Research of Purifying Alkali Weight-Reduction Wastewater to Recovery of Terephthalic Acid
In those traditional ways of treating alkali weight-reduction wastewater, the COD removal is greatly considered, while recovering terephthalic acid (TA) by valuable resource according to the principles of sustainable development is less involved. In this research, recovery of high pure TA from alkali weight-reduction has been researched by purified mother liquid with coagulation-sedimentation. The purity of TA obtained was investigated by various methods, results has shown that the characters of TA was great improved in view of high recovery rate by coagulation-sedimentation on conditions of pH 7.0-8.0 of wastewater and 200-250mg/l in quantity of PAC, so coagulation-sedimentation by pretreatment is an effective method. The study is also very useful in recycling of PET or treating TA industrial wastewater.
Liu Chaonan Xia Weihong
College of Chemical and Environmental Engineering, Shanghai Institute of Technology No.120, Caobao R College of Chemical and Environmental Engineering, Shanghai Institute of Technology No.120,Caobao Ro
国际会议
哈尔滨
英文
110-114
2011-03-26（万方平台首次上网日期，不代表论文的发表时间）