The Removal of Cu (II) from Aqueous Solution using Sodium Borohydride as a Reducing Agent

N.T. Sithole, F. Ntuli, T. Mashifana

Research output: Contribution to conferencePaper

Abstract

The removal and recovery of metals from wastewater has been a subject of significant importance due the negative impact these toxic metals have on human health and the environment as a result of water and soil pollution. Increased use of the metals and chemicals in the process industries has resulted in generation of large quantity of effluents that contains high level of toxic metals and other pollutants. The objective of this work was to recover of Cu in its elemental form as metallic powder from aqueous solution using NaBH4 as a reducing agent. Reductive precipitation was achieved in a batch reactor at 65°C using Cu powder as a seeding material. This study also investigated the effect of concentration of sodium borohydride (NaBH4) as a reducing agent. The amount of NaBH4 was varied based on mole ratios which are 1:1, 1:0.25 and 1:0.1 to recover Cu from synthetic wastewater. The results obtained showed that sodium borohydride is an effective reducing agent to recover Cu from wastewater. The optimum concentration of NaBH4 that gives the best results the 1:1 molar ratio with over 99% Cu removal. © Published under licence by IOP Publishing Ltd.
Original languageEnglish
DOIs
Publication statusPublished - 2018

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aqueous solution
sodium
wastewater
soil pollution
metal
seeding
water pollution
effluent
pollutant
industry
removal
toxic metal
reactor
effect
material
chemical
human health

Cite this

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title = "The Removal of Cu (II) from Aqueous Solution using Sodium Borohydride as a Reducing Agent",
abstract = "The removal and recovery of metals from wastewater has been a subject of significant importance due the negative impact these toxic metals have on human health and the environment as a result of water and soil pollution. Increased use of the metals and chemicals in the process industries has resulted in generation of large quantity of effluents that contains high level of toxic metals and other pollutants. The objective of this work was to recover of Cu in its elemental form as metallic powder from aqueous solution using NaBH4 as a reducing agent. Reductive precipitation was achieved in a batch reactor at 65°C using Cu powder as a seeding material. This study also investigated the effect of concentration of sodium borohydride (NaBH4) as a reducing agent. The amount of NaBH4 was varied based on mole ratios which are 1:1, 1:0.25 and 1:0.1 to recover Cu from synthetic wastewater. The results obtained showed that sodium borohydride is an effective reducing agent to recover Cu from wastewater. The optimum concentration of NaBH4 that gives the best results the 1:1 molar ratio with over 99{\%} Cu removal. {\circledC} Published under licence by IOP Publishing Ltd.",
author = "N.T. Sithole and F. Ntuli and T. Mashifana",
note = "Export Date: 19 June 2018",
year = "2018",
doi = "10.1088/1755-1315/120/1/012022",
language = "English",

}

The Removal of Cu (II) from Aqueous Solution using Sodium Borohydride as a Reducing Agent. / Sithole, N.T.; Ntuli, F.; Mashifana, T.

2018.

Research output: Contribution to conferencePaper

TY - CONF

T1 - The Removal of Cu (II) from Aqueous Solution using Sodium Borohydride as a Reducing Agent

AU - Sithole, N.T.

AU - Ntuli, F.

AU - Mashifana, T.

N1 - Export Date: 19 June 2018

PY - 2018

Y1 - 2018

N2 - The removal and recovery of metals from wastewater has been a subject of significant importance due the negative impact these toxic metals have on human health and the environment as a result of water and soil pollution. Increased use of the metals and chemicals in the process industries has resulted in generation of large quantity of effluents that contains high level of toxic metals and other pollutants. The objective of this work was to recover of Cu in its elemental form as metallic powder from aqueous solution using NaBH4 as a reducing agent. Reductive precipitation was achieved in a batch reactor at 65°C using Cu powder as a seeding material. This study also investigated the effect of concentration of sodium borohydride (NaBH4) as a reducing agent. The amount of NaBH4 was varied based on mole ratios which are 1:1, 1:0.25 and 1:0.1 to recover Cu from synthetic wastewater. The results obtained showed that sodium borohydride is an effective reducing agent to recover Cu from wastewater. The optimum concentration of NaBH4 that gives the best results the 1:1 molar ratio with over 99% Cu removal. © Published under licence by IOP Publishing Ltd.

AB - The removal and recovery of metals from wastewater has been a subject of significant importance due the negative impact these toxic metals have on human health and the environment as a result of water and soil pollution. Increased use of the metals and chemicals in the process industries has resulted in generation of large quantity of effluents that contains high level of toxic metals and other pollutants. The objective of this work was to recover of Cu in its elemental form as metallic powder from aqueous solution using NaBH4 as a reducing agent. Reductive precipitation was achieved in a batch reactor at 65°C using Cu powder as a seeding material. This study also investigated the effect of concentration of sodium borohydride (NaBH4) as a reducing agent. The amount of NaBH4 was varied based on mole ratios which are 1:1, 1:0.25 and 1:0.1 to recover Cu from synthetic wastewater. The results obtained showed that sodium borohydride is an effective reducing agent to recover Cu from wastewater. The optimum concentration of NaBH4 that gives the best results the 1:1 molar ratio with over 99% Cu removal. © Published under licence by IOP Publishing Ltd.

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DO - 10.1088/1755-1315/120/1/012022

M3 - Paper

ER -