Let's Consider Land Treatment, Not Land Disposal

by Ants Uiga, Research Sanitary Engr.; Constr. Engrg., Research Branch, Dept. of the Army,
David H. Howells, (F.ASCE), Dir.; Water Resources Research Inst., Raleigh, N.C.,
Alfred T. Wallace, (A.M.ASCE), Prof. of Sanitary Engrg.; Univ. of Idaho, Moscow, Idaho,

Serial Information: Civil Engineering—ASCE, 1976, Vol. 46, Issue 3, Pg. 60-62

Document Type: Feature article


The regulations that control operation and design of land treatment systems are discussed. A solution to control ground water pollution must consider all potential impacts. Pretreatment, disinfection, and the limiting design parameter control the impacts to ground water or surface waters. The limiting parameter for potable ground water is typically the drinking water standard for nitrogen. A more stringent requirement for nitrogen control will be necessary for direct or reasonably direct discharge to nitrogen limited surface waters, usually estuaries. Hydraulic constraints may occur if product water objectives are not limiting. An economic analysis will allow comparison between alternatives that meet all environmental constraints. Land treatment offers an economically favorable alternative which can replace existing treatment and disposal in many areas.

Subject Headings: Soil treatment | Groundwater pollution | Nitrogen | Parameters (statistics) | Surface water | Economic factors | Water treatment | Drinking water

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