树脂吸附法处理苯甲醇生产废水  

Treatment of wastewater from benzyl alcohol production with resin adsorption

作　　者：陈一良[1] 潘丙才[2] 张全兴[2] 

机构地区：[1]南京林业大学环境工程系,江苏南京210037 [2]南京大学污染控制与资源化研究国家重点实验室,江苏南京210093

出　　处：《化工学报》2007年第5期1220-1224,共5页CIESC Journal

基　　金：国家自然科学基金项目(20274017)~~

摘　　要：研究了树脂吸附法处理苯甲醇生产废水,考察了树脂吸附-脱附的影响因素,并优化了工艺参数。结果表明,超高交联大孔吸附树脂JX-101对苯甲醇具有良好的吸附-脱附性能,废水经固定床吸附工艺处理后,苯甲醇浓度从14000mg.L-1降至25mg.L-1,COD从34000mg.L-1降至100mg.L-1以下,苯甲醇和COD去除率均超过99%,出水水质达到国家一级排放标准,同时还可以从废水中回收得到纯度高达85%的苯甲醇。该技术工艺操作简便,运行稳定可靠,为苯甲醇生产废水的治理和资源化提供了实验依据。An adsorption process to treat the wastewater from benzyl alcohol production with hypercrosslinked macropore resin was studied. The factors, including pH, temperature, flow rate, desorption reagent, etc. that influenced the adsorption-desorption process were investigated. Based on the investigation, the process parameters for the treatment were optimized. The results showed the hypercrosslinked macropore resin JX-101 exhibited excellent adsorption-desorption performance for benzyl alcohol. Through the fixed-bed adsorption process under optimal conditions, the concentration of benzyl alcohol in the wastewater was reduced from 14000 mg· L ^-1 to 25 mg· L^-1 and COD was reduced from 34000 mg · L^- 1 to less than 100 mg · L^-1. The removal rate of benzyl alcohol and COD was over 99%, and the effluent quality met National Discharge Standard Ⅰ . Furthermore, benzyl alcohol in the wastewater could be recovered, with purity of 85%. The process is convenient and could be steadily run, which provides the experimental basis for the treatment and resource reuse of benzyl alcohol production wastewater.

关 键 词：苯甲醇 树脂 吸附 废水处理 资源化 

分 类 号：O647.3[理学—物理化学] X783[理学—化学]