§ Lieutenant-Colonel Sir J. NORTON GRIFFITHS
asked the President of the Board of Trade whether he can give the results of any experiments conducted indicating the presence of considerable quantities of coal gas, sulphate of ammonia, and lubricating oil in town sewage; whether these substances can be profitably extracted from town sewage and converted to economic use; and whether, if reliable experimental results are not available, exhaustive measures will be taken to determine sewage value as a source of supply of coal gas, sulphate of ammonia, lubricating oil, and fertilisers?
§ Mr. BRIDGEMAN
Proposals for the conversion of sewage and sewage sludge into products of utility are now receiving the careful consideration of His Majesty's Government. The Local Government Board are, I believe, at present engaged in investigating the matter, and a Report is in course of preparation by the Ministry of Munitions.