Classification of flocculants

Any substance used to precipitate flocs from solutes, colloids or suspended particles in an aqueous solution is called a flocculant

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According to the composition of flocculants, they can be divided into inorganic flocculants and organic flocculants; according to their molecular weight, they can be divided into low molecular and macromolecules; if according to the nature of the charge after the dissociation of their functional groups, It can also be divided into non-ionic, anionic, cationic and amphoteric types

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Inorganic flocculants can be divided into inorganic low-molecular flocculants and inorganic high-molecular flocculants according to their molecular weight

Inorganic polymer flocculants are readily available, easy to prepare, and inexpensive.

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Compared with inorganic polymer flocculants, organic polymer flocculants have a small amount, strong flocculation ability, fast flocculation speed, high efficiency, are affected by coexisting salts, pH and temperature, and produce less sludge and are easy to handle.

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Synthetic organic polymer flocculants can be divided into non-ionic, anionic, cationic and amphoteric types according to the nature of the charge on the molecular chain

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According to different raw materials, natural polymer modified flocculants can be divided into modified starch flocculants, modified guar gum flocculants, xanthan gum and its modified products, carboxymethyl cellulose (sodium) and its Modified products, sodium alginate, modified lignin flocculants, plant tannins and their modified products, and F691 powder modified products