Ecology, water and enterprise development in selected rural South African towns von Toerien, D.F., Seaman, M.T.

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Limnological aspects of small sewage ponds von Wrigley, T.J., Toerien, D.F.

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Proportionality in enterprise development of South African towns von Toerien, Danie F, Seaman, Maitland T

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Fish production in small oxidation ponds von Wrigley, T.J., Toerien, D.F., Gaigher, I.G.

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An investigation of a fertilizer-tap water medium for mass algal production in outdoor plastic-enclosed systems von Geldenhuys, D. J., Walmsley, R. D., Toerien, D. F.

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Bacterial activity in soils of a sub-antarctic island von Grobler, D.C., Toerien, D.F., Smith, V.R.

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Recirculation in a small sewage pond system von Wrigley, T.J., Toerien, D.F., Moller, A., Pieterse, A.J.H.

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Laboratory studies on the suitability of a fertilizer-tap water medium for mass culture of algae von Geldenhuys, D. J., Walmsley, R. D., Toerien, D. F.

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A review of sediment/water quality interaction with particular reference to the Vaal River system von GROBLER, D. C, TOERIEN, D. F, ROSSOUW, J. N

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The need to consider water quality in the planning of new urban development: a simulation study von Grobler, D.C. & Toerien, D.F.

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Influence of the growth rate on the macromolecular composition of Acinetobacter calcoaceticus in carbon‐limited chemostat culture von Preez, J.C., Lategan, P.M., Toerien, D.F.

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Quality of algal material produced on a fertilizer-tap water medium in outdoor plastic-enclosed systems von Geldenhuys, D.J., Walmsley, R.D., Toerien, D.F.

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Utilization of short chain monocarboxylic acids in an effluent of a petrochemical industry by Acinetobacter calcoaceticus von Du Preez, J. C., Lategan, P. M., Toerien, D. F.

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Carbon flow in a small turbid man-made impoundment von Grobbelaar, J. U., Toerien, D. F.

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Reflections on anaerobic process biotechnology and its impact on water utilisation in South Africa von Toerien, D.F. & Maree, J.P.

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Growth models for Salvinia molesta von Toerien, D.F., Cary, P.R., Finlayson, C.M., Mitchell, D.S., Weerts, P.G.J.

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Microbial heterotrophy in an effluent treatment system using macrophytes von Toerien, D.F., Toerien, M.C.

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The chemical composition of the waters flowing into Roodeplaat Dam von Walmsley, R. D. & Toerien, D. F.

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Algal growth prediction using growth kinetic constants von Toerien, D.F, Huang, C.H

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The proteolytic bacteria present in the anaerobic digestion of raw sewage sludge von Siebert, M.L, Toerien, D.F

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