TY - BOOK ED - Centre for Environmental Research Information. ED - Risk Reduction Engineering Laboratory. TI - Environmental regulations and technology : : Autothermal Thermophil ic Aerobic digestion of Municipal wastewater sludge / U1 - 363.7 22 PY - 1990/// CY - Cincinnati, Ohio : PB - Centre for Environmental Research Information, KW - Sewage sludge digestion KW - Aerated packager treatment systems N1 - Includes bibliographical references ER -