Fenton氧化-沸石吸附联合处理化学镀镍废水  

Treatment of Electroless Nickel Plating Wastewater by the Combined Processes of Fenton Oxidation and Clinoptilolite Adsorption

作　　者：张洪亮[1] 王棉棉[2] 吕斯濠[2] 范洪波[2] 张燕厚 程洁红 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215009 [2]东莞理工学院化学与环境工程学院,广东东莞523808 [3]广东威迪科技股份有限公司,广东东莞523928 [4]江苏理工学院化学与环境工程学院,江苏常州213001

出　　处：《电镀与环保》2017年第6期61-65,共5页Electroplating & Pollution Control

基　　金：东莞市产学研合作项目(2013509108208);国家水体污染控制与治理科技重大专项(2012ZX07206-004)

摘　　要：以Ni^(2+)、总磷和氨氮为考察对象,采用Fenton氧化和沸石吸附联合处理化学镀镍废水。探讨了Fenton破络及协同氧化非正磷酸盐时,H_2O_2的质量浓度、m(Fe^(2+))∶m(H_2O_2)、初始pH值对Ni^(2+)和总磷去除率的影响。另外,研究了沸石吸附氨氮时,沸石量、吸附时间、吸附pH值对氨氮去除率的影响。结果表明:当H_2O_2的质量浓度为6.66g/L、m(Fe^(2+))∶m(H_2O_2)为0.06、初始pH值为3时,破络完全,非正磷酸盐转化率为99.45%;同时,Ni^(2+)和总磷的去除率分别达到99.72%和91.88%。当沸石量为8g/100mL、pH值为7、反应时间为60min时,氨氮的去除率为86.30%。Ni^2＋, total phosphorus and ammonia nitrogen were taken as investigation objects, electroless nickel plating wastewater was treated by the combined processes of Fenton oxidation and clinoptilolite adsorption. The effects of mass concentration of H2O2, ratio of Fe^2＋ to H2O2, initial pH value on the removal rate of Ni^2＋ and total phosphorus were investigated during the decomplexation process and non-orthophosphate conversion by Fenton oxidation. Furthermore, the effects of concentration of clinoptilolite, adsorption time and initial pH value on the removal rate of ammonia nitrogen were studied during the clinoptilolite adsorption process. Results showed that, when mass concentration of H2O2, was 6.66 g/L, ratio of Fe^2＋ to H2O2 was 0.06, initial pH value was 3, the decomplexation process was completed and the conversion rate of non- orthophosphate reached up to 99.45%. Meanwhile, the removing rate of nickel and total phosphorus reached up to 99.72% and 91.88% respectively. When concentration of clinoptilolite was 8 g/100 mL, pH value was 7, reaction time was 60 rain, the removal rate of ammonia nitrogen reached up to 86.30%.

关 键 词：化学镀镍 废水 FENTON氧化 斜发沸石 吸附 

分 类 号：X703.1[环境科学与工程—环境工程]