A Comparative Study: Degradation of 2, 5-Dichlorophenol in Wastewater and Distilled Water by Ozone and Ozone-UV. (3rd May 2016)

• Record Type: Journal Article
• Authors: Alexander, Jacqueline C.; Ramírez-Cortina, Clementina R.
• Is Part Of: Ozone: science and engineering. Volume 38:Number 3(2016)
• Page Start: 181
• Page End: 193
• Publication Date: 2016-05-03
• Subjects: Ozone -- Biodegradation -- Degradation -- Dichlorophenol -- Oxidation and Wastewater Treatment -- Ozone-UV -- Toxicity; Ozone -- Periodicals; 665.89
• DOI: 10.1080/01919512.2015.1113853
• Languages: English
• ISSNs: 0191-9512

Abstract

ABSTRACT: The effectiveness of ozone and ozone-UV processes on effluents containing chlorophenol was evaluated. Experiments were performed using 3.06 mM of 2, 5-dichlorophenol in distilled water and wastewater at pH 7 with ozone dose of 37 mg/L. An ozone dose of 1.2 g/h was effective in completely degrading 2, 5-dichlorophenol and reducing the toxicity of its by-products. Overall, ozone-UV process was more effective in the oxidation of 2, 5-DCP. Ozone-UV treatment of wastewater showed the highest mineralization (53%), dechlorination (100%), COD removal (75%), and biodegradability (BOD5 /COD = 0.85). The organic/inorganic matters in wastewater seem to have a positive effect on the oxidation of 2, 5-DCP and supports the use of ozone and ozone-UV processes for industrial effluent treatment.