Activated sludge process design and control :  theory and practice / 
ed. by W. Wesley Eckenfelder, Petr Grau 
 - 2nd ed. 
 - 334 páginas 
 - Water quality management library ;  v. 1 .
<br/><br/><label>ISBN: </label>1566766435 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aguas residuales
<br/><br/><label>LC Class. No.: </label>TD768  / A37 1998