东北高寒区地下水接触氧化除锰技术的研究进展与对策

Research Progress and Countermeasure of Manganese Removal by Contact Oxidation of Groundwater in Alpine Region of Northeast China

高铁、高锰是东北高寒区地下水普遍存在的问题之一,常规的水处理厂通过曝气生物滤池和接触催化氧化工艺来实现铁锰净化。然而这种除锰工艺比较复杂,并且对于溶解氧(DO)和pH要求较高,同时接触催化氧化除锰滤池中锰质活性滤膜的成熟期较长,不适合村镇分散式的地下水供水水质净化。总结了地下水除锰技术研究进展,并针对地下水对pH及DO的要求,提出一种氧、碱双缓释材料的对策。

High iron and manganese levels are one of the common problems of groundwater in the Northeast Alpine Region.The conventional water treatment plants purify iron and manganese through biological aerated filter and contact catalytic oxidation process.However,this manganese removal process is more complex and requires higher dissolved oxygen(DO)and pH value.At the same time,the mature period of manganese active filter membrane in the contact catalytic oxidation manganese removal filter is longer,so it is not suitable for the water purification of distributed groundwater supply in villages and towns.In this paper,the research progress of manganese removal from groundwater is summarized,and according to the requirements of pH value and DO of groundwater,a kind of Oxygen and Alkali-double slow-release material is put forward.