Pre-industrial-scale Combined Solar Photo-Fenton and Immobilized Biomass Activated-Sludge Biotreatment

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• 作者：I. Oller ; S. Malato ; J. A. S&aacute ; nchez-Pé ; rez ; M. I. Maldonado ; W. Gernjak ; L. A. Pé ; rez-Estrada ; J. A. Muñ ; oz ; C. Ramos ; C. Pulgarí ; n
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2007
• 出版时间：November 7, 2007
• 年：2007
• 卷：46
• 期：23
• 页码：7467 - 7475
• 全文大小：467K
• 年卷期：v.46,no.23(November 7, 2007)
• ISSN：1520-5045

文摘

This paper reports on upscaling of a new technology combining solar photo-Fenton and aerobic biologicalprocesses to successfully treat a saline industrial wastewater containing around 600 mg L^-1 of anon-biodegradable compound (-methylphenylglycine, MPG) and dissolved organic carbon (DOC) of between400 and 600 mg L^-1. Pilot-plant tests were used in designing this demonstration hybrid solar photocatalytic-biological plant with a 4 m³ daily treatment capacity. It consists of a solar photo-Fenton reactor with 100 m²of solar compound parabolic collectors (CPCs) and an aerobic biological treatment plant based on animmobilized-biomass activated-sludge reactor (1 m³). The catalyst concentration was Fe²⁺ = 20 mg L^-1. Theoverall efficiency in the combined system was around 95% mineralization. 50% of the initial DOC wasdegraded in the photo-Fenton pretreatment, and 45% was removed in the aerobic biological treatment.