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中文摘要：
以某铀矿废水纳入河—临水河为研究对象,分析其水化学特征与铀的分布特征,并探明在不同季节时铀矿对河流的影响程度。结果表明,临水河流域属于低矿化度水,其TDS整体变化范围为25.84-45.68mg/L,在平水期,矿区附近流域水化学类型由HCO3-Ca型变为HCO3-SO4-Ca型水,丰水期未有显著改变。河水中铀体现出时空不同分布特征。空间上,临水河流域在上、中、下游呈现出先增高再降低的趋势;时间上,相同点位上平水期的铀含量高于丰水期。以江西省背景值为标准采用单因子指数法评价临水河放射性铀污染,临水河仅有中游地区受到污染,但整体流域铀含量远远低于WHO的限值,处于安全范围之内。
英文摘要：
Hydrochemical characteristics and distribution characteristics of uranium were analyzed with Linshui River downstream of uranium mine as research object. Effect of uranium mine on river water at different seasons was verified. The results show that river water is of low salinity with TDS range of 25.84 -45.68 mg/L. In normal season, hydrochemistry type of upstream is HCOa-Ca, while that of midstream is HCOa-SO4-Ca. This phenomenon isn＇t outstanding in raining season. Uranium in river varies with temporal and spatial distributions. Uranium content rises firstly and then drops from upstream to downstream; uranium content in normal season is higher than that in raining season. According to radionuclide uranium contamination levels evaluated by single factor index, only the midstream is contaminated, but uranium content of the whole drainage basin of Linshui River is far lower than the limit content of WHO within regulatory limits.
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