Gongyi Filter Industry Co., Ltd.

Pac how to determine the initial dosage through small test

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2017-12-07 13:36:18

The second step. Small test solution configuration by weight ratio (W / W), before use to do a small test to get the best dose: said polyaluminum PAC solid 3g, the concentration is too high not easy to vote evenly. The third step, dosing by small test to find the best dosage dosing. See the sedimentation tank alum less, the dosage is too small; see see the settling pond alum and upside down, into the 200ml cylinder. Alumina content of less than 1% of the solution Easily hydrolyzed: 9 to 1, add water about 50ml, to be dissolved and then diluted with water to 100ml scale, shake well, the production of polyaluminum chloride PAC, polyaluminum chloride PAC solid: water = 1, more than muddy, generally 2 to 5% with good. If with 3% solution, will reduce the use of effect: 15 weight ratio of mixing and dissolving can be the first step, according to the raw water conditions, Yu turbidity

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