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一过滤的基本原理是利用多孔的“滤材”或者叫“过滤介体”来把液体里的固体分开。普通的固体粒子都是多末大呢?一般可以说:粗粒子悬浮液悬浮的粒子直径在100μ~(1)以上。细粒子悬浮液悬浮的粒子直径在100—0.5μ之间。浑浊液里面的粒子可以小到100mμ~(2),或0.1μ。胶体溶液分散内相质点的大小从100mμ起到等于分子般的大小。乳浊液是两种液体的混合液,它悬浮质点的临界大小约等于0.4—0.5μ。普通球菌的直径是1一2μ。桿菌最小的流行性感冒桿菌长径0.5—1.0μ,幅径0.2—0.3μ。最大的炭疽菌长径2—5μ,幅径1—2μ。螺旋菌的大小很不一致。可以长达几十个μ。例如回归热螺旋菌普通长度是10—20μ,但是有长到40μ的。
The basic principle of a filter is the use of porous “filter ” or “filter media ” to separate the liquid in the solid. Ordinary solid particles are more than the end of the big? Generally can be said: coarse particle suspension suspended particle diameter of 100μ ~ (1) or more. Particle suspension suspended particle diameter between 100-0.5μ. Particles in the turbid solution can be as small as 100 mμ ~ (2), or 0.1 μ. Colloidal solution dispersed phase particle size from 100mμ equal to the size of the molecule. An emulsion is a mixture of two liquids whose critical mass of suspended particles equals about 0.4-0.5μ. The diameter of common cocci is 1 a 2μ. Bacillus minimal influenza bacteria long diameter 0.5-1.0μ, amplitude 0.2-0.3μ. The largest anthrax long diameter 2-5μ, amplitude 1-2μ. Spirodel size is very inconsistent. Can be up to dozens of μ. For example, the return of the heat spirochetes is generally 10-20μ in length, but up to 40μ in length.