Aluminium Sulfate Water Treatment

Aluminum sulfate water treatment is an important environmental protection work, and various pollutants in water treatment pose a serious threat to the environment and human health. Aluminum sulfate is a commonly used water treatment agent with excellent flocculation and sedimentation performance, which can effectively remove suspended solids and chromaticity in wastewater.

Aluminum sulfate, with the chemical formula Al2 (SO4) 3, is an inorganic compound commonly found in the form of white crystals. It has good water solubility and stability, and can quickly dissolve in water to form aluminum ions and sulfate ions. In the treatment of aluminum sulfate water, the main function of aluminum sulfate is to aggregate suspended solids and chromatic substances in wastewater into larger particles through flocculation and sedimentation, thereby facilitating subsequent filtration and sedimentation treatment.

1. Adjusting pH value: The pH value of wastewater has a certain impact on the flocculation effect of aluminum sulfate. Generally speaking, when the pH value is between 6.0 and 7.0, the flocculation effect of aluminum sulfate is better. Therefore, before using aluminum sulfate, it is necessary to control the pH value of wastewater by adding acid-base regulators.

2. Aluminium sulfate water treatment feeding: According to the actual situation, dissolve an appropriate amount of aluminum sulfate in water to form a certain concentration of aluminum sulfate solution. Then evenly add the solution to the wastewater to be treated, usually by stirring or spraying.

3. Mixing and sedimentation: In the process of mixing aluminum sulfate with sewage, aluminum ions in aluminum sulfate react chemically with suspended solids and chromatic substances in sewage to form flocculents. As time goes by, the flocs gradually increase and settle to the bottom of the sewage.

4. Filtration and sedimentation: After a certain period of sedimentation, the flocculants in the sewage will gradually settle to the bottom to form sludge. Then, sludge can be separated from clean water through filtration or centrifugation to achieve the goal of sewage purification..

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