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  • Aerators Enhance Aerobic Digester Process
    floating brush rotor aerators for about 15 years. The company's aerators are in use in approximately 300 installations in the U.S. Most of these applications are aerated lagoons and oxidation ditches for municipal and industrial wastewaters, but the aerators have also been used effectively in aerobic
  • Improved Wastewater Treatment at Hess Collection Winery
    is capable of producing an effluent that is suitable for spray irrigation of vineyards, woodland, or other suitable land. Some wineries have leachfields, which are biological systems in that they rely on microbial treatment within a soil column. Leach fields placed below the upper aerobic soil layer
  • Wastewater Level Measurement Techniques
    . 36.4 LEVEL INSTRUMENT TECHNOLOGIES USED IN WASTEWATER TREATMENT. 36.41 Ultrasonic Level. Common Level Applications. - Pump Control in wet wells and sumps. - Chemical storage tank inventory. - Aeration basin level. - Aerobic Digester level. - Chlorine contact tank level. - Sludge tank level
  • Waste Water Treatment
    to the Secondary Treatment phase. Secondary Treatment is used to lower the organic load of soluted organic compounds, either in an aerobic (aerated) or anaerobic (oxygen-free) condition. Organic load is normally measured by BOD (Biochemical Oxygen Demand) or TOC (Total Organic Carbon
  • PTMD Scrubber Improves Odor Control at Vancouver Island Wastewater Treatment Plant
    The French Creek Pollution Control Centre treats wastewater from the City of Parksville and the Town of Qualicum Beach on Vancouver Island in British Columbia. Originally, the plant used the extended aeration process with aerobic sludge digestion for wastewater treatment. From 1995 to 1997
  • Application of pre-acidification
    reduction in dairy wastewaters and sewage using acidogenic treatment. This indicated the use of a pre-acidification stage for solids reduction before conventional biological treatment. Conventional systems Both anaerobic and aerobic systems are used to treat wastewater from the pulp and paper industry
  • Advanced Oxidation Ditch Performance (.pdf)
    settling. If the ditch is very underloaded, it may be necessary to turn off the aerators periodically to reduce DO levels; otherwise, too much DO is carried into the anoxic zone. In some oxidation ditches, wastewater influent enters the front end of the aerobic zone (Figure 2). The length
  • Effect of Increased Flow Rate on the Microbial Population in the Waterloo Biofilter
    , it is called heterotrophic (Tchobanoglous & Schroeder, 1985, pg.126). The BOD removers in fixed film Biological Nutrient Removal systems, such as the Waterloo Biofilter (R), are heterotrophic (Farmingdale, 1997, pg.8). The heterotrophic aerobic bacteria in the Biofilter utilize oxygen, organic

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