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Practical Operation of Polyferric Sulfate

The knowledge we need to know in the use of polymeric ferric sulfate is divided into several points in the practical application:

1. Coagulation stage: the process of injecting polyferric sulfate into the coagulation tank and rapidly coagulating raw water to form fine alum in a very short time. At this time, the water body becomes more turbid, requiring that the water flow can generate intense turbulence. In beaker experiment, 10-30S stirring should be performed quickly (250-300 rpm), generally not exceeding 2 minutes.

2. Flocculation stage: proper turbulence and sufficient residence time (10-15 min) are required for the growth and growth of alum. At later stage, a large amount of alum accumulates and sinks slowly, forming a clear surface layer. In beaker experiments, stir for about 6 minutes at 150 rpm, then suspend for 4 minutes at 60 rpm.

3. Settlement stage is flocculent settling process in settling pool, requiring slow water flow. In order to improve efficiency, inclined-pipe settling pool is generally used. Flocculants are separated by air floatation method. A large amount of coarse alum is deposited at the bottom of the pool by inclined pipe wall. The upper water is clarified water. The remaining alum with small particle size and small density decreases slowly while continuing to collide with each other and form large residual turbidity basically unchanged at the later stage. The beaker experiment was stirred for 5 minutes at 20-30 rpm and then silenced for 10 minutes to measure residual turbidity.

4. In order to improve the removal rate of the filter, the polyferric sulfate is mainly used to reasonably select the filter layer structure and filter aids.

Thank you for your attentionHenan aierfuke Chemical Co., Ltd：Focus on water treatment, only for the healthy world! Our company is committed toPolyaluminium chloride、Polyferric sulfateThe R & D, manufacturing and sales of series of water purification materials are willing to create success with our customers and friends.