The Place of Land Treatment of Wastewater in Today's Society

by Herman Bouwer, (M.ASCE), Dir.; U.S. Water Conservation Lab., Agricultural Research Service, USDA, Phoenix, Arizona,
Franklin D. Dryden, (M.ASCE), Head; Tech. Services Dept., County Sanitation District of Los Angeles County, Whittier, Calif.,
William J. Bauer, (M.ASCE), Pres.; W.J. Bauer Consulting Engrs., Chicago, Ill.,

Serial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 1, Pg. 78-81

Document Type: Feature article


Land treatment of sewage can be a viable alternative to secondary and/or tertiary in-plant treatment. Depending on local conditions, overland-flow, low-rate, or high-rate systems, or a combination, may be the most suitable. High-rate systems can be operated to stimulate denitrification in the soil. Spread of renovated wastewater in aquifers can be restricted to protect high-quality groundwater supplies. Advantages of land treatment include (1)keeping wastewater out of surface water, (2)using water and nutrients of effluent for crop production, (3)producing renovated water for reuse, (4)minimum environmental and health hazards, (5)low energy requirements, and (6)favorable economics.

Subject Headings: Soil treatment | Wastewater treatment | Renovation | Surface water | Environmental issues | Sewage | Overland flow | Denitrification

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