The current rate of depletion of non-renewable resources and of the generation of waste for disposal have prompted the call for waste to be reclaimed and re-used. This paper describes the general forms which such recycling presently takes and identified the factors which bear upon the amount and...

This paper describes a case study in the application of a productivity analysis model in a plant producing industrial gases. Although the process is a relatively simple one, several inputs (labour, electricity, capital and some materials) and several outputs (liquid and gaseous oxygen, gaseous...