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2006•Journal of Nanchang UniversityRequires access

The Treatment of M-Cresol in Water by Using UV/Fenton Process

Weiwei Yan

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Abstract

In this paper,the additional amount of H_2O_2,FeSO_4,pH,and concentration of wastewater have effect on the COD removals in treating simulated m-Cresol water by UV/Fenton process are investigated.The optimum con ditions are determined trough a large number of experiments: pH is 4.0,[H_2O_2]/[Fe~(2+)] is 15,the time of Fenton and ultraviolet rays reacting is about 60min.when the initial water's concentration is 251 mg/L,the clearance o f COD is about 80% by using UV/Fenton process.For the better removal ratio,the clearance would be 90.5% if TiO_2 is added.Finally,the water is treated by C a(OH)_2 flocculation,and the clearance is 92.5%.

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What this paper is about

In this paper,the additional amount of H_2O_2,FeSO_4,pH,and concentration of wastewater have effect on the COD removals in treating simulated m-Cresol water by UV/Fenton process are investigated.The optimum con ditions are determined trough a large number of experiments: pH is 4.0,[H_2O_2]/[Fe~(2+)] is 15,the time of Fenton and ultraviolet rays reacting is about 60min.when the initial water's concentration is 251 mg/L,the clearance o f COD is about 80% by using UV/Fenton process.For the better removal ratio,the clearance would be 90.5% if TiO_2 is added.Finally,the water is treated by C a(OH)_2 flocculation,and the clearance is 92.5%.

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Available abstract

In this paper,the additional amount of H_2O_2,FeSO_4,pH,and concentration of wastewater have effect on the COD removals in treating simulated m-Cresol water by UV/Fenton process are investigated.The optimum con ditions are determined trough a large number of experiments: pH is 4.0,[H_2O_2]/[Fe~(2+)] is 15,the time of Fenton and ultraviolet rays reacting is about 60min.when the initial water's concentration is 251 mg/L,the clearance o f COD is about 80% by using UV/Fenton process.For the better removal ratio,the clearance would be 90.5% if TiO_2 is added.Finally,the water is treated by C a(OH)_2 flocculation,and the clearance is 92.5%.

Key concepts: Chemistry, Ultraviolet, Cresol, Wastewater, Flocculation, Nuclear chemistry, Water treatment, Advanced oxidation process

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