Magnafloc 10,1011,110L,120L,155 of anionic polyacrylamide can be replacef by Chinafloc Anionic series
What are the application areas of polyacrylamide? Acrylamide precipitator is a water-soluble polymer, which can adsorb, bridge and charge neutralize colloids or suspended particles in water, destroy the stability of colloids or particles, and promote their flocculation to form larger flocs, so as to improve or accelerate the solid-liquid separation process.
The effects of polyacrylamide are:
1. Principle of flocculation: when PAM is used for flocculation, it is related to the surface properties of flocculated species, especially the kinetic potential, viscosity, turbidity and the PH value of the suspension. The kinetic potential of the particle surface is the reason for the agglomeration of particles by adding PAM with the opposite surface charge, which can reduce the kinetic potential and condense.
2, adsorption bridge: PAM molecular chain fixed on the surface of different particles, the formation of polymer bridge between the particles, so that the particles form aggregates and settlement.
3. Surface adsorption: various adsorption of polar group particles on PAM molecules.
4, enhancement: PAM molecular chain and dispersed phase through a variety of mechanical, physical, chemical and other effects, will be involved in the dispersed phase together, the formation of a network, so as to enhance the effect.
The main application areas of polyacrylamide are:
1, used for industrial wastewater treatment, especially for suspended particles, coarse, high concentration, particles with positive charge, water PH value is neutral or alkaline sewage such as steel mill wastewater, electroplating plant wastewater, metallurgical wastewater, coal washing wastewater and other sewage treatment effect is very good.
2. Drinking water treatment. Many Chinese water plants from the rivers sediment and minerals will be high content, more turbidity, although after precipitation treatment, but still cannot meet the requirements, need to add flocculant force, to make the water quality clear, many water plants using inorganic flocculant, but the amount is one in fifty of inorganic flocculant, but the effect is several times to dozens of times of inorganic flocculant, Sometimes it works better with polyaluminum chloride.
3. Used for the recovery of lost starch and wine tank in amylum factory and liquor factory. At present, the starch content in the wastewater discharged by many amylating factories is very high, which affects the environment and wastes resources
PAM, the starch precipitate, precipitate by the filter press filter cake can be used as feed, a large number of wine tank factory is to use this process, Heilongjiang one of Asia's largest wine factory is to use polyacrylamide as flocculant, the wine tank recovery, and has achieved great economic benefits.
4, used as oilfield profile control water plugging agent, three times using oil displacement agent.
5, used as a papermaking assistant, PAM is widely used in papermaking, can be used as long fiber papermaking dispersant, wet and dry enhancer, retention aid, filter aid and flocculant of papermaking wastewater.