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Characteristics and Flocculation Effect of polyaluminum chloride

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  Polyaluminum chloride is a versatile inorganic polymer compound with a wide range of uses. It is mainly used as a flocculant in water treatment plants. Polyaluminum chloride is a polymer formed by the interaction of hydroxide ions and polyvalent anions. Large molecules and high charges. Its main properties are mainly colloidal solids, mostly colorless colloidal solids. Sometimes it becomes a transparent liquid when it dissolves, and sometimes it becomes black mucus when it contains other charges. Its solubility is average. It is easily soluble in water and also soluble in alcohol, but insoluble in absolute ethanol and glycerin. Different types of polyaluminum chloride have different dosages and coagulation effects. Therefore, a suitable flocculant must be used. In terms of morphology, it can be divided into solid and liquid. The solid is divided into brown, beige, golden and white according to different colors. The liquid can be colorless and transparent, slightly yellow, light y...

Introduction of Water Treatment Process in Water Supply Company

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1. The raw water enters the distribution well, where large and heavy suspended particles settle. The raw water is equally divided into two parts and enters the sedimentation tank through the pipeline connected with the sedimentation tank. There is an incoming turbidity detector in the water distribution well. 2. The distributed water passes through a tubular mixer before entering the sedimentation tank, where the raw water is added to the coagulant ( PAC solution , the main component AL2O3). After entering the flocculation tank, the raw water passes through 48 layers of grids, and the flow rate is further slowed down. The suspended solids and colloidal impurities contained in the raw water react with the coagulant to produce flocculent sedimentation, and part of the flocculation sediments in the flocculation tank. There is a buffer zone between the flocculation tank and the sedimentation area to stabilize the water flow and slowly enter the sedimentation area. The sedimentation area is...

Know More About Features of Polyaluminium Chloride

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In the field of water treatment engineering, the demand for polyaluminium chloride PAC coagulant in various countries is increasing rapidly, especially in water treatment, it has gradually replaced the traditional flocculant and has become the mainstream flocculant. A large number of application practices have proved that the use of polymerization chlorination rate to replace traditional iron and aluminum salt coagulants can significantly improve the purification efficiency of water plants, reduce treatment costs, and improve effluent water quality. Its main advantages are as follows 1. Excellent coagulation, turbidity, decolorization and humus removal effects and a wider range of pH. PAC not only has a strong coagulation and turbidity removal effect, but also has obvious decolorization and humus removal effects. To achieve the best flocculation under the same treatment conditions, the dosage of polyaluminum needed to be reduced by 2/3 compared with traditional aluminum salt. Under th...