Aluminum sulfate

Aluminum sulfate

Aluminum sulfate is an inorganic compound that is a white crystalline powder that is easily soluble in water and insoluble in alcohols. The aqueous solution is acidic, and the concentration should not be too low, usually 5-10%. When used as a water treatment agent, the prepared aqueous solution should not be stored for a long time to avoid hydrolysis and reduce the coagulation effect.

Aluminum sulfate

Product Description

       Aluminum sulfate is an inorganic compound that is a white crystalline powder that is easily soluble in water and insoluble in alcohols. The aqueous solution is acidic, and the concentration should not be too low, usually 5-10%. When used as a water treatment agent, the prepared aqueous solution should not be stored for a long time to avoid hydrolysis and reduce the coagulation effect. It is mainly used for the purification treatment of drinking water, industrial water, and wastewater, especially for water with low temperature, low turbidity, and high pH value. It can also remove color, algae, and other substances from the water. In addition, it is also a good defluoriner and widely used in papermaking, oil clarifying agents, concrete waterproofing agents, etc


Working Principle

       The working principle of aluminum sulfate is mainly reflected in the following aspects:

       1. Agglomeration effect: The aluminum hydroxide colloidal particles generated by hydrolysis carry a positive charge, while colloidal impurities in natural water generally carry a negative charge. According to the principle of opposite polarity charge attraction, positively charged aluminum hydroxide colloidal particles will attract negatively charged colloidal impurities, causing the colloidal impurity particles to become unstable. At the same time, aluminum hydroxide colloidal particles will also adsorb surrounding colloidal impurities on their surfaces through adsorption, gradually increasing the size of the particles and forming flocs.

       2. Sedimentation effect: As the flocs continue to increase, their gravity exceeds the buoyancy of water, and the flocs will gradually precipitate to the bottom of the water, thereby achieving separation from the water, removing suspended impurities in the water, and reducing the turbidity of the water.

Specification

Project

Index

Alumina(AL2O3)

≥%17.0

Water insoluble substances

≤% 0.5

Heavy metal(Using Pb)

%0.002

Basicity

8.0-12.0

Arsenic(As)

%0.0005

Product Features

       1. Good flocculation: Aluminum sulfate can form aluminum hydroxide colloids in water treatment, which have strong adsorption capacity and can cause suspended particles in water to agglomerate into larger flocs, thereby accelerating precipitation and achieving the goal of purifying water quality.

       2. Widely applicable: It can be used to treat various industrial wastewater and domestic sewage, and has good effects on removing turbidity, chromaticity, heavy metal ions, etc. from water. At the same time, it is also used in multiple fields such as papermaking, textiles, printing and dyeing, and chemical engineering.

       3. Low cost: Compared to some other coagulants, aluminum sulfate is relatively inexpensive and has mature production processes and a wide range of sources, making it cost-effective for large-scale industrial applications.

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