Photocatalytic membrane processes, and respective modelling, for removal of pharmaceutical residues in wastewaters. A case study with 2-[2, 6-(dichlorophenyl) amino] phenyl acetic acid as model molecule
Articolo
Data di Pubblicazione:
2017
Citazione:
Photocatalytic membrane processes, and respective modelling, for removal of pharmaceutical residues in wastewaters. A case study with 2-[2, 6-(dichlorophenyl) amino] phenyl acetic acid as model molecule / I.R. Bellobono, F. Groppi. - In: CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY. - ISSN 2452-2236. - 6(2017 Aug), pp. 69-77. [10.1016/j.cogsc.2017.06.007]
Abstract:
Non linear modelling of data in photomineralization kinetics of organic micropollutants, by photocatalytic membranes immobilizing semiconductors (TiO2 particularly) has been previously applied to methane, phenol and to 2,4-dichlorophenol as model molecules, by using a four parameters kinetic modelling based on substrate disappearance and total organic carbon (TOC) in laboratory scale experiments, as a function of initial concentration of substrate and of irradiance.
In the present paper, the photocatalytic degradation of diclofenac as model molecule was investigated in a pilot plant module, fitted with 2–3 concentric membranes. Maximum allowable quantum efficiencies corresponded to equal distances between 3 membranes immobilizing photocatalyst. This arrangement fully behaves as if a photocatalyst nanopowder would be homogeneously suspended in the reactor, but obviating all drawbacks of a nanopowder suspension.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
photocatalytic membranes; TiO2; degradation of diclofenac; pilot plant module; photocatalyst nanopowder
Elenco autori:
I.R. Bellobono, F. Groppi
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