树脂吸附法预处理增塑剂DOP生产废水  

Pretreatment of DOP industrial wastewater by resin adsorption

作　　者：王海玲[1] 曾雷雷[1] 朱兆连[1] 刘福强[2] 

机构地区：[1]南京工业大学环境学院江苏省工业节水减排重点实验室,南京210009 [2]南京大学环境学院污染控制与资源化研究国家重点实验室,南京210093

出　　处：《环境工程学报》2013年第3期831-835,共5页Chinese Journal of Environmental Engineering

基　　金：江苏省高校自然科学研究项目(09KJB610002;10KJB610004);污染控制与资源化研究国家重点实验室开放课题资助项目(PCRRF10004)

摘　　要：高浓度DOP生产废水生物毒性强,采用常规手段难以有效处理,对环境存在较高危害性。采用树脂吸附技术预处理增塑剂DOP生产废水,考察了树脂吸附与脱附的最佳工艺条件,结果表明,采用NDA99吸附树脂,在室温、吸附pH=2、吸附流速4 BV/h条件下,每批次处理量16 BV,COD去除率可达94%以上;对吸附饱和的树脂采用1 BV 8%NaOH+1 BV 4%NaOH+2 BV水,在60℃下以1 BV/h的流速进行脱附,COD脱附率超过97%,树脂的吸附-脱附性能良好。High concentration DOP wastewater is very difficult to be degraded by conventional treatments and leads to serious harmful to the environment. In this study, resin adsorption was used to pretreat DOP wastewater. The optimal operating conditions for resin adsorption and desorption were investigated. The results showed that the COD removal rate with resin NDA99 reached to 94% under the conditions of room temperature, pH = 2, flow rate of 4 BV/h and batch processing volume of 16 BV. The desorption agent of 1 BV8% NaOH ＋ 1 BV 4% NaOH ＋ 2 BVwater was used to regenerate the saturated resin under the conditions of 60℃ and desorption flow rate of 1 BV/h. The COD desorption rate was over 97%. The resin exhibited the better adsorption and desorption characteristics.

关 键 词：邻苯二甲酸二辛酯(DOP) 动态吸附-脱附 大孔树脂 废水处理 

分 类 号：X703[环境科学与工程—环境工程]