高盐度氨氮废水处理实验研究  

Study on the treatment of ammonia nitrogen wastewater containing high salinity

作　　者：常亮 CHANG liang(Yonker Environmental Protection Co.,Ltd.,Changsha 410330,China)

机构地区：[1]永清环保股份有限公司,湖南长沙410330

出　　处：《应用化工》2019年第S02期314-317,共4页Applied Chemical Industry

摘　　要：采用新型高效氨氮脱除装置,对高盐度氨氮废水进行脱氮处理实验。研究脱氮剂投加量、温度及其pH、气水比等条件对废水中氨氮含量的影响。实验结果表明:此装置在脱氮剂投加量为10 mg/L、温度为50℃,pH为10.5,气水比为300∶1,反应时间为120 min的条件下,其氨氮去除率可达99.1%以上,且处理之后氨氮含量≤8.0 mg/L,达最新排放标准。A new highly efficient device of denitrification has been carried out in order to remove ammonia nitrogen from the high-salt and ammonia nitrogen wastewater.The influencing factors on the removal rate of ammonia nitrogen including the dosage of denitrification agent,reaction temperature,pH values and the flow rate of gas-water ratio were investigated.Experimental results showed that,ammonia removal efficiency higher than 99.1%when the reaction conditions were controlled as follows:the dosage of denitrification agent is 10 ppm,temperature is 50℃,pH value is 10.5,the gas-water ratio is 300∶1,reaction time is 120 min.The ammonia-nitrogen content was less than 8.0 mg/L,which could meet the latest emission standard.

关 键 词：高盐度 氨氮 脱氮剂 排放标准 

分 类 号：X703[环境科学与工程—环境工程]