Method and installation for the disinfection of water of swimming by the sodium hypochlorite in situ electrochemically product

摘要

The present invention relates to electrochemical treatment processes and plants for water purification by the action of sodium hypochlorite. The technical field of the invention is that of pool treatment and recycling plants for water disinfection and purification, essentially from organised bathing pools such as those from swimming pools and aquatic parks. The plant according to the process of the invention can be added to the main regeneration circuit (9) existing in the said pools (1) by diverting the flow of the recycled water to be treated into secondary circuits (17 and 18). One of these circuits (17) comprises a vessel (8) containing a concentrated solution of hydrochloric acid and, in parallel, a vessel (7) containing a solution of sodium chloride, enabling given pH and salinity values to be maintained in the main circuit (9). Another circuit (18) comprises electrochemical cells (10) which convert the sodium chloride into sodium hypochlorite to maintain in the circuit (9) a given active chlorine content which is compatible with regulations and the users' comfort, measured cyclically by a measuring probe (21) and regulated by a system of valves (11 and 12) which are controlled manually or automatically. IMAGE