摘要
In this study, orange G dye was efficiently removed from aqueous solution by ultraflltration （UF） membrane separation enhanced with activated carbon adsorption. The powdered activated carbon （PAC） was deposited onto the UF membrane surface, forming an intact filter cake. The enhanced UF process simultaneously exploited the high water permeation flux of porous membrane and the high adsorption ability of PAC toward dye molecules. The influencing factors on the dye removal were investigated. The results indicated that with sufficient PAC incorporation, the formation of intact PAC filtration cake led to nearly complete rejection for dye solution under opti-mized dye concentration and operation pressure, without large sacnticlng the permeation tlux ot the filtration process. Typically, the dye rejection ratio increased from 43.6% for single UF without adsorption to nearly 100% for the enhanced UF process, achieving long time continuous treatment with water permeation flux of 47 L·m^-2·h^-1. The present study demonstrated that adsorption enhanced UF may be a feasible method for the dye wastewater treatment.
在这研究，橘子 G 染料被膜分离与激活的碳吸附提高了的 ultrafiltration (UF ) 高效地从水的答案移开。粉状的激活的碳(PAC ) 被扔到 UF 膜表面上，形成一个未经触动的过滤器蛋糕。提高的 UF 过程同时向染料分子利用了多孔的膜和 PAC 的高吸附能力的高水位线浸透流动。染料移动上的影响因素被调查。结果显示与足够的 PAC 加入，未经触动的 PAC 过滤蛋糕的形成在优化染料集中和操作压力下面为染料答案导致了将近完全的拒绝，没有大牺牲过滤过程的浸透流动。典型地，没有吸附，染料拒绝比率为单个 UF 从 43.6% 增加了，长完成将近百分之百与 47 L 湩畤散 ?慒汹楥桧挠湯敶瑣潩 n 的水浸透流动为提高的 UF 过程预定连续处理 ???宬 吗？？
基金
Supported by Drug Separation and Purification Project in Programme for Development of Novel Drug (2009ZX09301-008)
the Program of Introducing Talents of Discipline to Universities (B06006)
State Key Laboratory of Precision Measuring Technology and Instruments (Tianjin University)
