Decontamination of Sewage Sludges With Quicklime

Abstract

Appropriate disposal of the ever increasing amounts of sludge has become a vital problem to sewage treatment plants. This paper gives both theoretical principles to thermal and chemical inactivation of sludges and experimental data. Bacteriological and parasitological examinations of the sludge were carried out prior to, and following completion of, the inactivation process. The chemical composition of decontaminated sludges is given as well. The experiments show that sewage sludges deactivated with quicklime may be used for agricultural purposes.