Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000100015 |
Resumo: | Anaerobic digestion is an important alternative for domestic wastewater treatment, especially in warm climate regions. Two full-scale anaerobic schemes were investigated: septic tank combined with anaerobic filter (S T A NF) and conventional UASB reactors. Treated effluents from these systems were subjected to disinfection by chlorination. The operational performance of 56 full-scale plants (36 S T A NF and 20 UASB) provided a realistic view. Findings showed that the plants operated with low OLR (< 2.0 kg COD/m³.day). Despite this, the removal of organic material was below values suggested by the literature (around 60% for COD). A removal of 4.0 Log10 units of total coliform and E. coli can be reached with residual chlorine (R CL) of at least 2.0 Cl-Cl2/l. Although UASB plants have performed better, improvement of maintenance is needed in both treatment configurations. |
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Brazilian Journal of Chemical Engineering |
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Septic tank combined with anaerobic filter and conventional UASB: results from full scale plantsAnaerobic treatmentLow-cost technologyPerformance comparisonAnaerobic digestion is an important alternative for domestic wastewater treatment, especially in warm climate regions. Two full-scale anaerobic schemes were investigated: septic tank combined with anaerobic filter (S T A NF) and conventional UASB reactors. Treated effluents from these systems were subjected to disinfection by chlorination. The operational performance of 56 full-scale plants (36 S T A NF and 20 UASB) provided a realistic view. Findings showed that the plants operated with low OLR (< 2.0 kg COD/m³.day). Despite this, the removal of organic material was below values suggested by the literature (around 60% for COD). A removal of 4.0 Log10 units of total coliform and E. coli can be reached with residual chlorine (R CL) of at least 2.0 Cl-Cl2/l. Although UASB plants have performed better, improvement of maintenance is needed in both treatment configurations.Brazilian Society of Chemical Engineering2013-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000100015Brazilian Journal of Chemical Engineering v.30 n.1 2013reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322013000100015info:eu-repo/semantics/openAccessSilva,F. J. A. daLima,M. G. S.Mendonça,L. A. R.Gomes,M. J. T. L.eng2013-03-01T00:00:00Zoai:scielo:S0104-66322013000100015Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2013-03-01T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
title |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
spellingShingle |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants Silva,F. J. A. da Anaerobic treatment Low-cost technology Performance comparison |
title_short |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
title_full |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
title_fullStr |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
title_full_unstemmed |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
title_sort |
Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants |
author |
Silva,F. J. A. da |
author_facet |
Silva,F. J. A. da Lima,M. G. S. Mendonça,L. A. R. Gomes,M. J. T. L. |
author_role |
author |
author2 |
Lima,M. G. S. Mendonça,L. A. R. Gomes,M. J. T. L. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva,F. J. A. da Lima,M. G. S. Mendonça,L. A. R. Gomes,M. J. T. L. |
dc.subject.por.fl_str_mv |
Anaerobic treatment Low-cost technology Performance comparison |
topic |
Anaerobic treatment Low-cost technology Performance comparison |
description |
Anaerobic digestion is an important alternative for domestic wastewater treatment, especially in warm climate regions. Two full-scale anaerobic schemes were investigated: septic tank combined with anaerobic filter (S T A NF) and conventional UASB reactors. Treated effluents from these systems were subjected to disinfection by chlorination. The operational performance of 56 full-scale plants (36 S T A NF and 20 UASB) provided a realistic view. Findings showed that the plants operated with low OLR (< 2.0 kg COD/m³.day). Despite this, the removal of organic material was below values suggested by the literature (around 60% for COD). A removal of 4.0 Log10 units of total coliform and E. coli can be reached with residual chlorine (R CL) of at least 2.0 Cl-Cl2/l. Although UASB plants have performed better, improvement of maintenance is needed in both treatment configurations. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03-01 |
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=S0104-66322013000100015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000100015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322013000100015 |
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 |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.30 n.1 2013 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213173894840320 |