Applied Chemistry, Vol.11, No.2, 618-621, November, 2007
Submerged Microfiltration Membrane Coupled with Powdered Activated Carbon Adsorption for Complete Decolorization of Reactive Dyes from Binary Mixture
Even the presence of very low concentrations of dyes (1 mg/L) in the effluent is highly visible and is considered aesthetically undesirable. It must be removed from wastewater completely. This study systematically evaluates the performance of adsorption, coagulation (AlCl3ㆍ6H2O) and membrane (submerged hollow fiber microfiltration) processes individually in treating binary reactive dyes (Orange 16 and Black 5) and then using a hybrid process with combined coagulation-adsorption-membrane treatment system. The dye removal efficiency by coagulation was highly dependent on dye concentration and solution pH. It was evident that the combined coagulation-adsorption-membrane process has a great potential application for complete reactive dye removal, production of high-quality treated water and allows the reduction in the use of coagulant and adsorbent.