[1]陈浩林,彭轶,安东,等.分段进水多级A/O工艺污泥膨胀的诊断与调控[J].中国给水排水,2021,37(20):92-98.
　CHEN Hao-lin,PENG Yi,AN Dong,et al.Diagnosis and Control of Sludge Bulking in Step-feed Multi-stage A/O Process[J].China Water & Wastewater,2021,37(20):92-98.
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分段进水多级A/O工艺污泥膨胀的诊断与调控

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第20期 页码: 92-98 栏目: 出版日期: 2021-10-17
Title:
Diagnosis and Control of Sludge Bulking in Step-feed Multi-stage A/O Process
作者:
陈浩林1,2，彭轶1,2,3，安东1,2，孙哲1,2，卢先春2,邓龙4
(1.北京信通碧水再生水有限公司，北京101149；2.国投信开水环境投资有限公司，北京101101；3.四川蓉信开工程设计有限公司，四川成都610041；4.贵阳南明筑秀水务环境产业有限公司，贵州贵阳550000)
Author(s):
CHEN Hao-lin1,2,PENG Yi1,2,3,AN Dong1,2,SUN Zhe1,2,LU Xian-chun2，DENG Long4
(1. Beijing Xintong Bishui Reclaimed Water Co. Ltd., Beijing 101149, China; 2. SDIC Xinkai Water Environment Investment Co. Ltd., Beijing 101101, China; 3. Sichuan Rongxinkai Engineering Design Co. Ltd., Chengdu 610041, China； 4. Guiyang Nanming Zhuxiu Water Environmental Industry Co. Ltd., Guiyang 550000, China)
关键词:
多级A/O; 污泥膨胀; 丝状菌; 污泥负荷; 工艺调控
Keywords:
multi-stage A/O; sludge bulking; filamentous bacteria; sludge loading; process control
摘要:
针对北方某城市污水处理厂分段进水多级A/O工艺出现污泥膨胀现象，结合多级A/O工艺特点分析导致系统发生污泥膨胀的可能原因，通过现场取样观测污泥性状、镜检生物相和衡算沿程各工艺参数等方式，综合分析判断出引起该污水厂污泥膨胀的原因为水温骤降、DO浓度低、MLSS过高、污泥负荷偏低。为降低污泥膨胀对系统运行和出水水质的影响，采取投加药剂、调整曝气量、加大排泥和调整回流比、进水流量分配比等措施,逐步恢复生化系统的稳定性和脱碳脱氮除磷功能。
Abstract:
In view of the sludge bulking phenomenon in the step-feed multi-stage A/O process of a municipal wastewater treatment plant in north China, the possible causes of sludge bulking in the system are analyzed in combination with the characteristics of the multi-stage A/O process. By field sampling, sludge characteristics observing, microscopic examination of biological phase and balance calculation of process parameters along the process, the causes of sludge bulking are found to be sudden drop of water temperature, low DO concentration, high MLSS and low sludge load. In order to reduce the influence of sludge bulking on system disorder and effluent quality, the measures such as adding chemicals, adjusting aeration rate, increasing sludge discharge, adjusting reflux ratio and influent flow distribution ratio were adopted to gradually restore the stability of the biochemical system and the function of carbon, nitrogen and phosphorus removal.

相似文献/References:

[1]陈浩林,彭轶,安东,等.分段进水多级A/O工艺污泥膨胀控制专家系统[J].中国给水排水,2021,37(8):153.
　CHEN Hao-lin,PENG Yi,AN Dong,et al.Expert System for Sludge Bulking Control in Multi-stage A/O Process[J].China Water & Wastewater,2021,37(20):153.
[2]周鹏,李鹏飞,杨丽亚,等.改良A2O工艺污泥膨胀伴随泡沫的影响及调控措施[J].中国给水排水,2021,37(10):105.
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[3]王拓,严冰.多级A/O工艺协同精确控制系统用于低C/N进水污水厂[J].中国给水排水,2021,37(12):65.
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[4]鲁文娟,王浩龙,袁林江.缺氧区与好氧区HRT之比对污泥膨胀的影响[J].中国给水排水,2021,37(15):77.
　LU Wen-juan,WANG Hao-long,YUAN Lin-jiang.Effect of Ratio of Hydraulic Retention Time between Anoxic Zone and Aerobic Zone on Sludge Bulking[J].China Water & Wastewater,2021,37(20):77.

更新日期/Last Update: 2021-10-17