testing method, no color comparison chart is needed to help determine the results.

Nextteq, LLC
Tampa, FL
Tel: 813-249-5888
Web: www.nextteq.com

Filter cartridge

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Parker Hannifin Process Filtration Div. has recently introduced a new high flow filter cartridge and horizontal vessel series that can accommodate flows up to 9000 gpm per vessel. The MegaFlow Series filter cartridge provides flow rates up to 250 gpm per 40 inch cartridge, manufactured with FDA compliant polypropylene.

Parker Hannifin Corporation
Process Filtration Division
Indianapolis, IN
Tel: 317-275-8300
Web: www.parker.com

Ion exchange resin

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The Miex® magnetic ion exchange resin, offered by WesTech, is designed for the removal of dissolved organic carbon. The system can be used for reduction of disinfection by-products, including tri-halomethane generation in conventional treatment plants. The resin is also effective in reducing TOC fouling on RO Systems. This extends the life of membranes by lessening the frequency of chemical cleanings required to restore membrane efficiency. The system provides continuous ion exchange in contrast to the packed column type batch units, resulting in no plugging, and a constant high quality water supply.

WesTech Engineering, Inc.
Salt Lake City, UT
Tel: 801-265-1000
Web: www.westech-inc.com

Vortex separator

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The Grit King®, Hydro International's hydrodynamic vortex separator, is capable of removing fine grit and settleable solids from various waste streams. Since the separator operates through an all hydraulic process, it requires no external energy or moving parts, making it virtually maintenance free. It offers typical removal efficiencies of 95% of all particles equal to or greater than 150 microns with a SG of 2.65. Depending on the flow to be treated, the unit can be configured in either an above grade, freestanding system or in situ, allowing for larger diameters and greater throughput. Systems have been designed for flow ranges from 0.25 mgd up to 120 mgd. In addition, valving, grit classifiers, grit pumps and PLC based control systems for SCADA interface are available to provide a comprehensive grit removal package.

Hydro International
Portland, ME
Tel: 207-756-6200
Web: www.hil-tech.com

Filter cartridges

Pall Corp. has introduced Magnum™ Series High Capacity filter cartridges. These large, six-inch diameter absolute rated filter cartridges are designed to allow current bag filter users to upgrade to cartridge level performance with no change in hardware, since the new filters readily retrofit most existing size 1 and size 2 bag housings and baskets. The key is a patent pending sliding flange that adjusts the filter length to fit the current basket. Like bag filters, the new elements are designed to accept fluid flow from the inside to the outside of the filter. This feature allows all captured contaminant to remain trapped inside the filter thus preventing that contaminant from dropping into the clean side of the housing during change out. The new filters are suited to many applications involving water filtration including pre-RO, RO make-up water, boiler feed water, industrial water reclamation, and surface water pretreatment.

Pall Corporation
East Hills, NY
Tel: 516-801-9104
Web: www.pall.com

Arsenic removal

Media G2® from ADI Environmental is an iron-based adsorption filter media, certified to ANSI/NSF 61 for drinking water applications. The media removes arsenic from 1200 ppb to less than 2 ppb. The process is completely pressurized (no settling basins, and therefore no re-pumping required). The media can be regenerated 4 to 5 times - in-situ, in a process which takes only a few hours. All residuals pass the standard TCLP test as non-hazardous. Systems are available in capacities ranging from 50 to 5000 gpm.

ADI International Inc.
Fredericton, New Brunswick
Tel: 506-451-7407
Web: www.adi.ca

Container filters

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The Container Filter from Flo Trend Systems is a one-step method for separating and dewatering sludge, slurries and waste streams. Various applications include dewatering grit and bar screenings; street and storm lift station waste; as well as wastewater treatment plant waste streams. The simple design consists of the container, porous support plates and a filter media. The space between the support plates, the container walls and the floor is the drainage field for the liquid. Outlets on the bottom and side walls of the container allow for gravity drainage or pump suction of liquid from the filter. Available models include Roll-Off, Luggers, Self Dumping Hoppers, as well as Front, Rear and Side Loaders.

Flo Trend Systems
Houston, TX
Tel: 713-699-0152
Web: www.flotrend.com

Particle monitoring

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Analytical Technology has released a new particle monitoring system designed to provide filter effluent measurements for water systems. The C10/77 Sensor is a laser based system that counts and displays particles at 2, 3, 5, 7, 10, 15, 20, and 200 microns in size. An LED display on the front of the counter allows operators to view the current counts at any size, and also to display differential counts for adjacent size channels. The counter is ideal for continuously monitoring the outlet of filter systems to detect spikes in particle levels that indicate filter problems. The instrument can be adapted to a variety of filter systems, and provides higher sensitivity than conventional turbidity measurement.

Analytical Technology, Inc.
Oaks, PA
Tel: 800-959-0299
Web: www.analyticaltechnology.com

Filtration services

The HDR consulting firm can help with the technical and political challenges communities face as they evaluate their choices for water filtration. Water filtration systems may be as easy to operate as the slow-sand filters used by many small communities, or as technically and politically challenging as the low-pressure membranes increasingly adopted as they become more economical for large-scale use.

HDR
Omaha, NE
Tel: 402-399-4929

Tertiary filtration

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The EIMCO® Traveling Hood Filter is an innovative means of providing tertiary filtration of municipal wastewater streams. By incorporating the company's Trac-Vac® drive system, the expense and maintenance associated with a typical traveling bridge mechanism have been eliminated. The filter system offers a much reduced vertical profile, cleaner basin design, and reduced operation and maintenance costs in comparison to typical tertiary filtration methods.

EIMCO
Salt Lake City, UT
Tel: 800-826-6454
Web: www.eimcoprocess.com

Basket filtration

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Freedom Plastics' PVC Basket Filtration Housing is a solution for the highly corrosive conditions present in municipal applications. Featuring a non-corrosive internal construction, the housing is a choice for filtering sedimentation from chemicals such as sodium hypochlorite (bleach) and caustic soda. Available in Type1 or Type2 sizes using 16 in. and 32 in. filter bags, respectively, the housing is rated for 100 psi maximum operating pressure at ambient temperatures. Duplex (as pictured) and multiplex units are available for systems requiring continuous operation.

Freedom Plastics, Inc.
Janesville, WI
Tel: 800-356-9432
Web: www.freedomplastics.com

Gravity filters

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CenTROL gravity filters from USFilter maximize filter area in small building spaces while keeping installation and operating costs to a minimum. Clustered around a central control column and operating platform, four filter cells can be observed and controlled at once. The stainless steel control column with integral influent distributor is pre-fabricated with filter function valves that have been installed and shop-tested at the factory.

USFilter
Sturbridge, MA
Tel: 508-347-4578
Web: www.usfilter.com

Pile cloth media

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The latest development in Cloth Media Filtration from Aqua Aerobic Systems is a patented pile cloth media (PA-13) that consists of nylon fibers arranged in a pile construction on a polyester backing material. Pile Cloth media is designed for the AquaDisk® Filter and is used exclusively for filtering municipal and industrial wastewaters. This new media is an addition to cloth media already available for the AquaDisk® Filter. The new media reduces the cleaning energy required for tertiary filtration, resulting in less backwash water volume without compromising filtration performance.

Aqua-Aerobic Systems, Inc.
Rockford, IL
Tel: 815-654-2501
Web: www.aqua-aerobic.com

Gravity filter

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The Leopold® Performance Filter is a rapid gravity flow granular bed filter designed and engineered to achieve specific performance requirements of individual water treatment plants. Each aspect of the filter – filter media, backwash and controls – is tuned to achieve the maximum rate of filtration at the longest possible cycles. The company's filters are engineered to achieve optimum net production per square foot per day at high filtration rates. Its filter design consists of Engineered Filter Media® Anthracite, FRP Wash Troughs, Filterworx™ Automatic Control System, and Leopold Type S® and SL® Underdrains. The filters are covered with the company's Gold Tag™ Service.

F. B. Leopold Company, Inc.
Zelienople, PA
Tel: 724-453-2034
Web: www.fbleopold.com

Screening systems

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Copasac Screening Systems are designed to remove plastics, leaves and other floatables in secondary effluent streams ahead of disinfection units. The screening systems can reduce UV lamp maintenance by screening material that can become trapped in lamps. The system consists of an FRP body and removable nosebox with a stainless steel handle. They can be installed in secondary clarifier effluent launders or in manholes.

NSW, LLC
Roanoke, VA
Tel: 800-368-3610
Web: www.nswplastics.com/environmental

Filter systems

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Mycelx offers a line of 316 stainless steel filter systems with single unit flow rates from less than 1 gpm to 780 gpm using its HRM™ (Hydrocarbon Removal Matrix) cartridge to remove the pollutants to below detectable limits in a single pass with no backpressure. The filter systems are designed to take up a minimum of space and can be retrofitted into virtually any application or treatment train. The systems generate less waste than activated carbon (GAC) with greater removal efficiency.

Mycelx Technologies Corp.
Gainesville, GA
Tel: 888-306-6843
Web: www.mycelx.com

RO membranes

Koch membrane Systems offers its Fluid System™ products to reduce arsenic in drinking water. The TFC®-ULP® reverse osmosis membranes have undergone verification tests for arsenic removal. In laboratory testing, feedwater concentrations of 32 µg/L Arsenic V was reduced to an average level of 0.8 µg/L. Similarly, arsenic III was also rejected by the membranes, reducing the average feedwater level from 8 µg/L to 0.6 µg/L in the permeate. Dissolved arsenic, which represented 70 percent of the total arsenic, was reduced by 97 percent.

Koch Membrane Systems
Wilmington, MA
Tel: 800-343-0499
Web: www.kochmembrane.com

Filtration systems

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USFilter offers a variety of filtration systems and the components needed for rehabilitation of gravity filters and other systems. Its filtration components include monolithic and block style underdrains, washtroughs and launders, in-bed air wash grid systems, surface washers, standard and custom controls, a wide range of filter media and other components. The company can provide filter evaluations to help determine which parts need to be upgraded or replaced. To complete the project, it can provide on-site technical direction and the labor to install the parts and provide assistance in proper filter operation.

United States Filter Corp.
Sturbridge, MA
Tel: 508-347-4578
Web: www.usfilter.com

Membrane filtration

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USFilter's Memcor Products recently introduced the new PreMPT™ membrane filtration system, a mobile trailer that incorporates Memcor® CMF-S submerged microfiltration technology. The compact, containerized mobile system is ideal for applications that require high-quality water, fast delivery, mobility, a small footprint and simple installation. The system can be used to produce drinking water or to pretreat for reverse osmosis (RO) systems.

USFilter Memcor Products
Towson, MD
Tel: 410-307-6548

Filtration services

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Valve and Filter Corp. offers filtration equipment and can design, engineer and install filtration packages for most municipal filtration applications. The company is known for its line of VAF2000 self-cleaning industrial water filters. An example of a complete custom package is pictured. The unit takes water from a river, pumps it through two filters in parallel, and then flows into a UV system.

Valve and Filter Corp.
Arvada, CO
Tel: 303-425-4242
Web: www.valveandfilter.com

Filter system

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The Schreiber Fuzzy Filter® is a compressible media filter for water and wastewater treatment systems. It is compact, modular and easily adaptable for numerous applications, such as tertiary filtration or prefiltration before other systems such as membranes. The square configuration, operating in an upflow design, achieves a high rate of solids removal through the use of synthetic fiber spheres. Because the filter media is compressible, the total porosity of the filter bed can be altered to suit influent characteristics by mechanically compressing the media. These features permit hydraulic loadings of 30 gpm/ft2 of media and greater.

Schreiber Corporation, Inc.
Trussville, AL
Tel: 205-655-7466
Web: www.schreiberwater.com

Filtration products

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Severn Trent Services' filtration division offers the Tetra™ line of deep-bed filtration products including air and water backwash features. It provides filtration plant equipment and service for water and wastewater plants, filter underdrains, air distribution systems, troughs, weirs, media, anthracite, garnet, and installation and removal services. It also has pressure filters, biodenitrification filters, ammonia and BOD removal filters, ion exchange and arsenic removal equipment, and instrumentation and control packages for these systems. The line offers complete wastewater filtration, BioReactor systems, and separation technologies.

Severn Trent Services
Pittsburgh, PA 15275
Tel: 800-364-1600
Web: www.tetraprocesstec.com

Membrane filtration

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Zenon's new Modular Drinking Water (MDW) system was specifically designed to overcome the challenges faced by small communities of 50 to 5,000 people. The system is based on the ZeeWeed® immersed membrane technology, incorporated in and proven for large treatment plants. The technology is NSF 61 certified, and is the only membrane in the industry with a reinforced hollow fiber, guaranteeing a long membrane life. The new MDW system is an automated, single-step process that requires minimal operator supervision. This system will consistently produce permeate with a turbidity of < 0.1 NTU, > 4 log giardia and cryptosporidium removal, and can achieve up to 85% TOC removal. The systems are fully standardized, which allows for easy installation.

Zenon Environmental
Oakville, Ontario
Tel: 905-465-3030
Web: www.zenonenv.com

Membrane treatment

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Norit Americas is now offering membranes and membrane systems in addition to its activated carbon line. Its X-Flow brand of ultrafiltration membranes has already been proven in the largest ultrafiltration membrane system application in the world. The hollow fiber membranes provide removal of bacteriological, cryptosporidia and giardia contamination from water supplies. The membranes are rugged and chemical resistant. The company offers a supply of membranes, process engineering and pilot systems for testing.

Norit Americas Inc.
Atlanta, GA
Tel: 404-256-6150
Web: www.norit-americas.com

Membrane treatment

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Hydranautics has introduced HYDRAcap LD membranes, with 50% larger diameter capillaries than the company's standard HYDRAcap membranes. The new membranes are specifically designed to target EPA guidelines for reclaiming backwash waters with higher recoveries. The new membrane makes the company's low-fouling capillary ultrafiltration technology available for a wider range of applications.

Hydranautics Inc.
Oceanside, CA
Tel: 800-272-7873
Web: www.hydranautics.com

Plastic media

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A new style of plastic media, specially manufactured for biological filter applications, has been introduced by Jaeger Products. The company's Cascade Bio-Rings provide a surface area for a biomass to attach and grow. The rings are designed to provide greater void areas for the sloughing of biomass to pass while providing an optimum surface for biomass growth.

Jaeger Products Inc.
Houston, TX
Tel: 800-678-0345
Web: www.jaeger.com

Glass microfiber filters

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The Whatman 934-AH filters meet or exceed the requirements for suspended solids testing as specified in Standard Methods for the Examination of Water and Wastewater, 20th Edition. It is a 1.5 um smooth surface, high retention borosilicate glass microfiber filter that withstands temperature at 500 degrees C. Because the filters are binder free, they retain their weight during ignition.

Whatman Inc.
Clifton, NJ
Tel: 800-922-0361
Web: www.whatman.com

Filter bags

Hayward's Sentinel® all-welded-construction polypropylene or polyester felt filter bags are designed to eliminate the chance of filter bypass. The all-welded construction eliminates the holes in the filter media fabric caused by the sewing process used to create ordinary filter bags. The bags are available in both single length 7 in. by 16 in. and double length, 7 in. by 32 in. sizes.

Hayward Industrial Products
Elizabeth, NJ
Tel: 908-351-5400
Web: www.haywardindustrial.com

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