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Microcontaminant degradation in municipal wastewater treatment plant secondary effluent by EDDS assisted photo-Fenton at near-neutral pH: An experimental design approach

Paper ID Volume ID Publish Year Pages File Format Full-Text
53851 46987 2015 9 PDF Available
Title
Microcontaminant degradation in municipal wastewater treatment plant secondary effluent by EDDS assisted photo-Fenton at near-neutral pH: An experimental design approach
Abstract

•EDDS as an iron chelating agent for photo-Fenton.•The system is evaluated in terms of degradation efficiency, H2O2 consumption and iron availability.•Experimental design in a solar simulator is accurately transferred to a pilot scale solar photo-reactor.•An approach for estimating near-optimal regions of operability is also demonstrated.

This work aims to evaluate the applicability of EDDS (ethylenediamine-N,N′-disuccinic acid) as an iron chelating agent for photo-Fenton treatment of municipal wastewater spiked with organic contaminants at near-neutral pH. A series of laboratory scale experiments are conducted under simulated sunlight in accordance with a central composite experimental design in order to define the most favorable conditions in terms of initial iron concentration (maintaining a molar ratio 1:2 of Fe:EDDS), H2O2 and pH. The system is evaluated in terms of degradation efficiency, H2O2 consumption and iron availability. The simulated system has been compared in terms of degradation efficiency with a 60 L compound parabolic collector (CPC), and significant correlation has been observed. An approach for estimating near-optimal regions of operability is also demonstrated.

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Keywords
Advanced oxidation processes (AOP); Iron complexes; Photo-Fenton; Municipal wastewater treatment
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Microcontaminant degradation in municipal wastewater treatment plant secondary effluent by EDDS assisted photo-Fenton at near-neutral pH: An experimental design approach
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 252, 1 September 2015, Pages 61–69
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us