次氯酸钙对石灰氮渣氨氮废水去除效果研究  

Study on Removal Effect of Calcium Hypochlorite on Ammonia Nitrogen Wastewater from Lime Nitrogen Residue

作　　者：艾金华 张梅 张砚弛 高曦 盛月慧 AI Jin-hua;ZHANG Mei;ZHANG Yan-chi;GAO Xi;SHENG Yue-hui(Suzhou Sentech Environmental Remediation Company Limited,Jiangsu Suzhou 215104;CQC Intime Testing Technology Co.,Ltd.,Jiangsu Suzhou 215104,China)

机构地区：[1]苏州中晟环境修复有限公司,江苏苏州215104 [2]中认英泰检测技术有限公司,江苏苏州215104

出　　处：《广州化工》2024年第11期116-118,共3页GuangZhou Chemical Industry

摘　　要：针对石灰氮渣氨氮废水,以次氯酸钙进行预处置,研究次氯酸钙添加量、pH值、处理时间对氨氮去除效果的影响。结果表明:(1)次氯酸钙在2.0 g·L-1时,氨氮的处理效果较好,可达53.70%。(2)pH值过低和过高对次氯酸钙去除氨氮均有不利影响,溶液pH控制在5~9为宜。(3)次氯酸钙对氨氮的去除在15 min即可达到较高水平,随着反应时间的增加,其对氨氮的去除影响不显著。Calcium hypochlorite was used to deal with ammonia-nitrogen wastewater from lime-nitrogen slag.The effects of calcium hypochlorite addition amount,pH value and treatment time on ammonia-nitrogen removal were studied.The results showed that when calcium hypochlorite was at 2.0 g·L^(-1),the treatment effect of ammonia nitrogen was better,which treatment effect reaching 53.70%.Too low pH and too high pH had adverse effects on the removal of ammonia nitrogen by calcium hypochlorite,and it was appropriate to control the solution pH between 5 and 9.The removal of ammonia nitrogen by calcium hypochlorite can reach a high level within 15 min.With the increase of reaction time,the effect of calcium hypochlorite on the removal of ammonia nitrogen was not significant.

关 键 词：次氯酸钙 石灰氮渣 氨氮 去除 

分 类 号：X53[环境科学与工程—环境工程]