Silver-containing wastewater treatment device capable of reducing resource waste

Abstract

The invention discloses a silver-containing wastewater treatment device capable of reducing resource waste. The device comprises a treatment box and a cover plate arranged at the top of the treatmentbox; a first driving motor is arranged on the cover plate; a transmission shaft is arranged on an output shaft of the first driving motor, a plurality of stirring rods are arranged on the transmissionshaft, a liquid outlet is formed in the side wall of the treatment box, a first partition plate is arranged in the treatment box, a plurality of first through holes are formed in the first partitionplate, and a plurality of push rods matched with the first through holes are arranged below the first partition plate; the first partition plate is arranged above the liquid outlet, and when the firstpartition plate reaches a preset value, one end of the first partition plate is overturned downwards to the bottom of the liquid outlet; the recovery of elemental silver and the treatment of small-particle suspended matters are synchronously carried out, so that the sewage treatment efficiency is improved; the elemental silver and a flocculent precipitate are separated through the first partitionplate, the floccule is prevented from covering the surface of the elemental silver to influence direct recovery of the elemental silver, and recovery of the elemental silver is more convenient.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a treatment device for silver-containing waste water which reduces waste of resources. Background technique [0002] Protecting the environment is an unshirkable social responsibility of citizens, and compliance with environmental laws and regulations is a prerequisite for the production and operation of enterprises. At present, the relevant processes of the PCB factory treat the silver-containing waste liquid with a silver concentration of about 5 grams per liter and then directly discharge it to the waste water station for treatment. Since the silver content of the silver-containing waste liquid is very high and far exceeds the final discharge standard of waste water, the waste water station needs to add a large amount of chemicals for treatment in order to meet the discharge standard. This method of treating silver-containing wastewater may easily cause s...

AI Technical Summary

Problems solved by technology

This method of treating silver-containing wastewater can easily cause secondary pollution such as dripping, leaking, and leaking during the transportation of waste liquid, and affect production, resulting in high production costs.

Images