Desulphurisation by physical processes, Application of ion exchange resins, Treatment with activated carbon, Treatment with potassium ferrocyanide,
Use of polyvinyl-imidazole-polyvinyl-pyrrolidone copolymers, Addition of silver chloride, Use of pure paraffin tablets impregnated with allyl isothiocyanate, Electrodialysis, Cation exchange to ensure wine stability, Treatment by membrane operation (bipolar electrodialysis), Treatment by cation exchange to increase acidity