Description
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Zibo Dingqi Chemicals Co., Ltd. is one of the most experienced manufacturers and suppliers of drinking water treatment aluminum sulfate in China. Welcome to wholesale high quality drinking water treatment aluminum sulfate made in China here from our factory. For price consultation, contact us.
Drinking water treatment content
- Dosage: Typically ranges from 5 to 50 mg/L, depending on water quality and treatment requirements.
- Residual Level: After treatment, the residual aluminum concentration in water should be below 0.2 mg/L to comply with drinking water standards.
Applications of Aluminum Sulfate
- Coagulation: Aluminum sulfate dissolves in water to form aluminum hydroxide colloids, which adsorb suspended solids and colloidal particles, forming larger flocs that can be easily settled or filtered.
- Turbidity Removal: Effectively removes turbidity from water, improving water clarity.
- Color Removal: Eliminates organic colorants from water, enhancing its color quality.
- Bacteria Reduction: Indirectly reduces bacteria and viruses by removing suspended solids.
Precautions
- pH Control: The optimal pH range is 3.0-4.0. Deviating from this range may affect coagulation efficiency.
- Aluminum Residue: Excessive use may lead to exceeded aluminum residues, so dosage must be strictly controlled.
- Corrosiveness: Aluminum sulfate is corrosive, requiring protective measures during storage and use.
Relevant Standards
- China: GB 5749-2006 "Standards for Drinking Water Quality" stipulates that the residual aluminum concentration should not exceed 0.2 mg/L.
- International: The WHO "Guidelines for Drinking-water Quality" recommends a residual aluminum concentration of ≤ 0.2 mg/L.
Summary
- Aluminum sulfate is used as a coagulant in drinking water treatment to effectively remove suspended solids and colloidal particles. However, its dosage and pH must be carefully controlled to ensure that aluminum residues comply with standards.
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