基于响应面法优化混凝去除氨氮工艺的研究  

Optimization of Coagulation Process for Removing Ammonia Nitrogen Based on Response Surface Method

作　　者：李诗莹 张成[2] 王纯 翟永杰 张建辉 LI Shi-ying;ZHANG-Cheng;WANG-Chun;ZHAI Yong-jie;ZHANG Jian-hui(School of Chemistry and Environmental Engineering,Hanjiang Normal University,Shiyan 442000,China;Yunyang Middle School,Shiyan 442000,China)

机构地区：[1]汉江师范学院化学与环境工程学院,湖北十堰442000 [2]十堰市郧阳中学,湖北十堰442000

出　　处：《汉江师范学院学报》2023年第3期32-35,共4页Journal of Hanjiang Normal University

基　　金：汉江师范学院2022年校级重点项目“新污染物对自养脱氮工艺的影响机制研究”(项目编号:XJ2022A01);汉江师范学院重点学科建设经费资助(生物学)。

摘　　要：随着社会经济飞速发展,化学工业类、石油类等行业的逐步壮大,人类频繁的生产活动加速了水环境恶化,废水中的氨氮会造成水体富营养化,危害水生生物.因此寻求高效经济的氨氮处理技术尤为重要.采用响应面法优化混凝沉淀,以氨氮废水的吸光度作为响应值,依据Box-Behnken中心组合试验设计并且建立数学模型,采用3因素3水平响应面分析,测定pH、混凝剂投加量和搅拌的时间对混凝沉淀的影响,探究氨氮去除的最佳混凝条件.结果表明在FeCl3,PAC,PAM三种混凝剂中,3%FeCl3的投加量为2mL/L,pH为8的情况下处理效果最好,去除率达61%.With the rapid development of social economy and chemical industry, the frequent human production activities accelerated the deterioration of water environment, and ammonia nitrogen in wastewater causes water eutrophication and harm aquatic life. Therefore, it is particularly important to seek efficient and economical treating technology to ammonia nitrogen. The response surface method was used to optimize coagulation and precipitation. The absorbance of ammonia nitrogen wastewater was taken as the response value. The mathematical model was designed and established according to Box-Behnken center combination test. The results showed that among the three kinds of coagulants FeCl3, PAC and PAM, the dosage of 3% FeCl3 was 2mL/L and pH was 8. The treating effect was the best, and the removal rate reached 61%.

关 键 词：响应面法 混凝 氨氮废水 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]