PMS/Cu(II)/Cl体系氧化氨氮的效能与机理研究  

Study on the Efficiency and Mechanism of PMS/Cu(II)/Cl System for Oxidizing Ammonia Nitrogen

作　　者：曹建来 王白梅 Cao Jianlai;Wang Baimei(School of Environmental Science and Engineering,Zhejiang Gongshang University,Hangzhou,China;Sichuan Kezheng Testing Co.,Ltd.,Chengdu,China)

机构地区：[1]浙江工商大学环境科学与工程学院,浙江杭州 [2]四川科正检测有限公司,四川成都

出　　处：《科学技术创新》2025年第2期106-111,共6页Scientific and Technological Innovation

摘　　要：氨氮是水环境中的重要污染物,具有一定毒性,对生态健康和公共卫生造成威胁。本研究提出了PMS/Cu(II)/Cl工艺用于氨的去除,该工艺通过微量的Cu(II)催化PMS和活性氯高效产生自由基(HO·和Cl·),实现了氨的深度去除,且该过程遵循假一级动力学模型。典型影响因素表明:Cu(II)的浓度、活性氯浓度和PMS浓度是限制氨氧化的主要因素;温度和pH值会影响氨的去除效果,升高温度会促进氨的去除;碳酸盐碱度、腐殖酸和高浓度的溶解氧会抑制氨的去除效果。该工艺对地表水中的氨也具有很好的去除效果。本研究提供了一种有前景的深度去除氨氮技术。Ammonia nitrogen is an important pollutant in the water environment,with certain toxicity,posing a threat to ecological health and public health.This study proposes the PMS/Cu(II)/Cl process for ammonia removal,which efficiently generates free radicals(HO·and Cl·)by catalyzing PMS and active chlorine with trace amounts of Cu(II),achieving deep ammonia removal.The process follows a pseudo first order kinetic model.Typical influencing factors indicate that the concentration of Cu(II),active chlorine concentration,and PMS concentration are the main limiting factors for ammonia oxidation;Temperature and pH value will affect the removal efficiency of ammonia,and increasing temperature will promote the removal of ammonia;Carbonate alkalinity,humic acid,and high concentrations of dissolved oxygen can inhibit the removal efficiency of ammonia.This process also has a good removal effect on ammonia in surface water.This study provides a promising technology for deep removal of ammonia nitrogen.

关 键 词：氨氮 深度处理 高级氧化 氨氮氧化 

分 类 号：X52[环境科学与工程—环境工程]