WASTEWATER FILTRATION WHITE PAPERS AND CASE STUDIES

Pilot Studies In North Carolina With Hydrex™ Odor Solutions

Two municipalities were faced with odor issues and required corrosion prevention in their collection systems. Monitoring in the sewer lines indicated peak H2S atmospheric concentrations of 300-500 ppm. Both clients desired H2S < 20 mg/L to prevent corrosion and preferably lower to prevent H2S odor.

  • Trinity River Authority Increases Filtration Capacity And Decreases Backwash With AquaDiamond&reg; Cloth Media Filters By Aqua-Aerobic Systems
    Trinity River Authority Increases Filtration Capacity And Decreases Backwash With AquaDiamond® Cloth Media Filters By Aqua-Aerobic Systems

    The Trinity River Authority (TRA) of Texas established its Central Regional Wastewater System (CRWS) in 1957 and began operations in December 1959.

  • Paper Facility Increases Efficiency With Filter Rehabilitation
    Paper Facility Increases Efficiency With Filter Rehabilitation

    NewPage operates eight paper mills in the United States. The Biron mill located in Wisconsin Rapids, Wisconsin produces approximately 370,000 tons of paper each year.

  • Bubble Removal From Aqueous Streams Using SuperPhobic&reg; Membrane Contactors
    Bubble Removal From Aqueous Streams Using SuperPhobic® Membrane Contactors

    Many manufacturing processes, analytical measurements, and other industrial processes and procedures that involve aqueous based solutions, are adversely affected by bubbles in the fluid stream.

  • 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. 

  • Using Membrane Contactor Technology To Extend Resin Bed Life
    Using Membrane Contactor Technology To Extend Resin Bed Life

    In today’s economic environment when profits are reduced due to rising costs, it is necessary to find ways to save time and money.

  • Clarification System Boosts Capacity, Reduces Maintenance
    Clarification System Boosts Capacity, Reduces Maintenance

    Spikes in peak demand at the 3.0 MGD Freedom District Water Treatment Plant in Carroll County, MD, exceeded 70 percent of the plant’s capacity, and the existing clarifier made for a lengthy sludge-removal process. After staff installed a dissolved air flotation (DAF) pretreatment system to improve the efficiency of the membrane filters, the now 4.0 MGD facility has reduced maintenance for operators. The system also safeguards against pathogens that can pass through traditional sand/diatomaceous (S/D) filters.

  • NEOSEP® Membrane Bioreactor System Simplifies 'Fundamental Necessities' Of MBR
    NEOSEP® Membrane Bioreactor System Simplifies 'Fundamental Necessities' Of MBR

    The NEOSEP® MBR system features Kruger’s uniquely designed K-120C and K-240C flat sheet membrane modules.  The modules offer several innovative design features that enhance ease of installation, operation and maintenance.  This includes an integrated central lifting eye, offering an incredibly well balanced module that makes installation and retrieval a simple and stress-free process.

  • Flat-Sheet Membrane Units Increase WWTP Capacity
    Flat-Sheet Membrane Units Increase WWTP Capacity

    Following several years of inadequate performance and intensive cleaning requirements, the owners of the Callao, VA, wastewater treatment plant looked for a solution. The installation of two flexible, flat-sheet membrane units provided an instant capacity increase and a decrease in sludge accumulation, resulting in streamlined plant operations.

  • Do We Have To Sacrifice Performance To Be Green?
    Do We Have To Sacrifice Performance To Be Green?

    The global use of membranes is widespread in municipal, industrial, and wastewater applications with reverse osmosis (RO) proving to be a highly effective and reliable method of advanced water treatment.  Reuse applications have been particularly challenging for water treatment chemical companies as these highly variable feedwaters can contain any imaginable constituent, resulting in a wide array of site specific foulants. By Karen Lindsey, V.P. Operations, Avista Technologies, Inc.

  • Understanding The PeriFilter Technology

    There is a newly-developed technology, the so-called PeriFilter® that will hit the market within the next few weeks. This offers many heretofore technological and economic advantages in the separation of solid phases from liquid phases with concomitant transformation of the solid phases into processable forms for further usage and/or products.  It may be used in the separation of solids from liquids in water purification and in wastewater treatment applications as well.

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.

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WASTEWATER FILTRATION PRODUCTS

Leopold® Tertiary Filter Systems by Xylem

Leopold® Tertiary Filter Systems by Xylem

Leopold filter systems are a powerful and reliable solution for municipal wastewater treatment. A Leopold filter is planned based on particular upstream conditions.

Leopold® Clari-Vac® Floating Sludge Collector by Xylem

Leopold® Clari-Vac® Floating Sludge Collector by Xylem

Sludge removal for Water and Wastewater Treatment.

Compact Wastewater Treatment System

Compact Wastewater Treatment System

The world’s MBBR/IFAS technology experts at Headworks BIO have developed a smarter way to treat wastewater for reuse. The result is the Headworks Integrated Treatment (HIT™) System: a modular, compact wastewater treatment system designed for smaller communities and industries.

Discfilter Filtration System

Discfilter Filtration System

Discfilters are an ideal filtration system for tertiary filtration and wastewater reuse. By employing woven cloth filter elements installed vertically on multiple discs, the Discfilter supplies a large filter area within a small footprint that is up to 75% smaller than a traditional sand or multimedia filter which means a lower total installed cost.
Arkal Spin Klin Disc Filtration

Arkal Spin Klin Disc Filtration

Arkal Spin Klin Disc Filtration systems – now part of the Amiad family of technologies – delivers reliable, accurate and efficient water filtration for years, along with worldwide support.
Filtration And Separation Solutions

Filtration And Separation Solutions

Veolia Water Technologies combines innovative technology with industry experience to provide economical and effective operation of filtration and water treatment applications.

CeraQ™ Ceramic Filters For Water And Wastewater Treatment

CeraQ™ Ceramic Filters For Water And Wastewater Treatment

QUA’s CeraQ ceramic membrane modules are designed for challenging water and wastewater applications. These filters are ideal for wastewater recycle or reuse applications in a wide range of industries such as upstream oil and gas, petrochemicals, refinery, food beverage, and textiles. A variety of different pore sizes provides great flexibility to users in designing treatment system for applications covering the filtration spectrum of micro- to ultrafiltration.

Omni-SORB™ Filter Media

Omni-SORB™ Filter Media

The Omni-SORB™ granular filter media from Severn Trent Services was specifically designed to provide removal of iron and manganese compounds from water and wastewater supplies
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WASTEWATER FILTRATION PODCASTS

What’s In An Underdrain? More Than You Might Think

What’s In An Underdrain? More Than You Might Think

Media filtration is employed for a variety of treatment applications — drinking water, wastewater recycle/reuse, and pretreatment for desalination among them — but practitioners may be missing out on a key opportunity for savings.

Changing Water Conditions Dictate ‘A Shift That Is Here To Stay’

Changing Water Conditions Dictate ‘A Shift That Is Here To Stay’

When it comes to potable water, the biggest problem is that there isn’t enough available — at least not in the drought-ridden Western states of the U.S.

Eliminate Filter Maintenance Costs Once And For All

Eliminate Filter Maintenance Costs Once And For All

Polly Stenberg, Director of Sales with Forsta Filters, explains how self-cleaning filters significantly cut costs and reduce maintenance for industrial, municipal, and irrigation applications.

What’s New In Filtration?

What’s New In Filtration?

John Dyson, Americas Sales Director for Severn Trent Services, discusses a new design in filter underdrains and nitrate removal using ion-exchange resins that facilitates brine reuse.

Looking Towards The Future Of Wastewater

Looking Towards The Future Of Wastewater

Jim Jackson, National Sales Manager for Mazzei Injector Company, discusses future trends for wastewater: direct potable reuse, ozone gas, ultra-filtration membranes, and one cutting-edge treatment plant that is now utilizing "designer" or custom-made recycled water with environmental benefits.

Cloth Media Filtration, Ultrafiltration And SCADA-Controlled Filtration

Cloth Media Filtration, Ultrafiltration And SCADA-Controlled Filtration

Dave Holland, Senior Application Engineer at Aqua-Aerobic Systems, discusses how various filtration technologies in the company’s product portfolio address important current and future needs for end users.

More Wastewater Filtration Podcasts
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WASTEWATER FILTRATION VIDEO

Leopold® FilterWorx® Overview

Leopold® FilterWorx® Overview

FilterWorx® is a complete water filtration system engineered to improve efficiency and reliability. Ideally suited for applications such as potable drinking water treatment, tertiary wastewater treatment, nutrient removal in water or wastewater, pretreatment prior to low-pressure membrane systems, and RO membrane desalination pretreatment, FilterWorx performance filters feature a flat-bottom flume, fiberglass backwash water troughs, engineered media, three types of underdrains, and media retainers in two different sizes. In addition, FilterWorx control systems provide the longest filtration run cycles to reduce energy consumption and wastewater generation, thereby lowering operating costs.

Johnson Screens® TRITON™ Underdrains Product Video

Johnson Screens® TRITON™ Underdrains Product Video

This video features an inside look at how TRITON™ Underdrain Systems benefit operators, contractors, and consulting engineers alike. Watch the animated product showcase to find out details about simple installation, savings in filter height and volume during filtration, and how the backwash cycles enable reduced water consumption and lower power costs.

AquaDisk Cloth Media Filter Featuring OptiFiber Cloth Media

AquaDisk Cloth Media Filter Featuring OptiFiber Cloth Media

Aqua-Aerobic Systems’ OptiFiber PES-14 Microfiber is especially engineered to remove suspended solids, turbidity and fine particles up to 50% better than other filters or microscreen media. OptiFiber PES-14 Microfiber cloth media is ideal for fine polishing applications, and is proven to reduce total phosphorus to 0.1 mg/l or less. The ability to maintain high filtrate quality provides assurance for meeting even the most stringent effluent requirements.

MBR Myths by Ovivo

MBR Myths by Ovivo

In this video, Ovivo, which recently was awarded a contract to supply equipment for the largest MBR system in North America at 42 MGD, looks at the common objections associated with MBR Plants. With over 130 operating plants in the US and 330 plants worldwide, Ovivo provides answers.

Kruger K240C Module Installation

Kruger K240C Module Installation

This video demonstrates ease of installation of a Kruger K240C Module, including single-point lifting of an entire double stack and guidance built into module legs that allows it to slide easily onto tank rails.

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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.