MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE

Ikechukwu A. Nnanwube; Judith N. Udeaja; Okechukwu D. Onukwulı

MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE

Abstract

This work focused on the modeling and optimization of zinc recovery from sphalerite in a binary solution of acetic acid and hydrogen peroxide. The sphalerite sample was characterized using X-ray fluorescence (XRF), X-ray diffraction (XRD) and Scanning electron micrograph (SEM). The result revealed that the ore exists as zinc sulphide (ZnS). Levenberg-Marquardt (LM) back-propagation algorithm was employed for artificial neural network (ANN) modeling while central composite rotatable design (CCRD) was deployed for response surface methodology (RSM) modeling. RSM modeling gave optimum conditions of 90oC leaching temperature, 6M acid concentration, 540 rpm stirring rate, 120 minutes leaching time and 6M hydrogen peroxide concentration; at which about 89.91% zinc was recovered. Comparison of the two modeling techniques revealed that ANN (root mean square error, RMSE = 0.530, absolute average deviation, AAD = 0.681, coefficient of determination = 0.996) gave better predictions than RSM (root mean square error, RMSE = 0.755, absolute average deviation, AAD = 0.841, coefficient of determination = 0.991). Hence, ANN demonstrated higher predictive capability than RSM.

Keywords

References

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Details

Primary Language

English

Subjects

Engineering

Journal Section

Research Article

Authors

Ikechukwu A. Nnanwube This is me
0000-0002-0990-9566
Nigeria

Judith N. Udeaja This is me
0000-0002-3821-1263
Nigeria

Okechukwu D. Onukwulı This is me
0000-0002-0861-3536
Nigeria

Publication Date

June 1, 2021

Submission Date

November 24, 2019

Acceptance Date

January 22, 2020

Published in Issue

Year 2020 Volume: 38 Number: 2

IZ

https://izlik.org/JA74DF24DW

Cite

RIS / Bibtex

APA

Nnanwube, I. A., Udeaja, J. N., & Onukwulı, O. D. (2021). MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE. Sigma Journal of Engineering and Natural Sciences, 38(2), 589-601. https://izlik.org/JA74DF24DW

AMA

1.Nnanwube IA, Udeaja JN, Onukwulı OD. MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE. SIGMA. 2021;38(2):589-601. https://izlik.org/JA74DF24DW

Chicago

Nnanwube, Ikechukwu A., Judith N. Udeaja, and Okechukwu D. Onukwulı. 2021. “MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE”. Sigma Journal of Engineering and Natural Sciences 38 (2): 589-601. https://izlik.org/JA74DF24DW.

EndNote

Nnanwube IA, Udeaja JN, Onukwulı OD (June 1, 2021) MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE. Sigma Journal of Engineering and Natural Sciences 38 2 589–601.

IEEE

[1]I. A. Nnanwube, J. N. Udeaja, and O. D. Onukwulı, “MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE”, SIGMA, vol. 38, no. 2, pp. 589–601, June 2021, [Online]. Available: https://izlik.org/JA74DF24DW

ISNAD

Nnanwube, Ikechukwu A. - Udeaja, Judith N. - Onukwulı, Okechukwu D. “MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE”. Sigma Journal of Engineering and Natural Sciences 38/2 (June 1, 2021): 589-601. https://izlik.org/JA74DF24DW.

JAMA

1.Nnanwube IA, Udeaja JN, Onukwulı OD. MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE. SIGMA. 2021;38:589–601.

MLA

Nnanwube, Ikechukwu A., et al. “MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE”. Sigma Journal of Engineering and Natural Sciences, vol. 38, no. 2, June 2021, pp. 589-01, https://izlik.org/JA74DF24DW.

Vancouver

1.Ikechukwu A. Nnanwube, Judith N. Udeaja, Okechukwu D. Onukwulı. MODELING AND OPTIMIZATION OF ZINC RECOVERY FROM ENYIGBA SPHALERITE IN A BINARY SOLUTION OF ACETIC ACID AND HYDROGEN PEROXIDE. SIGMA [Internet]. 2021 Jun. 1;38(2):589-601. Available from: https://izlik.org/JA74DF24DW