摘要
对一株经筛选后能高效降解菲、芘污染土壤的动胶杆菌进行固定化，实验结果表明，采用聚乙烯醇（ＰＶＡ）１００ｐ／（ｇ·Ｌ），海藻酸钠５ｐ／（ｇ·Ｌ），活性炭５０ｐ／（ｇ·Ｌ）制得的固定化载体，机械强度好，对菲、芘的降解率１０ ｄ分别可达８７．４８％和７５．３４％，明显高于游离菌对菲芘的降解率６６．２％和 ５４．４９％
The immobilization method of a strain identified as Zoogloea sp., which could after screening degrade phenanthrene and pyrene in the contaminated soil efficiently, was tested. The results showed that the immobilized carrier made of 100P/(g.L) PVA, 5P/(g.L) sodium alginate and 50P/(g.L) activated carbon, had better strong and could degrade 87.48% and 75.34% of phenanthrene and pyrene respectively in ten days, which was remarkally higher than the degradation rate of phenanthrene and pyrene (66.2% and 54.49%), by the free cells.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2000年第6期515-518,共4页
China Environmental Science
基金
国家自然科学基金资助项目(29977021)
中国科学院重大项目(KZ-51-B1-207-01-03)
关键词
固定化
降解
菲
芘
土壤污染
immobilization
degradation
phenanthrene
pyrene
contaminated soil
