WesTech Municipal Water/Wastewater Blog

Municipal Water and Wastewater

Reduce Energy Costs Using Dissolved Air Flotation for Waste Activated Sludge Thickening

Posted by Michael Vanderhooft on May 21, 2018 4:22:01 PM

From 1973 to 1976, the EPA and the state of California sponsored a pilot study in Carson, California. The final technical report was completed in 1980 and is available on the EPA’s website, entitled Waste Activated Sludge Processing, document EPA-600/2-80-147.

Several technologies were tested for the handling of waste activated sludge, but the process endorsed by the report was “that dissolved air flotation be adopted for thickening of waste activated sludge.”

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Category: Wastewater Treatment

New Jersey Demonstration Project Shows Effectiveness of WWETCO FlexFilter for CSO

Posted by WesTech Engineering on Mar 27, 2018 12:09:05 PM

The WWETCO FlexFilter™ from WesTech Engineering received a huge vote of confidence this fall when the State of New Jersey released a report highly rating its performance for the satellite treatment of combined sewer overflows (CSOs).

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Category: Combined Sewer Overflow, Wastewater Treatment

Accelerated Upgrade to Anaerobic Digestion Facility Wins New Business for City of Cortland

Posted by WesTech Engineering on Dec 18, 2017 7:42:59 PM

When a large dairy expressed interest in placing a new Greek yogurt plant in an industrial park in Cortland, New York, the community improved its chance to secure the plant and provide future economic growth by upgrading the City’s wastewater treatment facility so it could offer no-cost trucked waste disposal for the dairy facility.

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Category: Wastewater Treatment

Wastewater, Algae, and the New Pathway to Resource Recovery

Posted by WesTech Engineering on Oct 26, 2017 3:36:10 PM

Once considered to be ordinary and mundane, wastewater treatment is becoming a recognized contributor to the green technology movement. It’s a rising star in the resource recovery world with the adoption of one key ingredient – algae.

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Category: Wastewater Treatment, Renewable Energy

4 Types of Operational Control Systems for Gravity Filtration – Pros and Cons

Posted by Scott Pallwitz, PE, and Darin St. Germain, PE on Dec 28, 2016 1:23:53 PM

Thousands of water and wastewater treatment facilities use granular media filters. An operational control system ­– along with media configuration, underdrain system, and backwash process – is an important consideration because it determines how water flow is controlled through the filter.

Four basic types of operational control systems are used in gravity filtration, with some variances from plant to plant. Each has advantages and disadvantages.

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Category: Wastewater Treatment, Water Treatment

Trends in the Design of Wastewater Collection and Treatment Systems

Posted by Mark Boner on Jun 1, 2016 5:55:53 PM

Q&A with Mark Boner, Creator of the FlexFilter™ Technology

Q: What trends do you see in the design and construction of wastewater collection and/or treatment systems?

A: More stringent treatment requirements are being imposed by the regulatory community. Two major issues driving these mandates include the control and treatment of wet weather flow, and nutrient removal.

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Category: Combined Sewer Overflow, Wastewater Treatment

Coming Clean with the Environment

Posted by Jon Richens on Mar 7, 2016 6:12:22 PM

Long Island is a long, slender island located directly east of Manhattan in the southern tip of New York State. In the 20th century, the north shore of Long Island earned the nickname of “Gold Coast” and attracted large private estates of the likes of the Vanderbilts, Roosevelts, Whitneys, Charles Pratt, J. P. Morgan, F. W. Woolworth, and others. The western end of the island includes Brooklyn and Queens, while the eastern tip includes the famous Hamptons.

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Category: Fixed Film and Activated Sludge, Wastewater Treatment

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