Covering lagoon stops odor complaints

A CASE STUDY Covering lagoon stops odor complaints. Problem: United Liquid Waste Recycling of Watertown, Wisconsin, recycles food and beverage waste into valuable byproducts such as fertilizer. Odors from the anaerobic treatment process needed to be stopped to enable the company to expand. Two lagoon anaerobic digesters needed an affordable odor control system, which had […]

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Capping semi-liquid solids with geosynthetic layers

A CASE STUDY Capping semi-liquid solids with geosynthetic layers Problem: A U.S.-based polyethylene and polyester resin/polymer producer recently closed a manufacturing facility in Wilmington, N.C. . The company hired an engineering firm to manage the demolition and removal of the expansive structures and infrastructure. Part of the environmental responsibilities was to also find a viable […]

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Upgrading Highly Loaded Waste Ponds to “Bio-Gas Banks”

A CASE STUDY By Dave Anderson Upgrading Highly Loaded Waste Ponds to “Bio-Gas Banks” Problem: Un-covered anaerobic systems can generate significant amounts of odors and renewable energy in the form of methane. The sulfides and methane are lost to the atmosphere due to lack of an impermeable barrier. If the basins were covered, the biogas […]

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Heat Loss – A Problem for Wastewater Treatment & Nitrification

A CASE STUDY By Dave Anderson Heat Loss – A Problem for Wastewater Treatment & Nitrification Problem: Operators know aerobic and anaerobic systems need sufficient water temperature to keep microbial populations active and working. Heat loss is detrimental to effluent quality and gas production. Both systems can be negatively affected from low daily and seasonal […]

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Floating Covers Reduce TSS, Improve Chlorine Disinfection

CASE STUDY By Dave Anderson Floating Covers Reduce TSS, Improve Chlorine Disinfection Problem: Algae and ultraviolet (UV) rays were adversely affecting chlorination in an upstate New York reservoir and Southern Florida WWTF. Algae was shielding embedded bacteria from chlorine, making the bacteriacide ineffective, thus requiring the chlorine dosage to be increased. Algae increased the chlorine […]

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