Pilot study on vibrating MBR(rMBR)treatment of urban domestic sewage
Taking urban domestic sewage as raw water,a 5-stage Bardenpho-rMBR process was constructed for pilot test(hereinafter referred to as pilot system).The removal effect of the pilot system on pollutants such as COD,TP,TN,ammonia nitrogen,nitrate nitrogen and SS,as well as the change of transmembrane pressure difference,water production flux,energy consump-tion and drug consumption during operation were investigated.The effluent effect was compared between the pilot system and the original system of the water plant,as well as between the pilot membrane treatment and the advanced treatment of the water plant,in order to analyze the charac-teristics of the rMBR process.The results showed that the average concentrations of COD,TP,TN and ammonia nitrogen in effluent were 11 mg/L,0.16 mg/L,5.26 mg/L and 0.583 mg/L,re-spectively,and the average removal rates were 92.4％,96.9％,79.5％and 97.2％,respectively.The effluent index can stably reach the Grade A standard of the Pollutant discharge standard for urban sewage treatment plants(GB 18918-2002).
万方数据
维普
