Finishing & Environmental
Coagulant does not disappear. Most of what you dose leaves as sludge you have to pay to remove.
— kg/day
Solids basis, before dewatering
Textile ETP sludge is usually classified hazardous because of heavy metals in dye residues. Disposal cost scales with the wet cake weight, not the dry solids.
ETP Sludge Generation Estimator — free, with the formula and a worked example, at Textile School.