METHOD OF DISINFECTING WATER FROM THERAPEUTIC AND SWIMMING POOLS Russian patent published in 2000 - IPC

FIELD: sanitary and hygiene. SUBSTANCE: disinfecting procedure involves treatment with (i) polyhexamethyleneguaniline phosphate salt formed in reaction of exchange decomposition of polyhexamethyleneguanidinium chloride with 40% aqueous solution of diammonium phosphate, or (ii) polyhexamethyleneguanidinium phosphate, or (iii) phosphate salt of copolymers of polyhexamethyleneguanidine with higher monoamines. Flow- or recycle- type pool water is treated with above-indicated reagent in concentration 0.5-1.5 mg/l. In particular, recycle-type pool water is passed through layer of clinoptilolite treated with mentioned reagent to achieve its concentration 1-2%. EFFECT: increased reliability of antiseptic protection of pool water and reduced toxicity of reagent including its allergic activity.