[1]李婧,赵卫兵,袁玺,等.UCT/高密度沉淀池/活性砂滤池工艺用于城镇污水厂[J].中国给水排水,2023,39(14):71-74.
　LIJing,ZHAOWei-bing,YUANXi,et al.Application of UCT/High Density Sedimentation Tank/Active Sand Filter Combined Process in Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(14):71-74.
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UCT/高密度沉淀池/活性砂滤池工艺用于城镇污水厂

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第14期 页码: 71-74 栏目: 出版日期: 2023-07-17
Title:
Application of UCT/High Density Sedimentation Tank/Active Sand Filter Combined Process in Wastewater Treatment Plant
作者:
李婧， 赵卫兵， 袁玺， 张帆， 姜佳玉
（中机十院国际工程有限公司，北京 100101）
Author(s):
LI　Jing， ZHAO　Wei-bing， YUAN　Xi， ZHANG　Fan， JIANG　Jia-yu
（Sinomach TDI International Engineering Co. Ltd.， Beijing 100101， China）
关键词:
UCT;  高密度沉淀池;  活性砂滤池
Keywords:
UCT;  high density sedimentation tank;  active sand filter
摘要:
河北省白沟第二污水处理厂处理规模为3.5×104 m3/d，原水为市政污水和少量工业废水（比例3∶1），出水执行《大清河流域水污染物排放标准》（DB 13/2795—2018）中的重点控制区标准。通过对进出水水质进行对比分析，确定COD、BOD5、TN和TP为本项目的重点控制指标。针对本项目脱氮除磷要求较高的特点，二级生物处理工艺选用UCT，通过往缺氧池投加碳源和改变传统A2O的回流方式，最大程度地发挥生物脱氮除磷效果，降低深度处理中化学除磷药剂投加量。深度处理工艺选用技术成熟的高密度沉淀池，以进一步去除污水中的COD和TP。运行结果显示，各项出水指标均稳定达标。
Abstract:
The treatment scale of Baigou second wastewater treatment plant in Hebei Province is 3.5×104 m3/d, the raw water is municipal wastewater mixed with a small amount of industrial wastewater (ratio of 3∶1), and the effluent quality is required to meet the limit in the key control area specified in Discharge Standard of Water Pollutants for Daqing River Basin (DB 13/2795-2018). Through comparative analysis of the influent and effluent quality, COD, BOD5, TN and TP were determined as the key control indicators of this project. Due to the high requirement of nitrogen and phosphorus removal in this project, UCT was selected as the secondary biological treatment process. The performance of biological nitrogen and phosphorus removal was maximized and the dosage of chemical phosphorus removal agent in advanced treatment was reduced by adding carbon source to the anoxic tank and changing the reflux mode of traditional A2O. The mature technology of high density sedimentation tank was selected as the advanced treatment process to further remove COD and TP from wastewater. The operational results showed that all indicators were up to the discharge standard stably.

相似文献/References:

[1]杨巍,郑佳勇,李 亮,等.三级生物滤池工艺用于污水处理厂提标改造[J].中国给水排水,2022,38(24):87.
　YANGWei,ZHENGJia-yong,LI Liang,et al.Application of Three-stage Biofilter Process in Upgrading of a WWTP[J].China Water & Wastewater,2022,38(14):87.

更新日期/Last Update: 2023-07-17