The Utilization of Household Sewage

1878 Scientific American  
DECEMBER 7, 1878. alkalies, and generating meli.ssylic alcohol. The latter [ BLEACHING OF TEXTILE FIBERS. :la3 been recognized by the author as the cause of the solu-I d . . :) i1ity of petroleum. When this alcohol is separated from . T HE usu � l mo e of . bleach�ng textII� fibers, especIally of the wax, and added to a strong mixture of soap and water, lmen, . consI�t� essentI�lly �f the solutIon of ��e gluten and It is entirely dissolved On tne other side, melissylic alco. other Im . pUrItles
more » ... c(;lll tamed m �he fiber, by bOllIng the latter .101 is entirely soluble in petroleum in all proportions. A i for se velal days wIth an al�alme lye. Thus the fibers � re ;Jetrolic solution of melissylic alcohol, added to a mixture more exp<;>sed and more easIly acted � pon by the chlor: me >f the latter and a strong solution of soap in water, COI ll -� ath applIed � fterwa �ds . . The chlo�me treatment consIsts bines easily, forming a perfectly clear liquid. Hence the III the succeS S Ive applI�atlO.n of ch!or . me �aths, alternated by pDwer of Carnauba wax, i. e., melissylic alcohol, as mani-weak baths of sulplInr � c aCId, mUrIatIc aCld, . and sod � . These fested in the petroleum soaps. Further investigations have. are grad � ally re�uced III strengt�. The . aCId so�utlOns free shown that petroleum may be made soluble in soapy mix-i ! h � chlorme retamed and neutr�lIze the lIme , wh�le the soda tures by other substances dissolving petroleum, and in their, IS mtended ! o . saturate the r�tamed traces of a�Id and thus turn compatible with those soaps such as amylic and me-prevent an m J ury of the fabrIC . . Repeated washmgs and ex· th)'lic alcohol ' i posure to the rays of the sun fi msh the process. . _______ ' The disadvantages of the same are the following : The CONTA I . manifold operations with large quantities of water and MINAT ON OF SUB NITRATE OF BISMUTH
doi:10.1038/scientificamerican12071878-2440fsupp fatcat:w2hnlm3p6zbvjgrtfaryxlea2q