... unchanged.Areas of application of poly-aluminium chloride:1, water: domestic water, industrial water;2, urban wastewater treatment;3, sewage, sludge, ... the influence of PH value and temperature of water body small, introducing water water purification up to the national standard, the treated ... by weight (w/w), with 2~5% distribution as well. With 3% solution: solid 3G of poly aluminum chloride, ...