Atmaca Eyüp
Cumhuriyet University, Department of Environmental Engineering, 58140 Sivas, Turkey.
J Hazard Mater. 2009 Apr 15;163(1):109-14. doi: 10.1016/j.jhazmat.2008.06.067. Epub 2008 Jun 26.
In this study, the effects of various operating conditions such as treatment time, DC current, initial pH, initial H(2)O(2) concentration and distance between the electrodes on treatability of landfill leachate by using electro-Fenton (EF) method were examined. The settling characteristics of waste sludge produced from the treatment were also determined. According to the results, EF method can be used efficiently for the treatment of landfill leachate by using the proper operating conditions. The best removal efficiencies were obtained when: treatment duration is 20 min, constant DC current value is 3A, H(2)O(2) concentration is 2000 mg L(-1) and the initial pH value is 3. For these conditions, 72% COD, 90% color, 87% PO(4)-P and 28% NH(4)-N removals were obtained. It was also observed that using electrode distance between 1.8 cm and 2.8 cm increases efficiency of the COD removal, significantly. Sedimentation characteristics of the waste sludge produced from the EF method is fairly good.
在本研究中，考察了处理时间、直流电流、初始pH值、初始过氧化氢浓度以及电极间距等各种操作条件对采用电芬顿（EF）法处理垃圾渗滤液的可处理性的影响。还测定了处理过程中产生的废弃污泥的沉降特性。结果表明，通过采用适当的操作条件，电芬顿法可有效地用于处理垃圾渗滤液。当处理时间为20分钟、恒定直流电流值为3A、过氧化氢浓度为2000mg/L且初始pH值为3时，可获得最佳去除效率。在这些条件下，化学需氧量（COD）去除率为72%，色度去除率为90%，磷酸根磷（PO₄-P）去除率为87%，氨氮（NH₄-N）去除率为28%。还观察到，电极间距在1.8厘米至2.8厘米之间时，可显著提高COD去除效率。电芬顿法产生的废弃污泥的沉降特性相当良好。
