Polyaluminum chloride coagulant matters needing attention Poly aluminum chloride is an inorganic polymer coagulant. Poly aluminum chloride, which many people call poly aluminum, is more commonly known as water purifiers. Polyaluminum chloride is visually classified into a golden, khaki, brown, red granulated, flaky powdery solid (26% light yellow, 28% reddish brown, 30% golden yellow). Polyaluminum chloride is soluble in water and has strong bridging adsorption. During the hydrolysis process, AL2 (OH) 3 (OH) 3 is finally formed due to physical changes such as electrochemistry, cohesion, adsorption and precipitation, Purification purposes. Polyaluminum chloride is not toxic in nature, but also pay attention to polyaluminum chloride which contains aluminum ions harmful to human body, excessive intake will lead to calcium deficiency, causing damage to the brain, accumulating in the liver, spleen, kidney and other parts of the body Digestion and absorption function (therefore in the operation of workers dosing to pay attention to prevention). Polyaluminum chloride in the use of the advantages: rapid formation of flocs, rapid settling velocity than aluminum sulfate and other traditional products processing capacity, consumption of water is lower than the alkalinity of a variety of inorganic flocculants, which can be cast or less alkali agent , Adapted to the source water PH5.0-9.0 range can be agglomerated, corrosive small, good operating conditions, solubility better than aluminum sulfate, salt water treatment less increase, is conducive to ion exchange treatment and high purity water, the source water The temperature adaptability is superior to inorganic flocculants such as aluminum sulfate.