[1]李天宇,刘志远,高寿祥,等.微丝菌型污泥膨胀的应急控制方法与实践[J].中国给水排水,2026,42(3):103-108.
　LITianyu,LIUZhiyuan,GAOShouxiang,et al.Emergency Control Measures and Practices for Sludge Bulking Caused by Microthrix parvicella[J].China Water & Wastewater,2026,42(3):103-108.
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微丝菌型污泥膨胀的应急控制方法与实践

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第3期 页码: 103-108 栏目: 出版日期: 2026-02-01
Title:
Emergency Control Measures and Practices for Sludge Bulking Caused by Microthrix parvicella
作者:
李天宇1， 刘志远1， 高寿祥2， 宋胜男1， 王光辉1
（1.北京首创生态环保集团股份有限公司，北京 100044；2.宁夏首创海绵城市建设发展有限公司，宁夏 固原 756000）
Author(s):
LI　Tianyu1， LIU　Zhiyuan1， GAO　Shouxiang2， SONG　Shengnan1， WANG　Guanghui1
（1. Beijing Capital Eco-Environment Protection Group Co. Ltd.， Beijing 100044， China； 2. NingxiaCapital Sponge City Construction and Development Co. Ltd.， Guyuan 756000， China）
关键词:
污泥膨胀;  微丝菌;  杀菌剂投加;  应急控制
Keywords:
sludge bulking;  Microthrix parvicella;  disinfectant dosing;  emergency control
摘要:
为了有效控制并解决国内污水处理厂普遍遇到的污泥膨胀问题，以固原市第三污水处理厂多模式AAOAO+矩形沉淀池+深床砂滤池工艺出现的微丝菌型污泥膨胀为案例，在生产规模下分析投加絮凝剂和杀菌剂两种方式对污泥膨胀的控制效果。结果发现，虽然单独投加聚丙烯酰胺（PAM）在小试中效果明显，但在生产规模下应用效果不佳，极易引发设备堵塞和污泥脱水系统的运行问题；而与镜检结合的杀菌剂投加方案仅用15 d，微丝菌数量比例就由29.50%降低至5.22%，污泥沉降性能快速恢复并且没有对其他功能菌造成抑制。实践表明，合理设计杀菌剂的投加位置、严格控制有效氯投加量与投加频率、配合辅助性的过程监测，可在不影响出水水质的情况下实现对微丝菌型污泥膨胀的快速靶向控制。
Abstract:
To effectively address the prevalent issue of sludge bulking in domestic wastewater treatment plants, this study investigated a case of filamentous sludge bulking that occurred in the Third Wastewater Treatment Plant of Guyuan City, which employs a multi-mode AAOAO process combined with rectangular sedimentation tank and deep-bed sand filtration. The effectiveness of chemical control strategies, specifically the addition of flocculant and disinfectant, on mitigating sludge bulking was evaluated under full-scale conditions. Although the addition of polyacrylamide (PAM) alone demonstrated notable effects in small-scale trials, its performance remained unsatisfactory in full-scale applications, where it was highly prone to causing equipment blockages and operational issues within the sludge treatment system. However, the proportion of Microthrix parvicella (MP) was reduced from 29.50% to 5.22% within just 15 days by implementing a disinfectant dosing strategy combined with microscopic monitoring. This approach effectively restored the system’s sedimentation performance without inhibiting other functional microbial populations. The practical application results demonstrated that rapid and targeted control of MP sludge bulking could be achieved without compromising effluent quality by rationally designing the disinfectant dosing location, strictly controlling the dosage and frequency of effective chlorine, and integrating auxiliary process monitoring.

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更新日期/Last Update: 2026-02-01