Humic like substances for the treatment of scarcely soluble pollutants by mild photo-Fenton process

被引：15
作者：
Caram, Bruno [1 ]
Garcia-Ballesteros, Sara [2 ]
Santos-Juanes, Lucas [2 ]
Argues, Antonio [2 ]
Garcia-Einschlag, Fernando S. [1 ]
机构：
[1] Univ Nacl La Plata, Inst Invest Fisicoquim Teor & Aplicadas INIFTA, CCT La Plata CONICET, Diag 113 & 64, La Plata, Buenos Aires, Argentina
[2] Univ Politecn Valencia, Grp Proc Oxidac Avanzada, Dept Ingn Text & Papelera, Campus Alcoy, E-03801 Alcoy, Spain
来源：
CHEMOSPHERE | 2018年 / 198卷
关键词：
Thiabendazole; Photo-Fenton; Humic-like substances; EEM; PARAFAC; BIO-BASED SUBSTANCES; URBAN WASTE; WATER; PHOTODEGRADATION; OPTIMIZATION; REMEDIATION; AUXILIARIES; STRATEGIES; MATRIX; SOIL;
D O I：
10.1016/j.chemosphere.2018.01.074
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Humic-like substances (HLS) extracted from urban wastes have been tested as auxiliaries for the photo Fenton removal of thiabendazole (TBZ) under simulated sunlight. Experimental design methodology based on Doehlert matrices was employed to check the effects of hydrogen peroxide concentration, HLS amount as well as TBZ loading; this last parameter was studied in the range 25-100 mg/L, to include values below and above the limit of solubility at pH = 5. Very satisfactory results were reached when TBZ was above solubility if HLS and H2O2 amounts were high. This could be attributed to an interaction of HLS-TBZ that enhances the solubility of the pollutant. Additional evidence supporting the latter interaction was obtained by fluorescence measurements (excitation emission matrices) and parallel factor analysis (PARAFAC). (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：139 / 146
页数：8
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