Excerpt from The Utilisation of Waste Products: A Treatise on the Rational Utilisation, Recovery, and Treatment of Waste, Products of All Kinds
It will call forth no contradiction if we say that even to-day a vast number of substances are laid on one side as useless and are then exposed to the gradual decay which no organic body can escape, since it already contains the inherent conditions for decay-substances which, by rational treatment, would frequently be capable of further utilisation. Not rarely would such apparently worthless bodies produce a product, or even a series of products, which would make the value of the waste matter almost equal to that of the original material.
To show the truth of what has just been said, and the general high importance of waste products in regard to reutilisation and economic yield, I may point to the chemical industries. Nowhere is the number of such cases so striking, numerically as well as economically, as in these industries.
I may recall for a moment the rich treasure in coal-tar, and mention the many oils and ethers, which so frequently, thanks to modern chemistry, owe their origin to residues and apparently worthless waste.
More than ever in these days it is necessary to pay careful regard to the apparently valueless. Competition compels all round the most economical, and consequently the most rational, labour; and apart from proper management - economical execution, division of labour, and the replacement of manual labour by the exact machine-power -the means of prosperity for everyone is to be found in the greatest possible utilisation of all waste.
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