微生物絮凝剂投加方式对好氧颗粒污泥性能的影响

doi:10.13278/j.cnki.jjuese.201501207

吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (1): 247-254.doi: 10.13278/j.cnki.jjuese.201501207

微生物絮凝剂投加方式对好氧颗粒污泥性能的影响

宋志伟¹, 王秋旭¹, 宁婷婷¹, 任南琪², 李立欣¹

1. 黑龙江科技大学环境与化工学院, 哈尔滨 150022;
2. 哈尔滨工业大学城市水资源与水环境国家重点实验室, 哈尔滨 150090

收稿日期:2014-06-05 发布日期:2015-01-26
作者简介:宋志伟(1968), 女, 教授, 博士, 主要从事污水治理技术及工艺方面的研究, E-mail:szwcyp@163.com
基金资助:
国家自然科学基金项目(51408200);黑龙江省自然科学基金项目(E201461)

Influence of Microbial Flocculant Dosing Way on Performance of Aerobic Granules

Song Zhiwei¹, Wang Qiuxu¹, Ning Tingting¹, Ren Nanqi², Li Lixin¹

1. School of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China;
2. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China

Received:2014-06-05 Published:2015-01-26

摘要/Abstract

摘要：

为提高好氧污泥颗粒化速度, 采用微生物絮凝剂, 探讨在好氧颗粒污泥培养过程中微生物絮凝剂的投加方式对颗粒污泥理化性能及生物降解效能的影响。结果表明:微生物絮凝剂每隔2、3、5、7 d投加一次时, 均可培养出成熟的好氧颗粒污泥, 微生物絮凝剂的投加方式对好氧污泥颗粒化的影响较显著;微生物絮凝剂最佳投加方式为每5天投加一次, 此时颗粒化速度快, 颗粒形成时间由未投加的60 d缩短为42 d, 好氧颗粒污泥疏水性好, 污泥体积指数稳定在40 mL/g左右, 沉降速度达35.06 m/h, COD、氨氮和总磷的去除率分别为96.55%、93.29%和87.29%。

关键词: 微生物絮凝剂, 好氧颗粒污泥, 气升式内循环序批反应器

Abstract:

Aerobic granular sludge was cultivated successfully by adding microbial flocculant in the sequencing batch airlift reactors (SBARs). The physical-chemical properties and biodegradation efficiencies of the granules were studied to investigate the influence of microbial flocculant dosing way on the characteristics of aerobic granular sludge. The results showed that dosing way has a significant influence on the granulation of aerobic sludge. Aerobic granules could be formed when a certain amount of flocculant bacterium were adding into SBARs every 2, 3, 5, 7 days, respectively. The optimum dosing way was dosing every 5 day, in which case the grranulation term of aerobic granules was only 42 d, and was faster than that of 60 d in blank experiment. SVI was around 40 mL/g, settling velocity reached 35.06 m/h, the COD, NH₄⁺-N and TP removal rates of mature granular sludge was 96.55%, 93.29% and 87.29%, respectively.

Key words: microbial flocculant, aerobic granular sludge, sequencing batch airlift reactor (SBAR)

中图分类号:

X703.1

宋志伟, 王秋旭, 宁婷婷, 任南琪, 李立欣. 微生物絮凝剂投加方式对好氧颗粒污泥性能的影响[J]. 吉林大学学报(地球科学版), 2015, 45(1): 247-254.

Song Zhiwei, Wang Qiuxu, Ning Tingting, Ren Nanqi, Li Lixin. Influence of Microbial Flocculant Dosing Way on Performance of Aerobic Granules[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 247-254.

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微生物絮凝剂投加方式对好氧颗粒污泥性能的影响

Influence of Microbial Flocculant Dosing Way on Performance of Aerobic Granules

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