新冠肺炎疫情期间城镇再生水厂低负荷运行实践  

Low influent loading operation practice of urban reclaimed water plants during the period of COVID-19 epidemic

作　　者：郑江[1] 李群 刘垚[1] 张荣兵[1] 白宇[1] 文洋[1] 王佳伟[1] 葛勇涛[1] 王润芳 牛硕 王晓爽[1] 蒋奇海 李鹏飞 严瞿飞 张辉[1] Zheng Jiang;Li Qun;Liu Yao;Zhang Rongbing;Bai Yu;Wen Yang;Wang Jiawei;Ge Yongtao;Wang Runfang;Niu Shuo;Wang Xiaoshuang;Jiang Qihai;Li Pengfei;Yan Qufei;Zhang Hui(Beijing Drainage Group Co.,Ltd.,Beijing 100044,China)

机构地区：[1]北京城市排水集团有限责任公司,北京100044

出　　处：《给水排水》2020年第5期35-40,共6页Water & Wastewater Engineering

摘　　要：受新冠肺炎疫情影响,北京市中心城区11座再生水厂长时间处于低负荷运行状态,污泥膨胀和出水水质波动风险加剧。各再生水厂通过优化进水碳源分布、改善缺氧环境,实现了生物脱氮效果稳定;通过微生物种群结构检测、污泥负荷评估调控,降低了污泥膨胀风险;通过精准调控、厂网联动联调等措施,保障系统稳定、节能降耗、出水水质安全达标。11 urban reclaimed water plants in the center districts of Beijing were operated under the condition of low loading for a long time affected by COVID-19.Low organic loading is easy to cause sludge bulking and effluent water quality fluctuation.In order to stabilize biological denitrification effect,optimize the distribution of influent carbon source and improve the anoxic environment,the operation of equipment and facilities were optimized in these reclaimed water plants.Through testing of microbial population structure and controlling of organic loading to reduce the risk of sludge bulking.With precision control and the combination operation of water transfer between reclaimed water plant and pipe network,the biological system stability was improved,energy conservation and consumption were reduced,and effluent water quality was stable and safe to meet the effluent standard.

关 键 词：新冠肺炎 低负荷运行 生物脱氮 污泥膨胀控制 精准调控系统 

分 类 号：TU992[建筑科学—市政工程]