Transcription of Sludge Volume - Weight Relationships - University of Guelph
1 1 of 2 Sludge Volume - Weight RelationshipsThe Volume of Sludge depends on two items:#water content#solids contentFurthermore, the solid content is a function of fixed and volatile soils. Therefore, the specificgravity of all the solid matter is described by:whereMs= mass of solids, kgSs= overall specific gravity of solidsDw= density of water, kg/m3Mf= mass of fixed solids, kgSf= specific gravity of fixed solidsMv= mass of volatile solidsSv= specific gravity of volatile solidsThus, if one-third of the solid matter contains fixed soils at a specific gravity of and two-thirds of the solid matter consist of volatile soils with a specific gravity of , the overall specific gravity would be:orSs = 1 = if Sludge consist of 10 % solids, 90 % water, using above equation gives:orSsl= 1 = 2 of 2 Now Volume of Sludge can be computed using.
2 WhereVsl= Volume of Sludge , m3Ms= Weight of dry solids, kgDw= density of water, kg/m3 Ssl= specific gravity of sludgePs= percent soils expressed as a decimal Say we have 200 kg of the above Sludge , Vsl = 2 m3
