Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater

The objective of this research was to ascertain the best conditions for efficient applications of water lettuce, giant salvinia and water hyacinth in improving the quality of low strength domestic wastewater. Water quality assessment of the wastewater samples before (influent) and after treatment (e...

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Autores principales:	Hauwa Mohammed Mustafa, Gasim Hayder
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	domestic wastewater organic contaminants phytoremediation retention time River, lake, and water-supply engineering (General) TC401-506 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/07d1af0ecd22459faf7a67aaaa0f39d4
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spelling	oai:doaj.org-article:07d1af0ecd22459faf7a67aaaa0f39d42021-11-08T07:59:49ZEvaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater2616-651810.2166/h2oj.2021.096https://doaj.org/article/07d1af0ecd22459faf7a67aaaa0f39d42021-01-01T00:00:00Zhttp://doi.org/10.2166/h2oj.2021.096https://doaj.org/toc/2616-6518The objective of this research was to ascertain the best conditions for efficient applications of water lettuce, giant salvinia and water hyacinth in improving the quality of low strength domestic wastewater. Water quality assessment of the wastewater samples before (influent) and after treatment (effluent) with effect to retention times (6, 12 and 24 h) was analysed. The outcome of the study at 6 h retention showed that water lettuce (6.8–7.0 pH, 50.5% colour, 46.7% biochemical oxygen demand (BOD) and 37.8% chemical oxygen demand (COD)), giant salvinia (6.9–7.1 pH, 40.5% colour, 60% BOD and 43.2% COD) and water hyacinth (6.7–6.9 pH, 45.5% colour, 53% BOD and 35.1% COD) reduction values were achieved. At 12 h retention, water lettuce (6.6–7.0 pH, 57.2% colour, 77.1% BOD and 74.6% COD), giant salvinia (6.4–6.8 pH, 81.1% colour, 66.7% BOD and 72.2% COD) and water hyacinth (6.4–6.7 pH, 61.9% colour, 70% BOD and 61.1% COD) reduction values were achieved. Similarly, for 24 h retention, water lettuce (6.6–7.0 pH, 76.7% colour, 53.2% BOD and 70.3% COD), giant salvinia (6.6–7.0 pH, 91.4% colour, 74.7% BOD and 81.0% COD) and water hyacinth (6.4–6.9 pH, 74% colour, 58% BOD and 67.2% COD) reduction values were achieved. These findings indicated that the retention times of 12 and 24 h provided suitable conditions to break down the organic contaminants present in the shallow ponds. HIGHLIGHTS Determine the ideal conditions for efficient applications of macrophytes in phytoremediation of treated domestic wastewater.; The reduction rate of pollutants progressively increased, as the retention time and sampling period increased.; The developed hydroponic ponds provided simple, cheap, and sustainable technology for tertiary treatment of wastewater within a short time.;Hauwa Mohammed MustafaGasim HayderIWA Publishingarticledomestic wastewaterorganic contaminantsphytoremediationretention timeRiver, lake, and water-supply engineering (General)TC401-506Water supply for domestic and industrial purposesTD201-500ENH2Open Journal, Vol 4, Iss 1, Pp 167-181 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	domestic wastewater organic contaminants phytoremediation retention time River, lake, and water-supply engineering (General) TC401-506 Water supply for domestic and industrial purposes TD201-500
spellingShingle	domestic wastewater organic contaminants phytoremediation retention time River, lake, and water-supply engineering (General) TC401-506 Water supply for domestic and industrial purposes TD201-500 Hauwa Mohammed Mustafa Gasim Hayder Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
description	The objective of this research was to ascertain the best conditions for efficient applications of water lettuce, giant salvinia and water hyacinth in improving the quality of low strength domestic wastewater. Water quality assessment of the wastewater samples before (influent) and after treatment (effluent) with effect to retention times (6, 12 and 24 h) was analysed. The outcome of the study at 6 h retention showed that water lettuce (6.8–7.0 pH, 50.5% colour, 46.7% biochemical oxygen demand (BOD) and 37.8% chemical oxygen demand (COD)), giant salvinia (6.9–7.1 pH, 40.5% colour, 60% BOD and 43.2% COD) and water hyacinth (6.7–6.9 pH, 45.5% colour, 53% BOD and 35.1% COD) reduction values were achieved. At 12 h retention, water lettuce (6.6–7.0 pH, 57.2% colour, 77.1% BOD and 74.6% COD), giant salvinia (6.4–6.8 pH, 81.1% colour, 66.7% BOD and 72.2% COD) and water hyacinth (6.4–6.7 pH, 61.9% colour, 70% BOD and 61.1% COD) reduction values were achieved. Similarly, for 24 h retention, water lettuce (6.6–7.0 pH, 76.7% colour, 53.2% BOD and 70.3% COD), giant salvinia (6.6–7.0 pH, 91.4% colour, 74.7% BOD and 81.0% COD) and water hyacinth (6.4–6.9 pH, 74% colour, 58% BOD and 67.2% COD) reduction values were achieved. These findings indicated that the retention times of 12 and 24 h provided suitable conditions to break down the organic contaminants present in the shallow ponds. HIGHLIGHTS Determine the ideal conditions for efficient applications of macrophytes in phytoremediation of treated domestic wastewater.; The reduction rate of pollutants progressively increased, as the retention time and sampling period increased.; The developed hydroponic ponds provided simple, cheap, and sustainable technology for tertiary treatment of wastewater within a short time.;
format	article
author	Hauwa Mohammed Mustafa Gasim Hayder
author_facet	Hauwa Mohammed Mustafa Gasim Hayder
author_sort	Hauwa Mohammed Mustafa
title	Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
title_short	Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
title_full	Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
title_fullStr	Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
title_full_unstemmed	Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
title_sort	evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/07d1af0ecd22459faf7a67aaaa0f39d4
work_keys_str_mv	AT hauwamohammedmustafa evaluationofwaterlettucegiantsalviniaandwaterhyacinthsystemsinphytoremediationofdomesticwastewater AT gasimhayder evaluationofwaterlettucegiantsalviniaandwaterhyacinthsystemsinphytoremediationofdomesticwastewater
_version_	1718442776697241600

Evaluation of water lettuce, giant salvinia and water hyacinth systems in phytoremediation of domestic wastewater

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