WASTEWATER FILTRATION WHITE PAPERS AND CASE STUDIES

New Membrane Technology Handles High Solids, Aids Water Reuse

As global conditions place more stress on water resources, a great deal of attention is being paid to water reuse technologies, particularly those that facilitate the reuse of the next level of difficult-to-treat or highly variable raw water sources.

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.

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WASTEWATER FILTRATION PRODUCTS

OptiFiber<sup>®</sup> PES-14 Microfiber Cloth

OptiFiber® PES-14 Microfiber Cloth

OptiFiber PES-14® Microfiber cloth filtration media is engineered to remove suspended solids, turbidity and fine particles up to 50% better than other filters or microscreens. Microfiber cloth media is proven to reduce total phosphorus to 0.1 mg/l or less.

Solids CONTACT CLARIFIER&trade;

Solids CONTACT CLARIFIER™

The WesTech Solids CONTACT CLARIFIER™ has the ability to act as both an enhanced flocculation device as well as a high rate chemical precipitator. Mixing, internal solids recirculation, gentle flocculation and gravity sedimentation are all combined into a single unit.
WWETCO FlexFilter&trade;

WWETCO FlexFilter™

The WWETCO FlexFilter™ from WesTech uses compressible media to provide an efficient new solution for CSO, Primary Treatment, Tertiary Treatment and Industrial Water Pretreatment. The FlexFilter™ is a simple gravity system with a robust design requiring no moving parts. The combination of tapered media compression, porosity gradient within the media bed and a low flow backwash system make the WWETCO FlexFilter™ one of the most versatile and efficient filters on the market.

Gravisand® Traveling Bridge Filter

Gravisand® Traveling Bridge Filter

Gravisand® filtration technology incorporates the principles and advantages of conventional traveling bridge designs but uses improved methods of accomplishing and maintaining filtration and regeneration. Gravisand® filtration systems are a favorite among wastewater treatment plant operators because of their exceptionally low life-cycle costs and their legendary effectiveness in wastewater applications.  Ideal for use with suspended growth systems, attached growth systems and for phosphorus removal, water reclamation and algae removal with the appropriate. 

Hydrotech Discfilter

Hydrotech Discfilter

Kruger, a Veolia Water Technologies company, provides the Hydrotech Discfilter for today’s demanding tertiary filtration and water reuse applications.

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.

DuoSphere&trade; 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.

Filtration Technologies

Filtration Technologies

From state-of-the-art arsenic removal and wastewater treatment equipment to water filtration, wastewater filtration and water evaporative solutions, from reverse osmosis to nanofiltration, Severn Trent Services has the technology to meet your filtration needs

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WASTEWATER FILTRATION PODCASTS

Clearing The Air With Activated Carbon

Clearing The Air With Activated Carbon

Think you know activated carbon? The range of capabilities is so robust that operators of all types — drinking water, wastewater, municipal, or industrial — should come to fully understand its usage.

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.

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WASTEWATER FILTRATION VIDEO

Municipal Grinder

Municipal Grinder

Our Municipal Monster grinders can shred through some of the toughest garbage found in the waste stream. Avoid clogged pumps and attack municipal waste head on with these Monster grinders.

Oxelia: An Ozone-Enhanced Biologically Active Filtration System

Oxelia: An Ozone-Enhanced Biologically Active Filtration System

Xylem’s Leopold Oxelia is designed for municipal wastewater treatment. The ozone-enhanced biologically active filtration system and multi-barrier solution combines ozone, filtration and analytical instrumentation to deliver optimal wastewater treatment for water reuse and discharge into sensitive waters.

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.

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WASTEWATER FILTRATION NEWS

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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.