Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations
<p dir="ltr">The treatment of waste gas (WG) containing dichloromethane (DCM) using advanced oxidation processes (AOPs) [UV and UV-TiO2], biological treatment (BT), and their combination (AOPs-BT) was tested. AOP tests were performed in an annular photo-reactor (APHR), while BT was c...
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2021
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| _version_ | 1864513553979932672 |
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| author | Fares Almomani (12585685) |
| author2 | Eldon R. Rene (5080691) María C. Veiga (11617213) Rahul R. Bhosale (6467102) Christian Kennes (11617216) |
| author2_role | author author author author |
| author_facet | Fares Almomani (12585685) Eldon R. Rene (5080691) María C. Veiga (11617213) Rahul R. Bhosale (6467102) Christian Kennes (11617216) |
| author_role | author |
| dc.creator.none.fl_str_mv | Fares Almomani (12585685) Eldon R. Rene (5080691) María C. Veiga (11617213) Rahul R. Bhosale (6467102) Christian Kennes (11617216) |
| dc.date.none.fl_str_mv | 2021-03-05T03:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.jhazmat.2020.123735 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Treatment_of_waste_gas_contaminated_with_dichloromethane_using_photocatalytic_oxidation_biodegradation_and_their_combinations/27951429 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Environmental engineering Dichloromethane Air pollution Hydroxyl radicals Photo-degradation Stirred tank bioreactor Process optimization |
| dc.title.none.fl_str_mv | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">The treatment of waste gas (WG) containing dichloromethane (DCM) using advanced oxidation processes (AOPs) [UV and UV-TiO2], biological treatment (BT), and their combination (AOPs-BT) was tested. AOP tests were performed in an annular photo-reactor (APHR), while BT was conducted in a continuous stirred tank bioreactor (CSTBR). The effects of gas flow rate (Q<sub>gas</sub>), inlet DCM concentration ([DCM]<sub>i</sub>), residence time (τ), photocatalyst loading (PH-C<sub>L</sub>) and % relative humidity (% RH) on the AOPs performance and the removal of DCM (�M<sub>r</sub>) were studied and optimized. The UV process exhibited �M<sub>r</sub> ≤ 12.5 % for tests conducted at a [DCM]<sub>i</sub> ≤ 0.45 g/m<sup>3</sup>, Q<sub>gas</sub> of 0.12 m<sup>3</sup>/h and τ of 27.6 s, respectively, and < 4 % when the [DCM]<sub>i</sub> ≥ 4.2 g/m<sup>3</sup>. The UV-TiO<sub>2</sub> achieved a �M<sub>r</sub> ≥ 71 ± 1.5 % at Q<sub>gas</sub> of 0.06 m<sup>3</sup>/h, [DCM]<sub>i</sub> of 0.45 g/m<sup>3</sup>, τ of 55.2 s, PH-C<sub>L</sub> of 10 g/m<sup>2</sup>, and %RH of 50, respectively. The BT process removed ∼97.6 % of DCM with an elimination capacity (EC) of 234.0 g/m<sup>3</sup>·h. Besides, the high �M<sub>r</sub> of ∼98.5 % in the UV-BT and 99.7 % in the UV-TiO<sub>2</sub>-BT processes confirms AOPs-BT as a promising technology for the treatment of recalcitrant compounds present in WG.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Hazardous Materials<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jhazmat.2020.123735" target="_blank">https://dx.doi.org/10.1016/j.jhazmat.2020.123735</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_2320fcb084329c0c4a385318eead343d |
| identifier_str_mv | 10.1016/j.jhazmat.2020.123735 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/27951429 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinationsFares Almomani (12585685)Eldon R. Rene (5080691)María C. Veiga (11617213)Rahul R. Bhosale (6467102)Christian Kennes (11617216)EngineeringChemical engineeringEnvironmental engineeringDichloromethaneAir pollutionHydroxyl radicalsPhoto-degradationStirred tank bioreactorProcess optimization<p dir="ltr">The treatment of waste gas (WG) containing dichloromethane (DCM) using advanced oxidation processes (AOPs) [UV and UV-TiO2], biological treatment (BT), and their combination (AOPs-BT) was tested. AOP tests were performed in an annular photo-reactor (APHR), while BT was conducted in a continuous stirred tank bioreactor (CSTBR). The effects of gas flow rate (Q<sub>gas</sub>), inlet DCM concentration ([DCM]<sub>i</sub>), residence time (τ), photocatalyst loading (PH-C<sub>L</sub>) and % relative humidity (% RH) on the AOPs performance and the removal of DCM (�M<sub>r</sub>) were studied and optimized. The UV process exhibited �M<sub>r</sub> ≤ 12.5 % for tests conducted at a [DCM]<sub>i</sub> ≤ 0.45 g/m<sup>3</sup>, Q<sub>gas</sub> of 0.12 m<sup>3</sup>/h and τ of 27.6 s, respectively, and < 4 % when the [DCM]<sub>i</sub> ≥ 4.2 g/m<sup>3</sup>. The UV-TiO<sub>2</sub> achieved a �M<sub>r</sub> ≥ 71 ± 1.5 % at Q<sub>gas</sub> of 0.06 m<sup>3</sup>/h, [DCM]<sub>i</sub> of 0.45 g/m<sup>3</sup>, τ of 55.2 s, PH-C<sub>L</sub> of 10 g/m<sup>2</sup>, and %RH of 50, respectively. The BT process removed ∼97.6 % of DCM with an elimination capacity (EC) of 234.0 g/m<sup>3</sup>·h. Besides, the high �M<sub>r</sub> of ∼98.5 % in the UV-BT and 99.7 % in the UV-TiO<sub>2</sub>-BT processes confirms AOPs-BT as a promising technology for the treatment of recalcitrant compounds present in WG.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Hazardous Materials<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jhazmat.2020.123735" target="_blank">https://dx.doi.org/10.1016/j.jhazmat.2020.123735</a></p>2021-03-05T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.jhazmat.2020.123735https://figshare.com/articles/journal_contribution/Treatment_of_waste_gas_contaminated_with_dichloromethane_using_photocatalytic_oxidation_biodegradation_and_their_combinations/27951429CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/279514292021-03-05T03:00:00Z |
| spellingShingle | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations Fares Almomani (12585685) Engineering Chemical engineering Environmental engineering Dichloromethane Air pollution Hydroxyl radicals Photo-degradation Stirred tank bioreactor Process optimization |
| status_str | publishedVersion |
| title | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| title_full | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| title_fullStr | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| title_full_unstemmed | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| title_short | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| title_sort | Treatment of waste gas contaminated with dichloromethane using photocatalytic oxidation, biodegradation and their combinations |
| topic | Engineering Chemical engineering Environmental engineering Dichloromethane Air pollution Hydroxyl radicals Photo-degradation Stirred tank bioreactor Process optimization |