Influence of composite particle formation on the performance and economics of grit removal
S.J.Judd, M.Khraisheh, K.L.Al-Jaml, D.M.Jarman, and T.Jahfer
(Cellulose Acetate: 1 and 1.2mm)
(Soda-Lime Glass: .65 and .69mm)
(Barium Titanate: .27 and .52mm)
Grit is routinely removed at the headworks of municipal wastewater treatment works to limit its onerous impact on downstream processes. Grit separation technologies are normally based on sedimentation of a homogeneous material (usually sand). However, in practice inorganic grit particles are likely to be combined with organic matter, such as fats oils and grease (FOG), producing a composite particle whose settling properties vary with the inorganic/organic content.