WASTEWATER FILTRATION WHITE PAPERS AND CASE STUDIES

Ecomuseum Zoo: High Efficiency Filtration Reduces Turbidity & Maintenance Costs
Ecomuseum Zoo: High Efficiency Filtration Reduces Turbidity & Maintenance Costs

​The Ecomuseum Zoo is home to the most impressive ambassadors of Quebec’s wildlife. All residents of the Ecomuseum Zoo are there for a special reason: orphaned, injured or born under professional human care, each of them could not return to the wild. Hence, they have found a forever home at the zoo.

  • Bubble Removal From Aqueous Streams Using 3M™ Liqui-Cel™ SP Series Membrane Contactors
    Bubble Removal From Aqueous Streams Using 3M™ Liqui-Cel™ SP Series Membrane Contactors

    Many manufacturing processes, analytical measurements, and other industrial processes that involve aqueous solutions are adversely affected by bubbles in the fluid stream. 3M™ Liqui-Cel™ SP Series Membrane Contactors provide a very simple, cost effective solution to help eliminate bubbles from such processes.

  • Degassing Boiler Feed Water in China with 3M™ Liqui-Cel™ Membrane Contactors
    Degassing Boiler Feed Water in China with 3M™ Liqui-Cel™ Membrane Contactors

    ShenLan Environment Inc. located in Shanghai, China uses 3M™ Liqui-Cel™ Membrane Contactors in their boiler feed water treatment systems. These systems realize lower operating costs with the added benefit of reducing the chemicals added to the boiler feed water.

  • Using ‘TransMembraneChemiSorption’ (TMCS) For Ammonia Removal From Industrial Waste Waters
    Using ‘TransMembraneChemiSorption’ (TMCS) For Ammonia Removal From Industrial Waste Waters

    Dissolved gases like NH3, H2S or NOx in waste water lead to contamination in the sewage system and high treatment costs for municipal waste water treatment plants. 

  • 3M™ Liqui-Cel™ Membrane Contactors Improve Water Quality and EDI Performance
    3M™ Liqui-Cel™ Membrane Contactors Improve Water Quality and EDI Performance

    Electrodeionization (EDI) is a widely used water treatment process. EDI technology is an electrochemical process that uses ion selective membranes and an electrical current to continuously remove ions from water. The process uses ion exchange resin to remove the ions from the feed stream, producing pure water.

  • 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.

  • Town Of Kittery, Maine Relies On Lime Feeders For pH Control For More Than 25 years
    Town Of Kittery, Maine Relies On Lime Feeders For pH Control For More Than 25 years

    The Francis L. Hatch water filtration plant is in the coastal town in York county Maine and has an average capacity of 2.6 MGD. This is a surface water plant that utilizes hydrated or “slaked” lime (calcium hydroxide) to maintain the pH level around 7.0. For over 25 years, the district has used two of the UGSI Chemical Feed model 32‐055 Feeders to mix dry hydrated lime with water to create a lime slurry solution that can then be added to the finished water treatment.

  • Filter Technology Saves Colorado Plant 50,000 GPD
    Filter Technology Saves Colorado Plant 50,000 GPD

    Combined with the installation of the new filter media and wash troughs, this particular type of underdrain and media retainer brought the water treatment plant’s operations up to speed.

  • 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.

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WASTEWATER FILTRATION PRODUCTS

New High Performance (NHP) Series Membrane Bioreactor New High Performance (NHP) Series Membrane Bioreactor

As part of Toray’s MEMBRAY MBR series, the NHP (New High Performance) module features thin membrane flat sheets that are densely packed into easily interchangeable cassettes. These cassettes allow for a higher packing density than what was originally thought possible with flat plate designs. The thin membranes are also highly flexible and allow for more movement, resulting in increased vibrations during aeration. This helps dislodge sludge and improve cleaning efficiency, all with less energy use. 

COP™ Spiral Blade Clarifier COP™ Spiral Blade Clarifier

The WesTech COP™ Spiral Blade Clarifier is the result of research and design focus on building a better clarifier. Each COP Spiral Blade Clarifier is designed for the specific process requirements of each plant.

ATP And DNA Services ATP And DNA Services

Combining LuminUltra’s 2nd Generation ATP monitoring solutions with Microbe Detectives’ advanced DNA analysis and classification service allows you to identify and analyze the entire microbiome. This provides critical answers as to why control was lost AND how to fix and prevent future problems. For drinking water and wastewater utility managers, that means mitigating risk while improving capital and operating efficiencies.

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.

Mobile Water Services: High Recovery Reverse Osmosis Technology Mobile Water Services: High Recovery Reverse Osmosis Technology

Veolia Water Technologies provides clients with mobile water solutions utilizing High Recovery Reverse Osmosis technology. With applications in water scarce areas, or where wastewater regulations restrict discharge, Veolia’s Closed Circuit Desalination (CCD™)* RO technology allows customers to recover up to 96% of the influent flow.

Trickling Filters Trickling Filters

At Brentwood, trickling filters are often referred to as the “biological treatment workhorse.” Although the technology is simple, it has been time-tested and continues to work hard to offer a cost-effective, energy efficient treatment solution today. By optimizing surface area in a given volume and maintaining the structural integrity required for deep towers, Brentwood media provides an ideal environment for microorganism growth.

ACTIFLO Process For Wet Weather And Wastewater Treatment ACTIFLO Process For Wet Weather And Wastewater Treatment

ACTIFLO® is a high rate, compact process developed by Veolia Water Technologies. The process operates with microsand which enhances floc formation and acts as a ballast to aid in rapid settlement of coagulated material.

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.

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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

A Leader In Membrane Technology A Leader In Membrane Technology

3M is dedicated to the continued development and advancement of membrane technology. We also offer our technical expertise to support our customer from initial system design through module start-up and optimization. Watch the full video to learn more about our capabilities.

About Fluence Corporation About Fluence Corporation

RWL Water and Emefcy have merged to create Fluence Corporation, bringing together breakthrough, energy-saving technologies and proven delivery platforms that optimize treatment solutions for the complete water cycle. Fluence products address all segments of the water value chain, including desalination, reuse, wastewater treatment, freshwater treatment, and waste-to-energy — making it one of the world’s most comprehensive distributed water services firms. Visit us at WEFTEC booth #7135.

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.

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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.