Performance study of the reduction of excess sludge and simultaneous removal of organic carbon and nitrogen by a combination of fluidized- and fixed-bed bioreactors with different structured macroporous carriers | |
Feng, Quan ; Yu, Anfeng ; Chu, Libing ; Xing, Xin-Hui | |
2010-05-07 ; 2010-05-07 | |
关键词 | fluidized-bed bioreactor fixed-bed bioreactor porous carriers excess sludge reduction wastewater treatment nitrogen removal WASTE-WATER TREATMENT POROUS CARRIER NITRIFYING BACTERIA TREATMENT REACTOR ACTIVATED-SLUDGE BIOFILM DETACHMENT SUBSTANCES PARTICLES Biotechnology & Applied Microbiology Engineering, Chemical |
中文摘要 | Aiming for the reduction of excess sludge and the simultaneous removal of organic carbon and nitrogen, a new two-stage bioreactor system constructed by combining three-phase fluidized-bed (TFB) and sludge-reduction fixed-bed bioreactor (SFB) processes with different structured porous carriers was proposed. In this system, wastewater was first treated in the TFB bioreactor, in which the organic and nitrogenous compounds were simultaneously removed, and then the excess sludge produced in the TFB and residual organic substances flowed into the SFB for further degradation of suspended solids (SS) and nutrient removal. During a 470-day continuous operation, the average COD removal ratio reached about 95% at the influent COD of 500-600 mg/L. The removal ratio of T-N could reach up to 28-55% and was carried out through both microbial growth and simultaneous nitrification and denitrification (SND). The SS from TFB could be reduced in the following fixed-bed from 160 mg/L to 28 mg/L with two SFBs without the settling tank. Therefore, the simultaneous removal of organic carbon and nitrogen with an on-site reduction of excess sludge could be achieved in this two-stage bioreactor. (c) 2007 Elsevier B.V. All rights reserved. |
语种 | 英语 ; 英语 |
出版者 | ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/17627] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Feng, Quan,Yu, Anfeng,Chu, Libing,et al. Performance study of the reduction of excess sludge and simultaneous removal of organic carbon and nitrogen by a combination of fluidized- and fixed-bed bioreactors with different structured macroporous carriers[J],2010, 2010. |
APA | Feng, Quan,Yu, Anfeng,Chu, Libing,&Xing, Xin-Hui.(2010).Performance study of the reduction of excess sludge and simultaneous removal of organic carbon and nitrogen by a combination of fluidized- and fixed-bed bioreactors with different structured macroporous carriers.. |
MLA | Feng, Quan,et al."Performance study of the reduction of excess sludge and simultaneous removal of organic carbon and nitrogen by a combination of fluidized- and fixed-bed bioreactors with different structured macroporous carriers".(2010). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论