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Method for processing gold mine wastewater

A treatment method and waste water technology, which is applied in the field of pollutant treatment, can solve the problems of waste water environmental pollution, etc., and achieve the effect of high treatment efficiency, simple process flow and good treatment effect

Inactive Publication Date: 2017-01-11
铜仁市万山区盛和矿业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a fast and efficient gold mine waste water treatment method to solve the problem of waste water polluting the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A treatment method for gold mine wastewater, the method may further comprise the steps:

[0023] a. Reagent adjustment: Add sulfuric acid, hydrochloric acid, sodium hydroxide solution, and copper sulfate solution with a concentration of 55% to the waste water, control the pH value of the waste water in the reaction process to be 8, and the reaction time is 30 minutes;

[0024] b. Coagulation: Stir the reacted wastewater in a clockwise direction according to the linear velocity of 15m / s, and add ferric chloride to put the wastewater into the sedimentation tank and let it stand for 15min;

[0025] c. Secondary coagulation: After removing impurities, stir the wastewater according to the specified speed and add polyacrylamide to the wastewater, then put it in the sedimentation tank and let it stand for 20 minutes;

[0026] d. Irradiation: irradiate the supernatant of the waste water with an ultraviolet lamp, and the irradiation time is 15 minutes;

[0027] e. Precipitation...

Embodiment 2

[0029] A treatment method for gold mine wastewater, the method may further comprise the steps:

[0030] a. Reagent adjustment: Add sulfuric acid, hydrochloric acid, sodium hydroxide solution, and copper sulfate solution with a concentration of 60% to the waste water, control the pH value of the waste water in the reaction process to 9, and the reaction time is 35 minutes;

[0031] b. Coagulation: Stir the reacted wastewater in a clockwise direction according to the linear velocity of 25m / s, add ferrous sulfate, put the wastewater into the sedimentation tank and let it stand for 20min;

[0032] c. Secondary coagulation: After removing impurities, stir the wastewater according to the specified speed and add polyacrylamide to the wastewater, then put it in the sedimentation tank and let it stand for 25 minutes;

[0033] d. Irradiation: irradiate the supernatant of the waste water with an ultraviolet lamp, and the irradiation time is 20 minutes;

[0034] e. Precipitation: Add zin...

Embodiment 3

[0036] A treatment method for gold mine wastewater, the method may further comprise the steps:

[0037] a. Reagent adjustment: Add sulfuric acid, hydrochloric acid, sodium hydroxide solution, and copper sulfate solution with a concentration of 58% to the waste water, control the pH value of the waste water in the reaction process to be 8.5, and the reaction time is 303min;

[0038] b. Coagulation: Stir the reacted wastewater in a clockwise direction at a linear speed of 20m / s, add ferric chloride, put the wastewater into a sedimentation tank and let it stand for 18 minutes;

[0039] c. Secondary coagulation: After removing impurities, stir the wastewater according to the specified speed and add polyacrylamide to the wastewater, then put it into the sedimentation tank and let it stand for 23 minutes;

[0040] d. Irradiation: irradiate the supernatant of the waste water with an ultraviolet lamp, and the irradiation time is 18 minutes;

[0041] e. Precipitation: Add zinc sulfate...

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PUM

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Abstract

The invention discloses a method for processing gold mine wastewater. The method comprises the steps of reagent adjusting, coagulation processing, secondary coagulation processing, irradiation and precipitate. The foreign material in the waste water is existed in suspension, dissolving cavity and high-molecular states. The method has certain degree of stability, a flocculating agent and a flocculating agent are added, the cavity and suspension impurity in the waste water can be effectively reduced, a flocculating constituent is rapidly aggregated, and can be rapidly removed from water, through precipitation, the processed waste water can greatly reduce the pollution and destroy on natural environment, and effectively solve the waste water discharge problem. The method has the advantages of good processing effect, high processing efficiency and simple process flow, and can completely realize industrial application.

Description

technical field [0001] The invention relates to the technical field of pollutant treatment, in particular to a treatment method for gold mine wastewater. Background technique [0002] Gold mine wastewater is mainly composed of mining and beneficiation process wastewater. The water quality and quantity vary with the properties of soil and rock in the mining area, mining methods, production volume and commissions. The main pollutants in wastewater are suspended substances composed of sediment, clay, humus and grass roots and bark, followed by organic substances. Although this kind of wastewater has a certain degree of stability, it is not easy to settle during the discharge process. It makes the natural water body turbid and the chroma increases. At the same time, it has affected and damaged the phytoplankton, zooplankton, bottom sacrificial organisms and photogroups in the water ecosystem. The water quality of gold mine wastewater belongs to the multi-level coarse dispersio...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F103/10
Inventor 袁再六
Owner 铜仁市万山区盛和矿业有限责任公司
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