Method for recovering and adsorbing tungstate radicals in scheelite beneficiation wastewater

A technology of mineral processing wastewater and tungstate, which is applied in mining wastewater treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of low recovery rate of tungstate and slow recovery rate, so as to prevent secondary pollution and realize Recycling, the effect of enhancing the adsorption capacity
CN110642335AActive Publication Date: 2020-01-03NANCHANG HANGKONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANCHANG HANGKONG UNIVERSITY
Publication Date
2020-01-03

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Abstract

The invention relates to a method for recovering tungstate radicals in beneficiation wastewater, and concretely discloses a method for recovering and adsorbing tungstate radicals in scheelite beneficiation wastewater. The invention aims to solve the technical problems of low recovery rate and low recovery rate of tungstate radicals in scheelite beneficiation wastewater in the prior art. The methodcomprises the following steps: a three-electrode system which is composed of a polyaniline / carbon cloth composite electrode material, an Ag / AgCl electrode and a platinum electrode is connected to anelectrochemical workstation, and electro-adsorption is carried out under the condition of electric field force by using the polyaniline / carbon cloth composite electrode material as a working electrode, the Ag / AgCl electrode as a reference electrode, the platinum electrode as a counter electrode and the scheelite beneficiation wastewater to be treated as an electrolyte. The method has a simple andrapid process, and makes the recovery rate of tungstate ions adsorbed for 2 h reach 75%.
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Description

technical field

[0001] The invention relates to a method for recovering tungstate radicals in mineral processing wastewater. Background technique

[0002] At present, the recovery rate of scheelite mineral processing wastewater is not high, especially the mineral processing wastewater of sulfide ore and oxidized ore symbiotic ore is mostly discharged up to the standard or only a small part can be recovered. The concentration of heavy metals, suspended solids and chemical oxygen demand in mineral processing wastewater greatly exceed the national standards, which can easily affect the surrounding areas of the mine. Therefore, if the mineral processing wastewater can be made harmless and reused as a resource, it will not only control environmental pollution but also save water resources, and will also generate huge social and economic benefits.

[0003] The recovery process of metal ions mainly includes the following types: chemical precipitation method, redox method, biologic...

Claims

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