WASTEWATER FILTRATION WHITE PAPERS AND CASE STUDIES

Disinfectant Residual Control System Eliminates Need For Deep Cycling, Breakpoint Chlorination And Improves Pressure Zone Water Quality
Disinfectant Residual Control System Eliminates Need For Deep Cycling, Breakpoint Chlorination And Improves Pressure Zone Water Quality

Walnut Valley Water District spans a 29 square mile area in semi‐arid southern California about 20 miles east of Los Angeles. Like many water districts planning for growth amid periodic droughts is challenging and compounded by the need to deliver high quality water throughout the district of over 100,000 people and more than 26,000 service connections. Read the full case study to learn how Walnut Valley aggressively pursued operational strategies in their water storage tanks to limit nitrification risk.

  • Improving The Quality Of Secondary Wastewater For Indirect Potable Reuse—From Pilot To Full Scale Plant
    Improving The Quality Of Secondary Wastewater For Indirect Potable Reuse—From Pilot To Full Scale Plant

    In spite of the recent abundance of water, many of California’s aquifers continue to balance on the edge of water scarcity. Decades of overpumping have reduced the amount of ground water available to supplement surface water resources diminished by drought. The Pure Water Monterey Ground Water Replenishment Project (Monterey Pure), addressed the need to replenish a local aquifer, by piloting Advanced Water Treatment (AWT) processes, to determine the best method to convert secondary wastewater into a pure water resource.

  • UV Disinfection Upgrade For Water Reuse - EWA Beach, Hawaii (Case Study)
    UV Disinfection Upgrade For Water Reuse - EWA Beach, Hawaii (Case Study)

    The Honouliuli Water Recycling Facility (WRF) includes filtration and UV disinfection to treat to Class R-1 reuse standards for various uses, including irrigation. In order to maintain high-level reuse, simplify maintenance, and reduce operation costs, the Honolulu Board of Water Supply decided to replace its 15-year-old TrojanUV4000™ with a TrojanUVSigna™.  With the high cost of power in Hawaii, this system upgrade will provide significant power savings (estimated at 75%) and will enable equipment payback in less than 2.5 years.

  • City Validates Innovative Reuse Treatment Options Without RO
    City Validates Innovative Reuse Treatment Options Without RO

    Hollywood, Florida’s 55.5 MGD Southern Regional Wastewater Treatment Plant (SRWWTP) treats wastewater from Hollywood and six neighboring municipalities in the southern region of Broward County. Florida’s outfall rule requires the city to begin a process to largely eliminate the use of its ocean outfall and implement 20.4 MGD of additional reuse on an annual basis.

  • Dairy Processing Plant Maximizes Performance With New Scaling-Resistant Solution
    Dairy Processing Plant Maximizes Performance With New Scaling-Resistant Solution

    Wastewater from dairy applications has high amounts of calcium and phosphorus. This characteristic may cause scaling on the media of a Moving Bed Biofilm Reactor and may cause poor COD removal. Veolia was able to retrofit the client’s existing MBBR with the newly designed Z-MBBR media by AnoxKaldnes, which improved the operation of the entire wastewater system.

  • Meeting Strict TN Limits: ANITA™ Mox
    Meeting Strict TN Limits: ANITA™ Mox

    The City of Durham, NC, completed a comprehensive wastewater master plan that evaluated different treatment techniques for meeting strict total nitrogen (TN) limits at the South Durham Water Reclamation Facility (SDWRF).

  • Increasing Capacity: AE-DENITRO + Hydrotech Discfilter
    Increasing Capacity: AE-DENITRO + Hydrotech Discfilter

    The City of Palm Coast, located on the east coast of Florida, expanded their existing Wastewater Treatment Plant (WWTP) to increase capacity to 6.83 MGD due to population growth, as well as add the production of reclaimed reuse water for use within the City.

  • Discfilter Fixes TSS Effluent And Capacity Issues
    Discfilter Fixes TSS Effluent And Capacity Issues

    The Oconomowoc, WI Wastewater Treatment Facility (WWTF) needed to repair or replace the existing shallow bed traveling bridge sand filters.

  • AnoxKaldnes Expertise- Rocky Mountain Region
    AnoxKaldnes Expertise- Rocky Mountain Region

    The AnoxKaldnes™ MBBR (Moving Bed Biofilm Reactor) process is a biological wastewater treatment process that utilizes specialized plastic carriers to create a surface on which a biofilm can attach.

  • Mobile Membrane Systems Provide Emergency Response
    Mobile Membrane Systems Provide Emergency Response

    When emergencies inevitably arise, municipal operators need to be prepared to respond immediately to restore services in order to provide safe, reliable water to their customers. Take for example the City of Cisco, Texas.

  • Exceeding Phosphorus Limits Required For Environmental Wastewater Reuse
    Exceeding Phosphorus Limits Required For Environmental Wastewater Reuse

    In 2002, Georgia’s City of Flowery Branch faced strict new requirements about discharging water back into nearby Lake Lanier, a community drinking water source, compelling the city to find an alternative wastewater system. After a thorough evaluation of various wastewater treatment solutions, Pall Corporation’s Aria FLEX membrane system was selected due to its critical ability to meet the phosphorus limits.

City Of Windsor, Ontario, Improves Water Quality In Great Lakes With PolyBlend® Polymer Preparation System
City Of Windsor, Ontario, Improves Water Quality In Great Lakes With PolyBlend® Polymer Preparation System

The City of Windsor in Ontario, Canada, owns and operates two wastewater treatment plants.

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WASTEWATER FILTRATION PRODUCTS

Hydro-Clear® Sand Filter Hydro-Clear® Sand Filter

When you need gravity filtration, use the Hydro-Clear® pulsed-bed sand filtration system. It features a unique underdrain system and a shallow bed of mono-media, fine-grained sand, a design which permits the filter media to be “pulsed” periodically as solids build up.

TETRA™ DeepBed™ Tertiary Filtration System TETRA™ DeepBed™ Tertiary Filtration System

The TETRA™ DeepBed™ tertiary filtration system is an economical solution for the removal of total suspended solids and total phosphorus.

microBLOX™ System microBLOX™ System

microBLOX™ Membrane Bioreactor (MBR) systems are fully functional solutions to wastewater treatment problems and are ideally suited for a wide range of applications, including, but not limited to: housing developments, state parks, rest areas, isolated communities, military camps, shopping malls, golf courses, resorts, casinos, sewer mining (scalping), some industrial and more.

Leopold® Type XA™ Underdrain Leopold® Type XA™ Underdrain

Engineered for easy installation, with a revolutionary new low profile design that provides superior versatility and performance, the Leopold® Type XA™ underdrain gives you
and your client peace of mind.

High Speed CSO Filtration System High Speed CSO Filtration System

As measures of improving the combined sewer system, this high rate filtration system filters the rain water, which flowed directly to the river before, by using our original filter media. This new treatment system can be installed in the existed facilities and supplies stable filtrations for rainfall flow fluctuation.

Leopold® I.M.S® 200 and I.M.S® 1000 Media Retainers Leopold® I.M.S® 200 and I.M.S® 1000 Media Retainers

Introducing I.M.S® 200 and I.M.S® 1000 media retainers from Leopold®. Designed to improve the efficiency and reliability of both water and wastewater filtration systems.

Premium SureSafe Cartridges Premium SureSafe Cartridges

Harmsco® SureSafe™ cartridges are fabricated with the latest in Silver Zeolite technology and provide antimicrobial protection on the cartridge, outlasting the competition.

DuoSphere™ Biogas Storage DuoSphere™ Biogas Storage

Over the years, WesTech has supplied our customers with anaerobic digestion equipment that has added value to their plant operations. WesTech continues to provide valuable solutions with the DuoSphere™ Dual Membrane Gasholder.

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WASTEWATER FILTRATION PODCASTS

De Nora Doubles Down On Innovation De Nora Doubles Down On Innovation

With 29 locations, 1,600 employees and research facilities in Japan, Italy and the United States, DeNora is one of the largest disinfection and filtration companies in the world. As Gary Lohse, Regional Sales Manager for De Nora, explains in this Water Online Radio interview, the acquisition of the former Severn Trent manufacturing division coupled with De Nora’s product innovation strength is driving enhancements to some of the most respected brands in the water industry.

Selecting The Right Membrane For The Job Selecting The Right Membrane For The Job

In this Water Online Radio exclusive interview, Fred Wiesler, Global Director of Sales for the QUA Group, discusses some of the company’s key products, including the EnviQ that uses a flat sheet PVDF membrane, and has a .04-micron pore size. It provides ultrafiltration quality water, with the strength of a PVDF flat sheet membrane.

Decentralized Membrane Treatment Technology Decentralized Membrane Treatment Technology

In the early 90s, Bio-Microbics introduced membrane treatment technology, traditionally used in drinking water treatment plants, to the decentralized treatment market. In this Water Online Radio interview, Jennifer Cisneros, Director of Marketing for Bio-Microbics and Chair of the National Onsite Wastewater Recycling Association’s Marketing Committee, discusses the use of the onsite technology at an oyster bar where Total Kjeldahl Nitrogen (TKN) was about three times the level of ammonia.

High Flux Rates Reduce Energy Footprint Of Membrane Filtration High Flux Rates Reduce Energy Footprint Of Membrane Filtration

PPG Industries has spent the last four years developing and field testing a membrane-based filtration technology that has arrived in the market as both a flat sheet and a spiral on filter cartridge.

Next Generation Membranes For Water Reuse Next Generation Membranes For Water Reuse

Born out of UCLA and the California Inner Systems Institute, Water Planet is focused on revolutionizing water reuse through next generation membrane technology. As Erik Hoek, CEO of Water Planet, explains in this Water Online Radio interview, the company has two core technologies.

Water Reuse Becomes Builders’ Selling Point Water Reuse Becomes Builders’ Selling Point

One way to think about offsetting water rate increases is to reuse the water being consumed. For example, instead of paying $100 a quarter and using the water flowing out of faucets just once, what if you as a homeowner could treat that wastewater on site and reuse it to irrigate the lawn, wash the car, or flush the toilets?

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WASTEWATER FILTRATION VIDEO

Grit Removal System Design — How To Design An Effective System Grit Removal System Design — How To Design An Effective System

There are important tips to consider when designing grit removal systems, especially when different kinds of vortex systems are being considered. Baffled, flat-floor chambers, stacked-tray grit systems and sloped-floor, mechanically-induced vortex systems (MIVs) each have different nuances for sizing related to flow and the influent grit profile. The following short video shares two important tips to know in just two minutes.

Amiad Arkal Spin Klin Filter Video Amiad Arkal Spin Klin Filter Video

The Amiad Arkal Spin Klin automatic self-cleaning filters utilize disc elements, offered with filtration degrees from 400 to 20 micron. The innovative disc technology offers superior removal of algae and organics in municipal, industrial and irrigation applications, and the polymeric construction makes these filters ideal for use in seawater or corrosive environments.

Amiad ABF Filter Video Amiad ABF Filter Video

The Amiad ABF automatic self-cleaning screen filters are brush cleaned filters offering coarse filtration from 3500 to 200 micron. These filters are built for high-flow and/or low pressure, heavy duty applications including wastewater treatment, industrial intake and irrigation.

Expanding Submerged Plant Operating Window Through Double-Ended Filtration Expanding Submerged Plant Operating Window Through Double-Ended Filtration

The Memcor® CSII double-ended filtration system features innovative double-ended filtration that uses up to 20 percent less backwash aeration energy. The proven module design reduces footprint by up to 30 percent or utilizes new space and increases capacity up to 30 percent.

How To Assemble And Install A Polychem Chain Flight System How To Assemble And Install A Polychem Chain Flight System

Polychem non-metallic chain and flight systems are comprised of the finest quality components available in today's market. Reliably constructed and economically designed, these products function efficiently as part of any clarifier system. Learn how they are assembled and installed in the tank by watching this animation.

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WASTEWATER FILTRATION NEWS

More Wastewater Filtration News

ABOUT WASTEWATER FILTRATION

Wastewater filtration is often part of the tertiary treatment process that involves the final removal of suspended particles from water that has passed through both the primary and secondary treatment phases and immediately precedes disinfection. As the water passes through the filter, residual suspended material and bacteria is trapped in the filter and are removed from the filtered water. Passage can be blocked by physical obstruction, biological action, adsorption, absorption or a combination of ways. Wastewater filtration is usually the final step in the solids removal process.

With regulations increasing around wastewater effluent, the use of ultrafiltration and microfiltration systems in further polishing effluent has grown. Sand or activated carbon filters can provide a media for bacterial decomposition of nutrients, converting nitrates into nitrogen gas. The rise of water reuse applications is also fueling the increasing use of filters during the final polishing stages of the wastewater treatment process.