Patent ID: 11873242
Assignee: ARIANEGROUP SAS
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method for treating an aqueous solution containing ammonium perchlorate and optionally nitrate ions, said method having a nitrification/denitrification sequence then a step of reducing perchlorates, a liquid effluent obtained at the end of the step of reducing perchlorates being subjected to a first membrane filtration,
wherein a permeate obtained from the first membrane filtration is put into contact, in a reactor in aerobic conditions, with microorganisms able to carry out the oxidation of organic materials,
then in that a liquid effluent leaving the reactor is subjected to a second membrane filtration,
the first membrane filtration and the second membrane filtration being carried out on a same membrane filtration unit.