净水技术2024，Vol.43Issue(6)：120-126,7.DOI:10.15890/j.cnki.jsjs.2024.06.014
污水处理厂反硝化深床滤池跌水复氧控制措施的工程实践
Engineering Practice of Waterfall Reoxygenation Controll in Deep-Bed Denitrification Filter in WWTP
张鑫 1高信刚 1方萍 2米松 1高尧2
作者信息
- 1. 北京恩菲环保股份有限公司,北京 100038
- 2. 涿州中设环保有限公司,河北涿州 072750
- 折叠
摘要
Abstract
Deep-bed denitrification filters are generally open-air tanks.During the process of wastewater falling,full contact with the atmosphere could increase the dissolved oxygen in the filter,which is a major cause of low carbon source utilization in deep-bed denitrification filters.A wastewater treatment plant(WWTP)in the Daqing River was selected as the research object to carry out an engineering study on the control of waterfall reoxygenation in a deep-bed denitrification filter.By detecting changes in dissolved oxygen,water temperature,and carbon source utilization efficiency in deep-bed denitrification filters,it was found that dissolved oxygen in deep-bed denitrification filters was at a high value throughout the year,and the amount of dissolved oxygen and carbon source added in summer was lower than that in winter.Through the engineering transformation practice of capping and sealing the top of deep-bed denitrification filter to control reaeration,the winter operation results showed that the well sealed capping measures could effectively control the waterfall reoxygenation of the filter,and the dissolved oxygen in the upper influent of the filter was reduced from 8.90 mg/L to 4.80 mg/L,with a certain thermal insulation effect.During the winter operation of the WWTP,the carbon source dosage was reduced from 191 mg/L to 170 mg/L.On average,23.68 mg/L of carbon source was required for every 1 mg/L of total nitrogen removed,and the carbon source utilization efficiency was improved by about 10％.关键词
跌水复氧/反硝化深床滤池/碳源消耗/复氧控制/反硝化能力Key words
waterfall reoxygenation/deep-bed denitrification filter(DBDF)/carbon source consumption/reoxygenation control/denitrification capacity分类
土木建筑引用本文复制引用
张鑫,高信刚,方萍,米松,高尧..污水处理厂反硝化深床滤池跌水复氧控制措施的工程实践[J].净水技术,2024,43(6):120-126,7.
