Method for treating and recycling fluorite beneficiation wastewater

A technology of mineral processing wastewater and treatment method, which is applied in the fields of metallurgical wastewater treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of waste of resources, environment, pollution, etc. Easy to use effect

Inactive Publication Date: 2019-04-05
HUNAN SHIZHUYUAN NON FERROUS METAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a treatment and reuse method for fluorite mineral processing wastewater, aiming at the problems of resource waste and environmental pollution caused by difficult treatment and reuse of fluorite mineral processing wastewater

Method used

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  • Method for treating and recycling fluorite beneficiation wastewater
  • Method for treating and recycling fluorite beneficiation wastewater
  • Method for treating and recycling fluorite beneficiation wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Water treatment and reuse test of total tailings of fluorite beneficiation plant in Shizhuyuan Dongbo Concentrator

[0030] Table 1 shows the water quality analysis of the total tailings water and wastewater of each stage of fluorite beneficiation plant in Shizhuyuan Dongbo Concentrator.

[0031] According to the technological process of the present invention, first add 500g / m3 to the total tailings water of fluorite 3 lime, stirred for 3 minutes, and settled for 30 minutes to obtain the first supernatant; then add 100g / m3 to the first supernatant 3 of polyaluminum, add 0.5g / m after stirring for 1min 3 The polyacrylamide produced a large number of flocs after stirring for 2 minutes, and the second supernatant was obtained after settling for 20 minutes; 2 SO 4 After adjusting the pH of the second supernatant to 7.5, add 200 g / m 3 Activated carbon, after adsorption for 30 minutes, was filtered to obtain the treated water sample; finally, the fluorite flotat...

Embodiment 2

[0037] Example 2: Water treatment and reuse test of fluorite low-coarse tailings in Shizhuyuan Dongbo Concentrator

[0038] Table 3 shows the water quality analysis of fluorite low-grade roughing tailings water and wastewater at various stages in Shizhuyuan Dongbo Concentrator.

[0039] According to the technological process of the present invention, add 400g / m3 to fluorite low coarse tailings water 3 lime, stirred for 2min, and settled for 20min to obtain the first supernatant; then add 100g / m3 to the first supernatant 3 of polyaluminum, add 0.5g / m after stirring for 1min 3 The polyacrylamide produced a large number of flocs after stirring for 2 minutes, and the second supernatant was obtained after settling for 20 minutes;2 SO 4 After adjusting the pH of the second supernatant to 7.5, add 200 g / m 3 Activated carbon, after adsorption for 30 minutes, was filtered to obtain the treated water sample; finally, the fluorite flotation open-circuit verification test was carried o...

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Abstract

The invention discloses a method for treating and recycling fluorite beneficiation wastewater. The method includes following steps: 1), adding lime into the fluorite beneficiation wastewater, sufficiently stirring, and coagulating and settling to obtain first supernate; 2), adding polyaluminum and polyacrylamide into the first supernate obtained in the step 1), stirring, and performing coagulationand sedimentation to obtain second supernate; 3), adjusting pH of the second supernate obtained in the step 2) to 6-8, adding activated carbon for adsorption, and removing the activated carbon afteradsorption is completed to obtain a final treatment water sample which can be recycled for a fluorite flotation system. The method is simple in operation; lime and polyaluminum are utilized to performcascaded coagulating and settling on suspended particles in the wastewater, and the activated carbon is utilized to selectively adsorb key impact factors in the wastewater, so that the wastewater after being treated by utilizing the method can be recycled for fluorite beneficiation, and efficient recycling of the fluorite beneficiation wastewater is realized.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a treatment and reuse method for fluorite mineral processing wastewater. Background technique [0002] my country is rich in mineral resources, with large reserves and various types, among which metal mines are an important source of metal resources. A large amount of beneficiation wastewater will be generated in the process of mineral mining and beneficiation. According to statistics, in 2014, the discharge of industrial wastewater in my country was 20.53 billion tons, and the total amount of mineral processing wastewater discharged in my country every year accounted for about one-tenth of the total industrial wastewater in the country, and the treatment rate of mineral processing wastewater was only 4.23%. In the flotation process, in order to effectively separate useful metals, a large number of flotation agents are added in different opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/00C02F103/16
CPCC02F1/283C02F1/5236C02F1/56C02F2103/16
Inventor 陈克锋李文风薛珂龙冰常庆伟阳华玲
Owner HUNAN SHIZHUYUAN NON FERROUS METAL
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