Effects of Sulfate Reducing Bacteria on Corrosion of Carbon Steel in Cl- and SO2-4 Soils
摘 要
根据碳钢在分别添加了Cl-、SO2-4和Cl-+SO2-4的土壤中接菌与灭菌两种条件时的电化学阻抗谱特征,研究了硫酸盐还原菌(SRB)对碳钢腐蚀的影响.试验结果表明,三种盐分土壤中SRB均加速了碳钢的腐蚀速度.当Cl-灭菌土壤中添加SO2-4时,26天后碳钢腐蚀速度显著增加;当SO2-4灭菌土壤中添加Cl-时,碳钢腐蚀速度减小.
Abstract
The EIS characteristics of carbon steel in Cl-,SO2-4 and Cl-+SO2-4 soils with or without SRB were summarized.SRB could promote the corrosion rate of carbon steel in three kinds of soil.When SO2-4 was added to the soil containing Cl-,the corrosion rate of carbon steel increased greatly in the soil without SRB after 26 days.On the contrary,when Cl- was added to the soils contained SO2-4,the corrosion rate of carbon steel decreased obviously in the soil without SRB.
中图分类号 TG174.4
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50271077)
收稿日期 2007/10/30
修改稿日期 2007/12/3
网络出版日期
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引用该论文: LIU Wen-xia,SUN Cheng. Effects of Sulfate Reducing Bacteria on Corrosion of Carbon Steel in Cl- and SO2-4 Soils[J]. Corrosion & Protection, 2008, 29(11): 661~663
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参考文献
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