Purifying industrial water - contg heavy or alkaline earth metals, aluminium or cerium, by adding precipitants and filtering through turf moss

摘要

Al, Cu, Ce, Zn, Co, Ni, Fe, Cd, Mg, Cr, Mn, Ag, Hg, Sn and/or Pb contaminants are separated from water by adjusting the pH with a precipitating agent which gives a basic reaction after dissolution, esp. CaO, Na2CO3, NaOH or NH3 and amines, so that the contaminant metal ions react to form an insoluble oxide or hydroxide, which is separated from the soln. by allowing it to diffuse through turf moss. Industrial water purification.