球红假单胞菌对活性炭的降解转化

doi:10.12068/j.issn.1005-3026.2015.05.014

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (5): 670-674.DOI: 10.12068/j.issn.1005-3026.2015.05.014

球红假单胞菌对活性炭的降解转化

刘倩，杨洪英，佟琳琳，乔丽丽

(东北大学材料与冶金学院，辽宁沈阳110819)

收稿日期:2014-05-21 修回日期:2014-05-21 出版日期:2015-05-15 发布日期:2014-11-07
通讯作者: 刘倩
作者简介:刘倩(1984-)，女，山东菏泽人，东北大学博士研究生；杨洪英(1960-)女，河北张家口人，东北大学教授，博士生导师.
基金资助:
国家高技术研究发展计划项目(2012AA061501)；国家自然科学基金资助项目(51174062，51374066，51304047)；中央高校基本科研业务费专项资金资助项目(N120602006，N110302002，N110602005).

Bio-degradation of Activated Carbon by Rhodopseudomonas spheroides

LIU Qian， YANG Hong-ying， TONG Lin-lin， QIAO Li-li

School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2014-05-21 Revised:2014-05-21 Online:2015-05-15 Published:2014-11-07
Contact: YANG Hong-ying
About author:-
Supported by:
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摘要/Abstract

摘要： 以活性炭作为含碳金矿中碳质物的替代物，研究了球红假单胞菌对其的降解转化及吸金能力的影响.通过正交试验确定了球红假单胞菌降解活性炭的最优工艺组合:粒度<74μm、炭浆质量分数5%、降解时间14d、菌液用量1mL/100mL，此时活性炭的降解率高达28.35%.金吸附性试验表明，球红假单胞菌可使活性炭的吸金能力降低11.46%.球红假单胞菌使活性炭的微晶结构发生变化；一些芳环结构被破坏；含氧基团和芳香族结构的数量增多.这说明球红假单胞菌在降低碳质物劫金性方面是一种有效微生物.

关键词: 球红假单胞菌, 含碳金矿, 活性炭, 生物降解, 吸金能力

Abstract: The effect of Rhodopseudomonas spheroides on the degradation and the gold adsorption capacity of activated carbon were investigated， and activated carbon was used as a substitute of carbonaceous materials in carbonaceous gold ores. The optimum process conditions of bio-degradation of activated carbon were confirmed by orthogonal experiment， i.e. the granularity was <74μm， the pulp mass concentration was 5%， the degradation time was 14d and the microbial quantity was 1mL/100mL. Under the optimum process conditions， the bio-degradation rate of activated carbon reached to 28.35%. The gold-adsorption tests showed that Rhodopseudomonas spheroides decreased the gold-adsorption capacity of activated carbon， about 11.46%. The micro-crystalline structure of activated carbon and some of the aromatic ring structures were distorted， and the content of oxygen-containing groups and aromatics was increased. These indicated that Rhodopseudomonas spheroides is an available bacterium， which can be employed to reduce the preg-robbing capacity of carbonaceous matter.

Key words: Rhodopseudomonas spheroides, carbonaceous gold ores, activated carbon, bio-degradation, gold-adsorption capacity

中图分类号:

TF18

刘倩，杨洪英，佟琳琳，乔丽丽. 球红假单胞菌对活性炭的降解转化[J]. 东北大学学报:自然科学版, 2015, 36(5): 670-674.

LIU Qian， YANG Hong-ying， TONG Lin-lin， QIAO Li-li. Bio-degradation of Activated Carbon by Rhodopseudomonas spheroides[J]. Journal of Northeastern University Natural Science, 2015, 36(5): 670-674.

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球红假单胞菌对活性炭的降解转化

Bio-degradation of Activated Carbon by Rhodopseudomonas spheroides

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