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Microplastics are plastic particles that are less than 5mm in size and cause great concern as they pose threats to aquatic species and human beings due to their potential entry into the food chain. Most microplastics are derived from goods that are in daily use such as textiles, plastic packages, cosmetics and car tyres, but they can also be formed when larger plastics break down. They not only contribute to the accumulation of plastics in the environment, but due to absorption, they can also contribute to the spreading of micropollutants in the environment. Studies have indicated the presence of micro and nano plastics in wastewater treatment effluents, which can lead to further contamination of the receiving aquatic environment.
Aims: This project proposes to address the challenges caused by outbreaks related to the occurrence and microbial association of these microplastics in selected full scale WWTPs of South Africa.
Objectives:
1. To develop a method to detect, quantify and characterise microplastics from wastewater treatment plants
2. To assess the fate and comparative removal of microplastics in full-scale wastewater treatment plants.
The first significant impact of the project is a methodology for the detection and isolation of microplastics from organic-rich environments such as wastewater and sludge. Additionally, the project is expected to provide information on the occurrence and characteristics of microplastics in wastewater and help to determine the efficiency of wastewater treatment systems in KwaZulu-Natal in the removal of microplastics. Finally, it will provide information on the potential of microplastics as carriers of pathogens and antibiotic-resistant genes in the aquatic environment.
The passion behind this project stems from the fact that the impact of microplastics as carriers of pathogens and ARBs may far exceed their direct impact on our ecosystem and most especially, human health. However, this has not received enough attention, therefore, the project provides much-needed information for instituting appropriate guidelines concerning plastic use and disposal.
Dr Sheena Kumari and Prof Faizal Bux Dr Isaac Dennis Amoah, Dr Khalid Muzamil Gani, Dr Leanne Pillay, Ms Fitsum Mammo Kassa Tel: 031 373 2782 | Email: sheenak1@dut.ac.za
2020-2022
R1 337 748.72
