Lebea Nathnael Nthunya

Dr. Lebea Nathnael Nthunya

Chemistry, University of the Witwatersrand, Johannesburg, Gauteng, South Africa
orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2022 in Journal of Environmental Management
Verified
Journal Article
Closed access
LNLebea Nathnael Nthunya
Lebea Nathnael Nthunya
MBMokgadi F. Bopape
Mokgadi F. Bopape
OMOranso T. Mahlangu
Oranso T. Mahlangu
BMBhekie B. Mamba
Bhekie B. Mamba
BBBart Van der Bruggen
Bart Van der Bruggen
HRHeidi Richards
Heidi Richards

14 February 2019 in Journal of Chemical Technology & Biotechnology
Verified
Journal Article
Closed access
PDF file
LNLebea Nathnael Nthunya
Lebea Nathnael Nthunya
Leo GutierrezLeo Gutierrez
Leo Gutierrez
SDSebastiaan Derese
Sebastiaan Derese
ENEdward Nxumalo
Edward Nxumalo
AVArne R. Verliefde
Arne R. Verliefde
SMSabelo Mhlanga
Sabelo Mhlanga

1 March 2019 in Separation and Purification Technology
Verified
Journal Article
Closed access
NKN.P. Khumalo
N.P. Khumalo
LNLebea Nathnael Nthunya
Lebea Nathnael Nthunya
ECE. De Canck
E. De Canck
SDS. Derese
S. Derese
AVA.R. Verliefde
A.R. Verliefde
DDD.S. Dlamini
D.S. Dlamini

15 May 2024 in Chemosphere
Verified
Journal Article
Open access
LNLebea Nathnael Nthunya
Lebea Nathnael Nthunya
KCKok Chung Chong
Kok Chung Chong
SLSoon Onn Lai
Soon Onn Lai
Woei Jye LauWoei Jye Lau
Woei Jye Lau
Eduardo Alberto López-MaldonadoEduardo Alberto López-Maldonado
Eduardo Alberto López-Maldonado
OMOranso Themba Mahlangu
Oranso Themba Mahlangu
Textile and cosmetic industries generate large amounts of dye effluents requiring treatment before discharge. This wastewater contains high levels of reactive dyes, low to none-biodegradable materials and chemical residues. Technically, dye wastewater is characterised by high chemical and biological oxygen demand. Biological, physical and pressure-driven membrane processes have been extensively used in textile wastewater treatment plants. However, these technologies are characterised by process complexity and are often costly. Also, process efficiency is not achieved in cost-effective biochemical and physical treatment processes. Membrane distillation (MD) emerged as a promising technology harnessing challenges faced by pressure-driven membrane processes. To ensure high cost-effectiveness, the MD can be operated by solar energy or low-grade waste heat. Herein, the MD purification of dye wastewater is comprehensively and yet concisely discussed. This involved research advancement in MD processes towards removal of dyes from industrial effluents. Also, challenges faced by this process with a specific focus on fouling are reviewed. Current literature mainly tested MD setups in the laboratory scale suggesting a deep need of further optimization of membrane and module designs in near future, especially for textile wastewater treatment. There is a need to deliver customized high-porosity hydrophobic membrane design with the appropriate thickness and module configuration to reduce concentration and temperature polarization. Also, energy loss should be minimized while increasing dye rejection and permeate flux. Although laboratory experiments remain pivotal in optimizing the MD process for treating dye wastewater, their time-intensive nature poses a challenge. Given the multitude of parameters involved in MD process optimization, artificial intelligence (AI) methodologies present a promising avenue for assistance. Thus, AI-driven algorithms have the potential to enhance overall process efficiency, cutting down on time, fine-tuning parameters, and driving cost reductions. However, achieving an optimal balance between efficiency enhancements and financial outlays is a complex process. Finally, this paper suggests a research direction for the development of effective synthetic and natural dye removal from industrially discharged wastewater.

1 February 2021 in Journal of Environmental Chemical Engineering
Verified
Journal Article
Closed access
BMBoitumelo Makgabutlane
Boitumelo Makgabutlane
LNLebea Nathnael Nthunya
Lebea Nathnael Nthunya
MMManoko S. Maubane-Nkadimeng
Manoko S. Maubane-Nkadimeng
SMSabelo D. Mhlanga
Sabelo D. Mhlanga

1 March 2019 in Separation and Purification Technology
Verified
Journal Article
Closed access
NKNomcebo Khumalo
Nomcebo Khumalo
LNLebea Nathnael Nthunya
Lebea Nathnael Nthunya
SDSebastiaan Derese
Sebastiaan Derese
Machawe Mxolisi MotsaMachawe Mxolisi Motsa
Machawe Mxolisi Motsa
AVArne Verliefde
Arne Verliefde
DDDerrick S. Dlamini
Derrick S. Dlamini