活性炭吸附法在挥发性有机物治理中的应用研究进展

Application progresses in the treatment of volatile organic compounds by adsorption on activated carbon

环境中挥发性有机物(VOCs)来源广泛,如不加以控治,不仅造成资源的极大浪费,而且严重污染环境,对人类健康带来危害。活性炭因其价格较低廉、制作工艺方便、吸附容量大、容易脱附再生,而且去除率高等优点已成为VOCs治理中优良的吸附剂。介绍了VOCs的定义、来源,对比了吸附法与VOCs处理主要技术的优缺点,阐述了影响活性炭吸附治理VOCs的三大主要因素,以及活性炭表面改性对VOCs吸附治理的研究现状与进展,对活性炭吸附法在VOCs治理发展方向作了展望。

VOCs(volatile organic compounds)in the environment come from various sources.It will not only cause a great waste of resources,but also seriously pollute the environment and bring harm to human health if not controlled.Activated carbon has become an excellent adsorbent in VOCs treatment because of its low price,convenient manufacturing process,large adsorption capacity,easy desorption and regeneration and high removal rate.Based on the introduction of the definitions and sources of VOCs,the advantages and disadvantages of adsorption method and other VOCs treatment technologies were compared,the three main factors affecting the VOCs treatment by activated carbon adsorption method were reviewed,the research status and progress of VOCs treatment by surface modification of activated carbon were summarized,and the development direction of activated carbon adsorption method in VOCs treatment was prospected.