... 003Cadmium (Cd)%≤0.0006Product purpose : water purification, industrial water purification, water supply special water treatment, such as iron, fluoride ... sizing, precision manufacturing, leather, pharmaceuticals, petroleum oil-water separator, oil demulsification, refinery wastewater treatment.Use : The ... original drug dosage 4-6PPM, other water sources, Water dosage depending on their alum actual ...