污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化

周晓华; 潘杨; 陈茜茜; 邓猛; 郑莹

doi:10.12030/j.cjee.201504244

环境工程学报

污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化

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周晓华, 潘杨, 陈茜茜, 邓猛, 郑莹. 污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化[J]. 环境工程学报, 2016, 10(10): 5643-5647. doi: 10.12030/j.cjee.201504244

引用本文:

周晓华, 潘杨, 陈茜茜, 邓猛, 郑莹. 污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化[J]. 环境工程学报, 2016, 10(10): 5643-5647. doi: 10.12030/j.cjee.201504244

ZHOU Xiaohua, PAN Yang, CHEN Qianqian, DENG Meng, ZHENG Ying. Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5643-5647. doi: 10.12030/j.cjee.201504244

Citation:

ZHOU Xiaohua, PAN Yang, CHEN Qianqian, DENG Meng, ZHENG Ying. Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5643-5647. doi: 10.12030/j.cjee.201504244

污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化

1.
苏州科技大学环境科学与工程学院, 苏州 215009
2.
苏州科技大学环境生物技术研究所, 苏州 215009
基金项目:
国家重点研发计划（2016YFC0401108）

江苏省高校自然科学研究重大项目（14KJA610001）

江苏省“333”学术带头人培养工程资助项目（331491201）

江苏省优势学科资助项目
中图分类号: X703

Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process

1.
School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
2.
Environment Biotechnology Research Institute, Suzhou University of Science and Technology, Suzhou 215009, China
Fund Project:

摘要: 采用新型脱氮除磷工艺-污泥转移SBR处理生活污水，主反应器因长时间处于低污泥负荷0.09~0.15 kg·（kg·d）-1，引起了丝状菌污泥膨胀；通过采取提高进水负荷及静态进水等方式，提高主反应器内的污泥负荷0.21~0.39 kg·（kg·d）-1使其污泥膨胀得以控制及恢复。考察在此过程中，EPS的变化对活性污泥沉降性能的影响。结果表明在污泥膨胀及恢复过程中PS/PN与SVI值呈明显正相关性，R2分别为0.886 7、0.867 3；在污泥膨胀时EPS总量与SVI值呈正相关性；在恢复过程中，EPS总量与SVI值之间线性相关性不强。影响活性污泥沉降性能的关键因素是EPS中多糖与蛋白质的相对含量。
- 污泥转移SBR工艺 /
- 污泥膨胀 /
- 胞外聚合物
Abstract: A new process of phosphorus and nitrogen removal and sludge-shifting SBR was used for domestic sewage treatment.Because of the long duration of the operation at the low sludge load of 0.09 to 0.15 kg·(kg·d)-1,filamentous sludge bulking was observed in the main reactor.The sludge bulking was controlled and recovered when the sludge load of the main reactor was increased from 0.21 to 0.39 kg·(kg·d)-1,by increasing the influent load and taking the way of the static water.The effects of extracellular polymeric substances (EPS) on the settling performance of the activated sludge were also studied during the process.Positive correlations between PS/PN and the SVI value were found in both the sludge expansion and the recovery processes,with the R2 being 0.886 7 and 0.867 3,respectively.The EPS amount significantly and positively correlated with the SVI value in the sludge bulking process,while the correlation between the total EPS and the SVI values was not strong in the sludge recovery process.The crucial influencing factor in the settling ability of the activated sludge was the relative content of polysaccharide and protein in EPS.
- sludge shifting SBR process /
- sludge bulking /
- EPS

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污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化

1. 苏州科技大学环境科学与工程学院, 苏州 215009
2. 苏州科技大学环境生物技术研究所, 苏州 215009

收稿日期: 2015-06-14

基金项目:

国家重点研发计划（2016YFC0401108）

江苏省高校自然科学研究重大项目（14KJA610001）

江苏省“333”学术带头人培养工程资助项目（331491201）

江苏省优势学科资助项目

关键词:

摘要: 采用新型脱氮除磷工艺-污泥转移SBR处理生活污水，主反应器因长时间处于低污泥负荷0.09~0.15 kg·（kg·d）-1，引起了丝状菌污泥膨胀；通过采取提高进水负荷及静态进水等方式，提高主反应器内的污泥负荷0.21~0.39 kg·（kg·d）-1使其污泥膨胀得以控制及恢复。考察在此过程中，EPS的变化对活性污泥沉降性能的影响。结果表明在污泥膨胀及恢复过程中PS/PN与SVI值呈明显正相关性，R2分别为0.886 7、0.867 3；在污泥膨胀时EPS总量与SVI值呈正相关性；在恢复过程中，EPS总量与SVI值之间线性相关性不强。影响活性污泥沉降性能的关键因素是EPS中多糖与蛋白质的相对含量。

English Abstract

Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process

1. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
2. Environment Biotechnology Research Institute, Suzhou University of Science and Technology, Suzhou 215009, China

Received Date: 2015-06-14

Fund Project:

Keywords:

Abstract: A new process of phosphorus and nitrogen removal and sludge-shifting SBR was used for domestic sewage treatment.Because of the long duration of the operation at the low sludge load of 0.09 to 0.15 kg·(kg·d)-1,filamentous sludge bulking was observed in the main reactor.The sludge bulking was controlled and recovered when the sludge load of the main reactor was increased from 0.21 to 0.39 kg·(kg·d)-1,by increasing the influent load and taking the way of the static water.The effects of extracellular polymeric substances (EPS) on the settling performance of the activated sludge were also studied during the process.Positive correlations between PS/PN and the SVI value were found in both the sludge expansion and the recovery processes,with the R2 being 0.886 7 and 0.867 3,respectively.The EPS amount significantly and positively correlated with the SVI value in the sludge bulking process,while the correlation between the total EPS and the SVI values was not strong in the sludge recovery process.The crucial influencing factor in the settling ability of the activated sludge was the relative content of polysaccharide and protein in EPS.

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污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化

Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process

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污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化

English Abstract

Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process

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