【摘要】 采用预处理+微滤(MF)+反渗透(RO)双膜技术深度处理印染废水。通过改变废水的温度、pH值、回用率和反渗透操作压力,分析相关因素对CODCr去除率和脱盐效果的影响。试验表明,优化的运行工况为:操作压力1.8 MPa,水温35℃,pH值6.0～10.0,回收率80%;此双膜法深度处理废水对CODCr的去除率和脱盐率分别达到97.4%和97.0%,浊度去除率接近100%,出水水质满足印染工艺回用要求。更多还原

【Abstract】 Pretreatment+microfiltration+reverse osmosis technology is applied to dyeing effluents treatment.Factors exerting influence on the removal of CODCr and desalination results are discussed by changing temperature and pH value of dyeing effluents,recycling rate and operation pressure of reverse osmosis.The results show that the optimum operating conditions are as follows: operation pressure 1.8 Mpa,effluents temperature 35 ℃,pH value 6.0~10.0 and recovery rate 80%.The effluents after treatment can meet the reuse requirement with the removal of CODCr and desalination rate of 97.4% and 97% respectively,and the removal of turbidity closes to 100%.更多还原