Anionic Polyacrylamide for steelmaking wastewater(praestol 650BC)

 

Steel mills with polyacrylamide its main principle is added to steelmaking wastewater, by the electrical neutralization and polymer itself has adsorption bridging effect, can make suspended particles rapid agglutination precipitation, and achieve separation, clarification effect, is a particularly suitable for steelmaking wastewater treatment agents.

 

Steelmaking wastewater treatment special polyacrylamide is my company according to the characteristics of steelmaking wastewater, developed special model products, high quality and low price, wastewater treatment settlement effect is good, improve steelmaking efficiency, increase the recycling rate of water or standard discharge. Steel mills with polyacrylamide in wastewater coagulation treatment with anionic polyacrylamide, converter dust removal wastewater treatment to use cationic polyacrylamide.

【 Characteristics of special polyacrylamide products for steelmaking wastewater treatment 】 :

 

1, water solubility is good, can also be completely dissolved in cold water.

 

2, add a small amount, can be a great flocculation effect. Generally, only 0.01~10ppm (0.01~10g/m3) is needed to give full play to the effect.

 

3, at the same time and inorganic flocculant (polymeric ferric sulfate, polymeric aluminum chloride, iron salt, etc.) use, can show a greater effect.

 

【 main role of special polyacrylamide for steelmaking wastewater treatment 】 :

 

1. Flocculation:

 

PAM used for flocculation, and flocculated species surface properties, especially when the potential, viscosity, turbidity and suspension PH value, the particle surface potential, is the cause of particle resistance to polymerization adding surface charge opposite PAM, can reduce the potential and condensation.

 

2, adsorption bridge:

 

PAM molecular chain is 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 molecular chain.

 

4. Enhanced effect:

 

PAM molecular chain and dispersed phase through a variety of mechanical, physical, chemical and other actions, the dispersed phase implicated together, forming a network.

 

[Method of use of special polyacrylamide for steelmaking wastewater treatment] :

 

Gravity infusion and pressure infusion are used for drug infusion. Regardless of which infusion method, liquid lifting equipment should be set up from the solution pool to the solution pool to the liquid infusion point. The commonly used liquid lifting equipment is metering pump and water injector.

 

1. Gravity loading

 

The use of gravity will be added to the agent in the water pump suction pipe or suction well suction bell mouth, the use of water pump impeller mixing.

 

2, pressure add

 

Use water pump or water injector to add the agent to the original water pipe, suitable for adding the agent to the pressure water pipe, or need to add to the higher elevation, far from the water purification structure.

 

3, water pump add

 

Pump feeding is in the solution pool to lift the liquid into the pressure pipe, there is a direct use of metering pump and the use of acid resistance to enhance the role.

 

Steel mill wastewater by polyacrylamide before use generally need to be made into standby, 0.1% ~ 0.5% of dilute solution confecting good solution not to store too long time, the concentration range of solution needs to be further diluted before use into solution of 0.01 ~ 0.05, reason is that can better flocculating agent in the dispersion in the suspension system, The dosage can be reduced, and better flocculation effect can be achieved.

 

[Polyacrylamide packaging and storage for steelmaking wastewater treatment] :

 

Steel mill waste water with polyacrylamide using 25Kg plastic lining woven bag or paper plastic composite bag packaging, can also be packed according to user requirements.

 

Stacking layers shall not exceed 20 layers, and the effective storage life is 2 years.

 

Store in cool, ventilated and dry place, pay attention to prevent heat, moisture, prevent packaging damage, long-term exposure will absorb moisture agglomerate.