Excerpt from The Utilisation of Wood-Waste
The rational utilisation of waste products is at all times important, but as our industries become more and more developed the working up of the waste or bye-products which may be produced in any process becomes absolutely essential from an economical standpoint.
Many instances could be cited in which a waste product has become one of the chief products, sometimes nearly, if not quite, as important as the material which was first made. This has proved to be the case in many industries, but confining ourselves to the present subject, large quantities of wood-waste are produced as the result of the felling of trees and the conversion of the wood into timber of various kinds. This includes twigs and branches, slabs, shavings, and sawdust, all of which are capable of being utilised for a variety of purposes.
By treatment of such wood-waste it is possible to obtain turpentine, wood oils, tar and pitch, acetic acid, acetone, methyl alcohol, formaldehyde, charcoal, and numerous other products as the result of distillation. It can also be used for heating purposes, gas-making, manufacture of alcohol, dyes, explosives, artificial wood compositions, linoleum, wood wool, wood flour, etc. It is, in fact, used for all these purposes at the present time.
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