Investigation of self-purification capacity and water quality of Haraz river during dry and wet season

Rivers are one of the primary water resources for agricultural, drinking, industrial and environmental applications; thus, assessment of the river water quality has a great significance. This study aims to evaluate the self-purification capacity of the Haraz river and identify critical areas with th...

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Autores principales:	Hasan Aminirad, Ozeair Abessi, Farshad Golbabaei Kootenaei, Mohammad Amin Mirrezaei, Tahereh Taghizadeh, Pooneh Saeidi, Gholamreza Darvishi
Formato:	article
Lenguaje:	EN
Publicado:	Razi University 2021
Materias:	dissolved oxygen concentration haraz river irwqi nsfwqi qual2k model water quality Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/228a03b627f24a61a8d04bf35f980210
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spelling	oai:doaj.org-article:228a03b627f24a61a8d04bf35f9802102021-11-20T12:24:01ZInvestigation of self-purification capacity and water quality of Haraz river during dry and wet season2476-628310.22126/arww.2021.6175.1201https://doaj.org/article/228a03b627f24a61a8d04bf35f9802102021-06-01T00:00:00Zhttps://arww.razi.ac.ir/article_1789_6de5a5532fb567aeb222643f9c67c5ab.pdfhttps://doaj.org/toc/2476-6283Rivers are one of the primary water resources for agricultural, drinking, industrial and environmental applications; thus, assessment of the river water quality has a great significance. This study aims to evaluate the self-purification capacity of the Haraz river and identify critical areas with the lack of dissolved oxygen along the river. Also, the QUAL2K model, IRWQI and NSFWQI indexes were applied for the determination of water quality. In this study, primary pollutant sources including urban areas, industrial centers, farmlands and multiple cold-water fish farms that their water usage and discharge have severe consequences on the quality and quantity of the river's stream were identified and located. This model was built and calibrated for four seasons with data from six sampling stations of Haraz river. Based on this study, upstream of Haraz river has adequate self-purification capacity in comparison to its midstream and downstream, especially in the Amol city area, lack of dissolved oxygen was observed and self-purification capacity considerably reduced. The critical areas of Haraz river in spring and winter seasons are downstream and the estuary region, while in summer and autumn, critical areas are increased in Amol city. In general, as the elevation decreases, the water quality decreases. Only in upstream areas (near the Poloor village and before the Chelav station), water quality is in the average condition, but near the Caspian sea, the condition of Haraz river is worrying due to the existence of contamination sources.Hasan AminiradOzeair AbessiFarshad Golbabaei KootenaeiMohammad Amin MirrezaeiTahereh TaghizadehPooneh SaeidiGholamreza DarvishiRazi Universityarticledissolved oxygen concentrationharaz riverirwqinsfwqiqual2k modelwater qualityEnvironmental technology. Sanitary engineeringTD1-1066ENJournal of Applied Research in Water and Wastewater , Vol 8, Iss 1, Pp 21-27 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dissolved oxygen concentration haraz river irwqi nsfwqi qual2k model water quality Environmental technology. Sanitary engineering TD1-1066
spellingShingle	dissolved oxygen concentration haraz river irwqi nsfwqi qual2k model water quality Environmental technology. Sanitary engineering TD1-1066 Hasan Aminirad Ozeair Abessi Farshad Golbabaei Kootenaei Mohammad Amin Mirrezaei Tahereh Taghizadeh Pooneh Saeidi Gholamreza Darvishi Investigation of self-purification capacity and water quality of Haraz river during dry and wet season
description	Rivers are one of the primary water resources for agricultural, drinking, industrial and environmental applications; thus, assessment of the river water quality has a great significance. This study aims to evaluate the self-purification capacity of the Haraz river and identify critical areas with the lack of dissolved oxygen along the river. Also, the QUAL2K model, IRWQI and NSFWQI indexes were applied for the determination of water quality. In this study, primary pollutant sources including urban areas, industrial centers, farmlands and multiple cold-water fish farms that their water usage and discharge have severe consequences on the quality and quantity of the river's stream were identified and located. This model was built and calibrated for four seasons with data from six sampling stations of Haraz river. Based on this study, upstream of Haraz river has adequate self-purification capacity in comparison to its midstream and downstream, especially in the Amol city area, lack of dissolved oxygen was observed and self-purification capacity considerably reduced. The critical areas of Haraz river in spring and winter seasons are downstream and the estuary region, while in summer and autumn, critical areas are increased in Amol city. In general, as the elevation decreases, the water quality decreases. Only in upstream areas (near the Poloor village and before the Chelav station), water quality is in the average condition, but near the Caspian sea, the condition of Haraz river is worrying due to the existence of contamination sources.
format	article
author	Hasan Aminirad Ozeair Abessi Farshad Golbabaei Kootenaei Mohammad Amin Mirrezaei Tahereh Taghizadeh Pooneh Saeidi Gholamreza Darvishi
author_facet	Hasan Aminirad Ozeair Abessi Farshad Golbabaei Kootenaei Mohammad Amin Mirrezaei Tahereh Taghizadeh Pooneh Saeidi Gholamreza Darvishi
author_sort	Hasan Aminirad
title	Investigation of self-purification capacity and water quality of Haraz river during dry and wet season
title_short	Investigation of self-purification capacity and water quality of Haraz river during dry and wet season
title_full	Investigation of self-purification capacity and water quality of Haraz river during dry and wet season
title_fullStr	Investigation of self-purification capacity and water quality of Haraz river during dry and wet season
title_full_unstemmed	Investigation of self-purification capacity and water quality of Haraz river during dry and wet season
title_sort	investigation of self-purification capacity and water quality of haraz river during dry and wet season
publisher	Razi University
publishDate	2021
url	https://doaj.org/article/228a03b627f24a61a8d04bf35f980210
work_keys_str_mv	AT hasanaminirad investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason AT ozeairabessi investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason AT farshadgolbabaeikootenaei investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason AT mohammadaminmirrezaei investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason AT taherehtaghizadeh investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason AT poonehsaeidi investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason AT gholamrezadarvishi investigationofselfpurificationcapacityandwaterqualityofharazriverduringdryandwetseason
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Investigation of self-purification capacity and water quality of Haraz river during dry and wet season

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