How to buy high efficiency polyaluminium chloride?
2022-05-20
Poly Aluminum Chloride is a commonly used water purifier. Due to the low production technology threshold in the market, the product quality varies, how to buy high efficiency PAC?First we should understand our needs and usage, and then choose according to the product characteristics. We can buy high efficiency and suitable water purifying agent.
The appearance can be divided into brown, khaki, yellow, light yellow and white. Brown polyaluminium chloride is industrial grade, khaki colored polyaluminium chloride is industrial and drinking water grade, yellow and white products are food grade. Prices have risen again. It should be noted that the color is only seen from the overall perspective, not from the packaging perspective.
Alkalinity is the basic component that causes changes in the morphology of polyaluminium chloride, which is the OH radical ion. The measurement indicator of Oh ion in polyaluminium chloride is alkalinity, which is usually defined as the percentage of Oh and Al in polyaluminium chloride, usually 40-90%. Low alkalinity results in poor coagulation. It should be noted that the alkalinity is controlled at 50% for beverages and 80% for industrial polyaluminium chloride.
The water insoluble substance in PAC is also called solubility. The solubility of the product is generally greater than 99%, which means that the water insoluble matter is about 1%, and the solubility of the drinking grade is greater than 99.8%, which means that the insoluble matter is less than 0.2%. The method has four production methods with different content of polyaluminium chloride. The products are common industrial grade, plate and frame filter press, industrial grade plate and frame filter press, drinking water grade and spray drying type.
Is there a certain difference between different colors of polyaluminium chloride?
White polyaluminium chloride:
White polyaluminium chloride is one of the commonly used water purification materials. It specializes in food, drinking water, urban water supply, precision manufacturing, water purification, paper industry, medicine, sugar, cosmetic additives, daily chemical industry, etc. It is widely used. It has high purity and high price.
Pale yellow polyaluminium chloride:
Second only to white polyaluminium chloride, the medium and high series products are mainly used for drinking water treatment, in which the heavy metal content is strictly limited. In particular, our drinking water grade polyaluminium chloride products have clear water quality, no precipitation, Al2O3 content of about 30 (±0.5), fine powder, uniform particles, good flocculation effect, high purification efficiency and stability, low dosage and low cost, which is a special water treatment flocculant for large water plants with long-term cooperation.
Golden yellow polyaluminium chloride:
Polyaluminium chloride is currently widely used in the market. It is an efficient flocculant for sewage treatment with good flocculation effect. Therefore, it is a good choice for industrial water supply, industrial wastewater, industrial water recycling and municipal wastewater treatment.
Brown, brown, coffee colored polyaluminium chloride:
It is a water treatment product produced according to the special requirements of individual customers for water treatment. The iron content is higher than other polyaluminium chloride series products, so the color is darker than golden yellow. It is suitable for low temperature, low turbidity and high algae sewage treatment. It is mainly used for drinking water, urban water supply, industrial water purification, etc.
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