摘要
以具有致癌、致畸和致突变作用的苯并(a)芘(BaP)为目标污染物,利用多环芳烃高效将解菌-芽孢杆菌,研究了非离子型表面活性剂吐温80(TW-80)对BaP的增溶及生物降解过程的影响。结果表明:(1)通过TW-80促溶,BaP在水中的溶解度提高近20倍;(2)在BaP降解的过程中,TW-80亦能作为碳源被芽孢杆菌利用,不产生二次污染;(3)当BaP浓度为10 mg/L,TW-80浓度为500 mg/L,共代谢底物-琥珀酸钠为50 mg/L时,BaP及TW-80的降解效果最好;并且初步揭示了TW-80改变BaP的生物可利用性而促进其降解的微生物机理。
The study on the influence of surfactant TW-80 on BaP, which is related to toxicity, mutagenesis and carcinogenesis, was conducted in the degradation by Bacillus sp. The results show that （1）dissolution of BaP was enhanced nearly 20 times; （2） TW-80 could be utilized by microorganism as energy and could not bring contamination again; （3） the effect of degradation was best when the concentration of BaP, TW-80, sodium succinate were 10 mg/L, 500 mg/L, 50 mg/L in the cultures respectively. Additionally, the effect of TW-80 on BaP biodegradation was indicated.
出处
《辽宁工程技术大学学报（自然科学版）》
EI
CAS
北大核心
2007年第3期467-469,共3页
Journal of Liaoning Technical University (Natural Science)
基金
国家重点基础研究发展计划"973"项目(2004CB418506)
国家自然科学重点基金项目(20337010)
