Process for sewage water purification

摘要

Process and apparatus to remove colloids and nitrogen compounds from contaminated water by coagulating the colloids and separating them from the water. The water is then continuously oxidized with chlorine electrolytically to destroy the nitrogen compounds.

主权项

1. A water chlorination process comprising the steps of:
(a) flowing a water stream to be chlorinated in an upward direction along an outside surface of a cathode; (b) flowing a portion of the water stream into an anode compartment, wherein the anode compartment is substantially surrounded by a porous diaphragm; (c) energizing the cathode and one or more anodes and thereby forming and accumulating hydrochloric acid in the anode compartment; (d) stopping the flow of the water stream and denergizing the cathode and one or more anodes; (e) diffusing a portion of the accumulated hydrochloric acid from the anode compartment, through the porous diaphragm, into the cathode compartment and thereby reacting or dissolving calcareous deposits formed on the cathode.