TY - BOOK AU - Melcer,Henryk ED - Water Environment Federation. ED - International Water Association TI - Methods for wastewater characterization in activated sludge modeling T2 - Treatment processes and systems / Water Environment Research Foundation SN - 1893664716 (WERF) CY - Alexandria, VA PB - Water Environment Federation KW - Sewage KW - Purification KW - Activated sludge process KW - Mathematical models KW - Sewage sludge KW - Characterization N1 - '99-WWF-3.'; Includes bibliographical references ER -