磁环境下Fenton试剂处理水中腐植酸的试验研究  

Mechanism of Humic Acid Treatment by Fenton Reagent in Magnetic Environment

作　　者：王青 蔡婧 赵星辰 池港 李磊 WANG Qing;CAI Jing;ZHAO Xingchen;CHI Gang;LI Lei(l.College of Environmental Science and Engineering,Nanjing Tech University,Nanjing 211816,China;Jiangsu Key Laboratory of Industrial Water-conservation ＆ Emission Reduction,Nanjing 211816,China)

机构地区：[1]南京工业大学环境科学与工程学院,江苏南京211816 [2]江苏省工业节水减排重点实验室,江苏南京211816

出　　处：《安全与环境工程》2018年第6期30-35,共6页Safety and Environmental Engineering

基　　金：国家自然科学基金项目(21507060)

摘　　要：通过试验研究了磁环境下Fenton试剂的氧化/混凝作用对溶液中腐植酸的去除效果以及不同磁环境强度和Fenton试剂的反应条件对腐植酸溶液中各项指标的影响。结果表明:磁环境下Fenton试剂的氧化/混凝作用不仅与腐植酸溶液的pH值有关,而且其混凝作用受氧化作用的影响,并与氧化作用变化趋势相反;磁环境下Fenton试剂的混凝/氧化作用均优于无磁环境;在磁感应强度为130mT、pH值为8～11、反应时间为45min、Fe^(2+)投加量为3mg的反应条件下,Fenton试剂对100mL含1mg/L腐植酸溶液中的腐植酸去除率达100%;一定pH值范围内,Fenton试剂的混凝效果随溶液碱性的增大而增强,且随Fe^(2+)投加量的增大而增强,其对溶液中腐植酸的处理效果在反应时间为45min时趋于稳定。This study investigates the oxidation and coagulation of humic acid in simulated wastewater by Fenton reagent in magnetic environment. The results show that oxidation coagulation of Fenton reagent in magnetic envi ronment is affected by pH of the humic acid, and its coagulation is influenced by oxidation, contrary to the oxidation tendency. Both coagulation and oxidation in the magnetic-Fenton are better than those in the nonmagnetic environ ment. When the magnetic induction intensity is 130 mT, pH is 8-11, t 45 min, dosage of Fe2＋ is 3 mg, the re moval rate of 100 mL humic acid of lmg/L reaches 100%. Within a certain pH range, the coagulation effect increa ses with the increase of alkaline and the dosage of Fe2＋ ,and the reaction effect tends to he stable in 45 min.

关 键 词：FENTON试剂 磁环境 腐植酸 氧化作用 混凝作用 试验研究 

分 类 号：X52[环境科学与工程—环境工程]