吸附法在氨氮废水处理中的应用

Application of Adsorption in Treatment of Ammonia Nitrogen Wastewater

氨氮废水来源广泛、总量巨大,必须对其进行处理。目前氨氮废水的处理方法有很多,吸附法是其中的一种。吸附法中使用的吸附剂有人工合成类、天然矿物类和资源再生类三种类型,它们各有优点与不足。吸附法在处理氨氮废水过程中也存在着需要改进的问题,主要是因为吸附容量限制导致的吸附剂频繁再生、解吸液的处理以及废弃吸附剂的处置。如果能够将吸附法与其它方法联合使用,并解决好存在的一些问题,吸附法在氨氮废水处理中依然有美好的前景。

Ammonia nitrogen wastewater originates widely,and its total quantity is enormous,so it is very necessary to treat ammonia nitrogen wastewater.At present,there are many methods of treating the wastewater,and adsorption is one among those methods.Adsorbents used in adsorption can be classified as artificially synthetic adsorbents,natural mineral adsorbents and adsorbents made by regenerating waste material,each of which has its own advantages and shortcomings.In the process of treating ammonia nitrogen wastewater,the method of adsorption also has some problems that need to be improved.The main problems are frequent regeneration of the adsorbent duo to the limit of adsorptive capacity,treatment of the desorbed solution and management of the waste adsorbent.If adsorption can be combined with the other methods and problems existing in adsorption can be overcome,adsorption will still have a bright future.