电生Co^(2+)-H_2O_2体系降解溴邻苯三酚红的研究

该文提出了一种新颖的高级氧化体系—电生Co^(2+)-H_2O_2体系,该体系采用普通的三电极系统,在恒电位条件下,简单、快捷地实现了对溴邻苯三酚红(BPR)的电催化降解。文中探讨了其作用机理,研究了最优化工作条件,并将其与传统的Fenton试剂进行了比较。研究表明,该体系具有耗费试剂量少、稳定性好、操作简便、测定快速等优点,可适用于工业废水处理,特别对有色染料废水的处理具有广阔的应用前景。

Assessment of the Total Organic Carbon and Conductivity in Consecutive Dyeings with Reactive Dyestuffs Using Treated Effluent by UV/H202 Photocatalysis

The paper was monitored the conductivity （g.L＂l of NaCI）, the absorbances values （Abs） and the amount of TOC （total organic carbon）, before and after five consecutive dyeings made with reuse water, obtained from treated effluent by UV/H202 photocatalysis. All rates of decolorization were above 92%, the removal of total organic carbon was above 89% in all treatments and the economy of NaCI was from 3.10 in the first recipe, 3.17 in the second, 3.49 in the third, 3.79 in the fourth and 4.05 in the fifth recipe. The five dyeings compared with same dyeings made with deionized water presented a color deviation （AE＊） below 1. The conventional dyeings would consume 80 L/kg against 40 L/kg used in the dyeing process proposed in this study, representing a great economy of water, with no discharge of effluents.