§ Mr. Laurance Reedasked the Secretary of State for Trade and Industry how much money his Department spends on research into desalination technology each year; and how the money is allocated between alternative methods of desalting.
§ Mr. RidleyExpenditure by the Department on research into desalination technology is incurred through the Atomic Energy Authority. The Authority is currently engaged upon a second three-year programme, during which annual expenditure is averaging some £950,000 distributed between the various processes approximately as follows:
Per cent. Multi-stage flash distillation 30.5 Multiple effect distillation (e.g., Vertical Tube Evaporator and and Horizontal Falling Film) 17 Secondary refrigerant freezing 18 Reverse osmosis 15.5 Electrodialysis 3 Engineering and systems analyses 16