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Published bySharyl Barker Modified over 9 years ago
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Small Community Wastewater Alternatives Section V Advanced Treatment
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Advanced Treatment Process House sewer conveys sewage to aerobic treatment unit Aerobic treatment unit treats the sewage similar to a sewer plant (secondary treatment) Effluent pipe conveys treated effluent to absorption area Absorption area now serves primarily as a dispersal area for treated effluent Courtesy of OTN
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Most Advanced Treatment Technologies Produce “Secondary” or Better Quality Effluent!
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Advanced Treatment Pre-treatment of wastewater –Usually requires dosing –Often requires electric –Always requires maintenance Applicable to: –Difficult sites –Sensitive environments
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May be required by design or to “lift” wastewater to the absorption area Delivers a calculated “dose” of wastewater Allows for rest periods, promotes aerated and unsaturated soil conditions Extends system life Dosing Options
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Advanced Treatment Aerobic Treatment Units (ATU) Media Filters: –sand –textile –peat –foam Nutrient Reduction
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Advanced Treatment Difficult Sites
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Courtesy of Skaneateles Lake Demonstration Project
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NSF Aerobic Treatment Unit (ATU)
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Peat Filter Courtesy of OTN
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Peat Filter Courtesy of OTN
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Combination Peat / Textile Courtesy of OTN
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AdvanTex Packed Bed Filter
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AdvanTex Courtesy of OTN
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Textile Sheets Courtesy of Orenco
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20x more surface area than sand GravelSand Courtesy of Orenco
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Residential Installation Courtesy of OTN
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Courtesy of Skaneateles Lake Demonstration Project
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Media Filter with Bottomless Sand Filter Courtesy of OTN
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Media Filter with Bottomless Sand Filter Courtesy of OTN
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Foam Courtesy of OTN
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The more advanced the treatment technology, the greater attention required to assure proper performance.
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