高岭石固定化微生物对菲的降解研究
Biodegradation of phenanthrene by Kaolinite immobilized a degradation bacteria
查看参考文献24篇
文摘
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从新疆克拉玛依油田受污染土壤中分选筛出1株能够以菲为唯一碳源和能源生长的细菌(命名为XJB4) ,初步鉴定为苍白杆菌( Ochrobactrum sp. ) 。在初始pH 7. 0,培养温度30 ℃,投菌比例10%时,菌株XJB4对菲(初始浓度50 mg /L)的降解率在9 d内达88%以上。采用吸附法可以将菌株XJB4固定在高岭石上,固定化微生物具有传质性好、耐毒害能力强特点,对菲的降解在72 h低浓度条件下可达到95. 24%,优于游离菌对菲的去除率70. 12%。 |
其他语种文摘
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A bacteria strain XJB4 which can utilize phenanthrene as the sole source carbon source and energy was isolated from Kelamayi oil field in Xinjiang autonomous region. The optimum pH, temperature,amount of bacteria for phenanthrene biodegradation by XJB4 was found to be 7. 0,30 ℃,10% respectively, and the degradation rate of phenanthrene was up to 88% within 9 d. The method of strain XJB4 absorbed on Kaolinite showed that immobilized microorganism has the characteristic of good transfer and poison resistance,the degradation of phenanthrene within 72 h under low concentration can achieve 95. 24%,however, the removal rate of free bacteria was 70. 12%. |
来源
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应用化工
,2017,46(4):650-654 【扩展库】
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关键词
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苍白杆菌
;
分离
;
鉴定
;
菲
;
微生物固定化
;
生物降解
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地址
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1.
新疆大学地质与矿业工程学院, 新疆, 乌鲁木齐, 830046
2.
中国科学院新疆理化技术研究所, 新疆, 乌鲁木齐, 830046
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1671-3206 |
学科
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化学工业 |
基金
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国家自然科学基金
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文献收藏号
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CSCD:5966781
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