VERFAHREN ZUR ENTSORGUNG VON HAERTEREIABWAESSERN DURCH EINDAMPFEN.

摘要

Hardening waste water, esp. water with a high content of cyanide and/or cyanate is evaporated in a container where the liq. is present as a layer of about 5 mm and heat is supplied to maintain the temp. of the free surface at 50.85 deg.C and over the free surface of the liq. a current of air is passed with a take up capacity for water vapour greater than the water vapour released by the heat supply.