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Introduction to commonly used flocculants

Released Date: Nov 17,2015 Article Source: Yuanlai Water Treatment
In water treatment, we often use flocculants. According to their chemical composition, flocculants can be generally classified into two categories: inorganic flocculants and organic flocculants. Among them, inorganic flocculants include inorganic coagulants and inorganic polymer flocculants. Organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. The following is an introduction to the commonly used flocculants.   Inorganic flocculants include aluminium sulfate, aluminium chloride, ferric sulfate and ferric chloride. Modified single cationic inorganic flocculants include polysilicate flocculant (PSAA), polyferric silicate sulfate (PFSS), polyphosphorus ferric chloride (PPFC), polyphosphorus aluminum chloride (PPAC), and polyferric silicate (PSF). 2. Modified multi-cationic inorganic flocculants such as polyaluminium ferric sulfate chloride (PAFCS) and Poly

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We often use it in water treatmentFlocculant,Flocculants can be generally classified according to their chemical compositionInorganic flocculantandOrganic flocculantTwo types. Among them, inorganic flocculants include inorganic coagulants and inorganic polymer flocculants. Organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants andMicrobial flocculantNow let's introduce some commonly used flocculants. 

I.Inorganic flocculant

Inorganic flocculants includeAluminum sulfate,Aluminum chloride,Ferric sulfate,Ferric chloride.

1,Modified single cationic inorganic flocculant

Polysilicic acid flocculant(PSAA),Polymeric ferric silicate sulfate(PFSS)Polyphosphorus ferric chloride(PPFC)Polyphosphate-aluminum chloride(PPAC),Polymeric ferric silicate(PSF).

2,Modified multi-cationic inorganic flocculant

"Aggregation"Sulfuric acidAluminum ferric chloride(PAFCS),Polymerized ferrosiliconFlocculant,Aluminum-iron copolymer composite flocculant,Polymeric ferric sulfate,Polyaluminium chloride,Polyaluminium ferric chloride.

Ii.Organic polymer flocculant

Organic polymer flocculants are20Century60A new type of wastewater treatment agent that developed only in the late 1990s. Compared with traditional flocculants, it can increase energy efficiency several times over and is relatively inexpensive, thus showing a trend of gradually becoming the mainstream agent. In addition to the stable product quality, the production of organic polymer flocculants has accounted for the total output of flocculants30%60%.

1,Nonionic organic polymer flocculant

Nonionic organic polymer flocculants are mainly polyacrylamide. It is obtained by the polymerization of acrylamide.

2,Anionic organic polymer flocculant

Polyacrylic acidSodium polyacrylateCalcium polyacrylateAnd polymers such as alkali-hydrolyzed products of polyacrylamide.StyreneCopolymers of sulfonates, lignosulfonates, acrylic acids, methacrylic acids, etc.

3,Cationic organic polymer flocculant

MainlyQuaternized polyacrylamide.


The above is an introduction to commonly used flocculants. If you encounter any problems in the selection and use of flocculants, please consult Beijing Yuanlai Water Treatment Equipment Co., LTD15We have been dedicated to the water treatment industry for years and are worthy of your trust!


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