Polyaluminum chloride is the safest and most efficient way to use Polyaluminum chloride is as a water purifying agent, which is well known and used. It is also well known that this product is used for sewage treatment to reduce the hazard , But if the use of improper use of the human body or other organisms will cause some harm, so many users will question the use of this product, because the use of this product itself is to reduce the harm, but why when used It will cause harm, so here is recommended to introduce the safest to use, the correct use of methods not only does not produce harm, but also to bring convenience to our life, then we will introduce it in detail the use of methods : First of all, according to the different conditions of raw water to make judgments, before using a small experiment can be done in order to obtain the best dose ratio. In order to facilitate the calculation, small test solution configuration weight by volume ratio (W / V), usually in two to five percent as well. If with 3% solution: said PAC3g, Sheng wash into a 200ml graduated cylinder, and then add about 50ml, to be dissolved and diluted with water to 100ml scale, shake well. At the same time, we should also take the idea that the production should be mixed by dissolving in solid: water = 1: 5 or so and then diluted with water to 2-3% (w / v). As low as 1% solution easily hydrolyzed, will reduce the use of effect, remember that the concentration is too high can easily lead to waste. Also remember that this product is suitable for all water treatment facilities, including all large-scale water treatment equipment. Dosing by the best dosage to vote for the best. And always pay attention to observe and adjust in the operation, if there is less settling pond alum, Yu turbidity and other large, indicating that the dosage is too small, you need to increase the amount of medicine, if there is precipitated alum large and turn over, Yuzhu High case, indicating that the dosage is too large, should be the next is the dosing process to reduce the dosage, the above situation I made after the company concluded the test, I hope everyone at the same time use varies from place to place, because of From time to time to make the appropriate changes!