Popular science monthly . for holding the head Cand tube A together,serves as a means forconnecting with one ofthe terminals /, whilea screw / in the upperend of the rotl B acts asa binding-post for theother terminal G. The tube B shouldhave a few notches, asat //, at its lower inch from the upperend are two or moreholes /, the object be-ing to provide a meansfor circulating tlic waterwluii the current is do-ing tlic work. Tins manner of treat-ing water is known asthe direct electricalmethod; whereas ozoni-/ation is the indirect means. F^oth sys-tums, however, depend on the generationan
Popular science monthly . for holding the head Cand tube A together,serves as a means forconnecting with one ofthe terminals /, whilea screw / in the upperend of the rotl B acts asa binding-post for theother terminal G. The tube B shouldhave a few notches, asat //, at its lower inch from the upperend are two or moreholes /, the object be-ing to provide a meansfor circulating tlic waterwluii the current is do-ing tlic work. Tins manner of treat-ing water is known asthe direct electricalmethod; whereas ozoni-/ation is the indirect means. F^oth sys-tums, however, depend on the generationand application of oxone, or o.\y-gen, which attacks the organic matter inwater. The result is that such substancesare coagulated and precipitated, thusleaving the water pure and system is in every respect superiorIn filtration, ihe latter method ,i)Ut does not purify. Tiie arliiie thus ronslru(tc(l is .ul-Miirably adaplcil li> in a glass ofwater, ;ls shown, fiir a minuli- or The water moves up along thespace between the two electrodesand down outside the tube and then be taken out. Theaction of thecurrent in passing through the waterbetween the electrodes A, B, causes amilky appearance, which graduallychanges. The solid matter first gathersat the surface of the water, and aftergiving off tlie gases contained in theglobules, falls to the bottom, leavinga clear liquid. A wonderful test of the efficiency oftliis method of purif\ing may be madeb>adding a few drops of ink to the waterbefore putting in the device. It will befound that the precipi-tate will contain all theink, and that the waterwill be as clear as water moves upalong the space betweenthe two electrodes, pass-es out through the holes/ and down outside ofthe tube B. By meansof the circulation thusset up every part of thewater is treated and tiieoxygen bubbles passthrough tlie water, thusattacking the organicmatter and eliminatingit entirely. The dui^lex wire
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
