Patent ID: 11958766
Assignee: CHONGQING JIAOTONG UNIVERSITY
Field: Environmental technology (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. Recycling treatment equipment for recycling heavy metals from complexed heavy metal wastewater, comprising a wastewater separation and concentration component (1), an oxidization and decomplexing component (2), an electrolytic recovery component (3), and an intelligent detection component (4), wherein
the wastewater separation and concentration component (1) comprises a microfiltration treatment device (10) for performing microfiltration on the complexed heavy metal wastewater, a nanofiltration treatment device (11) for performing nanofiltration on primary fresh water treated by the microfiltration treatment device (10), a reverse osmosis water purifier (12) for performing reverse osmosis purification on secondary fresh water treated by the nanofiltration treatment device (11), and a fresh water collection treatment device (13) for purifying tertiary fresh water treated by the reverse osmosis water purifier (12);
the oxidization and decomplexing component (2) comprises a decomplexing cavity (20) communicated with the fresh water collection treatment device (13), and a mixing cavity (21) communicated with the decomplexing cavity (20); the decomplexing cavity (20) treats primary concentrated water, secondary concentrated water, and tertiary concentrated water which are treated by the microfiltration treatment device (10), the nanofiltration treatment device (11), and the reverse osmosis water purifier (12); the mixing cavity (21) is internally provided with a reaction plate (210); a plurality of mounting openings (2100) are uniformly formed in a side wall of the reaction plate (210); each of the mounting openings (2100) is filled with a filler bag (2101); a curved swing plate (211) is arranged at a position, opposite to the reaction plate (210), in the mixing cavity (21); the curved swing plate (211) is connected with an oxidant box (2120) through a first extraction pump (212); a plurality of spraying holes (2110) are formed in a side wall, opposite the reaction plate (210), on the curved swing plate (211); an actuating frame (2111) for controlling the curved swing plate (211) to swing left and right is arranged at a bottom end of the curved swing plate (211);
the electrolytic recovery component (3) comprises an electrode mounting barrel (30) arranged vertically in the decomplexing cavity (20), at least one positive electrode plate (31) and at least one negative electrode plate (32) which is arranged on the electrode mounting barrel (30), and a direct current power supply (33) electrically connected to the at least one positive electrode plate (31) and the at least one negative electrode plate (32); the at least one negative electrode plate (32) comprises an inner-layer electrode plate (320) and an inner-layer electrode plate protective shell (321) covered on an outer wall of the inner-layer electrode plate (320); a carbon-based reduction patch (322) is arranged on an outer wall of the inner-layer electrode plate protective shell (321); the intelligent detection component (4) comprises a controller (40) electrically connected to the microfiltration treatment device (10), the nanofiltration treatment device (11), the fresh water collection treatment device (13), the first extraction pump (212), the at least one positive electrode plate (31), and the at least one negative electrode plate (32), and a water quality detector (41) used for detecting water quality in the fresh water collection treatment device (13).