TY - BOOK AU - Daigger,Glen T. AU - Buttz,John A. TI - Upgrading wastewater treatment plants T2 - Water quality management library SN - 1566766443 AV - TD746 .D35 1998 PY - 1998///] CY - Lancaster, Pa. PB - Technomic Pub. Company KW - Sewage disposal plants KW - Upgrading N1 - Includes bibliographical references and index ER -