沿面放电等离子体降解水中邻苯二甲酸类物质的研究  

Degradation of phthalates by surface discharge plasma in aqueous solution

作　　者：曾小梅[1] 吴少帅[2] 文岳中[2] ZENG Xiaomei;WU Shaoshuai;WEN Yuezhong(Jinhua Polytechnic,Jinhua 321007,China;Zhejiang University,Hangzhou 310058,China)

机构地区：[1]金华职业技术学院,浙江金华321007 [2]浙江大学,浙江杭州310058

出　　处：《金华职业技术学院学报》2018年第6期75-79,共5页Journal of Jinhua Polytechnic

基　　金：浙江省2017级访问工程师校企合作项目资助;2015年金华市科技局项目(2015-3-054)

摘　　要：研究沿面放电等离子体处理水中邻苯二甲酸类物质的效果,以含有4-羟基邻苯二甲酸、4-甲基邻苯二甲酸及4-叔丁基邻苯二甲酸的模拟废水作为研究体系,考察电压、浓度、pH值对其降解的影响。结果表明:电压在220 V左右时降解效果达到最大值,浓度范围在50～500 mg/L间的3种邻苯二甲酸类物质均能获得快速降解,TOC去除率在10%～60%左右。同时,碱性条件有利于生成臭氧活性物质,能够有效加速邻苯二甲酸类物质的降解。沿面放电等离子体展现了对邻苯二甲酸类污染物便捷及高效的处理能力,为水中邻苯二甲酸类污染物的消除提供了新的方法。In order to prevent the health risk from the potential exposures to phthalates, the surface dielectric barrier discharge （SDBD） was applied for phthalates degradation in aqueous solution. The results showed that the phthalate derivatives such as 4-hydroxyphthalic acid, 4-methylphthalic acid and 4-tert-butylphthalic anhydride could be degraded efficiently in SDBD process with high removal efficiencies over 99% in 30 minutes under the voltage of 220 V, and its TOC removal rate was about 10- 60%. Meanwhile, the alkaline condition could promote the degradation of phthalates, due to the enhanced oxidation ability of ozone in the presence of OH-. Overall, the surface discharge plasma process shows convenient and efficient advantage on phthalates removal, thus providing a new strategy for the elimination of pollutants in aqueous solution.

关 键 词：邻苯二甲酸 沿面放电等离子体 废水 臭氧 

分 类 号：X703[环境科学与工程—环境工程]