催化裂化烟气脱硫废水COD控制

COD Control of Desulfurization Wastewater from FCC Flue Gas

湿法脱硫工艺是现阶段世界范围内应用最广泛的烟气脱硫工艺。在湿法脱硫工艺中,不可避免地要产生一定数量的废水。如何处理烟气脱硫中产生的废水是企业面临的一个难题,本文结合宁夏石化炼油厂烟气脱硫废水的水质特征,简要分析了烟气脱硫废水COD超标的原因,并结合生产实际寻找解决的方法。通过岗位长时间,有计划的调整操作,找到最佳控制条件,有效的提高了废水COD合格率。

Wet desulfurization process is the most widely used flue gas desulfurization process in the world at present.In wet desulfurization process,it is inevitable to produce a certain amount of wastewater.How to deal with the waste water generated in flue gas desulfurization is a difficult problem faced by enterprises.Combined with the water characteristics of flue gas desulfurization wastewater in Ningxia petrochemical refinery,this paper briefly analyzed the COD exceeding the standard in flue gas desulfurization wastewater,and tried to find the solutions according to the production practice.Through long-term and planned adjustment and operation,we found the optimal control condition,which effectively improved the qualified rate of COD wastewater.