Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.2166/ws.2021.093 http://hdl.handle.net/11449/209303 |
Resumo: | This study investigated the impact of sedimentation on rainwater storage system using a case study at the Ikorodu area of Lagos state, a rural area in Nigeria. In this investigation, the proportions of Escherichia coli (E. coli) that were settleable (due to sedimentation) and those that were at the free phase have been studied. Water samples were collected from different depths in the inspected rainwater storage tank at two different periods (i.e. rainy and dry periods) for 20 days. The samples collected from these periods have been analysed for physical and microbial measures before passing it through the serial filters with pore sizes of 500 mu m, 100 mu m, 10 mu m and 1.5 mu m to measure the retained particle mass. From the results, it was observed that: (1) the water quality at the free-phase zone was better than that at the tank's bottom; (2) the settleable bacteria rapidly sinked to bottom; (3) the correlation of turbidity, E. coli and total suspended solids (TSS) for all the rain events showed a relatively high Pearson's coefficient of 0.9 to one another; and (4) over 70% of settling TSS occurred within first 36 hours. Finally, it has been found that the physical sedimentation process can significantly reduce the microbial measures. |
id |
UNSP_652fb1662ea1b7ed386c3b5cdc822c1a |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/209303 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, NigeriaEscherichia coli (Ecoli)rainwatersedimentationtotal suspended solids (TSS)turbidityThis study investigated the impact of sedimentation on rainwater storage system using a case study at the Ikorodu area of Lagos state, a rural area in Nigeria. In this investigation, the proportions of Escherichia coli (E. coli) that were settleable (due to sedimentation) and those that were at the free phase have been studied. Water samples were collected from different depths in the inspected rainwater storage tank at two different periods (i.e. rainy and dry periods) for 20 days. The samples collected from these periods have been analysed for physical and microbial measures before passing it through the serial filters with pore sizes of 500 mu m, 100 mu m, 10 mu m and 1.5 mu m to measure the retained particle mass. From the results, it was observed that: (1) the water quality at the free-phase zone was better than that at the tank's bottom; (2) the settleable bacteria rapidly sinked to bottom; (3) the correlation of turbidity, E. coli and total suspended solids (TSS) for all the rain events showed a relatively high Pearson's coefficient of 0.9 to one another; and (4) over 70% of settling TSS occurred within first 36 hours. Finally, it has been found that the physical sedimentation process can significantly reduce the microbial measures.Univ Bradford, Fac Engn & Informat, Bradford DB7 1DP, W Yorkshire, EnglandNatl Inst Technol NIT, Warangal 506004, Telangana, IndiaUNESP Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Sao Paulo, BrazilUNESP Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Sao Paulo, BrazilIwa PublishingUniv BradfordNatl Inst Technol NITUniversidade Estadual Paulista (Unesp)John, Chukwuemeka KingsleyPu, Jaan H.Pandey, ManishMoruzzi, Rodrigo [UNESP]2021-06-25T11:55:38Z2021-06-25T11:55:38Z2021-03-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14http://dx.doi.org/10.2166/ws.2021.093Water Supply. London: Iwa Publishing, 14 p., 2021.1606-9749http://hdl.handle.net/11449/20930310.2166/ws.2021.093WOS:000636324500001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengWater Supplyinfo:eu-repo/semantics/openAccess2021-10-23T19:28:03Zoai:repositorio.unesp.br:11449/209303Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:28:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
title |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
spellingShingle |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria John, Chukwuemeka Kingsley Escherichia coli (E coli) rainwater sedimentation total suspended solids (TSS) turbidity |
title_short |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
title_full |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
title_fullStr |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
title_full_unstemmed |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
title_sort |
Impacts of sedimentation on rainwater quality: case study at Ikorodu of Lagos, Nigeria |
author |
John, Chukwuemeka Kingsley |
author_facet |
John, Chukwuemeka Kingsley Pu, Jaan H. Pandey, Manish Moruzzi, Rodrigo [UNESP] |
author_role |
author |
author2 |
Pu, Jaan H. Pandey, Manish Moruzzi, Rodrigo [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Univ Bradford Natl Inst Technol NIT Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
John, Chukwuemeka Kingsley Pu, Jaan H. Pandey, Manish Moruzzi, Rodrigo [UNESP] |
dc.subject.por.fl_str_mv |
Escherichia coli (E coli) rainwater sedimentation total suspended solids (TSS) turbidity |
topic |
Escherichia coli (E coli) rainwater sedimentation total suspended solids (TSS) turbidity |
description |
This study investigated the impact of sedimentation on rainwater storage system using a case study at the Ikorodu area of Lagos state, a rural area in Nigeria. In this investigation, the proportions of Escherichia coli (E. coli) that were settleable (due to sedimentation) and those that were at the free phase have been studied. Water samples were collected from different depths in the inspected rainwater storage tank at two different periods (i.e. rainy and dry periods) for 20 days. The samples collected from these periods have been analysed for physical and microbial measures before passing it through the serial filters with pore sizes of 500 mu m, 100 mu m, 10 mu m and 1.5 mu m to measure the retained particle mass. From the results, it was observed that: (1) the water quality at the free-phase zone was better than that at the tank's bottom; (2) the settleable bacteria rapidly sinked to bottom; (3) the correlation of turbidity, E. coli and total suspended solids (TSS) for all the rain events showed a relatively high Pearson's coefficient of 0.9 to one another; and (4) over 70% of settling TSS occurred within first 36 hours. Finally, it has been found that the physical sedimentation process can significantly reduce the microbial measures. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:55:38Z 2021-06-25T11:55:38Z 2021-03-30 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.2166/ws.2021.093 Water Supply. London: Iwa Publishing, 14 p., 2021. 1606-9749 http://hdl.handle.net/11449/209303 10.2166/ws.2021.093 WOS:000636324500001 |
url |
http://dx.doi.org/10.2166/ws.2021.093 http://hdl.handle.net/11449/209303 |
identifier_str_mv |
Water Supply. London: Iwa Publishing, 14 p., 2021. 1606-9749 10.2166/ws.2021.093 WOS:000636324500001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Water Supply |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
14 |
dc.publisher.none.fl_str_mv |
Iwa Publishing |
publisher.none.fl_str_mv |
Iwa Publishing |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964499287998464 |