过硫酸钾-活性炭协同强化微波降解腐植酸  

Synergetic Degradation Efficiency of Humic Acid by Microwave/K_2S_2O_8/Granular Activated Carbon

作　　者：杨娟[1] 张先炳[1] 丁昭霞[2] 麦正军 

机构地区：[1]重庆交通大学河海学院,400074 [2]后勤工程学院国防建筑规划与环境工程系,重庆401311

出　　处：《水处理技术》2018年第1期55-60,共6页Technology of Water Treatment

基　　金：重庆市研究生科研创新项目(CYS17204);重庆市教委科学技术研究项目(KJ1600527)

摘　　要：研究了微波-过硫酸钾-活性炭工艺对腐植酸的去除效能,分析了过硫酸钾投加量、腐植酸初始含量、微波功率、p H以及活性炭用量对于腐植酸的降解效果的影响,验证了活性炭、过硫酸钾协同强化微波降解腐植酸(HA)的优越性。结果表明,微波-过硫酸钾-活性炭工艺在处理初始质量浓度为10 mg/L的HA时效果显著,90 s后去除率达到74%,远高于单独硫酸钾氧化、活性炭催化微波和单独微波辐射。微波-过硫酸钾-活性炭工艺对于HA降解符合一级动力学,表观反应速率常数达到0.016 4 s^(-1)。Synergefic degradation efficiency of Humic Acid （HA） by micmwave/K2S2O8/granular activated carbon （GAC） combined system was investigated. The effects of K2S2O8 dosage, initial content of HA, microwave power, pH and GAC dosage on HA degradation efficiency were studied. And the synergistic effect of GAC and K2S2O8 on the degradation efficiency of HA by microwave was further verified. The results showed that, HA removed could reach 74% when treated by the combination system ofmicrowave/K2S2O8/GAC with 90 s （initial mass concentration of HA was 10 mg/L）. This removal rate was higher than that treated by K2S2O8, microwave or GAC catalyzed microwave. In addition, HA degradation followed first order kinetics, and the reaction rate constant was 0.016 4 s-1.

关 键 词：微波 过硫酸钾 活性炭 协同降解 腐植酸 

分 类 号：X703.1[环境科学与工程—环境工程]