WASTEWATER FILTRATION WHITE PAPERS AND CASE STUDIES

Activating The Sludge In Small Municipal Facultative Waste Lagoon Systems

Wastewater treatment lagoons were originally facultative in design — shallow, single and multi-cell lagoon systems that counted on wind, sunlight, anaerobic bacteria, and time for the digestion of the organic components of the wastewater.

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

ClearLogic&reg; Membrane Bioreactor

ClearLogic® Membrane Bioreactor

The ClearLogic membrane bioreactor (MBR) provides peace of mind to its owners through WesTech’s 40+ years of designing reliable and practical wastewater treatment solutions. Customers choose WesTech for superior service and the ability to provide complete systems that can include all instrumentation and control systems, as well as headworks and tankage.

FiberFlex Flexible Ultrafiltration Rack

FiberFlex Flexible Ultrafiltration Rack

Want to shift the process of changing module suppliers from complicated and time-consuming to easily-managed and economical?

Leopold Universal Type S® Underdrain by Xylem

Leopold Universal Type S® Underdrain by Xylem

Leopold Type S technology underdrain is designed to provide uniform distribution of wash water and air to clean every corner of the filter without media upset.

Packaged Wastewater Treatment Plant

Packaged Wastewater Treatment Plant

The Packaged Plant Treatment System is a type of biological treatment for domestic waste using the extended aeration process. Packaged Plants are compact, self-contained, and factory prefabricated.

BioBarrier® Membrane BioReactor (MBR) & HSMBR

BioBarrier® Membrane BioReactor (MBR) & HSMBR

Bio-Microbics introduces a new generation of wastewater treatment solutions, the BioBarrier® HSMBR® (High Strength Membrane Bioreactor), to help meet the increasingly stringent needs of specialized applications. The membranes and processes used in this advanced system act as an impenetrable physical barrier for nearly all common pollutants found in wastewater today. The advanced technology offers the highest quality effluent possible on the market.  The BioBarrier® MBR was the first system to be approved for water reuse (NSF/ANSI Std 350, class R) by the NSF (National Sanitation Foundation) International.

Aqua MiniDisk Cloth Media Filtration System

Aqua MiniDisk Cloth Media Filtration System

This filter is designed to provide economical treatment of smaller flows with the added advantage of retrofitting existing traveling bridge sand filters.

Pressure Filters

Pressure Filters

WesTech granular activated carbon (GAC) contactors are an effective means for removal of low-molecular-weight contaminants from aqueous solutions.

OPUS&reg; Technology - Optimized Pretreatment and Unique Separation Technology

OPUS® Technology - Optimized Pretreatment and Unique Separation Technology

OPUS technology combines a proprietary high rate chemical softening process, MULTIFLO, with filtration, ion exchange, and reverse osmosis operated at an elevated pH in single-pass or double-pass mode to generate high effluent water quality suitable for discharge, recycle or reuse.
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WASTEWATER FILTRATION PODCASTS

Carbon Company Highlights Ion Exchange

Carbon Company Highlights Ion Exchange

Activated carbon and ion exchange can be called two sides of the same coin. Where activated carbon purifies water by removing organic contaminants through an adsorption process, ion exchange removes contaminants under the surface via electrical charge.

Introducing The Ultimate In Ultrafiltration

Introducing The Ultimate In Ultrafiltration

Evoqua Water Technologies spoke to Water Online Radio about its ambitions to become synonymous with ultrafiltration and the two innovations that may do just that.

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.

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WASTEWATER FILTRATION VIDEO

Largest Compressible Media Filter In The World Implemented

Largest Compressible Media Filter In The World Implemented

When the Springfield, OH, plant was presented with the mandate to meet stricter guidelines for the control and treatment of combined sewer overflows, it started down a road that would eventually lead it to the largest compressed media filter installation in the world.

Grundfos Partners With Hytec Water System To Save Time And Money

Grundfos Partners With Hytec Water System To Save Time And Money

The Hytec Water System is designed to solve water management problems in high rise condominium and commercial buildings. This video shows how a feed pump system by Grundfos helps Hytec deliver a better package to their customer. The project featured in this video is a large complex in Vancouver that services over 450 residential units in addition to commercial units such a grocery store and coffee giant. Automation and the accuracy of the Grundfos pump system saves time and money.

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.

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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.