Ferrioxalate-induced solar photo-Fenton treatment of natural rubber latex wastewaters

被引：4
作者：
Ashok, Lekshmi [1 ]
Adishkumar, S. [1 ]
Banu, J. Rajesh [1 ]
Yeom, Ick Tae [2 ]
机构：
[1] Anna Univ, Reg Ctr, Dept Civil Engn, Tirunelveli, India
[2] Sungkyunkwan Univ, Dept Civil & Environm Engn, Suwon, South Korea
来源：
WATER QUALITY RESEARCH JOURNAL OF CANADA | 2015年 / 50卷 / 04期
关键词：
central composite design (CCD); ferrioxalate; latex wastewater; solar photocatalytic reactor; solar photo Fenton; WASTE-WATER TREATMENT; CATALYTIC DEGRADATION;
D O I：
10.2166/wqrjc.2015.054
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
This study evaluated a ferrioxalate-induced solar photo-Fenton process for natural rubber latex wastewater treatment. The reaction was carried out in a laboratory-scale solar photo-Fenton plug flow baffle reactor. An optimization study was performed using a central composite experimental design including the following variables: pH, initial concentrations of H2O2, Fe2+, and oxalic acid. The photocatalytic degradation efficiency was determined by the analysis of chemical oxygen demand (COD) removal. Under the optimum conditions of pH = 4, Fe2+ = 1.3 g/L, oxalic acid = 2.25 g/L, H2O2 = 82.5 g/L, and solar irradiation time of 6 hours, the COD removal efficiency was 99%. Treatment of latex wastewater by ferrioxalate-induced solar photo-Fenton process increased biodegradability ratio from 0.36 to 0.7 in 2 hours. The overall cost of ferrioxalate-induced solar photo-Fenton oxidation for the treatment of 5 m(3) of latex wastewater per day was estimated to be US$ 85/m(3).
引用
收藏
页码：349 / 358
页数：10
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