Cyclopedia of textile work : a general reference library on cotton, woollen and worsted yarn manufacture, weaving, designing, chemistry and dyeing, finishing, knitting, and allied subjects (1907)
Chicago : American school of correspondence · leaf 268
e resorted to andthe process usually comes under the general head of water soften-ing. If only mechanical impurities and organic matter are presentin the water, various forms of filtration may be sufficient, butit must be remembered that ordinarily filtration does not removethe hardness of a… … Fig. 77. Front Elevation of Kennicott WaterSoftener.
Textile industry · Textile fabrics
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
