Search International and National Patent Collections

1. (WO2018220251) BATCH PROCESS FOR CONTINUOUS TREATMENT OF LIQUID EFFLUENTS USING ELECTROCHEMICAL TECHNIQUES FOR PURIFYING SAME

Pub. No.:    WO/2018/220251    International Application No.:    PCT/ES2018/070395
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 01 01:59:59 CEST 2018
IPC: C02F 1/467
C02F 1/66
C02F 1/32
C02F 9/00
Applicants: UNIVERSITAT POLITECNICA DE CATALUNYA
Inventors: GUTIÉRREZ BOUZÁN, Maria Carmen
TORNERO GARCÍA, José Antonio
BUSCIO OLIVERA, Valentina
GUTIÉRREZ MÉRIDA, Mario
Title: BATCH PROCESS FOR CONTINUOUS TREATMENT OF LIQUID EFFLUENTS USING ELECTROCHEMICAL TECHNIQUES FOR PURIFYING SAME
Abstract:
The invention relates to a batch process for continuous treatment of effluents using electrochemical techniques for purifying same, which comprises performing a process for discolouring and/or oxidising an effluent using electrochemical techniques, said effluent being subjected to: a pretreatment process; an analysis of properties of the effluent; a circulation through an electrochemical cell (E1, E2) that provides the effluent with oxidising species, thus starting the oxidation and/or discolouration of the effluent; next, the effluent is used to fill one or several auxiliary tanks (T2, T3); after a time period with the effluent in said auxiliary tanks (T2, T3) a measurement of the degree of discolouration and/or oxidation of the effluent is taken, and if the degree of discolouration and/or oxidation obtained is no higher than a threshold, a recirculation towards the electrochemical cell is started; when one of the auxiliary tanks (T2, T3) reaches or exceeds the set degree of discolouration and/or oxidation, it is discharged, or the reconstitution of the effluent is initiated.