A Review Of stainless multi disc screw press for sludge dewatering
wherever L is definitely the thickness in the recently formed sludge residue layer, ρs would be the density of solids particles, (overline n ) is the average porosity on the sludge residue layer, σ will be the retention parameter, qp would be the input flux fee of raw sludge, Ky would be the erosion fee, and ns would be the porosity of influent s