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Polyacrylamide(9003-05-8)for sewage treatment

Polyacrylamide is a linear polymer comprised of monomers unit with functional groups of amide that adsorb on to the surface of particles. These particles are bridged together by the long polymer chain drawing the particles closer together. This process is called flocculation and is widely used in wastewater treatment.

POLYACRYLAMIDE CHARACTERISTICS

FLOCCULATION	POLYACRYLAMIDE has the ability to bridge together particles suspended in solution by an adsorption process. Polymers often have electrostatic charges that allow for surface particle neutralization resulting in flocculation.
ADSORPTION AND ADHESION	POLYACRYLAMIDE creates reversible covalent bonds between particle surfaces allowing the particle to gain size and mass.
FRICTION REDUCTION	POLYACRYLAMIDE can effectively reduce fluid friction in a pipe. The friction loss can be minimized by 50-80% with small amounts of POLYACRYLAMIDE added to a liquid.
THICKENING	POLYACRYLAMIDE is used to thicken a variety of sludges in both neutral and acidic conditions. POLYACRYLAMIDE used for thicken can have additional structures such as branched and cross-linked. POLYACRYLAMIDE will hydrolyze at pH values above 10.

When aqueous POLYACRYLAMIDE solutions are mixed with sewage, the active amide groups on the polymer chain adsorb onto the surface of suspended material in the sewage and created bridges between them such that they now begin to exclude water from their newly formed structure. Once a small particle, now form larger flocs which can improve sedimentation rates in clarifiers, floatation rates in DAF systems and water removal in sludge thickening equipment. POLYACRYLAMIDE is widely used in domestic sewage treatment, mining tailings pulp & paper making, petrochemicals, chemicals, textiles, oil sands and mining industries.

OUR PRODUCT CHARACTERISTICS

ITEMS	ANIONIC POLYACRYLAMIDE	CATIONIC POLYACRYLAMIDE	NON-IONIC POLYACRYLAMIDE	AMPHOTERIC POLYACRYLAMIDE
PARTICLE SIZE (MM)	0.15	0.15	0.15	0.15
DRY WEIGHT (%)	>89	>89	>89	>89
DISSOLUTION TIME (HOUR)	<1	<1	<1	<1
INSOLUBLE (%)	<0.2	<0.2	<0.2	<0.2
MOLECULAR WEIGHT (MILLION)	3-29	3-16	3-15	8-15
RELATIVE CHARGE (%)	10-40	5-80	3-10	-
ANIONIC CHARGE (%)	-	-	-	5-15
CATIONIC CHARGE (%)	-	-	-	5-50
RESIDUAL AM (PPM)	<500	<500	<500	<500
PH RANGE	5-14	2-14	3-10	1-14

APPLICATION

Anionic POLYACRYLAMIDE: anionic polyacrylamide is widely used in waste water treatment of chemical industry, municipal sewage treatment, such as coal washing, mineral processing, metallurgy, iron and steel industry and electronic industry. It is also used in oil industry to enhance oil recovery which is widely used. In addition, it can be used as paper additives and textile pulp agent.

We recommend our models of Chinafloc A3018,Chinafloc A2015,Chinafloc A2520,Chinafloc A3016,ChinaFLOC A2718.

Cationic POLYACRYLAMIDE: cationic polyacrylamide is very efficient in usage and has high dehydration rate. It is used for the waste water treatment in alcohol factory, monosodium glutamate factory, sugar factory, beverage factory, tanneries, dyeing and other fields. It has a better effect to be used together with inorganic coagulant in particular. It can be used as paper additives as well.

We recommend our models of Chinafloc C0510,Chinafloc C1312,Chinafloc C2012.Chinafloc C3012,Chinafloc C4008.Chinafloc C5008.

Nonionic POLYACRYLAMIDE: It is the most appropriate to use NPOLYACRYLAMIDE, when the sewage is acidic. It is also used as agents for the textile pulp, paper chemicals, water shutoff agent, and etc.Because of its non-ionic functional group, PH value and salts have a little influence on NPOLYACRYLAMIDE’s flocculation. In the neutral or alkaline conditions, the flocculation effect is not as good as APOLYACRYLAMIDE, but better than APOLYACRYLAMIDE in acidic conditions.

We recommend our models of Chinafloc N0510 and Chinafloc N0710,it can replace of Tianfloc N134 and N100 easily.

Amphoteric POLYACRYLAMIDE: It can be used in a wide range of PH value. It can also be used in ore leaching with strong acid or extract valuable metals from the acid catalyst with metals. Amphoteric ion is not the mixing of anionic and cationic. It is applied to all kinds of waste water treatment like oil contamination, organic sewage, inorganic sewage, complex sewage with frequently water quality changing and sludge dewatering. It is also used as paper additives, oilfield water shutoff agent, and etc.

Magnafloc 611 is substituted by Chinafloc A3016 in mining

Hyperfloc MG 655 used for polymetalic mine processing

anionic polyacrylamide for coal wahsing,screening,sedimentation,flotation and dewatering

Superfloc A120 and Superfloc N100 for mineral processing

What kind of floculant we use for gold, silver, copper, aluminun, iron, tin, coal, lead, zinc?

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