METHOD FOR REGENERATION OF WATER FROM URINE Russian patent published in 2018 - IPC G01N33/48 G01N33/483 

FIELD: biotechnology.

SUBSTANCE: invention relates to medical biotechnology and can be used in water supply systems for long-term, autonomous, self-contained space and ground living objects. For regeneration of water urine is collected and preserved by adding an aqueous solution of orthophosphoric acid (H₃PO₄) containing oxidizing agents to pH of 3 to 5. Preservatives are aqueous solutions containing 44.3 %, H₃PO₄ and 11 % chromium oxide (CrO₃), or aqueous solution containing 37 % H₃PO₄ and 13 % potassium dichromate (K₂Cr₂O₇), or 37.5 % H₃PO₄ and 2.5 % potassium permanganate (KMnO₄). Next resulting mixture is purified by placing it in an air stream of a low-temperature evaporator at a temperature of +60 °C and collecting the desired product in the form of condensate. Distillate thus obtained corresponds to GOST-50804-95 standards for drinking water.

EFFECT: invention provides improvement in quality of water purification recovered from urine with reduction of amount of reagents used.

1 cl, 7 tbl, 1 ex