... waste water, fluoride-containing wastewater, coal washing waste water containing oil wastewater treatment, paper making, metallurgy, mine wastewater, wastewater from ... situation.2, when using solid, and water dissolved with the distribution of 10-25% solution and diluted to the required concentration ... 027.040-90----1.53.5-5.0 The biggest manufacturer of Polyaluminium Chloride for water purification