次氯酸钠—磁混凝应急处理高速服务区污水研究  

Research on emergency treatment of sewage in expressway service areas using sodium hypochlorite and magnetic coagulation

作　　者：姚宁波 陈鹏 张江灵 黄青飞 Yao Ningbo;Chen Peng;Zhang Jiangling;Huang Qingfei(Anhui Shunyu Water Affairs Co.,Ltd.,Hefei 231131)

机构地区：[1]安徽舜禹水务股份有限公司,合肥231131

出　　处：《环保科技》2024年第3期28-32,共5页Environmental Protection and Technology

摘　　要：高速服务区污水水量波动大,超量污水易导致常规生化处理工艺处理效果差或污水外溢风险,需考虑应急处理。试验采用次氯酸钠—磁混凝工艺应急处理高速服务区污水,当进水COD为186.37 mg/L,NH_(3)-N为24.8 mg/L,TP为3.03 mg/L,TN为27.1 mg/L,次氯酸钠、PAC和PAM投加量分别为215 mg/L、100 mg/L、1 mg/L时,出水COD、NH_(3)-N、TP、TN分别为97.56 mg/L、1.43 mg/L、0.38 mg/L、4.27 mg/L,出水NH_(3)-N、TP、TN达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准;该工艺对COD的去除率为47.65%,出水COD满足《污水综合排放标准》(GB 8978-1996)表4中一级标准,若要进一步降低出水的COD,可配合活性炭吸附去除。The sewage volume in the expressway service area fluctuates greatly,and excessive sewage can easily lead to poor treatment efficiency of conventional biochemical treatment processes or increase the risk of sewage overflow.Emergency treatment needs to be considered.The experiment used sodium hypochlorite and magnetic coagulation technology to treat emergency sewage in expressway service areas.When the influent COD was 186.37 mg/L,NH_(3)-N was 24.8 mg/L,TP was 3.03 mg/L,TN was 27.1 mg/L,and the dosages of sodium hypochlorite,PAC,and PAM were 215 mg/L,100 mg/L,and 1 mg/L,respectively,the effluent COD,NH_(3)-N,TP,and TN were 97.56 mg/L,1.43 mg/L,0.38 mg/L,and 4.27 mg/L,respectively.The effluent NH_(3)-N,TP,and TN met the first level A standard of the Urban Wastewater Treatment Plant Pollutant Discharge Standard(GB 18918-2002);the removal rate of COD by this process is 47.65%,and the effluent COD meets the first level standard in Table 4 of the Comprehensive Wastewater Discharge Standard(GB 8978-1996).To further reduce the effluent COD,activated carbon adsorption can be used.

关 键 词：高速服务区污水 应急处理 次氯酸钠 磁混凝 

分 类 号：X703[环境科学与工程—环境工程]