Status and development of phenol removal technologies of fixed bed gasification waste water
DONG Weiguo
WANG Jikun
ZHOU Na
GAO Minglong
FU Churui
Abstract：In order to solve problems of three physical extraction phenol removal technologies in treating fixed bed gasification waste water,a complex extraction method of complex extraction dephenolizaion was proposed.The effects of extraction and solvent recovery of different complex extraction agents were studied and the effects of two kinds of extraction technologies on the removal of phenol and economic cost were analyzed.The results showed that the extraction rate of the physical extraction was generally lower than 80％,while the extraction rate of the complex extraction agent was higher than 85 ％.The loss rate of complex extraction agent (＜0.1％) in the water was lower than that of physical agent (＞0.87％).The complex extraction was carried out by alkali washing method.The economic cost of complex extraction (＜RMB 20 per ton) was lower than that of physical extraction (RMB 30-40 per ton).
Keywords：fixed bed gasification waste waterphysical extractioncomplex extractionextraction rateeconomic cost
Publication Date：2017-01-01