Before the use of polyacrylamide, must be fully dissolved, so that its chain is fully extended, usually dilute concentration of about 0.1%, the dissolution operation to be carried out in plastic, ceramic or concrete containers.

 Poly aluminium chloride (PAC) and polyacrylamide (PAM) products solve many sewage treatment problems in the water treatment industry. Because we use these high-quality flocculants, many industrial wastewater can be effectively clarified. As two important branches of flocculant products, the use of inorganic and organic products in combination hasn’t been a new thing. Printing and dyeing wastewater is the wastewater discharged from dyeing and dyeing, wool dyeing and finishing and silk factories, which mainly process cotton, hemp, chemical fibers and their blended products and silk. Different fiber types and processing technology, printing and dyeing wastewater water and water quality is also different. Printing and dyeing wastewater with large amount of water, high content of organic pollutants, alkaline, water quality changes and other characteristics, is one of the difficult to treat industrial wastewater, wastewater containing dyes, slurry, additives, oil, acid and alkali, fiber impurities, sand substances, inorganic salts. ​The treatment of printing and dyeing wastewater is also based on the flocculation mechanism, that is, through the Flocculation Characteristics of polyacrylamide and polyaluminium chloride, the solid in water is destabilized by compressing the double layer, adsorbing the neutralization, adsorbing bridging, forming flocs, then precipitating and separating, so as to achieve the purpose...

The “three wastes” produced in coal washing operation mainly refer to coal slime, coal gangue and coal washing wastewater (coal slime water), among which coal washing wastewater is the most serious harm to the environment and the most difficult to dispose. However, due to the huge water consumption of coal washing and the coal slime water generated after coal washing contains a variety of pollution substances, if the effective scientific disposal can not be directly discharged, it will cause a large amount of water waste, but also pollute the surface water and groundwater. In addition, when the coal washing wastewater is discharged into the natural water body, the suspended particles contained in it will make the natural water body turbid, significantly reduce the transmittivity, inhibit the photosynthesis of algae and other aquatic plants in the water body, slow down their growth rate, and then lead to the decrease of the oxygen concentration in the water body, weaken the self-purification ability of the water body, and lead to the death of a large number of aquatic organisms in the long run. Have a serious negative impact on the environment. PAM is a polyacrylamide used in coal washing wastewater and coal slime...

Usually, anionic polyacrylamide water purifier is used to treat sand washing wastewater. The treatment of sand washing wastewater is actually the separation of mud and water. The water obtained after separation is recycled and reused in the sand washing. Anions are commonly used to separate mud by flocculating sedimentation.

  Mineral processing wastewater is mainly from the dust removal water in the crushing process,ore washing wastewater, cooling water and so on. Mineral processing wastewater is characterized by large amount of water, high content of suspended solids and many kinds of harmful substances. The harmful substances are heavy metal ions and mineral processing agents. Heavy metal ions include copper, zinc, lead, nickel, barium, cadmium, arsenic and rare elements. The direct discharge of such waste water without treatment will have a damaging impact on the surrounding and downstream rivers, soil, farmland, wetlands and other areas, and ultimately endanger human health. Therefore, effective treatment and recycling of mineral processing wastewater is very important. Concentrator special polyacrylamide series products are water-soluble linear polymer synthesized with high degree of polymerization. It is completely soluble in water and can dissolve quickly due to its microscopic form. Different types of polypropylene have different active groups, can condense different suspended particles, easy filtration and separation. The series of products are almost insoluble in any organic solvent, but are heavily soluble in water. It is widely used in many industries in the fields of flocculation, viscosity, bonding, scale inhibition, stable colloid, drag reduction, film formation, gel, biological materials...

 Circuit board is an important part of electronic components, but the waste water generated in the production process of circuit board contains a lot of pollutants, including copper, chromium, nickel, zinc, acid base and so on. If the circuit board waste water is not treated effectively, it will cause serious environmental pollution. When natural water is polluted by acids, alkalis and heavy metals, the water quality will deteriorate, the microbial activities will be inhibited or stopped, the self-purification capacity of water will be reduced, and the crops will be harmed. Heavy metal ions are not degraded by microorganisms. They can be absorbed and accumulated in living organisms, causing great harm to the human body and other organisms. Therefore, it must be harmless treatment, in order to meet the corresponding emission standards. As a water treatment flocculant, polyacrylamide also plays an important role in circuit board wastewater. Circuit board complexing wastewater is mainly from acid/alkali etching production line and PTH production line. This type of wastewater typically has a pH of between 4 and 9. Wastewater not only contains complexing agents (the main complexing agent is ammonia < 50mg/L, formaldehyde, EDTA, etc.), and contains a large number of metal ions...

In the late period of petroleum exploration and development, drilling waste liquid is a special industrial waste water produced in the process of drilling operations, containing oil, heavy metal salt, refractory organic matter, sediment, bacteria and other toxic and harmful substances, with complexity, change, dispersion and other characteristics, it is black brown opaque colloid state, with strong pungent smell and putrid smell.

The role of polyacrylamide precipitator in pile shield mud is adsorption, bridging, net trapping and electric neutralization, the role of polyaluminum chloride is to produce strong electric neutralization reaction to colloids in water, adsorption bridging, etc. Some difficult mud even need to add lime calcium oxide for coagulation or dilution treatment.

Anionic polyacrylamide is used in mining wastewater. Polyacrylamide is an organic polymer flocculant. It is widely used in the field of sewage disposal.

Polyacrylamide is divided into four types: anionic, cationic, nonionic and zwitterionic. The parameter index in each polyacrylamide is also different, so its action basis and effect will be different. The charges in wastewater from different industries are also different, and different types of polyacrylamide are required to treat the effect. This is also the main reason why polyacrylamide needs to be selected.