Successful operation is described of a storage pond used to collect treated wastewaters and runoff for recycle to manufacturing operations under conditions of drought and severe water shortages. Treated sewage and cafeteria wastes are stored in an air sparger mixed pond and are returned to the manufacturing plant to provide water for evaporative cooling and a variety of production processes. By applying long term storage, air sparger agitation, and controlled stratification during the summer, it has been possible to increase the effectiveness of limited well supplies from six to fifteen times. The efficiency of the pond depends in larger part upon biological processes that go on in the comparatively shallow areas of the system. These act to capture phosphorus and to stabilize algal organics generated in the pond itself. (Author)

"May 1973." "Project WPD-117." "Prepared for Office of Research and Monitoring, U.S. Environmental Protection Agency." Includes bibliographical references (page 49).