D. Toerien

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Interrelations between biological and chemical characteristics in anaerobic digestion

P. G. Thiel, J. Kotzé, D. Toerien, 1968 .

Direct-isolation studies on the aerobic and facultative anaerobic bacterial flora of anaerobic digesters receiving raw sewage sludge

D. Toerien, 1967 .

A method for the enumeration and cultivation of anaerobic “acid-forming” bacteria present in digesting sludge

D. Toerien, M. Siebert, 1967 .

Enrichment culture studies on aerobic and facultative anaerobic bacteria found in anaerobic digesters

D. Toerien, 1967 .

A biological and chemical study of several anaerobic digesters

D. F. Toerien, P. G. Thiel, J. Kotzé, 1968 .

Population description of the non-methanogenic phase of anaerobic digestion—IV. Intermediary metabolism of non-methanogenic bacteria

J. Kotzé, D. Toerien, 1970 .

Population description of the non-methanogenic phase of anaerobic digestion—1. Isolation, characterization and identification of numerically important bacteria

D. Toerien, 1970 .

The proteolytic bacteria present in the anaerobic digestion of raw sewage sludge

D. Toerien, M. Siebert, 1969 .

Ecology, water and enterprise development in selected rural South African towns

M. Seaman, D. Toerien, 2011 .

Management of autotrophic mass cultures of micro-algae

R. Walmsley, D. Toerien, J. Grobbelaar, 1987 .

A LIMNOLOGICAL INVESTIGATION OF LAKE LIAMBEZI, CAPRIVI

R. D. Walmsley, W. E. Scott, M. Seaman, 1978 .

Modification of the Astell roll tube apparatus for the enumeration and cultivation of anaerobic bacteria.

D. Toerien, M. Siebert, 1967, Laboratory practice.

THE SUMMER CONDITION OF THREE EASTERN TRANSVAAL RESERVOIRS AND SOME CONSIDERATIONS REGARDING THE ASSESSMENT OF TROPHIC STATUS

R. D. Walmsley, D. Toerien, 1977 .

Enhanced Biological Phosphorus Removal in Activated Sludge Systems

T. E. Cloete, L. Lötter, A. Gerber, 1990 .

The effect of carbon on algal growth—Its relationship to eutrophication

D. F. Toerien, J. C. Goldman, Joel C. Goldman, 1972 .

Anaerobic digestion I. The microbiology of anaerobic digestion

D. F. Toerien, W.H.J. Hattingh, D. Toerien, 1969 .

Laboratory studies on the suitability of a fertilizer-tap water medium for mass culture of algae.

D. Geldenhuys, D J Geldenhuys, R D Walmsley, 1985, Biotechnology and bioengineering.

The identification of Enterobacteriaceae from breweries: combined use and comparison of API 20E system, gel electrophoresis of proteins and gas chromatography of volatile metabolites.

K. Kersters, H. V. van Vuuren, J. De Ley, 1981, The Journal of applied bacteriology.

Population description of the non-methanogenic phase of anaerobic digestion—II. Hierarchical classification of isolates

D. Toerien, 1970 .

ENTEROBACTER AGGLOMERANS—A NEW BACTERIAL CONTAMINANT ISOLATED FROM LAGER BEER BREWERIES

K. Kersters, J. Ley, R. Meisel, 1978 .

Eutrophication Levels of some South African Impoundments0 1V0 Vaal Dam

D. Toerien, D. J. Stevn, J. Visser, 1976 .

Eutrophication levels of some South African impoundments III. Roodeplaat Dam

D. Toerien, J. Visser, D. Steyn, 1976 .

The retardment of algal growth in maturation ponds

D. Post, D. Toerien, 1974 .

A PRELIMINARY LIMNOLOGICAL STUDY OF BUFFELSPOORT DAM AND ITS CATCHMENT

R. Walmsley, D. Toerien, 1979 .

THE LIMNOLOGY OF SOME SOUTH AFRICAN IMPOUNDMENTS I. THE PHYSICO-CHEMICAL LIMNOLOGY OF HARTBEESPOORT DAM

D. F. Toerien, W. E. Scott, M. T. Seaman, 1977 .

The effect of hexoses and a hexose polymer on the levels of some enzyme activities of a bacterium isolated from an anaerobic digester

J. Kotzé, D. Toerien, 1967 .

Bacterial activity in soils of a sub-Antarctic island.

V. Smith, D. Toerien, D. Grobler, 1987 .

AN INTRODUCTION TO THE LIMNOLOGY OF ROODEPLAAT DAM

R. Walmsley, D. Toerien, D. J. Steÿn, 1978 .

Growth models for Salvinia molesta

D. S. Mitchell, C. Finlayson, D. Toerien, 1983 .

The eutrophication levels of four South African impoundments: With 3 figures and 5 tables in the text

D. Toerien, D. Steyn, 1975 .

PHENOTYPIC PROPERTIES, METABOLIC ACTIVITIES AND ELECTROPHORETIC PROTEIN PATTERNS OF Klebsiella oxytoca AND Klebsiella pneumoniae STRAINS ISOLATED FROM LAGER BEER BREWERIES

D. Toerien, H. J. J. Vuuren, 1981 .

Biological changes during the adaptation of an anaerobic digester to a synthetic substrate

D. F. Toerien, P. G. Thiel, J. Kotzé, 1967 .

Algal growth prediction using growth kinetic constants

Ching-Hua Huang, D. Toerien, 1973 .

SILICA, NITROGEN AND PHOSPHORUS REQUIREMENTS OF SOME SOUTHERN AFRICAN DIATOMS

G. Coetzer, D. Toerien, F. Schoeman, 1977 .

Influence of the growth rate on the macromolecular composition of Acinetobacter calcoaceticus in carbon-limited chemostat culture

D. F. Toerien, J. D. Preez, Pieter M. Lategan, 1984 .

The bacterial nature of the acid-forming phase of anaerobic digestion

D. Toerien, W. Hattingh, M. Siebert, 1967 .

Factor analysis as an aid in an ecological study of anaerobic digestion

P. G. Thiel, J. Kotzé, D. Toerien, 1969 .

Enumeration, isolation and identification of sulphate-reducing bacteria of anaerobic digestion

M. Hattingh, P. G. Thiel, D. Toerien, 1968 .

Growth parameters of Acinetobacter calcoaceticus on acetate and ethanol

J. D. Preez, P. Lategan, D. Toerien, 1981, European journal of applied microbiology and biotechnology.

Enzymatic patterns in two denitrifying microbial populations

T. R. Davies, D. Toerien, P. J. Toit, 1970 .

Enumeration studies on methanogenic bacteria

D. Toerien, W. Hattingh, M. Siebert, 1968 .

Utilization of short chain monocarboxylic acids in an effluent of a petrochemical industry by Acinetobacter calcoaceticus

J. D. du Preez, P. Lategan, D. Toerien, 1985, Biotechnology and bioengineering.

Selection patterns in a denitrifying population

T. R. Davies, D. Toerien, P. J. D. Torr, 1971 .

Population description of the non-methanogenic phase of anaerobic digestion—III. Non-hierarchical classification of isolates by principal component analysis

D. Toerien, 1970 .