Doctor of Philosophy, Rhodes University, Grahamstown, South Africa, 1999.
Laboratory assistant Plascon Paints, Krugersdorp, South Africa, 1981—1981. High School teacher, head department Uitenhage High School, 1986—1999. Researcher, lecturer University Zululand, Kwadlangezwa, South Africa, 1999—2001.
Senior lecturer North-West University, Potchefstroom Campus, South Africa, 2002—2006, associate professor, microbiology subject group chair person, since 2007.
Member of South African Council Natural Science Professions, Water Institute South Africa, Royal Society South Africa.
Married Sharon Sylvia Smith. Children: Krisdan, Angeron Du Plessis, Joshua-Paul.