||Treatability studies of pesticide manufacturing wastewaters : atrazine /
Monnig, Edward. ;
Zweidinger, Ruth A.
||Research Triangle Inst., Research Triangle Park, NC.;Industrial Environmental Research Lab., Research Triangle Park, NC.
|| Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Sewage--Purification--Biological treatment--Research. ;
Water--Pesticide content. ;
Water pollution control ;
Nitrogen organic compounds ;
Chlorine organic compounds ;
Activated carbon ;
Chemical properties ;
Industrial waste treatment ;
Biological industrial waste treatment ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||50 pages : illustrations ; 28 cm.
The report gives results of laboratory and pilot studies of the treatability of pesticide manufacturing wastewaters, in an investigation of the suitability of individual pesticide manufacturing wastewaters for discharge to biological treatment systems, whether on site or publicly owned. Aqueous effluents from the manufacture of dinoseb and atrazine were evaluated in a hierarchical approach: the least costly treatments were evaluated first. Preliminary activated carbon filtration (to remove pesticides) followed by biological treatment (to reduce oxygen demand due to other organics) was found effective. Other treatments found inadequate were dilution with municipal wastewater and biological treatment and chemical pretreatment to hydrolyze the pesticide followed by biological treatment. Activated carbon filtration alone greatly reduced the phytotoxicity of the pesticide wastewater even though substantial breakthrough of some organic compounds occurred.
"EPA-600/2-80-077c." EPA contract no. 68-02-3688, task no. 109, program element no. 1BB610. EPA project officer: David C. Sanchez. Includes bibliographical references. Microfiche.