Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)

The city of Assa is located in a Saharian area characterized by an arid climate and water scarcity. Like any other Saharian city in a developing country, the city is facing the challenges of rapid urbanization and the need to improve wastewater treatment and management. The main objective of this wo...

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Autores principales:	Badre Achag, Hind Mouhanni, Abdelaziz Bendou
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	microbiological and physico-chemical analysis performance principal component analysis waste stabilization ponds wastewater Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/02875d7a344c496991101b45805cc3fe
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spelling	oai:doaj.org-article:02875d7a344c496991101b45805cc3fe2021-11-05T17:03:20ZHydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)2709-80282709-803610.2166/aqua.2021.125https://doaj.org/article/02875d7a344c496991101b45805cc3fe2021-05-01T00:00:00Zhttp://aqua.iwaponline.com/content/70/3/361https://doaj.org/toc/2709-8028https://doaj.org/toc/2709-8036The city of Assa is located in a Saharian area characterized by an arid climate and water scarcity. Like any other Saharian city in a developing country, the city is facing the challenges of rapid urbanization and the need to improve wastewater treatment and management. The main objective of this work is to assess the performance of waste stabilization ponds in an arid area. This evaluation concerns microbiological and physico-chemical monitoring over three and twelve months respectively. Microbiological results indicate bacterial elimination rates of over 90% in autumn–winter due to the effectiveness of facultative ponds with 20–25 days of retention time, water clarity, ponds depth, and high sunlight exposure and penetration. Physico-chemical parameters surpass the Moroccan standards for reuse except Ph and T0 by 20–30%, this wastewater is relatively loaded with various pollutants, especially high organic load and low oxygen content. Statistical analysis has been made by principal component analysis (PCA), and confirms that dissolved oxygen, total suspended solids, COD and BOD5 do not reach the threshold for discharge into the natural environment, and moreover their reuse. For the improvement of the quality of these waters, it is legitimate to provide an upgrade of this plant by a tertiary treatment with maturation ponds. HIGHLIGHTS Research has a considerable impact on the decision to modernize the treatment plant of the waste stabilization ponds in the Saharan region of Morocco.; The methods used over the 13 months in this study are new to the Moroccan water office.; Problems were defined and methods to resolve them were put in place.; This research will be considered as a basic study in the development of other wastewater treatment plants in Morocco.;Badre AchagHind MouhanniAbdelaziz BendouIWA Publishingarticlemicrobiological and physico-chemical analysisperformanceprincipal component analysiswaste stabilization pondswastewaterEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENAqua, Vol 70, Iss 3, Pp 361-374 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	microbiological and physico-chemical analysis performance principal component analysis waste stabilization ponds wastewater Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	microbiological and physico-chemical analysis performance principal component analysis waste stabilization ponds wastewater Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Badre Achag Hind Mouhanni Abdelaziz Bendou Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)
description	The city of Assa is located in a Saharian area characterized by an arid climate and water scarcity. Like any other Saharian city in a developing country, the city is facing the challenges of rapid urbanization and the need to improve wastewater treatment and management. The main objective of this work is to assess the performance of waste stabilization ponds in an arid area. This evaluation concerns microbiological and physico-chemical monitoring over three and twelve months respectively. Microbiological results indicate bacterial elimination rates of over 90% in autumn–winter due to the effectiveness of facultative ponds with 20–25 days of retention time, water clarity, ponds depth, and high sunlight exposure and penetration. Physico-chemical parameters surpass the Moroccan standards for reuse except Ph and T0 by 20–30%, this wastewater is relatively loaded with various pollutants, especially high organic load and low oxygen content. Statistical analysis has been made by principal component analysis (PCA), and confirms that dissolved oxygen, total suspended solids, COD and BOD5 do not reach the threshold for discharge into the natural environment, and moreover their reuse. For the improvement of the quality of these waters, it is legitimate to provide an upgrade of this plant by a tertiary treatment with maturation ponds. HIGHLIGHTS Research has a considerable impact on the decision to modernize the treatment plant of the waste stabilization ponds in the Saharan region of Morocco.; The methods used over the 13 months in this study are new to the Moroccan water office.; Problems were defined and methods to resolve them were put in place.; This research will be considered as a basic study in the development of other wastewater treatment plants in Morocco.;
format	article
author	Badre Achag Hind Mouhanni Abdelaziz Bendou
author_facet	Badre Achag Hind Mouhanni Abdelaziz Bendou
author_sort	Badre Achag
title	Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)
title_short	Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)
title_full	Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)
title_fullStr	Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)
title_full_unstemmed	Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)
title_sort	hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of assa, southern morocco)
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/02875d7a344c496991101b45805cc3fe
work_keys_str_mv	AT badreachag hydrobiologicalcharacterizationandefficiencyofnaturalwastestabilizationpondsinadesertclimatecityofassasouthernmorocco AT hindmouhanni hydrobiologicalcharacterizationandefficiencyofnaturalwastestabilizationpondsinadesertclimatecityofassasouthernmorocco AT abdelazizbendou hydrobiologicalcharacterizationandefficiencyofnaturalwastestabilizationpondsinadesertclimatecityofassasouthernmorocco
_version_	1718444080167387136

Hydro-biological characterization and efficiency of natural waste stabilization ponds in a desert climate (city of Assa, Southern Morocco)

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