When selecting polyaluminum chloride (PAC), it is necessary to pay attention to the following key indicators to ensure that the selected product meets the requirements of the application and local regulatory standards:
Aluminum hydroxide content (Al2O3 content): PAC products are usually represented by the aluminum hydroxide (Al2O3) content, which is an important indicator for measuring product purity and activity. High alumina content usually indicates a higher purity of the product, which can provide better water purification effect.
Basicity: The basicity of PAC refers to its ability to contain hydroxyl ions (OH -), which is the alkalinity of the product. Different levels of PAC are suitable for different water quality conditions, usually between 5% and 90%. Choosing an appropriate level of PAC can better adapt to water quality.
Iron content (Fe): High iron content PAC may cause discoloration of water quality, so it is usually necessary to choose products with lower iron content, especially for drinking water treatment.
Insolubles content refers to the impurities and residual substances in PAC that cannot be dissolved in water. The water insoluble content of the product should be low to ensure that no additional pollutants are introduced during use.
Particle Size: The particle size of PAC products affects their dissolution rate and mixing uniformity in water. Choosing products with appropriate particle size can help improve dissolution rate and water purification effect.
Solubility: The solubility of PAC refers to its degree of solubility in water. Products with high solubility are usually more easily soluble in water, providing better water purification effects.
Production process and quality certification: Consider selecting products with good reputation and meeting quality standards from the manufacturer's furniture. The product should comply with relevant national or regional standards and come from trusted manufacturers.
When selecting the appropriate PAC product, it is best to consult a professional water treatment engineer or water quality expert to make the selection based on specific water quality conditions and treatment needs, to ensure that the selected product can achieve the best results in a specific environment.
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