Polyaluminum chloride: the "all-round player" in the field of water treatment

What is polyaluminum chloride?

Polyaluminum chloride (PAC) is an inorganic macromolecular coagulant, with chemical fomula [Al₂(OH)ₙCl₆₋ₙ]ₘ. Through the bridging of hydroxide ions and the polymerization of polyvalent anions, inorganic polymer compounds with high molecular weight and high electric charge are formed. It has a high degree of electric neutralization and bridging effect on colloids and particles in water, and can strongly remove toxic substances and heavy metal ions, and has stable properties. It is often used as a new water purification material and coagulant, and is widely used in the purification treatment of drinking water, industrial wastewater and urban sewage.

Appearance feature:

Solid: white, yellow, brown, etc., divided into industrial grade and drinking water grade. Liquid: colorless, transparent and brown.

Production process:

Drum type: aluminum content is general, mostly used for sewage treatment.

Plate and frame type: high aluminum content, applicable to municipal sewage treatment and daily life.

Spray drying: high aluminum content, high dissolving speed, used for drinking water treatment.

What "super power" does polyaluminum chloride possess?

1.High efficient water purification ability

Rapid flocculation: polyaluminum chloride can form large and dense alum flowers in a short time, the settlement rate is fast, and the water purification effect is remarkable.

Widely used: both high turbidity water and low turbidity water, can play a good coagulation effect.

Environmental protection low toxicity: no corrosive to the pipeline equipment, heavy metal ion content in the treated water quality is low.

2.Wide range of applications

Municipal water supply, sewage, river water treatment: remove suspended matter, colloid, organic matter, improve water quality

Industrial wastewater treatment: suitable for printing and dyeing, paper making, metallurgy, electroplating and other industries, effectively remove heavy metals and organic matter.

Agricultural irrigation: Improve water quality and prevent water eutrophication.

Paper production: purification of pulp and recycling of wastewater during paper production.

Food and beverage industry: juice clarification and beverage purification.

Agriculture: soil improvement and irrigation water

Petrochemical field: used to remove impurities and moisture in oil products, improve the quality of oil.

how to use polyaluminum chloride?

1.Usage method

Dissolve solid products in 1:3 water, and then dilute 10-30 times before use. Dosing quantity according to the raw water turbidity adjustment, general every one thousand tons of water dosing 5-10 kg.

2.Precautions

The optimal pH value is 3.5-5.0, and the dosage should be adjusted according to the water quality. To avoid conventional toxic substances, stored in a dry, ventilated place.

Future market outlook of polyaluminum chloride

1.Demand growth

Environmental policy driven: With the improvement of environmental protection requirements, the demand for industrial wastewater treatment continues to grow. Emerging applications: areas such as agricultural irrigation, soil conditioning bring new growth point for polyaluminium chloride.

2.Supply challenges

Environmental pressure: pollutant emissions need to be reduced in the production process, and some small and medium-sized enterprises may face elimination. Raw material fluctuations: aluminum hydroxide, hydrochloric acid and so on raw material price fluctuations affect the stability of supply.

3.Technological innovation

New processes such as micro-electrolysis and catalytic oxidation will promote the development of the industry in a green and efficient direction.