作　　者： ; ; ; ; ;

机构地区： 广西师范大学环境与资源学院

出　　处： 《工业水处理》 2010年第9期46-49,共4页

摘　　要： 研究了树脂吸附与H2O2-V2O5催化氧化再生法处理印染废水的影响因素以及树脂再生的工艺条件。结果表明:D301、S-8和聚酰胺3种树脂对印染废水中CODCr的去除率较高,分别达到了79.23%、81.92%和71.35%;树脂对印染废水中CODCr的吸附速率随废水pH的升高而增大,但在碱性条件下的变化幅度不大;在相同吸附时间下,出水CODCr随流速的提高而增大,但流速宜控制在40 mL/h以下。树脂适宜的催化氧化再生工艺条件为:pH=3,H2O2的体积浓度为0.2 L/L,V2O5的质量浓度为1.6 g/L,室温下再生30 min;同时树脂的再生率随再生次数的增加而略有降低,但整体上再生效率均在90%以上。 The influential factors which have effect on the treatment of printing and dyeing wastewater by resin adsorption and H2O2-V2O5 catalytic oxidation regeneration, and the technological conditions of resin regeneration have been studied. The results show that the three kinds of resins, D301, S-8, and polyamide are able to adsorb the CODCr, of dyeing wastewater effectively. The removal rates of CODCr, are 79.23% ,81.92% and 71.35% respectively. The adsorption rate of resin increases with the increase of pH. At the equal time, the CODCr increases with the increase of flow rate. The optimum flow rate is controlled below 40 mL/h. The optimum regenerative conditions for the resin are as follows： pH is 3, H2O2 concentration is 0.2 IEL, V2O5 concentration is 1.6 g/L, and the regenerative time is 30 min at room temperature. The regeneration rate of the resin goes down with the increase of regeneration times. But, as a whole, its regeneration rate is more than 90%.

关 键 词： 印染废水 树脂 吸附 催化氧化

领　　域： [环境科学与工程] [化学工程]