MVR处理中性地浸采铀矿山蒸发池废水技术研究

Study on MVR Technology for Treating Evaporation Pond Wastewater From Neutral In-situ Leaching Uranium Mine

采用自然蒸发工艺时,单靠蒸发池面积的增加不足以处理大量的放射性废水。以某中性地浸采铀矿山的电渗析浓水和蒸发池废水为研究对象,采用MVR蒸发工艺,考察了不同压力和温度下的冷凝水水质情况和蒸发效果。结果表明,冷凝水可达到排放或回用标准,减容率达95%;在0.07 MPa、90℃时,MVR的蒸发效果最好。

It is difficult to treat radioactive wastewater by increasing the area of evaporation pool alone when using natural evaporation process.Taking the concentrated water of electrodialysis and the wastewater of evaporation pond in a neutral in-situ leaching uranium mine as the research object,MVR evaporation process was used to investigate the quality of condensate water and evaporation effect under different pressures and temperatures.The results show that the condensate water can meet discharge or reuse standards,the volume reduction rate reaches 95%,and the MVR has the best evaporation effect at 0.07 MPa and 90℃.