Biologic Detection and Control of Water Pollution.

摘要

The aquatic systems studied in this project included (1) a well defined basin forming a part of Lake Hartwell, (2) a well defined basin forming part of Lake Keowee, (3) a non-polluted natural stream,three artificial ponds,and six artificial streams at the Thermal Effects Laboratory of the Savannah River Project,Aiken,South Carolina,and (4) a laboratory system consisting of various combinations of 11gal capacity polyethylene tanks connected by siphon tubes to form multitank batteries. In each system,natural bacterial populations were determined at monthly intervals (minimum) in terms of total plate counts,nutritional types,proportion of chromagenic bacteria in the total population,and number of bacterial colony types. For all except the laboratory systems,the above determinations were made for a period of from one to two years and the data were analyzed on a seasonal basis. Dissolved oxygen and ambient temperatures were determined in each system. In the laboratory system,the effects of three different herbicides,and the effects of thermal loading on the natural bacterial populations were studied.