Combining micelle-clay sorption to solar photo-Fenton processes for domestic wastewater treatment

被引:19
作者
Brienza, Monica [1 ]
Nir, Shlomo [2 ]
Plantard, Gael [3 ]
Goetz, Vincent [3 ]
Chiron, Serge [1 ]
机构
[1] Univ Montpellier, UMR HydroSci 5569, IRD, Montpellier, France
[2] Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, IL-7610001 Rehovot, Israel
[3] PROMES CNRS UPR 8521, Perpignan, France
关键词
Water treatment; Micelle-montmorillonite; AOPs; Bacteria; Emerging contaminants; ORGANIC MICROPOLLUTANTS; ESCHERICHIA-COLI; REMOVAL; DISINFECTION; OXIDATION; PURIFICATION; COMPOSITES; FILTRATION; BACTERIA; RISK;
D O I
10.1007/s11356-018-2491-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A tertiary treatment of effluent from a biological domestic wastewater treatment plant was tested by combining filtration and solar photocatalysis. Adsorption was carried out by a sequence of two column filters, the first one filled with granular activated carbon (GAC) and the second one with granulated nano-composite of micelle-montmorillonite mixed with sand (20:100, w/w). The applied solar advanced oxidation process was homogeneous photo-Fenton photocatalysis using peroxymonosulfate (PMS) as oxidant agent. This combination of simple, robust, and low-cost technologies aimed to ensure water disinfection and emerging contaminants (ECs, mainly pharmaceuticals) removal. The filtration step showed good performances in removing dissolved organic matter and practically removing all bacteria such as Escherichia coli and Enterococcus faecalis from the secondary treated water. Solar advanced oxidation processes were efficient in elimination of trace levels of ECs. The final effluent presented an improved sanitary level with acceptable chemical and biological characteristics for irrigation.
引用
收藏
页码:18971 / 18978
页数:8
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