Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification

Heavy metals are generally found in industrial wastewaters, affecting human health and living organisms. This study was therefore aimed to use bioadsorbents rice husk and activated carbon-silica to efficiently remove the heavy metals including lead (Pb) and cadmium (Cd) from an aqueous wastewater. T...

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Autores principales:	Mousa Mohammadpour, Hossein Babazadeh, Ali Afrous, Ebrahim Pazira
Formato:	article
Lenguaje:	EN
Publicado:	University of Guilan 2021
Materias:	bio-adsorbent cadmium freundlich langmuir lead Environmental sciences GE1-350 Science Q
Acceso en línea:	https://doaj.org/article/8705f62f4a134661bc1adc428b15243c
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spelling	oai:doaj.org-article:8705f62f4a134661bc1adc428b15243c2021-12-02T20:25:58ZRice husk and activated carbon-silica as potential bioadsorbents for wastewater purification1735-30331735-386610.22124/cjes.2021.5139https://doaj.org/article/8705f62f4a134661bc1adc428b15243c2021-10-01T00:00:00Zhttps://cjes.guilan.ac.ir/article_5139_79f05d305566c2fd05847ac15990b828.pdfhttps://doaj.org/toc/1735-3033https://doaj.org/toc/1735-3866Heavy metals are generally found in industrial wastewaters, affecting human health and living organisms. This study was therefore aimed to use bioadsorbents rice husk and activated carbon-silica to efficiently remove the heavy metals including lead (Pb) and cadmium (Cd) from an aqueous wastewater. The effects of bioadsorbent content, initial concentration, contact time, and pH value on the metal removal were investigated. An increased metal initial concentration lowered the removal efficiency of the bioadsorbents, and pH 6 provided the best condition for the removal of Pb and Cd. The use of rice husk and activated carbon-silica at pH 6 resulted in a maximum metal removal of 81% and 98% for Pb, while 88% and 100% for Cd respectively. The adsorption parameters were then determined by the Langmuir and Freundlich adsorption isotherms, and the experimental data were better fitted in the Freundlich adsorption isotherm model in comparison with the Langmuir adsorption isotherm model.Mousa MohammadpourHossein BabazadehAli AfrousEbrahim PaziraUniversity of Guilanarticlebio-adsorbentcadmiumfreundlichlangmuirleadEnvironmental sciencesGE1-350ScienceQENCaspian Journal of Environmental Sciences , Vol 19, Iss 4, Pp 661-672 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bio-adsorbent cadmium freundlich langmuir lead Environmental sciences GE1-350 Science Q
spellingShingle	bio-adsorbent cadmium freundlich langmuir lead Environmental sciences GE1-350 Science Q Mousa Mohammadpour Hossein Babazadeh Ali Afrous Ebrahim Pazira Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
description	Heavy metals are generally found in industrial wastewaters, affecting human health and living organisms. This study was therefore aimed to use bioadsorbents rice husk and activated carbon-silica to efficiently remove the heavy metals including lead (Pb) and cadmium (Cd) from an aqueous wastewater. The effects of bioadsorbent content, initial concentration, contact time, and pH value on the metal removal were investigated. An increased metal initial concentration lowered the removal efficiency of the bioadsorbents, and pH 6 provided the best condition for the removal of Pb and Cd. The use of rice husk and activated carbon-silica at pH 6 resulted in a maximum metal removal of 81% and 98% for Pb, while 88% and 100% for Cd respectively. The adsorption parameters were then determined by the Langmuir and Freundlich adsorption isotherms, and the experimental data were better fitted in the Freundlich adsorption isotherm model in comparison with the Langmuir adsorption isotherm model.
format	article
author	Mousa Mohammadpour Hossein Babazadeh Ali Afrous Ebrahim Pazira
author_facet	Mousa Mohammadpour Hossein Babazadeh Ali Afrous Ebrahim Pazira
author_sort	Mousa Mohammadpour
title	Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
title_short	Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
title_full	Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
title_fullStr	Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
title_full_unstemmed	Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
title_sort	rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification
publisher	University of Guilan
publishDate	2021
url	https://doaj.org/article/8705f62f4a134661bc1adc428b15243c
work_keys_str_mv	AT mousamohammadpour ricehuskandactivatedcarbonsilicaaspotentialbioadsorbentsforwastewaterpurification AT hosseinbabazadeh ricehuskandactivatedcarbonsilicaaspotentialbioadsorbentsforwastewaterpurification AT aliafrous ricehuskandactivatedcarbonsilicaaspotentialbioadsorbentsforwastewaterpurification AT ebrahimpazira ricehuskandactivatedcarbonsilicaaspotentialbioadsorbentsforwastewaterpurification
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Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification

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