PAC is always using the chemical composition and chemical properties of the point, accidentally caused a chemical reaction, and other chemical products should avoid contact and cause a chemical reaction caused by the failure of polyaluminium chloride. Here we show manufacturers for the polyaluminium chloride operation notice: 1. According to the different situation of the raw water, do first test to obtain the optimum dose before use. For the convenience of calculation, test solution configuration according to weight ratio (W/W), generally 2 to 5% for good. 2. According to the production of poly aluminum chloride solid: water =1:9 to 1:15 (the weight ratio of liquid products by 1:2 to 1:5) mixed dissolved. The alumina content of less than 1% of the solution is easy to hydrolysis, will reduce the use of effects, concentration is too high is not easy to add uniform. 3. The **** was obtained by the optimum dosage of adding, and observe the adjustment in operation. See sedimentation tank alum is less, the residual turbidity, the dosage is too small; see sedimentation tank alum and turned on, Yu Zhuogao, the dosage is too large, should be adjusted.
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