Strategy for minimization of excess sludge production from the activated sludge process

被引:256
作者
Liu, Y [1 ]
Tay, JH [1 ]
机构
[1] Nanyang Technol Univ, Sch Civil & Struct Engn, Environm Engn Res Ctr, Singapore 639798, Singapore
关键词
activated sludge process; excess sludge; sludge minimization;
D O I
10.1016/S0734-9750(00)00066-5
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Increased attention has been given to minimization of sludge production from activated sludge process since environmental regulations are being more and more stringent in relation to excess sludge disposal. In a biological process, the more organic carbon utilized in carbon dioxide production, the fewer sludge produced, and vice versa. This paper, therefore, reviews strategies developed for minimization of excess sludge production, such as oxic-settling-anaerobic process, high dissolved oxygen process, uncoupler-containing activated sludge process, ozonation-combined activated sludge process, control of sludge retention time and biodegradation of sludge in membrane-assisted reactor. In these modified activated sludge processes, excess sludge production can be reduced by 20-100% without significant effect on process efficiency and stability. It is expected that this paper would be helpful for researchers and engineers to develop novel and efficient operation strategy to minimize sludge production from biological systems. (C) 2001 Elsevier Science Inc. All rights reserved.
引用
收藏
页码:97 / 107
页数:11
相关论文
共 58 条
[11]  
CHEN GH, 2000, IN PRESS WATER RES
[12]   EFFECT OF ANAEROBIC STABILIZATION OF ACTIVATED-SLUDGE ON ITS PRODUCTION UNDER BATCH CONDITIONS AT VARIOUS SO/XO RATIOS [J].
CHUDOBA, P ;
CHEVALIER, JJ ;
CHANG, J ;
CAPDEVILLE, B .
WATER SCIENCE AND TECHNOLOGY, 1991, 23 (4-6) :917-926
[13]   THE CASE OF BOTH ENERGETIC UNCOUPLING AND METABOLIC SELECTION OF MICROORGANISMS IN THE OSA ACTIVATED-SLUDGE SYSTEM [J].
CHUDOBA, P ;
MOREL, A ;
CAPDEVILLE, B .
ENVIRONMENTAL TECHNOLOGY, 1992, 13 (08) :761-770
[14]  
CHUDOBA P, 1991, 6 IAWPRC C DES OP LA
[15]  
CHUDOBA P, 1991, THESIS I NATL SCI AP
[16]   ENERGY-SPILLING REACTIONS OF STREPTOCOCCUS-BOVIS AND RESISTANCE OF ITS MEMBRANE TO PROTON CONDUCTANCE [J].
COOK, GM ;
RUSSELL, JB .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1994, 60 (06) :1942-1948
[17]   Comparing sludge production under aerobic and anoxic conditions [J].
Copp, JB ;
Dold, PL .
WATER SCIENCE AND TECHNOLOGY, 1998, 38 (01) :285-294
[18]  
Gaudy A.F. J., 1980, MICROBIOLOGY ENV SCI
[19]  
Ghigliazza R, 1996, BIOPROCESS ENG, V14, P131
[20]   Reduced sludge production in a two-stage membrane-assisted bioreactor [J].
Ghyoot, W ;
Verstraete, W .
WATER RESEARCH, 2000, 34 (01) :205-215