Sludge Management - An Integrated Approach

National Science Foundation Applied Science and Research Applications Directorate Sludge Management - An Integrated Approach AVA08336VNB1 - 1994 Details research into new methods of managing sludge, the pollutants removed from wastewater, in an ecologically sound way. Since sludge is produced at the rate of thirty-five billion gallons a year at sewage treatment plants in the US, there is a lot of sludge. Produced for the government by Media Four Productions.