期刊论文

Ding, D.-X.(dingdxzzz@163.com)

中文

原子能科学技术

1000-6931

2013

47

8

1300-1306

10.7538/yzk.2013.47.08.1300

国家自然科学基金资助项目（50774047,51154003）； 湖南省科技厅重点项目资助（2010GK2025）； 湖南省教育厅重点项目资助（10A103）； 湖南省教育厅项目资助（10C1134）；

本校为第一且通讯机构

地浸采铀矿山退役采区地下水的NO_3~--N污染是一备受关注的问题。本文通过对取自某地浸采铀矿山退役采区的污泥进行驯化,得到了能去除地浸采铀矿山退役采区污染地下水中NO_3~--N的反硝化细菌,自行设计了上流式固定床反硝化细菌生物反应器,研究了pH值、C/N比和水力停留时间(HRT)对反硝化细菌生物反应器去除地浸采铀矿山退役采区污染地下水中NO_3~--N的影响。研究结果表明:当进液pH值为6.50、NO_3~--N浓度为1 000 mg/L、HRT为2 3 h时,NO_3~--N的去除率和去除速率分别达97%和388 mg/(h?L),生物反应器处理废水的能力达0.35 m~3/(h?m~3);当进液NO_3~--N浓度为550 mg/L、HRT为1.4 h时,NO_3~--N的去除率...

The pollution of groundwater by NO3- in the decommissioned mining area in an in-situ leach uranium mine is being paid more and more attention. The denitrifying bacteria by domesticating the sludge taken from the decommissioned mining area in an in-situ leach uranium mine in North West of China were obtained. An up-flow fixed-bed denitrifying bacteria bioreactor was designed. The effects of pH, the ratio of carbon to nitrogen and HRT on the removal of NO3--N from the polluted groundwater in the decommissioned mining area in the in-situ leach uranium mine by the denitrifying bacteria bioreactor ...