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Videos

Acid Mine Drainage Treatment Case Study

Turn-key program reduced chemical expenses, solids , and energy costs.

A Northeast Acid Mine Drainage (AMD) treatment facility was using calcium hydroxide (lime) to precipitate iron from the mine pool water. The iron in the water stream is in soluble form known as ferrous iron (Fe2). Lime was used to...
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Advanced Oxidation for High Strength Caustic Wastewater

A refinery in the Northeast was looking at options to dispose of 10,000 bbls of a high strength, high pH caustic wastewater that had been stored in one of its tanks.  The wastewater had very high phenol levels (14,000 mg/L), which did not allow for processing through the activated sludge...
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Anaerobic Digester Hydrogen Sulfide Removal at the Manatee County, FL Southwest Water Reclamation Facility

ABSTRACT

The results of a full-scale trial initiated in May 2006 by the Manatee County Southwest Water Reclamation Facility are presented, and the impacts of peroxide regeneration of spent iron salts on the removal of hydrogen sulfide (H2S) from anaerobic digesters at the SWWRF are examined. Treatment with hydrogen peroxide...
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Bio-Solids Process Enhancements Resulting From the Use of Hydrogen Peroxide for Hydrogen Sulfide Odor Control – The San Antonio Experience

ABSTRACT

The paper will present results of a trial initiated in February 2004 by the San Antonio Water System (SAWS) to quantify the impacts of hydrogen peroxide injection prior to dissolved air flotation thickening of wastewater sludges. Since February 2000, the San Antonio Water System has successfully used iron salts...
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Biosolids Odor Control at Holding Tank and Belt Filter Presses via Hydrogen Peroxide

Project Scope

A Midwest wastewater treatment plant was struggling with problematic hydrogen sulfide (H2S) levels at two points within their facility arising from biosolids processing. The factors driving the need for H2S control included worker safety, corrosion of electronics and concrete, implied regulatory limits and biosolids odor control. Along with...
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Biosolids Odor Control via Peroxide Regenerated Iron –PRI-TECH® Technology

Project Scope

A field demonstration was initiated in February 2014 by the Suffolk County Department of Public Works (SCDPW) to quantify the impacts of Peroxide Regenerated Iron-Technology (PRI-TECH®) as a more economic approach in maintaining biosolids odor control in the solids handling phase at the Bergen Point Wastewater Treatment Plant...
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Biosolids Odor Control via Sodium Chlorite and Calcium Nitrate

Project Scope

In upstate New York, a wastewater treatment facility historically utilized potassium permanganate to control odors at two locations in their biosolids processing operations. The first location was into the waste activated sludge (WAS) fed to a gravity belt thickener. The second location was into a mixed stream of...
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Case Study – Fargo, North Dakota: Hydrogen Peroxide for Regeneration of Ferrous Chloride, an Innovative Approach to Hydrogen Sulfide Control

ABSTRACT

Historically, ferrous chloride (FeCl2) injection has been utilized to successfully control odors and corrosion within the sanitary sewer collection system of Fargo, North Dakota. However, increased odor complaints prompted an evaluation of the odor conditions present in the sanitary sewer system. Study results indicated that the current FeCl2...
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City of Wichita, Kansas’ Odor Control Program – Continuing Optimization with a Cost-Conscious Approach

ABSTRACT

This paper describes the evolving odor control program of the City of Wichita, Kansas from 2008 to 2015. In 2010, the City reduced odor control technology expenditure due to a reduction of revenues. The odors increased resulting in an upswing in citizen complaints as well as more corrosion...
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