期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 244, 期 -, 页码 195-203出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2012.11.015
关键词
AOP; Biological process; Wastewater treatment; Cost assessment; Scale effect
资金
- Junta de Andalucia (Andalusian Regional Government) [P08-RNM-03772]
- European Regional Development Fund (ERDF)
- Ministerio de Educacion, Cultura y Deporte [AP2010-3218]
The aim of this paper is to carry out an economic assessment on a solar photo-Fenton/MBR combined process to treat industrial ecotoxic wastewater. This study focuses on the impact of the contamination present in wastewater, the photochemical oxidation, the use of an MBR as biological process and the plant size on operating and amortization costs. As example of ecotoxic pollutant, a mixture of five commercial pesticides commonly used in the Mediterranean area has been used, ranging from 500 mg/L to 50 mg/L, expressed as dissolved organic carbon concentration. The economic evaluation shows that (i) the increase in pollution load does not always involve an increase in photo-Fenton costs because they also depend on organic matter mineralization; (ii) the use of an MBR process permits lower photochemical oxidation requirements than other biological treatments, resulting in approximately 20% photo-Fenton cost reduction for highly polluted wastewater; (iii) when pollution load decreases, the contribution of reactant consumption to the photo-Fenton process costs increase with regard to amortization costs; (iv) 30% total cost reduction can be gained treating higher daily volumes, obtaining competitive costs that vary from 1.1-1.9(sic)/m(3), depending on the pollution load. (C) 2012 Elsevier B.V. All rights reserved.
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