||Safe disposal methods for agricultural pesticide wastes /
Hall, Charles V. ;
Baker, James ;
Dahm, Paul ;
Freiburger, Loras ;
||Iowa State Univ., Ames.;Municipal Environmental Research Lab., Cincinnati, OH.
|| Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Agricultural chemicals--Environmental aspects--United States. ;
Waste disposal in the ground--United States. ;
Pesticides--Environmental aspects--United States.
Waste disposal ;
Agricultural wastes ;
Water pollution ;
Path of pollutants ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||243 pages : illustrations ; 28 cm
A systematic evaluation of disposal systems for diluted waste pesticides was conducted at two Iowa State University experimental farms. One system, located at the Horticultural Research Station, consisted of a 30,000-liter concrete-lined pit filled with a layer of soil between two layers of gravel and equipped with a rain-activated cover. The second system, located at the Agronomy-Agricultural Engineering Center, involved two polyethylene-lined pits. In addition to investigation of these macropit disposal systems, a study was made of 56 covered, vented minipits where additions of pesticides were controlled. Evaluation of the pit disposal systems included detailed chemical sampling of the systems and their surrounding environments, identification and counts of bacterial populations, entomological studies, estimation of pesticide volatilization rates, and evaluation of pit design for efficiency, effectiveness, and convenience of operation.
"EPA-600/2-81-074." "PB81-197584"--Cover. "May 1981." Performing organization, Dept. of Horticulture, Iowa State University. Includes bibliographical references (pages 215-217). Microfiche.