Determination of photostability, biocompatibility and efficiency as photo-Fenton auxiliaries of three different types of soluble bio-based substances (SBO)

被引：20
作者：
Gomis, Juan [1 ]
Goncalves, Mayara G. [2 ]
Vercher, Rosa F. [1 ]
Sabater, Consuelo [3 ]
Castillo, Maria-Angeles [3 ]
Prevot, Alessandra Bianco [4 ]
Amat, Ana M. [1 ]
Arques, Antonio [1 ]
机构：
[1] Univ Politecn Valencia, Grp Proc Oxidac Avanzada, E-03801 Alcoy, Spain
[2] U Tecnol Fed Parana, BR-4900 Curitiba, Parana, Brazil
[3] Univ Politecn Valencia, Dpto Biotecnol, E-46022 Valencia, Spain
[4] Univ Turin, Dipartimento Chim, Turin, Italy
来源：
CATALYSIS TODAY | 2015年 / 252卷
关键词：
SBO; Photostability; Photo-Fenton; Biocompatibility; ADVANCED OXIDATION PROCESSES; BIOORGANIC SUBSTANCES; MILD CONDITIONS; WASTE; ACID; PHOTODEGRADATION; CHEMICALS; MIXTURE; FATE;
D O I：
10.1016/j.cattod.2014.10.015
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The aim of this work is to determine the photostability biocompatibility and efficiency of water soluble bio-based substances (SBO) in photo-oxidative processes for wastewater treatment. Three batches of SBO, isolated from different sources, have been investigated. Differences in the functional groups present in these substances can explain major trends in their physical/chemical properties. Bioassays have proven those materials to be non-toxic but to show poor biodegradability. Their ability to enhance a photo-Fenton process at milder pH (5.2) has been investigated using a mixture of emerging compounds in wastewaters. All the tested SBO were able to remove all pollutants in less than one hour irradiation, and the best results were obtained with those substances showing higher hydrophilic/hydrophobic ratio. Moreover, although SBOs themselves undergo a slight oxidation, no relevant negative effect has been observed for their use in wastewater treatment. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：177 / 183
页数：7
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