Wastewater treatment equipment for heavy metal processing

Abstract

The invention belongs to the technical field of wastewater treatment equipment, and particularly relates to wastewater treatment equipment for heavy metal processing. The wastewater treatment equipment comprises a tank body, wherein a hollow tube is arranged at the central position of the tank body and is internally provided with a motor-driven rotating shaft; a first packing auger and a second packing auger are connected to the rotating shaft; the rotating direction of the first packing auger is opposite to that of the second packing auger; the second packing auger is provided with a second filter hole; a first biological filtering membrane is arranged in the second filter hole; a filtering plate, a separation board and a plurality of metal ion filtering modules are arranged on the hollowtube; the metal ion filtering modules are communicated with the hollow tube. According to the wastewater treatment equipment disclosed by the invention, large-grained metal impurities in wastewater are filtered and discharged by the filtering plate, so that the influence of the large-grained impurities on wastewater treatment efficiency is avoided; the wastewater subjected to large-grained impurity removal enters the hollow tube, is filtered by a second biological filtering membrane along with the rotation of the second packing auger and then enters the plurality of metal ion filtering modules; meanwhile, the wastewater is filtered, so that the treatment efficiency of the wastewater is improved.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment equipment, in particular to wastewater treatment equipment for heavy metal processing. Background technique [0002] Heavy metal wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater. Minamata disease and Itai-itai disease, which shocked the world in Japan in the 1960s, were caused by mercury-containing wastewater and cadmium-containing wastewater polluting the environment respectively. Therefore, all countries attach great importance to the treatment of heavy metal wastewater. [0003] Treatment characteristics and basic principles The heavy metals in wastewater cannot be decomposed and destroyed by various common methods, but can only transfer their location and change their physical and chemical forms. For example, after chemical precipitation treatment, heavy metals in wastewater are transformed from dissolved ions into i...

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Problems solved by technology

[0005] In order to make up for the deficiencies in the prior art, the present invention proposes a wastewater treatment equipment for heavy metal processing. The present invention is mainly used to solve the problem that the existing wastewater treatment equipment has a poor separation effect on heavy metal ions in wastewater and the efficiency of wastewater treatment is low. question

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