【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％更多还原

【Abstract】 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.更多还原