期刊论文

Remediation of uranium contaminated groundwater by β-glycerophosphate

Ding, D.-X.

中文

中国环境科学

1000-6923

2018

38

9

3391-3397

10.19674/j.cnki.issn1000-6923.2018.0366

U1401231:国家自然科学基金 11775106:国家自然科学基金 15C1179:湖南省教育厅一般项目

本校为第一且通讯机构

利用微模型实验,研究β-甘油磷酸钠修复含铀地下水的效果,监测厌氧培养过程中硝酸盐、硫酸盐、磷酸盐、pH值和铀浓度的变化,分析沉积物中铀的化学形态以及U(IV)的比例.结果表明:厌氧培养25d后,β-甘油磷酸钠组和甘油组的铀浓度分别从2.96,2.99mg/L降低到0.030,0.044mg/L,达到了我国《铀矿冶辐射防护和环境保护规定(GB23727-2009)》规定的排放标准.β-甘油磷酸钠作为碳源和磷源能够降低沉积物中可交换态和碳酸盐结合态铀的比例,并能提高沉积物中铁锰氧化物结合态,有机结合态和残渣态铀的比例;厌氧培养25d后,β-甘油磷酸钠组沉积物中U(IV)的比例达到了91.79%,比甘油组提高了28.82%,厌氧培养45d后,...

The microcosm experiment were conducted to investigate the remediation effect of uranium contaminated groundwater by β-glycerophosphate. The variations of pH and nitrate, sulfate, phosphate, and uranium concentrations were monitored during the incubation, and the uranium species and the proportion of U(IV) in sediments were analysed. It was found that, after 25d incubation, the concentrations of uranium in liquids in the β-glycerophosphate and glycerol amended groups decreased from 2.96 and 2.99mg/L to 0.030 and 0.044mg/L, respectively, which...