The need for guidelines to bridge the gap between ideal drinking-water quality and that quality which is practically achievable and acceptable The need for guidelines to bridge the gap between ideal drinking-water quality and that quality which is practically achievable and acceptable
Evaluation of a number of methods for the determination of trace amounts of phosphates with flow injection analysis (FIA) Evaluation of a number of methods for the determination of trace amounts of phosphates with flow injection analysis (FIA)
Preliminary empirical models to predict reductions in total and low flows resulting from afforestation Preliminary empirical models to predict reductions in total and low flows resulting from afforestation
The use of Aspergillus niger (Strain 4) biomass for lead uptake from aqueous systems The use of Aspergillus niger (Strain 4) biomass for lead uptake from aqueous systems
The effect of dredging onlight penetration in the Boro River, Okavango Delta, Botswana, from 1972 to 1975 The effect of dredging onlight penetration in the Boro River, Okavango Delta, Botswana, from 1972 to 1975
Operation of anaerobic digesters at increased solids concentrations Operation of anaerobic digesters at increased solids concentrations
Allozyme differences between populations of chubbyhead barb (Barbus anoplus Weber, 1897) and Marico barb (B. motebensis Steindacher, 1894) Allozyme differences between populations of chubbyhead barb (Barbus anoplus Weber, 1897) and Marico barb (B. motebensis Steindacher, 1894)
Dividing-flow manifold calculations with a spreadsheet Dividing-flow manifold calculations with a spreadsheet
Parial replacement of fish meal with either soybean meal, brewers yeast or tomato meal in the diets of African sharptooth catfish Clarias gariepinus Parial replacement of fish meal with either soybean meal, brewers yeast or tomato meal in the diets of African sharptooth catfish Clarias gariepinus