Aerobic granular sludge: characterization, mechanism of granulation and application to wastewater treatment

被引:267
作者
Gao, Dawen [1 ,2 ]
Liu, Lin [1 ]
Liang, Hong [1 ]
Wu, Wei-Min [3 ]
机构
[1] NE Forestry Univ, Sch Forestry, Harbin, Peoples R China
[2] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150006, Peoples R China
[3] Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA
关键词
Aerobic granular sludge; sequencing batch reactor; biological wastewater treatment; EXTRACELLULAR POLYMERIC SUBSTANCES; AMMONIUM-OXIDIZING BACTERIA; SEQUENCING BATCH REACTOR; GROWN MICROBIAL GRANULES; EXTENDED IDLE CONDITIONS; ACTIVATED-SLUDGE; SELECTION PRESSURE; PHYSICAL-CHARACTERISTICS; NI2+ BIOSORPTION; NITROGEN REMOVAL;
D O I
10.3109/07388551.2010.497961
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
Aerobic granular sludge can be classified as a type of self-immobilized microbial consortium, consisting mainly of aerobic and facultative bacteria and is distinct from anaerobic granular methanogenic sludge. Aerobic granular technology has been proposed as a promising technology for wastewater treatment, but is not yet established as a large-scale application. Aerobic granules have been cultured mainly in sequenced batch reactors (SBR) under hydraulic selection pressure. The factors influencing aerobic granulation, granulation mechanisms, microbial communities and the potential applications for the treatment of various wastewaters have been studied comprehensively on the laboratory-scale. Aerobic granular sludge has shown a potential for nitrogen removal, but is less competitive for the high strength organic wastewater treatments. This technology has been developed from the laboratory-scale to pilot scale applications, but with limited and unpublished full-scale applications for municipal wastewater treatment. The future needs and limitations for aerobic granular technology are discussed.
引用
收藏
页码:137 / 152
页数:16
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