Radha K V, Sridevi V, Kalaivani K
Department of Chemical Engineering, Anna University, Sardar Patel Road, Chennai 600 025, Tamil Nadu, India.
Bioresour Technol. 2009 Jan;100(2):987-90. doi: 10.1016/j.biortech.2008.06.048. Epub 2008 Aug 28.
This study elucidates the reduction of organics from textile effluents through electrochemical oxidation technique. Effect of pH and current intensity were investigated in this system. It was found that degradation was maximum at the current intensity of 0.6 A and at a pH of 1.3. Under the same experimental conditions the removal of chemical oxygen demand (COD), total solids, total dissolved solids and total organic carbon were found to be approximately 68%, 49.2%, 50.7% and 96.8%, respectively. Effect of current intensity on color removal was also investigated as a function of electrolysis time (30-210 minutes) and it showed that maximum removal efficiency (96%) was reached within 60 minutes at 0.6 A. While studying the effect of pH on COD removal, it was observed that a decrease in pH to an optimum of 1.3 showed maximum COD reduction of 68%. These results suggest an important role of these parameters in electrochemical process for removing organic pollutants.
本研究阐明了通过电化学氧化技术减少纺织废水中有机物的方法。研究了该系统中pH值和电流强度的影响。结果发现，在电流强度为0.6 A、pH值为1.3时降解效果最佳。在相同实验条件下，化学需氧量（COD）、总固体、总溶解固体和总有机碳的去除率分别约为68%、49.2%、50.7%和96.8%。还研究了电流强度对脱色的影响，并将其作为电解时间（30 - 210分钟）的函数，结果表明在0.6 A电流下，60分钟内可达到最大去除效率（96%）。在研究pH值对COD去除的影响时，发现将pH值降至最佳值1.3时，COD的最大去除率为68%。这些结果表明这些参数在去除有机污染物的电化学过程中起着重要作用。
