Accession Number : ADA019586

Title :   Selected Chemical Characteristics of Soils, Forages, and Drainage Water from the Sewage Farm Serving Melbourne, Australia.

Descriptive Note : Final rept.,

Corporate Author : CORPS OF ENGINEERS WASHINGTON D C

Personal Author(s) : Johnson,Richard D. ; Hinesly,Thomas D. ; David,D. J.

Report Date : JAN 1974

Pagination or Media Count : 58

Abstract : Planning and engineering personnel from the Army Corps of Engineers and faculty from the School of Agriculture, University of Illinois visited the wastewater land treatment system serving metropolitan Melbourne, Australia. Flow averages 144 million gallons per day, majority of this flow is given primary treatment (lagooning) prior to land application. Wastewater that does not percolate through the ground or is lost by evapotranspiration flow into ditches that discharge to the ocean. Irrigation of pastures with raw sewage (annual rate of 44 in. per yr.) has resulted in increased soil contents of nitrogen, organic carbon, phosphorous and trace elements. Sewage irrigation of pasture land has resulted in increased or unchanged forage contents of all the chemical elements determined except manganese. Drainage effluents contain less nitrogen and phosphorous but approximately the same heavy metal concentration as the effluent from conventional secondary sewage treatment plants. In terms of animal health there are no indications that forage from irrigated sites contain trace elements in either excessive or dificient amounts.

Descriptors :   *Sewage treatment, *Soils, *Irrigation systems, Concentration(Chemistry), Waste water, Land use, Urban areas, Water flow, Evapotranspiration, Ponds, Drainage, Physical properties, Nitrogen, Percolation, Carbon, Phosphorus, Trace elements, Livestock, Grasses, Australia

Subject Categories : Agricultural Engineering
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE