The Decolorization Effect of Basic Aluminum Chloride

Basic aluminum chloride (PAC or BAC) is commonly used as a flocculant in water treatment, and its decolorization principle is mainly to remove pigment molecules in water through adsorption and flocculation. Its unique molecular structure and large specific surface area enable it to effectively adsorb pigment molecules in water and aggregate these pigment molecules into larger particles through flocculation, thus facilitating subsequent precipitation and filtration treatment. Next, follow the basic aluminum chloride manufacturers to understand.

Decolorization effect of basic aluminum chloride:

Efficient decolorization: basic aluminum chloride shows efficient decolorization ability in the treatment of printing and dyeing wastewater and other high chroma wastewater. When the dosage is appropriate and pH value is controlled within the appropriate range, the decolorization rate can reach more than 90%.

Strong adaptability: basic aluminum chloride is not only suitable for printing and dyeing wastewater, but also can be used to treat other wastewater containing pigments, such as papermaking wastewater, pharmaceutical wastewater, etc. Its wide applicability enables it to play a good decolorization effect in wastewater treatment in different industries.

Small impact on water quality: In the decolorization process, the basic aluminum chloride has a small impact on water quality, and will not introduce new pollutants or change the pH value of the water quality and other physical and chemical properties.

Factors affecting the decolorization effect of basic aluminum chloride:

Dosage: The dosage of basic aluminum chloride directly affects the decolorization effect. If the dosage is too small, the pigment molecules in the water may not be completely removed. Excessive dosage may increase the treatment cost and the risk of secondary pollution of water quality. Therefore, it is necessary to determine the appropriate dosage according to the actual situation of wastewater and decolorization requirements.

pH value: The pH value of the wastewater also has a certain impact on the decolorization effect of basic aluminum chloride. In general, in the appropriate pH range (such as 5.4~6.6), the decolorization effect of basic aluminum chloride is the best. When the pH value is too high or too low, it may affect its adsorption and flocculation, thereby reducing the decolorization effect.

Water temperature: Water temperature is also one of the important factors affecting the decolorization effect of basic aluminum chloride. When the water temperature is low (such as less than 5 ° C), the flocculation produced is fine and loose, contains more water, and the settlement is slow, so the decolorization effect is poor. The optimal water temperature is usually 25~30℃.

In summary, basic aluminum chloride has excellent performance in decolorization, and has the advantages of high efficiency, strong adaptability, and little influence on water quality. In practical applications, it is necessary to determine the appropriate dosage, pH value and water temperature conditions according to the actual situation and decolorization requirements of wastewater to obtain the best decolorization effect. If you encounter any problems in the process of use, please feel free to consult the basic aluminum chloride manufacturer, we will arrange professional technicians and you to contact, to help you solve the problem, to provide you with free testing, selection, sample services. Sincerely look forward to cooperating with you!