Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes

The main objective of this study is to optimize a two-step treatment for mature landfill leachate consisting of electrocoagulation (EC) followed by Fenton or UVA-LED photo-Fenton processes aiming to provide a more efficient and feasible alternative treatment strategy that also increases biodegradabi...

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Authors: Tejera Tejo, Javier, Hermosilla Redondo, María Daphne, Gascó, Antonio, Miranda Carreño, Rubén, Alonso, Víctor, Negro Álvarez, Carlos Manuel, Blanco Suárez, María Ángeles
Format: article
Publication Date:2021
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/6749
Online Access:https://hdl.handle.net/20.500.14352/6749
Access Level:Open access
Keyword:66.0
Biodegradability enhancement
Electrocoagulation Fenton treatment
UVA-LED photo-Fenton treatment
Mature landfill leachate
Industria del papel
Ingeniería química
Química industrial
3312.13 Tecnología de la Madera
3303 Ingeniería y Tecnología Químicas
id ES_0e4db4f15abb19a71b8b0bfbaf48eeba
oai_identifier_str oai:docta.ucm.es:20.500.14352/6749
network_acronym_str ES
network_name_str España
repository_id_str
spelling Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processesTejera Tejo, JavierHermosilla Redondo, María DaphneGascó, AntonioMiranda Carreño, RubénAlonso, VíctorNegro Álvarez, Carlos ManuelBlanco Suárez, María Ángeles66.0Biodegradability enhancementElectrocoagulation Fenton treatmentUVA-LED photo-Fenton treatmentMature landfill leachateIndustria del papelIngeniería químicaQuímica industrial3312.13 Tecnología de la Madera3303 Ingeniería y Tecnología QuímicasThe main objective of this study is to optimize a two-step treatment for mature landfill leachate consisting of electrocoagulation (EC) followed by Fenton or UVA-LED photo-Fenton processes aiming to provide a more efficient and feasible alternative treatment strategy that also increases biodegradability and decreases conductivity. Although 5 mA cm−2 EC is cheaper than 10 mA cm−2 EC per kg of removed COD (0.63 vs. 0.89 € kgCOD−1), it achieved the half total COD removal (13% compared to 26%), and the low residual iron concentration (100 mg L−1) that remained at the end of the process made necessary a long treatment time to perform the posterior Fenton (48 h) or UVA-LED photo-Fenton (6 h) process. When EC was performed at 10 mA cm−2, the residual iron concentration (220 mg L−1) was high enough to reduce treatment time by one half for both Fenton processes. Consequently, treatment cost decreases from 5.91 to 3.48 € kgCOD−1 for the EC + UVA-LED photo-Fenton ([H2O2]/COD = 1.063) treatment combination; whereas it slightly decreases from 1.68 to 1.61 € kgCOD−1 for the alternative EC + conventional Fenton combination. In both cases, total COD removal was around 87%. In addition, SUVA removal was >40%, conductivity was reduced about 20–30%, and biodegradability (BOD5/COD) increased over 0.3.ElsevierUniversidad Complutense de Madrid20212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/6749reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/67492026-06-02T12:44:21Z
dc.title.none.fl_str_mv Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
title Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
spellingShingle Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
Tejera Tejo, Javier
66.0
Biodegradability enhancement
Electrocoagulation Fenton treatment
UVA-LED photo-Fenton treatment
Mature landfill leachate
Industria del papel
Ingeniería química
Química industrial
3312.13 Tecnología de la Madera
3303 Ingeniería y Tecnología Químicas
title_short Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
title_full Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
title_fullStr Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
title_full_unstemmed Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
title_sort Treatment of mature landfill leachate by electrocoagulation followed by Fenton or UVA-LED photo-Fenton processes
dc.creator.none.fl_str_mv Tejera Tejo, Javier
Hermosilla Redondo, María Daphne
Gascó, Antonio
Miranda Carreño, Rubén
Alonso, Víctor
Negro Álvarez, Carlos Manuel
Blanco Suárez, María Ángeles
author Tejera Tejo, Javier
author_facet Tejera Tejo, Javier
Hermosilla Redondo, María Daphne
Gascó, Antonio
Miranda Carreño, Rubén
Alonso, Víctor
Negro Álvarez, Carlos Manuel
Blanco Suárez, María Ángeles
author_role author
author2 Hermosilla Redondo, María Daphne
Gascó, Antonio
Miranda Carreño, Rubén
Alonso, Víctor
Negro Álvarez, Carlos Manuel
Blanco Suárez, María Ángeles
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 66.0
Biodegradability enhancement
Electrocoagulation Fenton treatment
UVA-LED photo-Fenton treatment
Mature landfill leachate
Industria del papel
Ingeniería química
Química industrial
3312.13 Tecnología de la Madera
3303 Ingeniería y Tecnología Químicas
topic 66.0
Biodegradability enhancement
Electrocoagulation Fenton treatment
UVA-LED photo-Fenton treatment
Mature landfill leachate
Industria del papel
Ingeniería química
Química industrial
3312.13 Tecnología de la Madera
3303 Ingeniería y Tecnología Químicas
description The main objective of this study is to optimize a two-step treatment for mature landfill leachate consisting of electrocoagulation (EC) followed by Fenton or UVA-LED photo-Fenton processes aiming to provide a more efficient and feasible alternative treatment strategy that also increases biodegradability and decreases conductivity. Although 5 mA cm−2 EC is cheaper than 10 mA cm−2 EC per kg of removed COD (0.63 vs. 0.89 € kgCOD−1), it achieved the half total COD removal (13% compared to 26%), and the low residual iron concentration (100 mg L−1) that remained at the end of the process made necessary a long treatment time to perform the posterior Fenton (48 h) or UVA-LED photo-Fenton (6 h) process. When EC was performed at 10 mA cm−2, the residual iron concentration (220 mg L−1) was high enough to reduce treatment time by one half for both Fenton processes. Consequently, treatment cost decreases from 5.91 to 3.48 € kgCOD−1 for the EC + UVA-LED photo-Fenton ([H2O2]/COD = 1.063) treatment combination; whereas it slightly decreases from 1.68 to 1.61 € kgCOD−1 for the alternative EC + conventional Fenton combination. In both cases, total COD removal was around 87%. In addition, SUVA removal was >40%, conductivity was reduced about 20–30%, and biodegradability (BOD5/COD) increased over 0.3.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01
2021
2021-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/6749
url https://hdl.handle.net/20.500.14352/6749
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403387841216512
score 15,300719

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