Kurt Ugur, Apaydin Omer, Gonullu M Talha
Yildiz Technical University, Environmental Engineering Department, 34349 Istanbul, Turkey.
J Hazard Mater. 2007 May 8;143(1-2):33-40. doi: 10.1016/j.jhazmat.2006.08.065. Epub 2006 Sep 1.
Advanced oxidation processes (AOPs) have led the way in the treatment of aqueous waste and are rapidly becoming the chosen technology for many applications. In this paper, COD reduction potential of leather tanning industry wastewaters by Electro-Fenton (EF) oxidation, as one of the AOPs, was experimentally evaluated. The wastewater sample was taken from an outlet of an equalization basin in a common treatment plant of an organized tannery industrial region in Istanbul, Turkey. Treatment of the wastewater was carried out by an electrochemical batch reactor equipped with two iron electrodes, which were connected parallel to each other. The oxidation process was studied for optimization of H(2)O(2) and the electricity consumptions were observed at different contact times under different pH conditions (3.0, 5.0 and 7.2). In each case, electricity consumption for decreased COD mass was estimated. In this process, COD was reduced by 60-70% within 10 min. By taking into consideration the local sewerage discharge limit, applicability of EF process for the tannery wastewaters was evaluated.
高级氧化工艺（AOPs）在处理废水方面处于领先地位，并正迅速成为许多应用的首选技术。本文通过实验评估了作为AOPs之一的电芬顿（EF）氧化法对制革工业废水的化学需氧量（COD）降低潜力。废水样本取自土耳其伊斯坦布尔一个有组织的制革工业区的一家普通处理厂的均衡池出口。废水处理由一个配备有两个相互并联的铁电极的电化学间歇式反应器进行。研究了氧化过程以优化过氧化氢（H₂O₂），并在不同pH条件（3.0、5.0和7.2）下不同接触时间观察了电耗。在每种情况下，估算了降低COD质量所需的电耗。在此过程中，10分钟内COD降低了60 - 70%。考虑到当地污水排放限值，评估了EF工艺对制革废水的适用性。
