Papers and Reports

Widespread interest in composting as a means of municipal sludge treatment began in the early 1970s, and has increased dramatically since that time. In 1984, the U.S. Environmental Protection Agency (EPA) initiated a technology evaluation of municipal sludge composting based on investigations at five operating facilities.1 The facilities studied generally processed sludge reliably and effectively; however, this paper presents key problems experienced and their resolutions. Varied features of the composting technologies are also compared.