Photochemical treatment (UV/O3+UV/H2O2) of waste gas emissions containing organic pollutants in pilot plant unit
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10251018" target="_blank" >RIV/61989100:27360/22:10251018 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27710/22:10251018
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S0957582022004256" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0957582022004256</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.psep.2022.05.032" target="_blank" >10.1016/j.psep.2022.05.032</a>
Alternative languages
Result language
angličtina
Original language name
Photochemical treatment (UV/O3+UV/H2O2) of waste gas emissions containing organic pollutants in pilot plant unit
Original language description
A continuous flow photochemical pilot plant unit containing a dry photolytic/photooxidation reactor UV185/ UV254/O3 and an aqueous photochemical UV254/H2O2 reactor was used to remove VOC from the waste gas stream with a high flow rate. The efficiency of this system was thoroughly studied through the control of reaction conditions, the detection of intermediates, and the analysis of reaction products during the degradation of styrene, xylene, and their mixture. The conversion of the model substances depends on the initial concentration of the pollutant, the flow rate, and the type of pollutant. The highest conversion after passing through the whole pilot plant unit was achieved at an initial pollutant concentration 50 ppmv and a flow rate 100 m3 center dot h-1, which is related to the residence time in the system. The conversion of styrene, xylene and their mixture after passing through the whole unit for the 100 m3 center dot h-1 flow rate was 74%, 46% and 52%, respectively. Although the first dry photolytic/photooxidation reactor using UV185/UV254/O3 was more efficient for styrene degradation, the aqueous photochemical UV254/H2O2 part was more suitable for xylene degradation. These experimental results are in the agreement with carbon balance, which confirmed the outlet air contained only unconverted model pollutant (styrene, xylene or their mixture) and CO2. Figures of merit were calculated in order to evaluate the price efficiency of the technology. This study presents an effective AOPs system for the degradation of VOCs from waste gas streams with a high flow rate and provides an insight into their degradation pathways. (c) 2022 Institution of Chemical Engineers. Published by Elsevier Ltd. All rights reserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EF17_049%2F0008419" target="_blank" >EF17_049/0008419: Support of cross-sectoral cooperation in the field of environmental pollutants reduction and waste recovery</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Process safety and environmental protection
ISSN
0957-5820
e-ISSN
1744-3598
Volume of the periodical
163
Issue of the periodical within the volume
July
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
274-282
UT code for WoS article
000821343900002
EID of the result in the Scopus database
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