The condensation process of poly aluminum chloride

Poly aluminum chloride is an inorganic polymer coagulant, also referred to as poly-aluminum, the English abbreviation for PAC, mainly used for water treatment. Following is a brief introduction poly aluminum chloride water treatment process, which is the aggregation of poly aluminum chloride process.

Condensed phase. This stage is a poly aluminum chloride solution and the raw water into the coagulation tank rapid coagulation in a very short time to form a fine process of alum, then becomes more turbid water, it requires water to produce intense turbulence.

Flocculation stage. This stage is the process of alum grow thicker, requiring an appropriate degree of turbulence and sufficient residence time (10-15min), to the later observed sinking slowly gathered a large number of alum to form a clear surface layer.

Subsidence. Sedimentation stage is carried out in the settlement pool floc settlement process, requiring slow water flow, to improve the general efficiency of the use of ramps (plate) settlement tank (preferably separated floc flotation method), a lot of thick alum perianth inclined tube (board) deposited on the bottom wall of the barrier, the upper water as clarified water, the rest of the small particle size, density alum side down slowly, while continuing to collide knot large cloud-to-late I basically unchanged.

Enhanced filtration stage. Main filter layer structure and the rational use of filter aid to improve the filter's removal, which is an important measure to improve water quality.

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