PAN Jun,SONG Jiarong,WANG Zhaoyi,et al.Test on the influence of sulfate reducing bacteria and iron bacteria on the clogging of recirculation[J].Hydrogeology & Engineering Geology,2018,45(04):31.[doi:10.16030/j.cnki.issn.1000-3665.2018.04.05]



水 文 地 质


Test on the influence of sulfate reducing bacteria and iron bacteria on the clogging of recirculation
沈阳建筑大学市政与环境工程学院,辽宁 沈阳110168
PAN Jun SONG Jiarong WANG Zhaoyi DU Xiaoyu PI Yao MU Yitao
School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, Liaoning110168, China
recharge clogging sulfate-reducing bacteria iron bacteria EPS
In view of the problem of clogging caused by sulfate-reducing bacteria and iron bacteria in areas with high contents of iron and manganese, the causes of clogging during different seepage periods are analyzed. The results can provided further evidence for the mechanism of microbial blockage. The clogging process of intermittent recharge is simulated using the indoor sand column. The characteristics of microbial recharge are analyzed by measuring the water flux, the EPS content in the sand column, the bacterial content and the gas volume change. After the experiment, diffraction is used to determine the generation of material. The results show that the decrease in permeability of the medium in the process of recharge is mainly caused by the bacteria itself. When the bacteria are in the decay stage, it is mainly caused by the increase in the EPS content, and then the bacteria and EPS and the biochemical iron and ferrous sulfide and other insoluble solids together. In the presence of sulfate-free bacteria and other gas-producing bacteria involved in the occurrence of air resistance, the recovery is difficult to carry out.


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收稿日期: 2017-10-14; 修订日期: 2017-12-10
基金项目: 国家自然科学基金项目(41072190)
第一作者: 潘俊(1962-),男,教授,博士,主要从事水文地质研究。E-mail:hj-pj@sjzu.cdu.cn
通讯作者: 宋佳蓉(1991-),女,硕士研究生,主要从事水文地质研究。E-mail:337683631@qq.com
更新日期/Last Update: 2018-07-15