活性炭再生技术研究进展

Research Progress on Regeneration of Active Carbon

对活性炭的再生方法进行介绍,详细阐述目前大规模使用的传统的热再生法、生物再生法、电化学再生法、超临界流体再生法、超声波再生法、微波辐射再生法和TiO2光催化再生法等方法。文章指出各种再生方法存在的优缺点,特别指出,微波辐射再生法作为一种高效、节能、省时的再生技术,具有巨大的发展潜力和优势。另一方面,文章对各种再生方法的机制也进行较详细地阐述,同时还介绍活性炭再生的评价方法:穿透曲线法、吸附等温线法、再吸附法。

Activated carbons have been extensively used as adsorbents in environment. Because it was expensive, it is not economical to use only once before deserted. The regeneration of the activated carbon could eliminate pollution,low the expense, make the resource useful. The activated carbon regeneration technologies and mechanism were system introduced and discussed in the paper, such as thermal destruction, which was a traditional method but widely applicant in industry, microorganism method, electrochemical method, supercritical fluid method, microwave method, which was based on thermal destruction, ultrasonic treatment and TiO2 photo catalytic regeneration, etc. On the other hand, the advantage and disadvantage of regeneration methods are introduced and discussed in this paper,at the same time, the paper points out that microwave method is highly efficiency, short time expense,it will be a potential method for industry. On the other hand, the evaluating methods for activated carbon regeneration were introduced, such as breakthrough profile, adsorption isotherm and standard reload experiment.