Methods for wastewater characterization in activated sludge modeling / 
by Henryk Melcer ... [et al.] ; Water Environment Research Foundation. 
 - Alexandria, VA :  Water Environment Federation 
 - 1 v. (various pagings) :  ill. ;  28 cm. 
 - Treatment processes and systems / Water Environment Research Foundation .
<br/><br/> '99-WWF-3.' 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>1893664716 (WERF) 1843396629 (IWAP)  RM 728.21 1572782145 (WEF) 
<br/><br/><label>LCCN: </label>2004-540526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Activated sludge process--Mathematical models.<br/>Sewage sludge--Characterization.