Filtration

Granular bed filtersThe 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, the media, backwash and controls, is tuned to achieve maximum filtration at the longest possible cycles. Also, the filters are engineered to achieve optimum net production per square foot per day at high filtration rates.F.B. Leopold Co. Inc.Zelienople, PATel: 724-453-2034Web: www.fbleopold.com

Click here to enlarge imageFilter bagPROGAF™ Filter Bags from Hayward Industrial Products allow users of cartridge filtration systems to take advantage of the benefits afforded by bag filtration -- including lower initial cost and less expensive disposal of used filtration media. The company's filter bags combine extended service life with efficiency ratings as high as 99.98%.Hayward Industrial Products, Inc.Elizabeth, NJTel: 908-351-5400, ext. 2213Web: www.haywardindustrial.com

Click here to enlarge imageSheet mediaNSW Dura-Pac PVC Sheet Media is designed for trickling filters, submerged fixed beds and oil/water separators. The sheet media is supplied in crossflow or vertical flow modules, with specific surface areas of 30, 42 and 60 ft2/ft3. The media may be shipped as sheets or preformed modules. In addition to providing the media, NSW staff will train a project contractor's personnel, so they may properly assemble the sheets into modules.NSW, LLCEnvironmental SystemsRoanoke, VATel: 800-368-3610Web: www.nswplastics.com/environmental

Click here to enlarge imageIron, manganese removalThe Smith & Loveless IronMan™ System is an iron and manganese removal system that combines the Fibrotex® filter with an integrated oxidation system. It is designed for municipalities that rely on well water sources for potable water. A key feature of Fibrotex technology is the marriage of the expandable-bed fibrous filter element with a PLC.Smith & LovelessLenexa, KSTel: 913-888-5201Web: www.smithandloveless.comMembrane bioreactorEnviroquip has introduced a membrane bioreactor (MBR) that reduces plant footprint, produces quality effluent, and requires little maintenance. By operating at MLSS concentrations between 15,000 and 30,000 mg/L, the footprint of a conventional plant is often reduced by 50% or more.Enviroquip, Inc.Austin, TXTel: 512-834-6000Web: www.enviroquip.comTest membranesWhatman has introduced a new method for the concentration and recovery of water-borne protozoan cysts and oocysts. Approved by the EPA for Method 1623, Cryptosporidium and Giardia in Water by Filtration, the CrypTest Membrane Filter Cartridge is designed for field sampling. The cartridge captures protozoan cysts and oocysts from sample water pumped through a disposable cartridge contained in a reusable housing.Whatman Inc.Clifton, NJTel: 800-332-1942Web: www.whatman.com/cryp

Click here to enlarge imageArsenic removalADI International's Media G2® arsenic adsorption technology is a low cost, simple removal system using a patented iron-coated filter media. The system has been used to treat water with up to 1200 ppb arsenic, providing reductions to less than 2 ppb.ADI International Inc.Fredericton, NB, CanadaTel: 506-452-9000Web: www.adi.ca

Click here to enlarge imageUltrafiltration membraneHydranautics' HYDRAcap capillary ultrafiltration membrane for surface water applications has received ANSI/NSF Standard 61 Certification, which establishes minimum requirements for the materials used in drinking water systems. The membrane modules provide up to 5-log pathogen removal, thus exceeding USEPA regulations for potable water use per the Surface Water Treatment Rule requirement.HydranauticsOceanside, CATel: 760-901-2529Web: www.hydranautics.comMicrofiltration systemAria™ Membrane Microfiltration systems are designed for drinking water filtration in municipalities with populations of 10,000 or less. The systems are skid-mounted, fully automated and self-contained to facilitate installation. Once programmed, the system will run unattended at a constant clean water production rate. The systems use Pall Microza™ microfiltration modules to provide drinking water purified to levels exceeding EPA's Surface Water Treatment Rule.Pall Corp.East Hills, NYTel: 516-484-5400Web: www.pall.comArsenic removalUSFilter's new Granular Ferric Hydroxide (GFH) media is an adsorbent designed to remove arsenic, chromium, lead, uranium, and other contaminants from water, without chemical addition. The media can be installed in pressure vessels to serve as "wellhead" arsenic removal systems. It can also be used in most applications where activated alumina is used to remove arsenic.USFilterWarrendale, PATel: 515-232-4122, ext. 463

Click here to enlarge imageModular RO systemMUNI Series™ reverse osmosis (RO) water treatment systems from Osmonics are specifically designed for municipal water treatment. These pre-engineered systems feature low energy consumption and require minimal engineering resources and floor space. With capacities ranging from 70 gpm to 2.5 mgd, the series' six standard models can meet the needs of communities with populations from 1000 to 10,000 people.Osmonics Inc.Minnetonka, MNTel: 888-898-6766Web: www.osmonics.comBiofiltersBiorem Technologies provides complete turnkey installation of biofilters for air emission control. The services include process development, including pilot plant operation if necessary, system engineering design, system installation and on-going process monitoring. Air purification systems eliminate the nuisance factor of noxious odors and the impact on workers and the surrounding population. Biological air filters provide cost-effective and reliable removal of water soluble contaminants from air streams.Biorem Technologies Inc.Guelph, Ontario, CanadaTel: 519-767-9100Web: www.bioremtech.comMonolithic filter floorOrthos Liquid Systems offers a Monolithic Concrete Filter Floor. The system's versatility allows the in-situ construction of new or retrofit suspended floors and permits efficient backwash and air scour. The form panels are available in either a flat profile for pier mounting or a corrugated style for use with dwarf walls. The panels can be cut on site for exact sizing without the loss of strength and rigidity. Nozzle densities can be specified and any nozzle offered by Orthos can be used.Orthos Liquid Systems, Inc.Bluffton, SCTel: 843-987-7200Filtration mediaBest Sand is a producer of high grade silica sand and gravel for use as filtration media. Washed and dried sands are available in an effective size/uniformity coefficient of .40-.50 mm/uc 1.5 to .80-2.00 mm/uc 1.7. Silica, anthracite and garnet gravels are available in a variety of sizes. Both sand and gravel can be shipped in bags ranging from 50 to 4,000 lb., or in bulk containers.Best Sand Co.Chardon, OHTel: 800-237-4986NanofiltrationThe Dow Chemical Co. is introducing a new line of FILMTEC® nanofiltration membrane module products. The membranes are available in several versions for specific application needs. The new NF90-400 membrane family is a high area, high productivity membrane module designed to remove most salts, nitrates, iron, and organic compounds.The Dow Chemical Co.Midland, MITel: 517-636-9086Web: www.filmtec.comNanofiltrationThe Fyne Process water treatment system from PCI Membrane Systems is a chemical-free nanofiltration membrane process designed to meet the needs of small communities. In an Environmental Technology Verification test at Barrow, AK, the system recently was demonstrated to meet the Stage 1 Disinfection By-Products Rule. For treating small surface water flows of 1000 GPD or more, the tubular membranes are low maintenance compared to some other systems. The units require minimal operator intervention, little to no source water pretreatment and infrequent chemical cleaning.PCI Membrane Systems, Inc.Milford, OHTel: 513-575-3500Web: www.pcims.com

Click here to enlarge imageFilter systemThe key to the AquaDisk® Filter system, manufactured by Aqua-Aerobic Systems, is its random weave, polyester cloth fabric media. Units range in size from a single disk up to 12 disks depending on flow rate. Each disk is composed of six segments and vertically mounted on a center tube. The media is simple to maintain and can be removed without special tools. During normal filtration, disks are totally submerged and remain static.Aqua-Aerobic Systems, Inc.Rockford, ILTel: 815-654-2501Web: www.aqua-aerobic.com

Click here to enlarge imageTurbidity measurementThe Accu4 online turbidity measurement system from GLI International employs the USEPA approved GLI Method 2, four-beam ratiometric measurement technique to provide low level turbidity measurement. This four beam measurement technique automatically calculates out interference's such as process color and sample chamber fouling.GLI International, Inc.Milwaukee, WITel: 414-355-3601Web: www.gliint.comUltrafiltration membranesInfilco Degremont's Aquasource™ ultrafiltration membrane system was developed specifically for drinking water treatment. With a 0.01 micron pore size, the hollow fiber membranes provide finished water that is guaranteed to test less than 0.1 NTU in permeate turbidity and to be free of all pathogens, including bacteria, cryptosporidium, giardia and viruses.Infilco Degremont Inc.Richmond, VATel: 804-756-7600Web: www.infilcodegremont.com

Click here to enlarge imageSelf-cleaning filtersAmiad has introduced the SAF-1500 self-cleaning automatic water filtration system. The filters are available in 2 in., 3 in. and 4 in. flanged SAF filters for flow rates up to 350 gpm. The filter systems feature electronically monitored cleaning with the flexibility of control options. A unique cleaning mechanism requires minimum flow and pressure for flushing.Amiad Filtration SystemsOxnard, CATel: 800-969-4055Web: www.amiadusa.com

Click here to enlarge imageReporting softwareXLReporter from SyTech is designed to automate municipal water filtration system compliance reporting. The system will collect and format all required data for monthly reporting to the DEP. With interfaces to all major HMI and SCADA products, and the support of industry standards, the software can be integrated with both new and existing systems for the purpose of mandatory compliance reporting.SyTech - "The Report Company"Walpole, MAWeb: www.TheReportCompany.com

Click here to enlarge imageStormwater filtrationMYCELX Technologies' Stormwater Filtration System fits in parking lot drain units and works to remove harmful pollutants found in stormwater runoff. The system, which can be used in plant floors, uses an easy-to-assemble gutter system in conjunction with the water filtration unit filled with SilaKleen, an expanded silicate, to catch the "first flush" of rainwater. This "first flush" contains the highest concentration of oil and gas contamination.MYCELX Technologies Corp.Gainesville, GATel: 770-534-3118

Click here to enlarge imageFiltration systemGravisand technology from USFilter Davis Products incorporates the principles and advantages of conventional traveling bridge designs but uses improved methods of accomplishing and maintaining filtration and regeneration. The system is ideal for use with suspended growth systems, attached growth systems (trickling filters) and, with appropriate configuration, for phosphorus removal, water reclamation and algae removal.USFilter Davis ProductsThomasville, GATel: 800-841-1550Web: www.usfilter.com

Click here to enlarge imageUnderdrain systemUSFilter has introduced the Multiblock™ water and wastewater filter bed underdrain system. Designed for retrofits and plant expansions, the underdrain supports single-, dual- or mixed-media without the need for an underlying support gravel bed, allowing for deeper media depths, reduced installation time and elimination of gravel upsets. The underdrains are used in pre-engineered modular treatment plants such as the Actifloc® and Trident® units.USFilter Corp.Warrendale, PATel: 724-772-1438Web: www.usfilter.com

Click here to enlarge imageWastewater filtrationAlar's Auto-Vac filtration system works in various applications every municipal plant has to deal with. Biosolids, restaurant grease trap, and septic tank wastes can all be processed through the Auto-Vac filter producing a clean filtrate and a 30-50% dry solid cake. The system can remove all suspended solids larger than 1/2 micron from wastewater before it enters the plant. The company offers a "Perfect Match" program that will analyze a sample of waste for filtration needs at no cost, and provide a detailed recommendation based on the specific application.Alar Sales, Inc.Mokena, ILTel: 708-479-6100Web: www.alarcorp.com

Click here to enlarge imageIron, manganese removalElectromedia 1 from Filtronics uses a proprietary adsorptive media that is cleaned by backwashing. Well water containing iron, manganese and hydrogen sulfide is chemically treated with chlorine in a first tank. This step oxidizes the elements to a processable form and provides free chlorine residual to the water distribution system. The second step is to introduce a catalyst to accelerate the reactions and condition the water for final filtration, where the minerals are removed. The chemical pretreatment is manually set and automatically operated with stand-by reserve to provide continuous uninterrupted treatment.FiltronicsAnaheim, CATel: 714-630-5040Web: www.filtronics.comSelf-cleaning filtersA2 Water Process Solutions offers the Arkal Disc Filtration System for filtering wastewater. As turbid water travels through the disc filter, debris is captured on the exterior wall and interior grooves of a stack of compressed discs. The backwash cycle expands the disc stack automatically and a series of nozzles spray a mixture of high pressure water and air against the loosened discs, spinning them clean. At the end of the backwash cycle, the disc stack automatically compresses and returns to the filtration cycle.A2 Water ProcessGregory, TXTel: 361-777-3234Web: www.a2water.com

Click here to enlarge imageTurbidity sensorsThe Liquisys CUM 223/253 turbidity analyzer and the CUS 31 sensor from Endress+Hauser offer features that eliminate coating and clogging concerns. The sensor can be installed directly into the waterline. Because of the self-calibrating opto-electronics, the sensor is without drift — eliminating recalibration needs and reducing maintenance. Two automatic cleaning options are available. The CUS31/CUS31-W sensor is based on the 90 degree scattered light method and can be installed in-line to avoid additional sampling systems.Endress+HauserGreenwood, INTel: 900-428-4344Web: www.us.endress.com

Click here to enlarge imageFiltration systemUSFilter features the Kruger Products Hydrotech Discfilter system for fine solids removal and product recovery. The filters employ woven cloth filter elements installed on multiple discs which allows for a large filter area within a small footprint. The compact design makes this system a good choice for effluent polishing of wastewater; water reclamation and reuse; algae removal; and other filtration applications where a space-saving filter with fine filter openings and a large filter area are required.USFilter Kruger ProductsCary, N.C.Tel: 919-677-8310

Click here to enlarge imageDownflow sand filterThe Strata-Sand™ optimized combination of technologies from Ashbrook is the first sand filter to offer continuous, steady-state operation in a multigrade, deep bed, downflow design. This makes the filter system ideal for municipal applications, including: tertiary filtration and potable water treatment. The benefits of system include uninterrupted flow of filtrate; outstanding particulate removal, no solids breakthrough and a low reject rate.Ashbrook CorporationHouston, TXTel: 800-362-9041Web: www.ashbrookcorp.comImmersed membrane filtrationThe ZeeWeed® immersed membrane filtration system from Zenon is ideal for reverse osmosis pretreatment. It consistently yields a silt density index (SDI) less than 3, regardless of the influent total suspended solids (TSS) and SDI. Through an enhanced coagulation process, the system also reduces raw water total organic carbon (TOC) up to 90%, further improving the performance of the RO system.Zenon Environmental Inc.Oakville, Ontario, CanadaTel: 905-465-3030Web: www.zenonenv.com

Click here to enlarge imageMicrofiltrationUSFilter offers the Memcor® Continuous Microfiltration (CMF) system for small to medium drinking water and wastewater facilities. The Memcor CMF-S (Continuous Microfiltration-Submerged) system is available for larger applications. It is provided as a pre-engineered modular membrane system designed to be submerged into new or existing open rectangular steel or concrete tanks.USFilter MemcorSturbridge, MATel: 760-804-5844Carbon filtration unitsCarbtrol supplies a line of carbon canisters and adsorbers for potable water applications. The units range in flows from 10 gpm to 100 gpm and contain from 90 lbs. to 1700 lbs. of high activity virgin carbon. The units feature fiber wound epoxy construction with NSF listed components and are supplied with NSF certified carbon. The filters are supplied with removable inlet/outlet manifolds to allow field changeout of spent carbon.Carbtrol Corp.Bridgeport, CTTel: 203-337-4340Web: www.carbtrol.com