Studies on the Solid Waste : Filtration Characteristics of Waste Mud

The equation of filtration and particle size distribution of waste mud produced by brine purification process which was indispensable in Cl₂-caustic electrolysis plant were determined, and the filtration characteristics were also discussed, The equation of filtration on waste mud having the composition of magnesium hydroxide and calcium carbonate roughly corresponded to the concentrated brine prepared through sea water conversion process was experimentally given as follows at 60℃: (V/A)^1.42=0.57・ΔP^0.30・θwhere V: volume of filtrate A: filtration area ΔP: filtration pressure θ: time From above equation, this waste mud was thought heterogeneous and much compressible precipitates, and difficult in the operation of filtration and washing, too. Moreover, it was found that the filtration characteristics were mainly depended on the properties and particle size distribution of magnesium hydroxide precipitate