摘要
采用恶臭假单胞菌,以活性炭纤维为载体,以聚乙烯醇(PVA)为包埋剂制成固定化恶臭假单胞菌,对含酚废水的降解效果进行研究。与游离恶臭假单胞菌相比,固定化恶臭假单胞菌小球的运行周期长,对苯酚的降解效果好。讨论了外部环境因素包括苯酚的初始质量浓度、pH和温度对固定化恶臭假单胞菌降解苯酚效果的影响。结果表明,随着苯酚质量浓度的增加,固定化恶臭假单胞菌对苯酚具有良好的降解效果;当苯酚初始质量浓度大于200 mg/L时,固定化恶臭假单胞菌降解苯酚的效果远远优越于游离态的;固定化恶臭假单胞菌对高质量浓度的苯酚、pH和温度的变化表现出了较好的耐受力;当pH为7～9,温度在30～35℃,固定化恶臭假单胞菌对苯酚的降解效果达到93%。
Pseudomonas putida were immobilized on activated carbon fiber （ACF） by using polyvinyl alcohol（PVA） as embedding material. Immobilized pseudomonas putida were used to treat synthetic wastewater containing phenol. Comparing with free pseudomonas putida, immobilized pseudomonas putida exhibited a longer operation time and better degradation rate. The factors affecting phenol degradation by immobilized pseudomonas putida were investigated, and the results showed that immobilized pseudomonas putida displayed better phenol removing efficiencies with the increasing of phenol concentrations. When phenol concentrations were over 200 mg/L the phenol removing efficieneies was better by immobilized pseudomonas putida than free pseudomonas putida. Immobilized pseudomonas putida could lerate a high phenol level and protected the bacteria against changes in temperature and pH. The results showed when pH value was 7-9 and temperature was 30-35℃ ,the removal rate was 93%.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第8期34-36,共3页
Technology of Water Treatment
基金
中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院东海水产研究所)资助项目(2007T01)
关键词
固定化
恶臭假单胞菌
苯酚
降解
immobilized
pseudomonas putida
phenol
degradation
