Home > News > Content
Polyacrylamide The Key Factor
Nov 02, 2017

1, sludge is the inevitable product of urban sewage treatment, first of all we should understand the source of sludge, nature, composition and solid content. Polyacrylamide According to the main components of sludge, sludge can be divided into organic sludge and inorganic sludge. In general, cationic polyacrylamide is used to treat organic sludge, anionic polyacrylamide is used for inorganic sludge, Polyacrylamide it is not suitable to use cationic polyacrylamide when it is very strong, and it is not suitable to use anionic polyacrylamide when the acidity is strong, and the dosage of polyacrylamide is usually higher when solid content is high.

2, the size of the Floc: The Floc is too small will affect the speed of drainage, Polyacrylamide flocculation group too General Assembly to bind more water and reduce the mud biscuit degree. The size of the Floc can be adjusted by selecting the molecular weight of polyacrylamide.

3, the Ionic degree of polyacrylamide: for dewatering sludge, the use of different ionic degrees of flocculant by first doing small test screening, the best suitable polyacrylamide, Polyacrylamide so that can obtain the best flocculant effect, but also to add the minimum dose, save costs.

4, the strength of the Floc: Floc in the shear action should remain stable without breaking. Improving the molecular weight of polyacrylamide or selecting suitable molecular structure can help to improve the stability of the floc.

5, polyacrylamide and sludge mixing: polyacrylamide in the dehydration equipment at a certain location must be fully reacted with the sludge, the role. To this end, Polyacrylamide the viscosity of polyacrylamide solution must be appropriate, under the existing equipment conditions can be fully mixed with the sludge, the mixture of the two is the key factor of success. The viscosity of polyacrylamide solution is related to its molecular weight and preparation concentration.

6, the dissolution of polyacrylamide: good dissolution to give full play to the flocculation effect. It is sometimes necessary to increase the dissolution rate, Polyacrylamide and the concentration of polyacrylamide solution can be considered.

Pam products have three major formulations: aqueous colloid, powder and emulsion, each of the formulations have different ionic products, can be divided into non-ionic (npam), cationic (APAM) and anion (CPAM) Three categories, these polymers can be aggregates, can also be copolymers. At present, Pam in China's largest area of consumption is three oil production, followed by water treatment and paper,Polyacrylamide its consumption structure for the oil field mining accounted for 81%, water treatment accounted for 9%, papermaking accounted for 5%, mining accounted for 2%, the other accounted for 3%. The world's most widely used water treatment and papermaking, different countries and regions of acrylamide polymers consumption and consumption structure of different proportions. Pam application mainly includes petroleum industry, water treatment, papermaking industry, Polyacrylamide textile industry, printing and dyeing industry, pharmaceutical industry, agriculture, construction industry, metallurgical industry.