摘要
metal-organic frameworks作为一种新型催化材料正成为环境领域的研究热点。选取MOFs中MIL-100(Fe)、MIL-100(Fe)@MIP活化过硫酸钠(PS)产生硫酸根自由基(SO4-·)深度处理造纸废水二级生化出水,研究常温下初始p H、催化剂用量和PS投加量等因素对废水化学需氧量(COD)去除率的影响,并采用响应曲面法分析多因素对COD氧化降解效果的影响。结果表明MOFs活化PS高级氧化体系深度处理造纸废水最佳的活化条件为PS/COD=12∶1、催化剂用量2 g/L、体系的p H=6,可以实现32%的COD去除率,响应曲面分析实验表明各影响因素对于降解效果的贡献顺序是PS投加量> p H> MIL-100(Fe)用量。
As a new catalytic material,MOFs is becoming a research hotspot in the field of the environment. In this study,MIL-100( Fe),MIL-100( Fe) @ MIP of MOFs and Fe2 +used to activate persulfate( PS) for the oxidation of the wastewater after secondary treatment was studied through batch experiments. The effect of initial p H,catalyst dosage and PS dosage on the degradation efficiency of wastewater were examined,also multiple factors in removing chemical oxygen demand( COD) from the effluent were evaluated using response surface methodology.The highest COD removal rate was 32%,obtaining under the optimum activation condition of the PS/COD = 12∶ 1 and 2 g/L catalyst dosage at pH = 6. The response surface methodology experiments showed that the order in COD removal efficiency was PS dosage > pH > MIL-100( Fe) dosage.
作者
谢全模
万金泉
马邕文
王艳
XIE Quan-muo;WAN Jin-quan;MA Yong-wen;WANG Yan(College of Environment and Energy,South China University of Technology,Guangzhou 510006,China;Dongguan Yiding Environmental Protection Engineering Co.,Ltd.,Dongguan 523000,China;Sina-Singapore International Joint Reasearch Institute,Guangzhou 510006,China)
出处
《科学技术与工程》
北大核心
2019年第28期406-410,共5页
Science Technology and Engineering
基金
国家自然科学基金(31570568,31670585)
广州市科技计划(201607010079,201607020007)资助
关键词
造纸废水
深度处理
MOFs活化
硫酸根自由基
响应曲面法
papermaking wastewater
deeply treatment
MOFs-activated
sulfate radical
the response surface methodology
