水体/沉积物中蒽的生物降解  

THE BIODEGRADATION OF ANTHRACENE IN WATER AND SEDIMENT

作　　者：强婧[1] 尹华[1] 彭辉[1] 叶锦韶[1] 秦华明[1] 张娜[1] 何宝燕[1] 

机构地区：[1]暨南大学环境工程系,广州510632

出　　处：《环境化学》2009年第4期502-505,共4页Environmental Chemistry

基　　金：国家自然科学基金资助项目(50578070;50778081)

摘　　要：对水体/沉积物中蒽的降解情况进行了研究.结果表明,往天然水体中添加沉积物对蒽的生物降解有较明显的促进作用.沉积物能够吸附一定量的蒽,从而抑制其自然挥发.体系中沉积物含量为15g.l-1时,吸附效果最为明显,在蒽初始浓度为10mg.l-1的情况下,5d后残留率达100.00%.沉积物本身存在的土著微生物对蒽有一定的降解能力,沉积物含量为15g.l-1时,5d后蒽降解率最高,为49.29%.往15g.l-1沉积物中接种蒽高效降解菌烟曲霉A10后,蒽降解率达88.92%,表明往污染环境中外加微生物能够明显改善污染物的降解情况.The biodegradation of anthracene in water and sediment was studied. The results showed that addition of sediment to natural water could obviously promote biodegradation of anthracene. Sediment could adsorb certain amount of anthracene, restraining its volatilization. This adsorption was most obvious when the content of sediment was 15g .l^-1and the residual rate of anthracene reached 100. 00% after 5d while its initial concentration was 10mg.l^-1. The indigenous microorganisms existed in sediment had some ability to degrade anthracene and the degradation rate reached the highest, which was 49.29% 5d later when the content of sediment was 15g. l^-1. The degradation rate went up to 88.92% with inoculum of Aspergillus fumigatus A10. This indicated that the degradation situation could be improved by addition of adscititious microorganism.

关 键 词：蒽 沉积物 生物降解 

分 类 号：X52[环境科学与工程—环境工程]