. Journal. n admixture of car-bonaceous matter and detached particles of lignite, withclay, is treated in a similar manner. This filteringmaterial is said to possess the following advantages:—il) It is superior to animal charcoal lor water filtration,inasmuch as it is free from calcium phosphate. I does not favour the growth of the lower forms of animallife, but is an active agent in their destruction. (3) It isvaluable for the filtration of acids. (4) It can be manu-factured and supplied at less than half the price of animalcharcoal. (5) It is a good deodoriser and decolouriser ;and (6) it ca
. Journal. n admixture of car-bonaceous matter and detached particles of lignite, withclay, is treated in a similar manner. This filteringmaterial is said to possess the following advantages:—il) It is superior to animal charcoal lor water filtration,inasmuch as it is free from calcium phosphate. I does not favour the growth of the lower forms of animallife, but is an active agent in their destruction. (3) It isvaluable for the filtration of acids. (4) It can be manu-factured and supplied at less than half the price of animalcharcoal. (5) It is a good deodoriser and decolouriser ;and (6) it can be used with economy and advantage forsugar refining, a- it causes less waste, in consequenceof retaining less of the saccharine matter.—E>. B. XYL—BREWING, WINES, SPIRITS, Etc. Ferrets Wine Fermenting Vat. Dingl. Polyt. Journ. 254 [12], Perret recommends a process introduced byhim with success twenty years ago, for avoiding the evilsattending fermentation in presence of the husks. The. husks tend to rise to the surface of the must, giving riseto acetic fermentation, and a higher temperature in theupper portion of the vat. Perrets vat provides that the 238 THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. husks are kept in fairly equal distribution throughout the progress of fermentation. To do this, il is fitted withvertical supports, • carrying pins inclined downwards,?whilst hurdles are laid in horizontally, which rise with the must during the Idling, but are kept submerged at
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
