發(fā)布時間：2018-04-19 08:59

  本文選題：鄰苯二甲酸二甲酯(DMP) + 微波(MW)��； 參考：《青島理工大學》2015年碩士論文

【摘要】：鄰苯二甲酸二甲酯(Dimethyl Phthalate,DMP)被廣泛地用作塑膠制品添加劑來提高塑料制品的塑性和強度,可擴散到環(huán)境中造成對水環(huán)境、大氣環(huán)境及土壤的污染。此外研究表明,DMP是一種重要的內分泌干擾素,可以導致機體生殖系統(tǒng)異常,免疫機能下降,引發(fā)癌癥等環(huán)境疾病�；诖�,本課題開展微波協(xié)同F(xiàn)enton試劑氧化降解DMP及協(xié)同機理的研究。首先研究了微波降解DMP反應,然后研究了Fenton降解DMP反應,考察了Fe2+濃度、Fe2+與H2O2投量比、反應液初始p H、Fenton試劑投加量以及DMP初始濃度對Fenton試劑降解DMP效率的影響.并簡要分析了Fenton/類Fenton體系在UV作用下對DMP的降解效果,最后以一級反應動力學模型建立Fenton降解DMP表觀動力學方程。最后研究了微波協(xié)同F(xiàn)enton降解DMP反應,考察了Fe2+濃度、H2O2濃度、反應液p H、DMP初始濃度及微波功率對DMP降解效率的影響,在此基礎上分別引入Fe2+、Cu2+等重金屬離子對比性分析了微波-Fenton試劑對DMP的降解效率。通過體系中Fe2+、H2O2濃度及p H變化分析了微波-Fenton協(xié)同作用機理,根據DMP降解色譜圖對降解過程也做了探索性研究。結果表明,當DMP初始濃度為2 mg/L、Fe2+濃度為2.5 mg/L、Fe2+與H2O2投量比為1:10、溶液初始p H為3、反應30 min,Fenton試劑降解DMP的效率可達96.08%。Fenton/類Fenton體系在UV作用下降解DMP效率較無UV作用相比提高率超過30%。Fenton降解DMP反應表觀動力學方程為lnc0/c=f(c0,n,p H)=2.068c0-0.7928n-1.4157(p H)0.6336,同時結果表明,當Fe2+濃度為2 mg/L、H2O2濃度20 mg/L、反應液初始p H為3、微波功率為385 W、DMP初始濃度為1mg/L、反應30 min時,微波-Fenton降解DMP效率可達96.21%;降解反應較好的遵循一級反應動力學方程;微波場中Fe2+與Fe3+間的快速循環(huán)是微波協(xié)同F(xiàn)enton降解DMP的主要原因。
[Abstract]:Dimethyl dimethyl phthalate (Dimethyl Phthalate DMP) is widely used as a plastic additive to improve the plasticity and strength of plastic products, which can spread to the environment and cause pollution to water environment, atmosphere environment and soil.In addition, DMP is an important endocrine interferon, which can lead to abnormal reproductive system, decreased immune function and lead to cancer and other environmental diseases.Based on this, microwave synergistic Fenton reagent oxidation degradation of DMP and synergistic mechanism were carried out.The microwave degradation of DMP was studied, then the degradation of DMP by Fenton was studied. The effects of the ratio of Fe2 concentration of Fe _ 2 to H2O2, the initial dosage of p-H _ (+) Fenton reagent and the initial concentration of DMP on the DMP degradation efficiency of Fenton reagent were investigated.The degradation effect of Fenton/ Fenton system on DMP under UV irradiation was briefly analyzed. Finally, the apparent kinetics equation of Fenton degradation of DMP was established by the first-order reaction kinetics model.Finally, the effects of microwave and Fenton on the degradation of DMP were studied. The effects of Fe2 concentration and H2O2 concentration, initial concentration of reaction solution and microwave power on the degradation efficiency of DMP were investigated.On this basis, the degradation efficiency of DMP by microwave-Fenton reagent was analyzed by introducing heavy metal ions such as Fe2 and Cu2 respectively.The synergistic mechanism of microwave-Fenton was analyzed by the concentration of Fe2 and H _ 2O _ 2 in the system and the degradation process was also studied according to the DMP degradation chromatogram.The results show thatWhen the initial concentration of DMP is 2 mg / L Fenton 2, the ratio of Fe 2 to H2O2 is 1: 10, and the initial pH of solution is 3, the efficiency of DMP degradation by Fenton reagent in 30 min reaction is higher than that of DMP degradation in 96.08%.Fenton/ Fenton system under UV irradiation.The apparent kinetic equation of 30%.Fenton degradation of DMP is lnc0 / cnc0 / H)=2.068c0-0.7928n-1.4157(p H ~ (0.6336), and the results show that,When the concentration of Fe2 is 20 mg / L, the initial pH of the reaction solution is 3, the microwave power is 385W / L, the initial concentration of DMP is 1 mg / L, and the reaction time is 30 min, the degradation efficiency of DMP by microwave Fenton can reach 96.21g / L, and the degradation reaction follows the first order reaction kinetics equation.The rapid cycle between Fe2 and Fe3 in microwave field is the main reason for DMP degradation by microwave synergistic Fenton.
【學位授予單位】：青島理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：X505

【參考文獻】

中國期刊全文數據庫 前10條

1 李梅;王翠彥;于小迪;崔建國;王洪波;;污水處理廠中鄰苯二甲酸酯類物質分布及去除特性研究[J];安全與環(huán)境學報;2014年05期

2 徐雪;王利軍;盧新衛(wèi);;咸陽市郊菜地土壤中鄰苯二甲酸酯(PAEs)污染研究[J];農業(yè)環(huán)境科學學報;2014年10期

3 苗肖君;王楠楠;趙姍姍;潘維倩;王鵬;;微波輔助Cu(Ⅱ)-Fenton體系催化氧化處理對硝基苯酚廢水[J];環(huán)境工程學報;2014年06期

4 于云江;葉昊;楊彥;趙潔;;太湖流域(蘇南地區(qū))經口介質中鄰苯二甲酸酯的生物有效性及人體暴露評估[J];環(huán)境化學;2014年02期

5 蔣紹階;王秉鈞;仇洪建;;活性炭工藝去除鄰苯二甲酸酯的中試研究[J];中國給水排水;2014年03期

6 汪軍;駱永明;馬文亭;李麗娜;朱燁;滕應;;典型設施農業(yè)土壤酞酸酯污染特征及其健康風險[J];中國環(huán)境科學;2013年12期

7 蔣麗佳;許秋瑾;梁存珍;李麗;;江蘇某縣地下水鄰苯二甲酸酯類的檢測與風險評價[J];中國環(huán)境監(jiān)測;2013年04期

8 王夫美;陳麗;焦姣;張雷波;姬亞芹;白志鵬;張利文;孫增榮;;住宅室內降塵中鄰苯二甲酸酯污染特征及暴露評價[J];中國環(huán)境科學;2012年05期

9 王夫美;陳麗;焦姣;張雷波;姬亞芹;白志鵬;張利文;孫增榮;張星梅;;冬季天津家庭室內空氣顆粒物中鄰苯二甲酸酯污染研究[J];環(huán)境科學;2012年05期

10 趙玲;劉敏;尹平河;吳楚萍;金波;;鄰苯二甲酸二甲酯的光催化降解機理[J];環(huán)境工程學報;2011年06期

中國碩士學位論文全文數據庫 前1條

1 林芳;海洋沉積物中鄰苯二甲酸酯類化合物的測定方法研究及應用[D];廈門大學;2009年

，

本文編號：1772436