[1]吴远远,Mark van Loosdrecht,郝晓地,等.好氧颗粒污泥低温稳定性中试研究[J].中国给水排水,2022,38(11):56-61.
　WUYuan-yuan,Mark van Loosdrecht,HAOXiao-di,et al.A Pilot Study on Stability of Aerobic Granular Sludge at Low Temperature[J].China Water & Wastewater,2022,38(11):56-61.
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好氧颗粒污泥低温稳定性中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第11期 页码: 56-61 栏目: 出版日期: 2022-06-01
Title:
A Pilot Study on Stability of Aerobic Granular Sludge at Low Temperature
作者:
吴远远1， Mark van Loosdrecht2， 郝晓地3， 翟学棚1， 许雪乔1， 林甲1， 江瀚1
（1.北京首创股份有限公司 中-荷未来污水处理技术研发中心，北京 100044；2.代尔夫特理工大学，荷兰；3.北京建筑大学 北京未来城市设计高精尖中心，北京 100044）
Author(s):
WU　Yuan-yuan1， Mark van Loosdrecht2， HAO　Xiao-di3， ZHAI　Xue-peng1， XU　Xue-qiao1， LIN　Jia1， JIANG　Han1
（1. Sino-Dutch R & D Centre for Future Wastewater Treatment Technologies， Beijing Capital Co. Ltd.， Beijing 100044， China； 2. Delft University of Technology， the Netherlands； 3. Beijing Advanced Innovation Centre of Future Urban Design， Beijing University of Civil Engineering and Architecture， Beijing 100044， China）
关键词:
好氧颗粒污泥;  低碳源进水;  颗粒化;  低温;  营养物去除
Keywords:
aerobic granular sludge (AGS);  low-carbon source sewage;  granulation;  low temperature;  nutrient removal
摘要:
好氧颗粒污泥技术具有占地面积小、能耗低、剩余污泥量少、抗冲击性强等优点，是一种可持续的污水处理技术。以北京某污水处理厂实际生活污水作为基质，在中试规模（有效容积为2.5 m3）反应器中进行好氧颗粒污泥培养，研究了颗粒污泥在低温条件下的稳定性。中试自夏季开始运行到次年春季结束，共计运行260 d。结果表明，采用我国实际低碳源市政污水可以培养出好氧颗粒污泥，污泥颗粒化程度可达94%，SVI5/SVI30为1.1 ~ 1.3。冬季低温会造成颗粒污泥的枝状结构增多、丝状菌生长，进而引起颗粒化比例略有下降，为80%~91%，污泥平均粒径降低，SVI5/SVI30升高至1.5 ~ 1.8。在冬季低温条件下，通过优化调控进水流量、曝气时长、曝气过程DO浓度可提高脱氮效率。中试期间各阶段反应器出水COD、TP、NH4+-N以及TN均可以满足GB 18918—2002的一级A排放标准，但是低温条件下TN去除率略有下降（降幅为6%~9%），存在一定超标风险。
Abstract:
Aerobic granular sludge (AGS) is widely considered as a sustainable technology for wastewater treatment due to the great advantages over conventional activated sludge: low footprint, low energy consumption, low disposed sludge and high tolerance to the fluctuations etc. A pilot reactor (effective volume of 2.5 m3) was operated for 260 days to cultivate the AGS with actual municipal wastewater and investigate the influence of low temperature on the stability of AGS. The reactor was started in summer，and finally a high granulation rate of 94% was realized with a low SVI5/SVI30 of 1.1-1.3, which indicated a mature granular system. However, granulation rate slightly decreased to 80%-91% with SVI5/SVI30 increasing to 1.5-1.8 while Zoogloea ramigera, filamentous grew at low temperature condition. Under low temperature conditions in winter, nitrogen removal efficiency was improved by adjusting influent flow rate, aeration duration and DO concentration. The effluent COD、TP、NH4+-N and TN could meet the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) during the whole experiments, however the TN removal efficiency slightly decreased (almost 6%-9%) which indicated a risk of exceeding the standard.

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更新日期/Last Update: 2022-06-01