Evaluation of flow-rate dynamics in the simultaneous photocatalytic treatment of multichlorinated substituted phenols in continuous-flow systems

The project investigated the simultaneous degradation of chlorophenols dissolved in aqueous systems. The photocatalysis advanced oxidation process was the technology applied to achieve treatment. Chemical behavioural tracking was performed using the chloride dehalogenation sequence dynamics. The stu...

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Bibliographic Details
Published inWater science and technology Vol. 74; no. 9; pp. 2211 - 2224
Main Authors Khuzwayo, Z, Chirwa, E M N
Format Journal Article
LanguageEnglish
Published England IWA Publishing 01.11.2016
Subjects
Adsorption
Batch processes
Catalysis
Catalysts
Chlorination
Chlorophenol
Computational fluid dynamics
Continuous flow
Data processing
Degradation
Dehalogenation
Dynamics
Evaluation
Intermediates
Kinetics
Liquid flow
Matrices (mathematics)
Models, Theoretical
Nucleotide sequence
Organic chemicals
Oxidation
Oxidation process
Oxidation-Reduction
Parameter estimation
Phenols
Phenols - chemistry
Photocatalysis
Photochemical Processes
Photodegradation
Profiles
Reaction kinetics
Titanium
Titanium - chemistry
Tracking
VOCs
Volatile organic compounds
Waste Disposal, Fluid - methods
Water
Water Pollutants, Chemical - chemistry
South Africa
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Summary:The project investigated the simultaneous degradation of chlorophenols dissolved in aqueous systems. The photocatalysis advanced oxidation process was the technology applied to achieve treatment. Chemical behavioural tracking was performed using the chloride dehalogenation sequence dynamics. The study recorded reductive dehalogenation chemical transformation kinetics of multi-substituted chlorinated phenolics in continuous flow reactor systems. This was performed by manipulation of liquid flow-rates in the photocatalytic oxidations process using suspended and immobilised catalyst applications. A modified Langmuir-Hinshelwood kinetic model was proposed that explained the oxidation transformational behaviour of the dehalogenation process derived intermediates. Complementary photocatalytic performance matrices were established for each flow regime; model parameters were calculated and estimated for behavioural profiles of all compounds under scrutiny.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2016.411