树脂吸附法处理高浓度DSD酸氧化工序生产废水的研究  

TREATMENT OF DSD ACID MANUFACTURING WASTEWATER ON MACROPOROUS RESIN

作　　者：龙超[1] 张全兴[1] 许昭怡[1] 李爱民[1] 陈金龙[1] 成志强[1] 

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

出　　处：《离子交换与吸附》2002年第1期45-50,共6页Ion Exchange and Adsorption

摘　　要：本文采用大孔吸附树脂固定床工艺处理DSD酸氧化工序生产废水。实验结果表明,ND804大孔吸附树脂对该废水具有良好的吸附—脱附效果,废水经ND804树脂吸附处理后,CODCr由14790mg/L降至1300mg/L左右,COD去除率约为91%,并可回收纯度达80%的DNS酸,废水在得到有效治理的同时实现了废物的资源化。diaminostilbene-2, 2?disulfonic acid (DSD acid) manufacturing wastewater was treated by a macroporous resin in a fixed-bed column. The results showed that this method was suitable for removal of chemical oxygen demands (COD). About 91% COD removal was obtained under the optimum adsorption conditions. Furthermore, 4,4?dinitrostilbene-2, 2?disulfonic acid (DNS) could be recovered from wastewater for possible recycling to the manufacturing process and the recovered DNS抯 purity reached 80%. The adsorption capacity of resin remained constant during the repetition process of adsorption and desorption.

关 键 词：大孔吸附树脂 DNS酸 染料中间体 废水治理 

分 类 号：X788.03[环境科学与工程—环境工程] TQ028.33[化学工程]