Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay

In this work, bentonite clay was characterized and investigated for the adsorption of chromium and nickel metal ions from aqueous solution. The clay, calcined at 650 °C, was characterized for physical, chemical and textural properties. Nickel sulphate hexahydrate (NiSO4.6H2O) and chromium tri oxide...

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Autores principales:	Alexander Asanja Jock, Innocent Oseribo Oboh, Uwem Ekwere Inyang, Lawrence Philippian Ganchok, Ojo Adeku
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adsorption bentonite clay chromium isotherms kinetics nickel Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/76e0568318a64c698c3a709966e6b99b
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spelling	oai:doaj.org-article:76e0568318a64c698c3a709966e6b99b2021-11-05T21:14:21ZChromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay1751-231X10.2166/wpt.2021.031https://doaj.org/article/76e0568318a64c698c3a709966e6b99b2021-07-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/3/825https://doaj.org/toc/1751-231XIn this work, bentonite clay was characterized and investigated for the adsorption of chromium and nickel metal ions from aqueous solution. The clay, calcined at 650 °C, was characterized for physical, chemical and textural properties. Nickel sulphate hexahydrate (NiSO4.6H2O) and chromium tri oxide (Cr2O3) solutions were used as metal model compounds to evaluate the adsorption efficiency of the clay in a batch mode. The initial metal ions concentration ranged from 10 to 50 mg/L and the maximum removal efficiency was 99.40% for Cr (III) and 71.50% for Ni (II) metal ions. Langmuir and Freundlich models were utilized for the analysis of the adsorption equilibrium isotherm. The experimental data fitted well into the Freundlich model for Cr (III) with a regression coefficient (R2) of 0.996 and the Langmuir model for Ni (II) having an R2 value 0.994. The pseudo-second order kinetic model fitted well for both chromium and nickel and their adsorption from single metal solutions followed the order Cr > Ni. Highlight The local clay has not been reported in any scholarly journal or publication. The removal of nickel and chromium using this clay has been found to be effective. The data obtained will form a baseline for references and learning purposes.;Alexander Asanja JockInnocent Oseribo ObohUwem Ekwere InyangLawrence Philippian GanchokOjo AdekuIWA Publishingarticleadsorptionbentonite claychromiumisothermskineticsnickelEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 3, Pp 825-836 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption bentonite clay chromium isotherms kinetics nickel Environmental technology. Sanitary engineering TD1-1066
spellingShingle	adsorption bentonite clay chromium isotherms kinetics nickel Environmental technology. Sanitary engineering TD1-1066 Alexander Asanja Jock Innocent Oseribo Oboh Uwem Ekwere Inyang Lawrence Philippian Ganchok Ojo Adeku Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay
description	In this work, bentonite clay was characterized and investigated for the adsorption of chromium and nickel metal ions from aqueous solution. The clay, calcined at 650 °C, was characterized for physical, chemical and textural properties. Nickel sulphate hexahydrate (NiSO4.6H2O) and chromium tri oxide (Cr2O3) solutions were used as metal model compounds to evaluate the adsorption efficiency of the clay in a batch mode. The initial metal ions concentration ranged from 10 to 50 mg/L and the maximum removal efficiency was 99.40% for Cr (III) and 71.50% for Ni (II) metal ions. Langmuir and Freundlich models were utilized for the analysis of the adsorption equilibrium isotherm. The experimental data fitted well into the Freundlich model for Cr (III) with a regression coefficient (R2) of 0.996 and the Langmuir model for Ni (II) having an R2 value 0.994. The pseudo-second order kinetic model fitted well for both chromium and nickel and their adsorption from single metal solutions followed the order Cr > Ni. Highlight The local clay has not been reported in any scholarly journal or publication. The removal of nickel and chromium using this clay has been found to be effective. The data obtained will form a baseline for references and learning purposes.;
format	article
author	Alexander Asanja Jock Innocent Oseribo Oboh Uwem Ekwere Inyang Lawrence Philippian Ganchok Ojo Adeku
author_facet	Alexander Asanja Jock Innocent Oseribo Oboh Uwem Ekwere Inyang Lawrence Philippian Ganchok Ojo Adeku
author_sort	Alexander Asanja Jock
title	Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay
title_short	Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay
title_full	Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay
title_fullStr	Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay
title_full_unstemmed	Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay
title_sort	chromium and nickel metal ions removal from contaminated water using nigerian bentonite clay
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/76e0568318a64c698c3a709966e6b99b
work_keys_str_mv	AT alexanderasanjajock chromiumandnickelmetalionsremovalfromcontaminatedwaterusingnigerianbentoniteclay AT innocentoseribooboh chromiumandnickelmetalionsremovalfromcontaminatedwaterusingnigerianbentoniteclay AT uwemekwereinyang chromiumandnickelmetalionsremovalfromcontaminatedwaterusingnigerianbentoniteclay AT lawrencephilippianganchok chromiumandnickelmetalionsremovalfromcontaminatedwaterusingnigerianbentoniteclay AT ojoadeku chromiumandnickelmetalionsremovalfromcontaminatedwaterusingnigerianbentoniteclay
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Chromium and nickel metal ions removal from contaminated water using Nigerian bentonite clay

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