摘要
研究了土壤结合态稠环芳烃的生物降解过程。结果表明 ,微生物能够降解土壤中的稠环芳香烃化合物 ,稠环芳烃与土壤结合是妨碍其生物降解的主要因素 ,表面活性剂能够显著提高结合态的稠环芳烃被降解的比例。在30d左右时间内 ,土壤中稠环芳烃可以被降解至一个稳定水平。
This paper investigated the microbial degradation of polyaromatic compounds present in aged soils. Four tests were conducted in flasks including slurry, with surfactants added, with bacteria added, and with bacteria and surfactant simultaneously added. The results showed that polyaromatic compounds can be degraded microbially. Surfactants added transferred polyaromatic compounds from bound state to free state, enhancing its bioavailability greatly. It was suspected that humic substances play a critical role in binding with polyaromatic compounds.
出处
《农业环境保护》
CSCD
北大核心
2001年第1期15-18,共4页
Agro-Environmental Protection
基金
美国国家环保局资助
