气体苯系物污染治理方法研究进展  

Research Progress in the Treatment Method of Atmospheric Benzene Series Pollution

作　　者：张宇帆 晋日亚 乔怡娜 贺增弟 冯星桥 ZHANG Yu-fan;JIN Ri-ya;QIAO Yi-na;HE Zeng-di;FENG Xing-qiao(School of Environmental and Safety Engineering, North University of China, Taiyuan 030051, China)

机构地区：[1]中北大学环境与安全工程学院,山西太原030051

出　　处：《中北大学学报（自然科学版）》2021年第6期530-541,共12页Journal of North University of China(Natural Science Edition)

摘　　要：苯系物(BTEX)是苯及其衍生物的总称,代表化合物包括苯、甲苯、乙苯、二甲苯等,其具有神经毒性、遗传毒性和致癌性,会造成环境污染和危害人体健康,苯系物的广泛应用已经使其成为危害大气环境的主要污染物之一,因此对大气苯系物污染的治理也越发重要.本文对气体苯系物处理的两种方法回收法和消除法的研究现状进行了综述,回收法包括吸收法、吸附法、冷凝法、膜分离法等,消除法包括(热)催化氧化法、生物处理法、低温等离子和光催化氧化法等,主要从原理、应用及优缺点等方面对这些方法进行了分析和对比,并对多种技术联合处理苯系物的方法做出研究展望.在目前的技术中,吸附法和催化氧化法是最受欢迎的,同时也是最具发展前景的,但对吸附法和催化氧化法还需要进一步探索有效的双功能吸附-催化剂,以及现实条件下与废气排放系统的兼容性问题.Benzene series(BTEX)is the general name of benzene and its derivatives,the representative compounds include benzene,toluene,ethylbenzene and xylene.Benzene series has neurotoxicity,genetic toxicity and carcinogenicity,which is harmful to human health and can pollute the environment.It has become one of the main pollutant in the atmosphere with the wide application of benzene series,so the control of atmospheric benzene series pollution is more important.We summarized the research state of recovery method and elimination method used in the treatment of gaseous benzene series.Recovery method included absorbent method,absorption method,condensation method and membrane separation method,etc.Elimination method included(thermal)catalytic oxidation method,biological treatment method,low-temperature plasma method and photocatalytic oxidation method,etc.All the method was analyzed and compared from principles,applications,advantages and disadvantages,and the method combining multiple technologies to treat benzene series was presented.Among the current technologies,adsorption method and catalytic oxidation method are the most popular and the most promising.However,in the future,adsorption method and catalytic oxidation method still need to further explore effective bifunctional adsorption catalyst,and their compatibility with exhaust emission system under realistic conditions needs to be further explored.

关 键 词：苯系物 污染治理 吸附法 光催化法 (热)催化氧化法 

分 类 号：X701[环境科学与工程—环境工程]