摘要
为了有效降低市政污水厂反渗透浓水中的有机物、总磷和总氮浓度,并验证生化组合工艺的稳定性,采用中试规模反硝化生物膜反应器,结合化学除磷、活性炭吸附技术,对市政污水厂深度处理过程中产生的反渗透浓水进行处理效果研究。结果表明:反硝化生物膜系统对总氮(TN)的平均去除率为80%,化学除磷可以去除95%以上的总磷(TP),活性炭吸附对化学需氧量(COD)的平均去除率为60%,组合工艺出水水质满足《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A出水标准;再经过近50 d的运行,处理效果良好且运行稳定。
In order to effectively reduce the concentration of organic matter,total phosphorus and total nitrogen in the reverse osmosis concentrated water of municipal sewage treatment plants and verify the stability of the biochemical combination process,a pilot scale denitrification biofilm reactor was used,which combined with chemical removal of phosphorus and activated carbon adsorption technology.Results on the treatment effect of reverse osmosis concentrated water produced during the advanced treatment of municipal sewage treatment plants,the results showed that the denitrification biofilm system could have a average effect of 80%on TN,chemical removal of phosphorus could remove more than 95%of TP,and activated carbon adsorption could be reduced COD by 60%on average.The effluent of the combined process could meet the first-class A standard of the Discharge standard of pollutants for municipal wastewater treatment plant(GB 18918—2002),after nearly 50 days of operation,the treatment effect was found to be good and stable.
作者
方正
柏昕然
王少坡
陈凡阵
李诚
Fang Zheng;Bai Xinran;Wang Shaopo;Chen Fanzhen;Li Cheng(Tianjin Huabo Water Co.,Ltd.,Tianjin 300040,China;Tianjin Chengjian University,Tianjin 300384,China)
出处
《供水技术》
2020年第6期32-36,共5页
Water Technology
关键词
反渗透浓水
反硝化生物膜系统
化学法除磷
活性炭吸附
臭氧氧化
reverse osmosis concentrated water
denitrifying biofilm system
chemical removal of phosphorus
activated carbon adsorption
ozone oxidation
