混合硫酸盐还原菌代谢过程的影响因素

王辉; 戴友芝; 刘川; 杜婷; 王海阳

环境工程学报

混合硫酸盐还原菌代谢过程的影响因素

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王辉, 戴友芝, 刘川, 杜婷, 王海阳. 混合硫酸盐还原菌代谢过程的影响因素[J]. 环境工程学报, 2012, 6(6): 1795-1800.

引用本文:

王辉, 戴友芝, 刘川, 杜婷, 王海阳. 混合硫酸盐还原菌代谢过程的影响因素[J]. 环境工程学报, 2012, 6(6): 1795-1800.

Wang Hui, Dai Youzhi, Liu Chuan, Du Ting, Wang Haiyang. Influencing factors on metabolism process of mixed sulfate-reducing bacteria[J]. Chinese Journal of Environmental Engineering, 2012, 6(6): 1795-1800.

Citation:

Wang Hui, Dai Youzhi, Liu Chuan, Du Ting, Wang Haiyang. Influencing factors on metabolism process of mixed sulfate-reducing bacteria[J]. Chinese Journal of Environmental Engineering, 2012, 6(6): 1795-1800.

混合硫酸盐还原菌代谢过程的影响因素

1.
湘潭大学环境科学与工程系，湘潭 411105
基金项目:
国家自然科学基金资助项目（20977072）

国家“十一五”湘江水专项(2009ZX07212-001-03)
中图分类号: X703

Influencing factors on metabolism process of mixed sulfate-reducing bacteria

1.
Department of Environmental Science and Engineering， Xiangtan University， Xiangtan 411105， China
Fund Project:

摘要: 采用间歇实验，研究不同初始pH、Fe2+投加量、COD/SO2-4及NO-3/SO2-4比值等因素对SRB还原硫酸盐效果与速率的影响。实验结果表明：中性条件下(pH=7)，硫酸盐的去除效果最佳，去除率达到84.66%，还原速率为15.07 mg/(L·h)，在初始pH为4~9的范围内，体系具有较好的缓冲能力；当COD/SO2-4比值为3时，反应209 h，硫酸盐去除率为85.33%，还原速率为8.16 mg/(L·h)，随着反应的进行，体系的pH趋于中性；当溶液中有亚铁离子存在，且浓度为0~200 mg/L时可促进硫酸盐还原菌的生长，提高其对硫酸盐的去除率；NO-3对硫酸盐的还原有明显的抑制作用。
- 硫酸盐还原菌 /
- 硫酸盐 /
- 还原速率
Abstract: The effects of several factors on reduction of sulfate by SRB and its velocity were investigated， including initial pH， Fe2+， COD/SO2-4 and NO-3/SO2-4 ratio. The results showed that 84.66% of sulfate could be removed at the velocity of 15.07 mg/(L?h) under neutral condition(pH=7). And the reaction system performed a relatively good capacity of buffering in the initial pH range of 4~9. Sulfate removal efficiency could reach up to 85.33% at the velocity of 8.16 mg/(L?h) and COD/SO2-4 ratio of 3 after 209 h， the system being gradually neutralized with the proceeding of the reaction. The efficiency of removing sulfate was enhanced in the presence of Fe2+ with the concentration of 0~200 mg/L， while the existence of NO-3 apparently adversely affected the system.
- sulfate-reducing bacteria /
- sulfate /
- reductive velocity

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王辉, 戴友芝, 刘川, 杜婷, 王海阳. 混合硫酸盐还原菌代谢过程的影响因素[J]. 环境工程学报, 2012, 6(6): 1795-1800.

引用本文:

王辉, 戴友芝, 刘川, 杜婷, 王海阳. 混合硫酸盐还原菌代谢过程的影响因素[J]. 环境工程学报, 2012, 6(6): 1795-1800.

Citation:

混合硫酸盐还原菌代谢过程的影响因素

1. 湘潭大学环境科学与工程系，湘潭 411105

收稿日期: 2011-06-04

基金项目:

国家自然科学基金资助项目（20977072）

国家“十一五”湘江水专项(2009ZX07212-001-03)

关键词:

摘要: 采用间歇实验，研究不同初始pH、Fe2+投加量、COD/SO2-4及NO-3/SO2-4比值等因素对SRB还原硫酸盐效果与速率的影响。实验结果表明：中性条件下(pH=7)，硫酸盐的去除效果最佳，去除率达到84.66%，还原速率为15.07 mg/(L·h)，在初始pH为4~9的范围内，体系具有较好的缓冲能力；当COD/SO2-4比值为3时，反应209 h，硫酸盐去除率为85.33%，还原速率为8.16 mg/(L·h)，随着反应的进行，体系的pH趋于中性；当溶液中有亚铁离子存在，且浓度为0~200 mg/L时可促进硫酸盐还原菌的生长，提高其对硫酸盐的去除率；NO-3对硫酸盐的还原有明显的抑制作用。

English Abstract

Influencing factors on metabolism process of mixed sulfate-reducing bacteria

1. Department of Environmental Science and Engineering， Xiangtan University， Xiangtan 411105， China

Received Date: 2011-06-04

Fund Project:

Keywords:

Abstract: The effects of several factors on reduction of sulfate by SRB and its velocity were investigated， including initial pH， Fe2+， COD/SO2-4 and NO-3/SO2-4 ratio. The results showed that 84.66% of sulfate could be removed at the velocity of 15.07 mg/(L?h) under neutral condition(pH=7). And the reaction system performed a relatively good capacity of buffering in the initial pH range of 4~9. Sulfate removal efficiency could reach up to 85.33% at the velocity of 8.16 mg/(L?h) and COD/SO2-4 ratio of 3 after 209 h， the system being gradually neutralized with the proceeding of the reaction. The efficiency of removing sulfate was enhanced in the presence of Fe2+ with the concentration of 0~200 mg/L， while the existence of NO-3 apparently adversely affected the system.

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混合硫酸盐还原菌代谢过程的影响因素

Influencing factors on metabolism process of mixed sulfate-reducing bacteria

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混合硫酸盐还原菌代谢过程的影响因素

English Abstract

Influencing factors on metabolism process of mixed sulfate-reducing bacteria

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