Gaseous and liquid effluents treatment in bubble column reactors by advanced oxidation processes: A review

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Vanessa N. Lima (Author) Other; Carmen Rodrigues (Author) FEUP; Ricardo A. C. Borges (Author) Other; Luís M. Madeira (Author) FEUP

Journal

Title: Critical Reviews in Environmental Science and Technology

Vol. 48 No. 16-18

Pages: 950-986

ISSN: 1064-3389

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 8 Citations

Associated Projects

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Other information

Authenticus ID: P-00P-WBK

DOI: 10.1080/10643389.2018.1493335

Abstract (EN): This review aims to provide insight and highlight recent research trends about the treatment of gaseous and liquid effluents by advanced oxidation processes (AOPs) in bubble column reactors (BCRs), which has become an important technology to ensure efficient degradation of different types of pollutants. UV/H2O2, Fenton and photo-Fenton processes have been applied in BCRs for pollutants removal from gas streams, namely containing NO, Hg0, SO2 and VOCs. In such a case, degradation is carried out in the liquid phase, while bubbling promotes an efficient mass transfer of the contaminants from the gas to the liquid before oxidation. This reactor configuration was however also used to remove pollutants present in liquid effluents by Fenton, electro-Fenton, as well as ozonation, which has been extensively studied; for that reason, only a summary view of BCRs application in ozonation is presented. In this case, a good mass transfer of the oxidant (O3), present in the gas stream, is required before oxidation in the polluted liquid phase. In this review, the main features that should be taken into account in the application of different homogeneous AOPs in BCRs are addressed. The effects of determining factors like temperature, pH, oxidant and catalyst dose or radiation power are also analyzed, with some relevant illustrative examples.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 48