Polyaluminum chloride test a small proportion of polluting water polyaluminum chloride treatment can drink? Polyaluminum chloride use matters needing attention and the amount of polyaluminum chloride: 1, according to different conditions of water, before use can be a small try to get The best dose. For ease of calculation, small test solution configuration by weight ratio, generally 2 to 5% with good. If equipped with 3% solution: said polyaluminum chloride solid 3g, into a clean 200ml measuring cylinder, add about 50ml of water, to be dissolved and diluted with water to 100ml scale, shake well. 2, the production of aluminum chloride solid by solid: water = 1: 9 to 1:15 by weight (liquid products using 1: 2 to 1: 5) can be mixed and dissolved. Alumina content of less than 1% of the solution is easy to hydrolysis, will reduce the use of effect, the concentration is too high not easy to vote evenly. 3, dosing by small test to get the best dosage dosing, and pay attention to observe and adjust in operation. See the settling pond alum less, Yuzhu large, the dosage is too small; see see the settling pond alum and up, Yuzhuo high, the dosage is too large, should be properly adjusted. Due to the different nature of raw water, should be based on different circumstances, on-site commissioning or beaker test, to obtain the best conditions for use and the best dosage to achieve the best treatment effect. 1, prior to use, the PAC will be put in a certain concentration (10-30%) into the alum pool, tap into the mixing water to fully hydrolyze, let stand until a reddish brown liquid, and then diluted with water to the desired concentration Add coagulation. Water plants can also be dubbed 2-5% direct investment, industrial wastewater treatment directly dubbed 5-10% dosing. 2, dosage to determine, according to the nature of the raw water through the production commissioning or beaker experiment as alum to form the appropriate amount, the waterworks can use the original amount of other drugs as a reference, under the same conditions the product with solid polychlorinated The amount of aluminum is roughly the same amount of solid aluminum sulfate 1 / 3-1 / 4. If the original is a liquid product, according to the corresponding drug concentration calculation discretion. Approximately by weight ratio of 1: 3. 3, when used, the above prepared good liquid medicine, pumped into the metering tank, dosing liquid by measuring and coagulation of raw water. 4, under normal circumstances the date of the day of preparation, dispensing need tap water, a slight precipitate is a normal phenomenon.