Preethi V, Kalyani K S Parama, Iyappan K, Srinivasakannan C, Balasubramaniam N, Vedaraman N
Department of Chemical Engineering, A.C.Tech. Campus, Anna University-Chennai, Chennai 600 025, India.
J Hazard Mater. 2009 Jul 15;166(1):150-4. doi: 10.1016/j.jhazmat.2008.11.035. Epub 2008 Nov 21.
Ozonation of leather dye effluent for removal of color and COD reduction covering wide range in operating parameters forms the scope of the present work. The influence of parameters such as influent pH, ozone flow rate and initial effluent concentration on ozonation efficiency has been critically examined. It has been observed from the present investigation that a maximum of COD removal efficiency of 92% has been achieved under optimum operating conditions. Further the biodegradability index of the tannery effluent has increased from an initial value of 0.18 to 0.49 during ozonation indicating favorable adaptation of ozonation as a primer to the biochemical technique to enhance the efficiency of biochemical treatment.
本研究的范围是对皮革染料废水进行臭氧氧化，以去除颜色并降低化学需氧量（COD），同时涵盖广泛的操作参数范围。已严格考察了进水pH值、臭氧流速和初始废水浓度等参数对臭氧氧化效率的影响。从本次研究中观察到，在最佳操作条件下，COD去除效率最高可达92%。此外，制革废水的生物降解性指数在臭氧氧化过程中从初始值0.18提高到了0.49，这表明臭氧氧化作为生化技术的预处理手段有利于提高生化处理效率。
