化学脱氮在皮革废水深度处理中的应用研究

Application of chemical denitrification in advanced treatment of leather wastewater

皮革废水中的蛋白质很丰富,在进行好氧处理期间,由于好氧微生物的脱氨基作用,致使蛋白质中的氨基发生很大变化,从而以游离氨的形式存在。所以,通过好氧处理后的皮革废水,与原水相比,出水的氨氮浓度很高,不符合现行的排放标准。同时,皮革废水二级出水的可生化性不强,若借助生物法,处理效果无法达到预期需求,必须要应用其他方式解决。鉴于此,本文即围绕化学脱氮展开,研究了其在皮革废水深度处理中的实际应用,以期为相关人士提供参考。

The protein in leather wastewater is very rich,and the amino acids change very much,which exists in the form of free ammonia.Therefore,the leather wastewater after aerobic treatment,compared with the raw water,the effluent ammonia nitrogen concentration is very high,and does not coincide with the current discharge standards.At the same time,the secondary effluent of leather wastewater does not have too strong biochemical ability.With the help of biological method,the treatment effect will not meet the expected demand,and other ways must be applied to solve it.In view of this,the practical application in the depth treatment of leather wastewater is studied to reference.