The application relates to the technical field of
wastewater recovery devices, in particular to a
wastewater treatment device for
metal extraction, which comprises a
decomposition cylinder, a liquid
discharge valve is fixedly connected to the bottom end output port of the
decomposition cylinder, an isolation disc is fixedly installed at the inner end of the
decomposition cylinder, a plurality of support pipes are fixedly installed at the lower end of the isolation disc, a central rod is rotatably installed at the bottom end of the isolation disc, the output end of a driving motor is fixedly connected with the central rod, a guide
pipe is fixedly installed at the inner end of the support
pipe,
helical holes are formed in the surface of the guide
pipe, and a collecting device is arranged between the guide pipe and the support pipe. The device drives the electromagnetic rod to rotate through the output gear plate, so that the
metal particles in the
metal wastewater can be attached to the surface of the electromagnetic rod in the stirring and flowing process, and are guided into the output pipe along the
helical holes, the treatment process and the metal
recovery process are synchronously performed, compared with the simple
sedimentation and
discharge mode in the prior art, the device can effectively improve the
recovery efficiency of heavy metal particles and reduce the waste of metal resources.