生物炭对多环芳烃的吸附研究进展

摘要

Polycyclic aromatic hydrocarbons (PAHs) are a kind of persistent organic pollutants, which is harmful to ecology environment and human health. The problem of PAH pollution has captured public attention, including the absorption of PAHs by biochar. Biochar is a carbon-rich porous material formed by the process of the pyrogenic decomposition of biomass under aerobic or anaerobic condition. This has become research hotspot of present environment field. The preparation and properties of biochar, the mechanism and the status of research, the new type biochar and the application research about the absorption of PAHs by it are illustrated. Meanwhile the disadvantage of current research and the probable research direction in the future are also indicated.%多环芳烃是一类持久性有机污染物,其对生态环境和人类健康均有很大的危害.解决多环芳烃污染问题已引起人们的广泛关注,包括生物炭对多环芳烃的吸附.生物炭是生物质在缺氧或限氧条件下热解后形成的一种富炭多孔材料,已成为目前环境领域的研究热点.文章主要综述了生物炭的制备和特性,生物炭吸附多环芳烃的机理和研究现状,新型生物炭及其在多环芳烃吸附方面的应用研究.同时,指出了目前研究的不足,并提出了未来可能的研究方向.