**Author details**

Donald Tyoker Kukwa1 , Felicia Omolara Afolabi1 , Emmanuel Kweinor Tetteh1 , Ifeanyi Michael Smarte Anekwe2 \* and Maggie Chetty1

1 Department of Chemical Engineering, Durban University of Technology, Durban, South Africa

2 School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg, South Africa

\*Address all correspondence to: anekwesmarte@gmail.com

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