The application of PAC(polyaluminum chloride) in different  areas

In the water treatment industry, the role of polyaluminum chloride is to make fine suspended particles and colloidal ions in water destabilize, gather, flocculate, coagulate and precipitate, to achieve the effect of purification.

What is the role of polyaluminium chloride:

Polyaluminum chloride is mainly composed of aluminum oxide, namely aluminum oxide, molecular formula: [Al2(OH) NCL6-N ·xH2O] M (M ≤10, N = 1-5) is a Keggin structure of high charge polymeric chain shape, which has a high degree of electrical neutralization and bridging effect on hydrocolloids and particles, and can strongly remove small toxic substances and heavy metal ions. Therefore, it plays a great role in sewage treatment, mining, paper making and other industries:

1. Mining industry

Polyaluminum chloride flocculant has a very good performance in the mining industry. It is used for ore washing and mineral separation. On the one hand, it separates water from gangue to facilitate water reuse, on the other hand, polyacrylamide dehydrates the sludge generated.

2. Paper industry:

In the paper industry, in addition to some uses in sewage and clean water treatment, polyaluminium chloride is mainly used as a precipitation agent and retention aid for rosin neutral sizing, filter aid, also used for barrier control and as a trap agent for anion magazine.

3, textile printing and dyeing industry:

Textile dyeing and printing industry has a large quantity of waste water produced, deep chromaticity, high content of organic pollutants, is one of the wastewater from industrial wastewater, through the role of polyaluminium chloride, alum flowers in the wastewater treatment process solid and big (note: large amount of polyaluminium chloride dosing of alum flowers floating), sedimentation speed, treatment effect is obvious; In addition, polyaluminum chloride is also used in cloth wrinkling function.

4, water treatment:

Polyaluminum chloride is widely used in sewage treatment industry, especially polyaluminum chloride and polyacrylamide have outstanding effect and effect in sewage flocculation and precipitation, used in daily life sewage and chemical wastewater, industrial sewage treatment field.

5. Oil exploitation:

Polyaluminum chloride is used as the main material for wastewater treatment in petroleum exploitation. It is used as oil flooding agent, shutoff regulator, drilling fluid regulator and fracturing fluid additive in petroleum exploitation.

6. Agriculture:

The surface layer of soil crust has the properties of high density, small pores and low saturated water conductivity, which can hinder soil water infiltration, increase surface runoff and hinder seed germination. The role of polyaluminum chloride is to improve soil water content, inhibit the formation of soil crust and increase water infiltration.

7. Daily Chemical Industry:

Food-grade polyaluminum chloride is a high-end product of water purification flocculant, which is used in daily chemical production to have more obvious effect on the flocculation and precipitation of wastewater. In addition, food-grade polyaluminum chloride is also used as raw material or additive in pharmaceutical, cosmetic and beauty industries.

8, the role of aquatic products:

Polyaluminium chloride is used in aquaculture to effectively remove organic matter from water. Too much organic matter in water, the first by physical and chemical methods (such as the use of polyaluminium chloride) precipitation will be a large number of organic matter in water, then add the oxidation mordecai agent, or the application of EM bacteria, photosynthetic bacteria, and new effects, to speed up the energy flow and material cycle of the pond, fish farmers shandong jiaodong confirmed when water, organic matter too much, The method of settling organic matter in water body is particularly critical, and the use of polyaluminum chloride should also be one of the effective options.

Action principle of polyaluminium chloride:

Polyaluminum chloride is a inorganic polymer water treatment agent with larger molecular weight and higher charge produced by the bridging action of hydroxide ions and the polymerization of polyvalent anions. Through the above seven functions of polyaluminum chloride, Engineer Yang summarized the principle of its action is

1. Strong electric neutralization of hydrocolloidal substances;

2. Excellent bridging adsorption of hydrolysates to suspended substances in water;

3, the selective adsorption of dissolved substances.