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Application and performance evaluation of a cost-effective vis- LED based fluidized bed reactor for the treatment of emerging contaminants
Anupama Surenjan, ,
Published in Elsevier Ltd
2019
PMID: 31059961
Volume: 228
   
Pages: 629 - 639
Abstract
Visible light induced photocatalysis is considered as one of the most potential technologies which can achieve new levels of sustainability in water treatment. The current study explores the performance of immobilized visible light active catalyst on inert media for light driven catalysis of pharmaceuticals. These coated media is used in a continuous flow fluidized column reactor equipped with spirally arranged visible Light Emitting Diodes (LEDs)as irradiation source. The treatment efficiency of the system is evaluated for the removal of pharmaceutical drugs such as carbamazepine, diclofenac and ibuprofen. For the present study, system parameters such as light intensity and flow rate are optimized for maximum removal rate. The system shows complete elimination of the pharmaceuticals under the given experimental conditions. Complete mineralization of the target compounds are confirmed by TOC analysis. Recyclability is an important attribute for full scale commercialization of a treatment technology. An investigation on the reusability study of the photocatalyst displayed no significant reduction in the removal efficiency for a run of six cycles, hence rendering the photocatalyst reusable. The results acquired indicate an immense potential for scaling up the photoreactor as a sustainable tertiary treatment technology in water treatment plants. © 2019
About the journal
JournalData powered by TypesetChemosphere
PublisherData powered by TypesetElsevier Ltd
ISSN00456535
Open AccessNo
Concepts (56)
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    Amides
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    Catalysis
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    Chemical reactors
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    Computer software reusability
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    Cost effectiveness
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    Drug products
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    Efficiency
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    Fluidization
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    Fluidized beds
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    Light emitting diodes
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    Reusability
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    Titanium dioxide
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    Water treatment
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    Continuous flows
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    EMERGING POLLUTANTS
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    Experimental conditions
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    FLUIDIZED BED REACTORS
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    Pharmaceutical drugs
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    POTENTIAL TECHNOLOGIES
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    Treatment technologies
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    VISIBLE LIGHT INDUCED PHOTOCATALYSIS
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    Light
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    CARBAMAZEPINE
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    Diclofenac
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    Ibuprofen
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    Drug
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    Catalyst
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    CHEMICAL POLLUTANT
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    Electrode
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    Equipment
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    Experimental study
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    Inorganic compound
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    Light intensity
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    Performance assessment
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    Pollutant removal
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    WATER TREATMENT PLANT
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    Article
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    Flow rate
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    Immobilization
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    Mineralization
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    Photocatalysis
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    Chemistry
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    Cost benefit analysis
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    Devices
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    Economics
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    Equipment design
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    Photochemistry
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    Procedures
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    Water management
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    Water pollutant
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    CARBAMAZEPINE
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    COST-BENEFIT ANALYSIS
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    Pharmaceutical preparations
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    Photochemical processes
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    Water pollutants, chemical
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    Water purification