Purification of salt containing waste water by wet oxidation at supercritical conditions

Abstract

Abstract In the process according to the invention for the purification of salt-laden waste water by wet oxidation of organic constituents at supercritical conditions, the reaction is carried out in the form of a flame (5). The supercritical zone is enclosed by a subcritical jacket stream (4) formed from cooling water. At one end of the reactor (1) designed as a cylindrical pressure vessel at least one burner nozzle (2) and at least one annular cooling water feed position (48) surrounding the burner nozzle are provided; at the other end, at least one collective exit position (160) for cooling water, reaction products and, in particular, precipitated salts are arranged. Because of the jacket stream, there are no blockages due to salts; corrosion problems are substantially neutralised. <IMAGE>

Inventors

• 👤 H. Lucas La Roche
• 👤 Markus Weber
• 👤 Beat Dr. Zehnder

Bibliographic Details