Natural Treatment and Onsite Processes (original) (raw)

Dennis Truax

2014, Water Environment Research

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6 pages

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Natural treatment systems for wastewater can be divided into two broad categories: soil-based systems, which include subsurface infiltration, rapid infiltration/soil aquifer treatment, overland flow, and slow rate systems; and aquatic systems, which include pond, floating aquatic plant, and constructed wetland systems. Many, but not all, on-site wastewater treatment systems are natural systems using septic tanks as a pretreatment.