Reduction crystallization of manganese and aluminum from waste water using hydrazine

Thapelo Promise Malematja; Freeman Ntuli; Mohamed Belaid

Reduction crystallization of manganese and aluminum from waste water using hydrazine

Thapelo Promise Malematja
, Freeman Ntuli
, Mohamed Belaid

University of Johannesburg

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Citations (Scopus)

Abstract

Removal and recovery of heavy metals from wastewater has been a priority in recent years due to environmental and economic reasons. The scarcity of fresh water resources, pollution of water sources and the dwindling mineral reserves are some of the issues that has led to an increased interest in heavy metal removal and recovery. The use of hydrazine as a reducing agent to remove and recover aluminum and manganese metal was investigated. A 5 L batch reactor was used to conduct experiments where 100 mg/l of Al and Mn metal solutions were reduced using 1M hydrazine as a reducing agent. It was found that the metals were reduced to their elemental form. Hydrazine proved to be an effective reducing agent for Mn with average removal efficiencies of 99.8 and 99.5% in the single metal (Mn-only) and mixed metal systems (Mn and Al) respectively. However, the removal efficiency for Al was low with average removal efficiencies of 17 and 19% in the single and mixed metal system.

Original language	English
Title of host publication	Proceedings of the World Congress on Engineering 2012, WCE 2012
Editors	A. M. Korsunsky, Len Gelman, Andrew Hunter, S. I. Ao, David WL Hukins
Publisher	Newswood Limited
Pages	1617-1620
Number of pages	4
ISBN (Print)	9789881925220
Publication status	Published - 2012
Event	2012 World Congress on Engineering, WCE 2012 - London, United Kingdom Duration: 4 Jul 2012 → 6 Jul 2012

Publication series

Name	Lecture Notes in Engineering and Computer Science
Volume	3
ISSN (Print)	2078-0958

Conference

Conference	2012 World Congress on Engineering, WCE 2012
Country/Territory	United Kingdom
City	London
Period	4/07/12 → 6/07/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Electroless plating
Heavy metal removal reduction crystallization
Wastewater treatment

ASJC Scopus subject areas

Computer Science (miscellaneous)

Cite this

Malematja, T. P., Ntuli, F., & Belaid, M. (2012). Reduction crystallization of manganese and aluminum from waste water using hydrazine. In A. M. Korsunsky, L. Gelman, A. Hunter, S. I. Ao, & D. WL. Hukins (Eds.), Proceedings of the World Congress on Engineering 2012, WCE 2012 (pp. 1617-1620). (Lecture Notes in Engineering and Computer Science; Vol. 3). Newswood Limited.

Malematja, Thapelo Promise ; Ntuli, Freeman ; Belaid, Mohamed. / Reduction crystallization of manganese and aluminum from waste water using hydrazine. Proceedings of the World Congress on Engineering 2012, WCE 2012. editor / A. M. Korsunsky ; Len Gelman ; Andrew Hunter ; S. I. Ao ; David WL Hukins. Newswood Limited, 2012. pp. 1617-1620 (Lecture Notes in Engineering and Computer Science).

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title = "Reduction crystallization of manganese and aluminum from waste water using hydrazine",

abstract = "Removal and recovery of heavy metals from wastewater has been a priority in recent years due to environmental and economic reasons. The scarcity of fresh water resources, pollution of water sources and the dwindling mineral reserves are some of the issues that has led to an increased interest in heavy metal removal and recovery. The use of hydrazine as a reducing agent to remove and recover aluminum and manganese metal was investigated. A 5 L batch reactor was used to conduct experiments where 100 mg/l of Al and Mn metal solutions were reduced using 1M hydrazine as a reducing agent. It was found that the metals were reduced to their elemental form. Hydrazine proved to be an effective reducing agent for Mn with average removal efficiencies of 99.8 and 99.5\% in the single metal (Mn-only) and mixed metal systems (Mn and Al) respectively. However, the removal efficiency for Al was low with average removal efficiencies of 17 and 19\% in the single and mixed metal system.",

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author = "Malematja, \{Thapelo Promise\} and Freeman Ntuli and Mohamed Belaid",

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language = "English",

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series = "Lecture Notes in Engineering and Computer Science",

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pages = "1617--1620",

editor = "Korsunsky, \{A. M.\} and Len Gelman and Andrew Hunter and Ao, \{S. I.\} and Hukins, \{David WL\}",

booktitle = "Proceedings of the World Congress on Engineering 2012, WCE 2012",

}

Malematja, TP, Ntuli, F & Belaid, M 2012, Reduction crystallization of manganese and aluminum from waste water using hydrazine. in AM Korsunsky, L Gelman, A Hunter, SI Ao & DWL Hukins (eds), Proceedings of the World Congress on Engineering 2012, WCE 2012. Lecture Notes in Engineering and Computer Science, vol. 3, Newswood Limited, pp. 1617-1620, 2012 World Congress on Engineering, WCE 2012, London, United Kingdom, 4/07/12.

Reduction crystallization of manganese and aluminum from waste water using hydrazine. / Malematja, Thapelo Promise; Ntuli, Freeman; Belaid, Mohamed.
Proceedings of the World Congress on Engineering 2012, WCE 2012. ed. / A. M. Korsunsky; Len Gelman; Andrew Hunter; S. I. Ao; David WL Hukins. Newswood Limited, 2012. p. 1617-1620 (Lecture Notes in Engineering and Computer Science; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Reduction crystallization of manganese and aluminum from waste water using hydrazine

AU - Malematja, Thapelo Promise

AU - Ntuli, Freeman

AU - Belaid, Mohamed

PY - 2012

Y1 - 2012

N2 - Removal and recovery of heavy metals from wastewater has been a priority in recent years due to environmental and economic reasons. The scarcity of fresh water resources, pollution of water sources and the dwindling mineral reserves are some of the issues that has led to an increased interest in heavy metal removal and recovery. The use of hydrazine as a reducing agent to remove and recover aluminum and manganese metal was investigated. A 5 L batch reactor was used to conduct experiments where 100 mg/l of Al and Mn metal solutions were reduced using 1M hydrazine as a reducing agent. It was found that the metals were reduced to their elemental form. Hydrazine proved to be an effective reducing agent for Mn with average removal efficiencies of 99.8 and 99.5% in the single metal (Mn-only) and mixed metal systems (Mn and Al) respectively. However, the removal efficiency for Al was low with average removal efficiencies of 17 and 19% in the single and mixed metal system.

AB - Removal and recovery of heavy metals from wastewater has been a priority in recent years due to environmental and economic reasons. The scarcity of fresh water resources, pollution of water sources and the dwindling mineral reserves are some of the issues that has led to an increased interest in heavy metal removal and recovery. The use of hydrazine as a reducing agent to remove and recover aluminum and manganese metal was investigated. A 5 L batch reactor was used to conduct experiments where 100 mg/l of Al and Mn metal solutions were reduced using 1M hydrazine as a reducing agent. It was found that the metals were reduced to their elemental form. Hydrazine proved to be an effective reducing agent for Mn with average removal efficiencies of 99.8 and 99.5% in the single metal (Mn-only) and mixed metal systems (Mn and Al) respectively. However, the removal efficiency for Al was low with average removal efficiencies of 17 and 19% in the single and mixed metal system.

KW - Electroless plating

KW - Heavy metal removal reduction crystallization

KW - Wastewater treatment

UR - https://www.scopus.com/pages/publications/84891831608

M3 - Conference contribution

AN - SCOPUS:84891831608

SN - 9789881925220

T3 - Lecture Notes in Engineering and Computer Science

SP - 1617

EP - 1620

BT - Proceedings of the World Congress on Engineering 2012, WCE 2012

A2 - Korsunsky, A. M.

A2 - Gelman, Len

A2 - Hunter, Andrew

A2 - Ao, S. I.

A2 - Hukins, David WL

PB - Newswood Limited

T2 - 2012 World Congress on Engineering, WCE 2012

Y2 - 4 July 2012 through 6 July 2012

ER -

Reduction crystallization of manganese and aluminum from waste water using hydrazine

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

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Cite this