MBBR-MBR组合工艺处理生活污水效能及膜污染研究

张恒亮; 段亮; 姚美辰; 魏健

doi:10.12153/j.issn.1674-991X.2019.01.240

MBBR-MBR组合工艺处理生活污水效能及膜污染研究

doi: 10.12153/j.issn.1674-991X.2019.01.240

张恒亮^1,2,3,
段亮^2,3,, ,,
姚美辰^2,3,
魏健^2,3

^1. 北京师范大学水科学研究院,北京 100875
^2. 环境基准与风险评估国家重点实验室,中国环境科学研究院,北京 100012
^3. 中国环境科学研究院城市水环境研究室,北京 100012

详细信息

作者简介:
张恒亮(1990—),男,博士研究生,主要从事水处理技术研究, 1079092104@qq.com

通讯作者:
段亮 E-mail: duanliang@craes.org.cn

中图分类号: X703
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- 被引次数: 0
出版历程
- 收稿日期: 2018-11-09
- 刊出日期: 2019-05-20

Study on performance and membrane fouling of MBBR-MBR combined process for treatment of domestic wastewater

ZHANG Hengliang^1,2,3,
DUAN Liang^{2,3,
, ,},
YAO Meichen^2,3,
WEI Jian^2,3

^1. College of Water Sciences, Beijing Normal University, Beijing 100875, China
^2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
^3. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

More Information

Corresponding author: Liang DUAN E-mail: duanliang@craes.org.cn

摘要

摘要: 构建了移动床生物膜反应器(MBBR)-膜生物反应器(MBR)组合工艺处理生活污水,考察了其对污染物的去除效果和膜污染情况。结果表明,MBBR-MBR对$NH_{4}^{+}$-N和COD的去除率均能达到97%以上。MBR中跨膜压随运行时间延长呈先慢速增加后快速增加的特点,活性污泥微生物胞外聚合物(EPS)和微生物代谢产物(SMP)是膜污染的重要物质,普通的化学清洗并不能使MBR膜组件恢复到新膜的水平,膜污染呈不可逆性。EPS的表观分子量分布较广泛,而SMP的表观分子量呈单峰特征,主要以小分子量物质为主。
- 移动床生物膜反应器(MBBR) /
- 膜生物反应器(MBR) /
- 生活污水 /
- 胞外聚合物 /
- 微生物代谢产物
Abstract: A moving bed biofilm reactor(MBBR)-membrane bioreactor(MBR) combined process was constructed to treat domestic wastewater, and the removal effect of pollutant and membrane fouling were investigated. The results showed that the removal rate of $NH_{4}^{+}$-N and COD could reach 97% by MBBR-MBR. The membrane suction pressure in MBR was characterized by a slow increase and then a rapid increase with the extension of the running time. Extracellular polymeric substances (EPS) and soluble microbial products (SMP) were important factors influencing membrane fouling. Ordinary chemical cleaning did not restore the MBR membrane module to the level of the new, showing irreversibility. The apparent molecular weight distribution of EPS was more extensive, while the apparent molecular weight of SMP exhibited a single peak characteristic. SMP was mainly composed of small molecular weight substances.
- moving bed biofilm reactor(MBBR) /
- membrane bioreactor(MBR) /
- domestic wastewater /
- extracellular polymeric substances /
- soluble microbial products

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