how to use a denaturing anionic polyacrylamide gel from Nepal
Because there is less aluminium content there is less aluminium in the backwash water. Furthermore, aluminium residuals are minimised. The lower aluminium content products have a higher basicity, so the best advice that PWTAG can give is to use
efficiency of Alum and Poly Aluminium chloride popularly known as PAC in purification of water. Though PAC is widely used in other countries its use in India for water purification is not appreciable. The optimum dosage level of the chemicals is