Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Engenharia Sanitaria e Ambiental |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000601123 |
Resumo: | ABSTRACT This article investigates the performance behaviour of a small decentralized wastewater treatment plant with a capacity of up to 50 population equivalents powered by solar energy. The two-stage sequencing batch reactor (SBR) consists of a photovoltaic (PV) system to deliver energy, a battery storage for night operation and two reactor tanks. In the experimental period of 157 days, the wastewater inflow was increased from 3 to 4.5 and 6 m3.d−1, with sludge ages of 32 ± 2 d in the beginning and 21 ± 2 d in the end. The results corresponding to the different phases indicated high efficiency and stability of the system with domestic wastewater, reaching efficiencies of the test periods of 93 ± 2%, 86 ± 4% and 93 ± 6% for removal of chemical oxygen demand, nitrogen and phosphorus, respectively. In the last 51 days, aeration in the night was interrupted for three hours to save energy and study the behaviour of extended non-aerated phases. A shortening of the aeration phases can help to extend the lifetime of batteries and reduce operational costs, while limiting values in the outlet are still met. |
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Engenharia Sanitaria e Ambiental |
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Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regionstwo-stage SBRactivated sludgesolar energyintermittent aerationdecentralized wastewater treatmentABSTRACT This article investigates the performance behaviour of a small decentralized wastewater treatment plant with a capacity of up to 50 population equivalents powered by solar energy. The two-stage sequencing batch reactor (SBR) consists of a photovoltaic (PV) system to deliver energy, a battery storage for night operation and two reactor tanks. In the experimental period of 157 days, the wastewater inflow was increased from 3 to 4.5 and 6 m3.d−1, with sludge ages of 32 ± 2 d in the beginning and 21 ± 2 d in the end. The results corresponding to the different phases indicated high efficiency and stability of the system with domestic wastewater, reaching efficiencies of the test periods of 93 ± 2%, 86 ± 4% and 93 ± 6% for removal of chemical oxygen demand, nitrogen and phosphorus, respectively. In the last 51 days, aeration in the night was interrupted for three hours to save energy and study the behaviour of extended non-aerated phases. A shortening of the aeration phases can help to extend the lifetime of batteries and reduce operational costs, while limiting values in the outlet are still met.Associação Brasileira de Engenharia Sanitária e Ambiental - ABES2022-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000601123Engenharia Sanitaria e Ambiental v.27 n.6 2022reponame:Engenharia Sanitaria e Ambientalinstname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)instacron:ABES10.1590/s1413-415220210261info:eu-repo/semantics/openAccessDufner,LukasSelvam,Tamil Sakthi SilvaOtto,NikolaiNeuffer,DanielaSantos,Hélio Rodrigues doseng2022-12-02T00:00:00Zoai:scielo:S1413-41522022000601123Revistahttp://www.scielo.br/esaONGhttps://old.scielo.br/oai/scielo-oai.php||esa@abes-dn.org.br1809-44571413-4152opendoar:2022-12-02T00:00Engenharia Sanitaria e Ambiental - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)false |
dc.title.none.fl_str_mv |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
title |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
spellingShingle |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions Dufner,Lukas two-stage SBR activated sludge solar energy intermittent aeration decentralized wastewater treatment |
title_short |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
title_full |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
title_fullStr |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
title_full_unstemmed |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
title_sort |
Performance evaluation of a solar-powered wastewater treatment plant (two-stage SBR) operated in tropical climate regions |
author |
Dufner,Lukas |
author_facet |
Dufner,Lukas Selvam,Tamil Sakthi Silva Otto,Nikolai Neuffer,Daniela Santos,Hélio Rodrigues dos |
author_role |
author |
author2 |
Selvam,Tamil Sakthi Silva Otto,Nikolai Neuffer,Daniela Santos,Hélio Rodrigues dos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Dufner,Lukas Selvam,Tamil Sakthi Silva Otto,Nikolai Neuffer,Daniela Santos,Hélio Rodrigues dos |
dc.subject.por.fl_str_mv |
two-stage SBR activated sludge solar energy intermittent aeration decentralized wastewater treatment |
topic |
two-stage SBR activated sludge solar energy intermittent aeration decentralized wastewater treatment |
description |
ABSTRACT This article investigates the performance behaviour of a small decentralized wastewater treatment plant with a capacity of up to 50 population equivalents powered by solar energy. The two-stage sequencing batch reactor (SBR) consists of a photovoltaic (PV) system to deliver energy, a battery storage for night operation and two reactor tanks. In the experimental period of 157 days, the wastewater inflow was increased from 3 to 4.5 and 6 m3.d−1, with sludge ages of 32 ± 2 d in the beginning and 21 ± 2 d in the end. The results corresponding to the different phases indicated high efficiency and stability of the system with domestic wastewater, reaching efficiencies of the test periods of 93 ± 2%, 86 ± 4% and 93 ± 6% for removal of chemical oxygen demand, nitrogen and phosphorus, respectively. In the last 51 days, aeration in the night was interrupted for three hours to save energy and study the behaviour of extended non-aerated phases. A shortening of the aeration phases can help to extend the lifetime of batteries and reduce operational costs, while limiting values in the outlet are still met. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000601123 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000601123 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1413-415220210261 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental - ABES |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental - ABES |
dc.source.none.fl_str_mv |
Engenharia Sanitaria e Ambiental v.27 n.6 2022 reponame:Engenharia Sanitaria e Ambiental instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) instacron:ABES |
instname_str |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
instacron_str |
ABES |
institution |
ABES |
reponame_str |
Engenharia Sanitaria e Ambiental |
collection |
Engenharia Sanitaria e Ambiental |
repository.name.fl_str_mv |
Engenharia Sanitaria e Ambiental - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
repository.mail.fl_str_mv |
||esa@abes-dn.org.br |
_version_ |
1754213197814956032 |