Deterioration mechanisms of sludge settleability in sludge reduction systems with metabolic uncouplers
文献类型：期刊论文
| 作者 | Xiao, Benyi; Chen, Hong; Luo, Meng; Zhang, Wenzhe; Liu, Junxin; Han, Yunping |
| 刊名 | INTERNATIONAL BIODETERIORATION & BIODEGRADATION
 |
| 出版日期 | 2017-09-01 |
| 卷号 | 123期号:0页码:296-303 |
| 关键词 | N-acyl-l-homoserine Lactone Content Metabolic Uncoupler Deterioration Mechanism Sludge Reduction System Settleability |
| 英文摘要 | The deterioration of sludge settleability is a common problem in sludge reduction systems with metabolic uncouplers (MUs). The deterioration mechanisms were studied by conducting laboratory-based tests for 85 days. The sludge volume index (SVI30) increased from 88.0 mL/g SS to 149.5-158.9 mL/g SS with MUs. The addition of MUs decreased the N-acyl-L-homoserine lactone (AHLs) content of the sludge by increasing the AHL-degrading bacteria (Paenibacillus spp., Bacillus spp. and Microbacterium sp.) and decreasing or eliminating the AHL-producing bacteria (Paracoccus sp.). Meanwhile, the addition of MUs increased the extracellular polymeric substances (EPS) of sludge and decreased its protein polysaccharide ratio (PN/PS). The decrease of AHL content and the changes of EPS resulted in the deterioration of sludge settleability in the MUs systems. The statistical analysis suggested the decrease of AHL content was more important than the change of sludge EPS on deteriorate the sludge settleability. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39190]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Xiao, Benyi,Chen, Hong,Luo, Meng,et al. Deterioration mechanisms of sludge settleability in sludge reduction systems with metabolic uncouplers[J]. INTERNATIONAL BIODETERIORATION & BIODEGRADATION,2017,123(0):296-303. |
| APA | Xiao, Benyi,Chen, Hong,Luo, Meng,Zhang, Wenzhe,Liu, Junxin,&Han, Yunping.(2017).Deterioration mechanisms of sludge settleability in sludge reduction systems with metabolic uncouplers.INTERNATIONAL BIODETERIORATION & BIODEGRADATION,123(0),296-303. |
| MLA | Xiao, Benyi,et al."Deterioration mechanisms of sludge settleability in sludge reduction systems with metabolic uncouplers".INTERNATIONAL BIODETERIORATION & BIODEGRADATION 123.0(2017):296-303. |
入库方式： OAI收割
来源：生态环境研究中心
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