NOVELTY – The electrochemical treatment of waste water containing heavy metals comprises the use of electrolytic cells employing eg. metal sponge cathodes. The ions of heavy metals present in the water are removed cathodically. USE – In applied chemistry.
D15 (Chemical or biological treatment of water, industrial waste and sewage – including purification, sterilising or testing water, scale prevention, treatment of sewage sludge, regeneration of active carbon which has been used for water treatment and impregnating water with gas e.g. CO2, but excluding plant and anti-pollution devices (C02).)