Biological nutrient removal (BNR) operation in wastewater treatment plants :  WEF manual of practice no. 29; ASCE/EWRI manuals and reports on engineering practice no. 109/ 
prepared by the Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants Task Force of the Water Environment Federation and the  American Society of Civil Engineers/Environmental and Water Resources Institute 
 - New Delhi :  McGraw-Hill,  c2006 
 - xliv, 597p. :  ill.;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0071464158  $125.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Nutrient removal<br/>Water--Purification--Nitrogen removal<br/>Nutrient pollution of water
<br/><br/><label>Dewey Class. No.: </label>628.357