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Why can industrial gelatin be used as flocculant
Time：
2017-12-05
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Industrial gelatin has the property of absorbing water and expanding in cold water, and one serving of gelatin can absorb 1 to 20 times its own weight in water. Industrial gelatin is a powerful protective colloid, but at very low concentrations, it shows the opposite effect, that is, it can separate flocculent precipitates from the dispersing medium. Therefore, in terms of this property, industrial gelatin is also a flocculant.
Because the molecular weight of industrial gelatin is slightly low, it is difficult to produce flocculation, but after crosslinking with a small amount of formaldehyde, the molecular weight is significantly increased, and it has flocculation ability, which belongs to the anionic type. It is used for wastewater treatment and is biodegradable. Its price is cheap, can be further attached to the quaternary cationic groups, industrial gelatin molecular chains still retain some of the fusiform anions, so as to become a yin-yang amphoteric electrolyte, expand the range of flocculation.
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Are industrial gelatin and bone glue the same thing
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