39 Articles found
DO2E Waste Water Treatment LLC Articles
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City uses digesters to rid lift stations of hydrogen sulfide – Case Study
Problem The city of Taylorville (Illinois) Street/Sewer Department faced issues with hydrogen sulfide in three lift stations and with biofilms further downstream in the delivery piping to the wastewater treatment plant. The discharge manhole H2S ...
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Aerators and mixers enable cost savings, reduce biosolids buildup - Case Study
Problem The town of Monroeville, Ala., faced aeration and mixing issues, sludge buildup in one of its wastewater lagoons, and power bills of S12,500 per month after a major employer relocated its garment manufacturing facility. The company had ...
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Mixing it up
Discharge from a textile plant in Monrocvillc. Ala., paid 90 percent of operating costs for the Hudson Branch Wastewater Treatment Plant. The 2 mgd (design) activated sludge extended aeration facility ran two 12^ lip propeller-type aerators la its ...
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Removal of fats, oils, & grease (F.O.G.) from grease traps and lift stations by means of advanced oxidation processing (A.O.P.) using the
Scenario: F.O.G. (Fats, Oils & Grease) deposits in both grease traps and lift stations accumulate within a short period of time. Their removal requires high-pressure Vac-Trucks and hazardous chemicals to break down and remove the unwanted ...
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Removal Of H2S using DO2E digesters Taylorville, Illinois - Case Study
A constant problem in many wastewater collection systems is the formation of hydrogen sulfide (H2S) in the lift stations as well as from biofilms further downstream in the delivery piping to the wastewater treatment plant. The DO2E representatives ...
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City uses digesters to rid lift stations of hydrogen sulfide - Case Study
Problem The city of Taylorville (Illinois) Street/Sewer Department faced issues with hydrogen sulfide in three lift stations and with biofilms further downstream in the delivery piping to the wastewater treatment plant. The discharge manhole H2S ...
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Use of DO2E aerator technology for various remediations in industrial, environmental, and municipal applications
Abstract: An introduction to this DO2E technology cover s a var iety of appl i cat ions inc luding environmental remediations, polishing ponds for municipal and industrial sites, and internal usage of this technology in municipal wastewater ...
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F.O.G. / Fats oil & grease & H2S removal- a simple solution to a major problem - Case Study
Problem: Meridian Mississippi; 14 mile force main with 3 – 12 ft. diameter pump stations. Each station had heavy grease and rag mats 2 to 3 feet thick with H2S readings over 900 ppm. Solution: At the advice of consultant Jim White, Mr. Hugh ...
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Bar screen effectively prevents pumps from clogging - Case Study
Problem New Jersey’s Lower Township Municipal Utilities Authority operates a 5 mgd wastewater treatment plant. Influent arrives through a 48-inch pipe 23 feet below grade. The manual inflow pump screening setup was difficult and hazardous to ...
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Pump and mixer team to treat wastewater - Case Study
Problem Serving 11,000 residents, the Stafford (Conn.) Water Pollution Control Facility needed an upgrade. Solution To improve maintenance and equipment service life, plant personnel installed six 1.8 hp Landia mixers in the anoxic tanks as part ...
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Aerators and mixers enable cost savings, reduce biosolids buildup - Case Study
Problem The town of Monroeville, Ala., faced aeration and mixing issues, sludge buildup in one of its wastewater lagoons, and power bills of $12,500 per month after a major employer relocated its garment manufacturing facility. The company had ...
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Reactor assists in cold-weather lagoon ammonia removal - Case Study
Problem The three-cell lagoon system at the City of DeSoto, Iowa, consistently met its permit until new effluent limits on ammonia required an upgrade. The city needed to nitrify efficiently in winter without the prohibitive expense and disruption ...
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Aerator retrofit enables city to meet nitrogen limits - Case Study
Problem The City of Ocala, Fla., faced tighter effluent nitrogen limits due to the presence of springs in the St. John’s River basin. The city operates an Ovivo Carrousel plant. Solution Rather than add basins, the city retrofitted the ...
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Screening system enables plant to increase treatment capacity - Case Study
Problem The activated sludge wastewater treatment plant in Kiel, Wis., treats high-strength wastewater from cheese production. When dissolved oxygen in the aeration basins dropped too low, the cheese waste influent was turned down or shut off. ...
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Plant upgrades to cloth media filter system - Case Study
Problem A coastal development in eastern North Carolina had aging traveling bridge sand filters that were failing and required extensive mechanical maintenance. The plant was also upgrading from chlorination to UV disinfection, which required ...
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Filter helps city meet phosphorus limits - Case Study
Problem The operators at the Lakes Area Sewer Authority treatment plant in Cass County, Mich., sought an efficient filtration system to meet stringent summer phosphorus limits. The city wanted a high-rate filtration system with a small footprint to ...
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High-speed blower unit used to upgrade old equipment - Case Study
Problem The 3.3 mgd (average) activated sludge Charleston (Ill.) Wastewater Treatment Plant needed upgrades to old equipment to reduce operating costs. That included replacing Hoffman multistage aeration blowers, which had served for 40 years with ...
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Membrane retrofit maintains safe drinking water production - Case Study
Problem The ultrafiltration (UF) membrane cartridges used in the City of Del Rio (Texas) Water Treatment Plant needed frequent fiber repairs and had reached the end of their useful life. However, replacement using the existing specified membranes ...
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Turbo blowers provide aeration for holding basins - Case Study
Problem The Frank E. VanLare Wastewater Treatment Facility in Rochester, N.Y., required an efficient aeration solution for its six holding basins. Solution Ten model NX350-C080 blowers from APG-Neuros were purchased by the county and commissioned ...
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Product description of the DO2E aerator / mixer
DO2E Aerator / Mixers are high-efficiency all welded, heavy-duty PVC devices that are unique in several ways. DO2E’s patented products are designed to pull water from significant depths for aeration and mixing. By operating with ...