文档介绍：Treatment of Starch Industry Wastewater 253 Applied Biochemistry and Biotechnology Vol. 109, 2003 253 *Author to whom all correspondence and reprint requests should be addressed. Copyright ? 2003 by Humana Press Inc. All rights of any nature whatsoever reserved. 0273-2289/03/109/0253/$ Biologic (Anaerobic-Aerobic) and Chemical Treatment of Starch Industry Wastewater V LADIMIR S KLYAR , 1 A NDREY E POV , 1 M ARINA G LADCHENKO , 1 D MITRII D ANILOVICH , 2 AND S ERGEY K ALYUZHNYI * ,1 1 Department of Chemical Enzymology, Chemistry Faculty, Moscow State University, 119899 Moscow, Russia, E-mail: ******@; and 2 MOSVODOKANAL, Pleteshkovskiy pereulok 2, 107005 Moscow, Russia Abstract bined biologic and chemical treatment of high-strength (total chemi- cal oxygen demand [COD tot ] up to 20 g/L), strong nitrogenous (total N up to 1 g/L), and phosphoric (total P up to g/L) starch industry wastewater was investigated at laboratory-scale level. As a principal step for COD elimi- nation, upflow anaerobic sludge bed reactor performance was investigated at 30 ° C. Under hydraulic retention times (HRTs) of about 1 d, when anic loading rates were higher than 15 g of COD/(L·d), the COD totremoval varied between 77 and 93%, giving effluents with a COD/N ratio of 4–5:1, approaching the requirements of subsequent denitrification. The activated sludge reactor operat