Compositional Analysis of Municipal Solid Waste from Tshwane Metropolitan Landfill Sites in South Africa for Potential Sustainable Management Strategies

Khanyisile Lepota, Kasturie Premlall and Major Mabuza ()
Additional contact information
Khanyisile Lepota: Department of Chemical, Metallurgical and Materials Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa
Kasturie Premlall: Department of Chemical, Metallurgical and Materials Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa
Major Mabuza: Department of Chemical Engineering Technology, Faculty of Engineering and the Built Environment, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2088, South Africa

Waste, 2025, vol. 3, issue 3, 1-17

Abstract: The modern world has brought extensive socioeconomic and ecological changes. Urbanization in developing nations has significantly increased municipal solid waste, necessitating in-depth understanding of waste composition particularly in developing nations for sustainable management practices. This study aimed to classify and characterize waste while evaluating potential waste management methods. Mixed methods were used to examine landfilled waste from Soshanguve and Hatherley sites in Tshwane Metropolitan, South Africa, using techniques such as Fourier transform infrared spectroscopy, X-ray fluorescence, proximate, and ultimate analysis. Seasonal variations in waste components were analysed over two seasons. The study identified that both sites are predominantly composed of organic waste, accounting for over 42 wt.%, with moisture content of ~50 wt.%, and minimal recyclables (<5 wt.%). Seasonal variations in MSW were significant for glass (<4% increase), organic waste (<5% increase), while plastic decreased by ~7% during spring. The biodegradable waste showed high carbon (>50%) and oxygen (>40%) levels, low ash content (<18%), and calorific values of 15–19 MJ/kg. Biodegradables mainly contained oxides of calcium, silicon, iron (III), and potassium with chemical composition indicating functional groups that emphasize composting and energy recovery benefits. The research provides insights into sustainable waste management, revealing waste composition at Tshwane landfills, aiding informed decision-making for resource usage and environmental conservation.

Keywords: biodegradable waste; characterization; composition; landfill; municipal solid waste (search for similar items in EconPapers)
JEL-codes: Q1 Q16 Q18 Q2 Q20 Q23 Q24 Q25 Q28 Q3 Q31 Q38 Q5 (search for similar items in EconPapers)
Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2813-0391/3/3/22/pdf (application/pdf)
https://www.mdpi.com/2813-0391/3/3/22/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jwaste:v:3:y:2025:i:3:p:22-:d:1701798

Access Statistics for this article

Waste is currently edited by Mr. Sumail Li

More articles in Waste from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().