Advanced Treatment of Biochemical Treated Coking Wastewater by Ozonation Process

Abstract:

Advanced treatment of biochemical treated coking wastewater was studied experimentally with ozonation process. The effects of initial pH value, ozone concentration, reaction temperature, and reaction time on the COD and color removal rate were investigated. The results showed that ozonation was an effective method for advanced treatment of biochemical treated coking wastewater. The increasing of initial pH value, ozone concentration, reaction temperature, and reaction time has enhanced the removal rate of COD and color. Meanwhile, the results also revealed that the maximal COD and color removal rate of 69.65% and 92.27% could be reached under the optimal conditions of the initial pH value is 10.5, ozone concentration is 150 mg/L, reaction temperature is 298 K, and reaction time is 30 min.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 2515-2520
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.2515
• Online since: August 2013
• Authors: De Min Yang, Jian Mei Yuan
• Keywords: Advanced Treatment, Coking Wastewater, Hydroxyl Radical, Ozonation

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