| Fenton氧化去除制药企业活性污泥中AOX的效果研究 |
| |
| 引用本文： | 陈思,徐灿灿,刘锐,李国华,陈吕军,郑炜.Fenton氧化去除制药企业活性污泥中AOX的效果研究[J].环境科学,2016,37(7):2625-2631. |
| |
| 作者姓名： | 陈思 徐灿灿 刘锐 李国华 陈吕军 郑炜 |
| |
| 作者单位： | 浙江工业大学化学工程学院, 杭州 310014;浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006,浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006,浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006,浙江工业大学化学工程学院, 杭州 310014,浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006;清华大学环境学院, 北京 100084,浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 |
| |
| 基金项目： | 国家高技术研究发展计划(863)项目(2013AA06A305);浙江省环保科研计划项目(2013B006);南湖区科技计划项目 (2015QS01);浙江省科技计划项目(2013C31107) |
| |
| 摘 要： | 用Fenton氧化处理合成制药企业活性污泥混合液,考察了不同Fe~(2+)、H_2O_2投加量和不同反应时间下污泥与上清液中AOX(可吸附有机卤代物)的去除效果,优化了反应条件,探讨了氧化机制.结果表明,Fenton氧化的最佳条件为H_2O_2投加量0.90 mol·L~(-1),Fe~(2+)投加量0.045 mol·L~(-1)物质的量比为:n(Fe~(2+))∶n(H_2O_2)=1∶20],反应2 h,污泥和上清液中AOX可分别去除70.7%和78.5%.GC-MS分析结果显示,污泥中含有11种有机卤代物,Fenton氧化后有8种不再检出;3种仍有检出,但浓度有所降低,去除率约为40%~50%.与此同时,污泥中对二甲苯、邻苯二甲酸二异丁酯等非有机卤代物类有毒有害有机物也得到有效去除.
|
| 关 键 词： | AOX Fenton 活性污泥 制药业 有机污染物 |
| 收稿时间： | 2015/11/15 0:00:00 |
| 修稿时间： | 2/7/2016 12:00:00 AM |
Removal of AOX in Activated Sludge of a Chemical Pharmaceutical Industry with Fenton Oxidation |
| |
| CHEN Si,XU Can-can,LIU Rui,LI Guo-hu,CHEN L&#;-jun and ZHENG Wei.Removal of AOX in Activated Sludge of a Chemical Pharmaceutical Industry with Fenton Oxidation[J].Chinese Journal of Environmental Science,2016,37(7):2625-2631. |
| |
| Authors: | CHEN Si XU Can-can LIU Rui LI Guo-hu CHEN L&#;-jun and ZHENG Wei |
| |
| Institution: | School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Ecological Environment, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China,Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Ecological Environment, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China,Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Ecological Environment, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China,School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China,Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Ecological Environment, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China;School of Environment, Tsinghua University, Beijing 100084, China and Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Ecological Environment, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China |
| |
| Abstract: | This study aimed to remove AOX (adsorbable organic halogens) with Fenton oxidation from activated sludge in a chemical pharmaceutical industry. The influences of H2O2 dosage, Fe2+ dosage and reaction time were investigated, based on which the reaction conditions for AOX removal were optimized, and the reaction mechanism was discussed. The optimized reaction conditions were as follows:0.90 mol·L-1 of H2O2, 0.045 mol·L-1 of Fe2+n (Fe2+):n (H2O2) of 1:20] and reaction time of 2 h. Under the optimized conditions, 70.7% of AOX in the sludge and 78.5% of AOX in the supernatant were removed. GC-MS analysis revealed that eleven organic halides were detectable in the original sludge. After Fenton reaction, only three organic halides were detectable, and their peak areas were reduced by 40%-50%. Toxic and hazardous non-AOX organic matters such as xylene, diisobutyl phthalate were also effectively removed. |
| |
| Keywords: | adsorbable organic halogens (AOX) Fenton activated sludge pharmaceutical industry organic pollutants |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
