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pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响

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陈炜婷, 张鸿郭, 陈永亨, 罗定贵, 吴启航. pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响[J]. 环境工程学报, 2014, 8(10): 4105-4109.
引用本文: 陈炜婷, 张鸿郭, 陈永亨, 罗定贵, 吴启航. pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响[J]. 环境工程学报, 2014, 8(10): 4105-4109.
shu
Chen Weiting, Zhang Hongguo, Chen Yongheng, Luo Dinggui, Wu Qihang. Effect of pH, temperature and initial concentration on thallium removal by sulfate-reducing bacteria[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4105-4109.
Citation: Chen Weiting, Zhang Hongguo, Chen Yongheng, Luo Dinggui, Wu Qihang. Effect of pH, temperature and initial concentration on thallium removal by sulfate-reducing bacteria[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4105-4109.
shu

pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响

  • 1.

    广州大学环境科学与工程学院, 珠江三角洲水质安全与保护省部共建重点实验室, 广州 510006

  • 2.

    国家海洋局南海环境监测中心, 广州 510300

  • 基金项目:

    国家自然科学基金资助项目（51208122）

    广东省科技计划项目（2010B030900008）

    广州市珠江科技新星项目（2011061）

    广州市属高校科研项目（10A064）

    教育部重点实验室开放课题（GZ201102）

  • 中图分类号: X703

Effect of pH, temperature and initial concentration on thallium removal by sulfate-reducing bacteria

  • Fund Project:

  • 摘要: 环境因素对硫酸盐还原菌除铊效果具有较大的影响。在对上流式厌氧污泥床污泥中分离纯化得到的硫酸盐还原菌进行初步鉴定的基础上，探讨pH、温度以及初始铊浓度对硫酸盐还原菌除铊效果的影响。实验结果表明，3株耐铊硫酸盐还原菌生长的反应适宜pH为6.0，该pH环境下3个菌株的铊去除率分别为96.71%、97%和96.23%；最适温度在28~32℃范围内，此条件下3株菌株对铊的去除率分别高达93.11%、91.84%和92.83%；初始低浓度铊对菌株除铊效果影响较小，3株菌株除铊率均达到99.4%以上。对反应过程中的pH、温度以及初始铊浓度进行调节，对于改善硫酸盐还原菌去除铊污染效果具有重要意义。
    Abstract: Environmental factors play important roles in the removal of thallium by sulfate-reducing bacteria (SRB).In present study,three SRBs were isolated from an up-flow anaerobic sludge bed (UASB) used for treatment of acid mine drainage and effect of pH,temperatures and initial concentration on thallium removal by the three SRBs were investigated.The results showed that the highest thallium removal efficiencies of 96.71%,97% and 96.23% for the three SRBs were achieved at pH 6.0 while 93.11%,91.84% and 92.83% were obtained at 28~32℃.Low initial thallium concentration had little effect on thallium removal,and more than 99.4% of thallium could be removed by the three SRBs.Our study demonstrated that enhanced removal of thallium can be achieved by using SRBs and adjusting pH,temperatures and the initial thallium concentration of thallium.
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出版历程
  • 收稿日期:  2014-01-07
  • 刊出日期:  2014-09-28
陈炜婷, 张鸿郭, 陈永亨, 罗定贵, 吴启航. pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响[J]. 环境工程学报, 2014, 8(10): 4105-4109.
引用本文: 陈炜婷, 张鸿郭, 陈永亨, 罗定贵, 吴启航. pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响[J]. 环境工程学报, 2014, 8(10): 4105-4109.
shu
Chen Weiting, Zhang Hongguo, Chen Yongheng, Luo Dinggui, Wu Qihang. Effect of pH, temperature and initial concentration on thallium removal by sulfate-reducing bacteria[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4105-4109.
Citation: Chen Weiting, Zhang Hongguo, Chen Yongheng, Luo Dinggui, Wu Qihang. Effect of pH, temperature and initial concentration on thallium removal by sulfate-reducing bacteria[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4105-4109.
shu

pH、温度及初始铊浓度对硫酸盐还原菌脱铊的影响

  • 1.  广州大学环境科学与工程学院, 珠江三角洲水质安全与保护省部共建重点实验室, 广州 510006
  • 2.  国家海洋局南海环境监测中心, 广州 510300
  • 收稿日期:  2014-01-07
基金项目:

国家自然科学基金资助项目（51208122）

广东省科技计划项目（2010B030900008）

广州市珠江科技新星项目（2011061）

广州市属高校科研项目（10A064）

教育部重点实验室开放课题（GZ201102）

摘要: 环境因素对硫酸盐还原菌除铊效果具有较大的影响。在对上流式厌氧污泥床污泥中分离纯化得到的硫酸盐还原菌进行初步鉴定的基础上，探讨pH、温度以及初始铊浓度对硫酸盐还原菌除铊效果的影响。实验结果表明，3株耐铊硫酸盐还原菌生长的反应适宜pH为6.0，该pH环境下3个菌株的铊去除率分别为96.71%、97%和96.23%；最适温度在28~32℃范围内，此条件下3株菌株对铊的去除率分别高达93.11%、91.84%和92.83%；初始低浓度铊对菌株除铊效果影响较小，3株菌株除铊率均达到99.4%以上。对反应过程中的pH、温度以及初始铊浓度进行调节，对于改善硫酸盐还原菌去除铊污染效果具有重要意义。

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