原子能科学技术Issue(8)：1300-1306,7.DOI:10.7538/yzk.2013.47.08.1300
反硝化细菌生物反应器去除地浸采铀矿山退役采区地下水中NO3--N的试验研究
Removal of NO3--N From Polluted Groundwater in Decommissioned Mining Area in an In-situ Leach Uranium Mine by Denitrifying Bacteria Bioreactor
摘要
Abstract
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 were investigated .The results show that when pH ,the concentration of NO3--N and HRT are set to 6.50 ,1 000 mg/L and 2.3 h ,respectively ,the removal of the NO3--N amounts to 97% ,the NO3--N degradation rate is 388 mg/(h · L) and the capacity of the bioreactor is 0.35 m3/(h · m3 ) .When pH ,the concentration of NO3--N and HRT are set to 6.50 ,550 mg/L and 1.4 h ,respectively ,the removal of the NO3--N amounts to 96% and the capacity of the bioreactor is 0.62 m3/(h · m3 ) .T he bioreactor should work on the operation conditions that pH is 5.00-8.00 and the ratio of carbon to nitrogen is 0.6-0.8 .关键词
反硝化细菌生物反应器/微生物修复/地浸采铀/污染地下水/NO3--NKey words
denitrifying bacteria bioreactor/remediation by bacteria/in-situ leach uranium mining/polluted groundwater/NO3--N分类
资源环境引用本文复制引用
王清良,胡南,丁德馨,张国奇,胡鄂明,张洪灿,阳奕汉,蒋晓辉..反硝化细菌生物反应器去除地浸采铀矿山退役采区地下水中NO3--N的试验研究[J].原子能科学技术,2013,(8):1300-1306,7.基金项目
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 （）
