期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 21, 期 21, 页码 12129-12134出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-014-2880-1
关键词
Advanced oxidation processes; Coagulation-flocculation; Fenton process; Phenol; Aquatic toxicity
资金
- Direccion General de Universidades e Investigacion de la Comunidad de Madrid, Research Network REMTAVARES [S0505/AMB-0395, S2009/AMB-1588]
The treatment of a non-biodegradable agrochemical wastewater has been studied by coupling of preliminary coagulation-flocculation step and further Fenton oxidation. High percentages of chemical oxygen demand (COD) removal (up to 58 %) were achieved in a first step using polyferric chloride as coagulant. This reduced significantly the amount of H2O2 required in the further Fenton oxidation. Using the stoichiometric amount relative to COD around 80 % of the remaining organic load was mineralized. The combined treatment allowed achieving the regional discharge limits of ecotoxicity at a cost substantially lower than the solution used so far where these wastewaters are managed as hazardous wastes.
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