A simple method for judging the quality of polyaluminum chloride

1. Firstly, determine it by the appearance of the product. Generally, the white spray-dried polyaluminum chloride is more expensive than the yellow spray-dried product. The higher the content of drum-dried polyaluminum chloride, the lighter the color.

2. Determine it by the insoluble matter in water. Mix the polyaluminum chloride product with distilled water, filter through filter paper to observe the amount of insoluble matter in the water. The higher the content of polyaluminum chloride, the less the insoluble matter; the lower the content, the more it is.

3. From the perspective of water treatment effect. To achieve the same water treatment effect, the dosage of high-content polyaluminum chloride needs to be smaller, and the effluent water quality is clearer with less impurities.