Treatment method of beneficiation wastewater

Abstract

The invention relates to a treatment method of beneficiation wastewater. The treatment method comprises steps as follows: the beneficiation wastewater is introduced into a wastewater pond, the pH (potential of hydrogen) value of the beneficiation wastewater is adjusted to range from 4 to 7, hydrogen peroxide and ferrous sulfate are added to the beneficiation wastewater, the mixture is stirred to be subjected to a reaction and then is subjected to standing for 10-20 hours, sediments in the beneficiation wastewater are removed, a supernatant is poured into a sedimentation tank, polyacrylamide is added, sedimentation is performed and sediments are filtered out, and recycle water is obtained. With the adoption of the treatment method of the beneficiation wastewater, the wastewater treatment effect is stable, efficient treatment is realized, the operation is simple, the technological procedure is short, the cost is low, and the method has the advantages of energy conservation, environment protection, and wide application prospects.

Description

technical field [0001] The invention relates to a treatment method for ore dressing wastewater, which belongs to the field of water treatment. Background technique [0002] During the production process of metal mines, a large amount of beneficiation wastewater will be produced. The wastewater has complex water quality and various components, and contains a variety of heavy metals, beneficiation agents and other pollutants. If it is discharged outside, it will cause serious harm to the surrounding ecological environment. If it is returned to the process Recycling, the harmful substances in the wastewater will continue to accumulate, which will have an adverse impact on the production process and equipment. Therefore, it is necessary to choose an appropriate treatment method to treat the flotation wastewater. At present, the commonly used treatment methods include chemical precipitation method, adsorption method, microbial method, artificial wetland method, etc. Although thes...

AI Technical Summary

Problems solved by technology

[0002] During the production process of metal mines, a large amount of beneficiation wastewater will be produced. The wastewater has complex water quality and various components, and contains a variety of heavy metals, beneficiation agents and other pollutants. If it is discharged outside, it will cause serious harm to the surrounding ecological environment. If it is returned to the process Recycling, the harmful substances in the wastewater will continue to accumulate, which will have an adverse impact on the production process and equipment. Therefore, it is necessary to choose an appropriate treatment method to treat the flotation wastewater

At present, the commonly used treatment methods include chemical precipitation method, adsorption method, microbial method, artificial wetland method, etc. Although these treatment methods have certain advantages, they are generally limited by factors such as mine production conditions, environmental conditions or treatment requirements. For example, the chemical precipitation method is relatively effective in treating heavy metals, but the treatment effect of organic substances is poor; the adsorption method can effectively treat heavy metal wastewater, but when the adsorbent is regenerated, the pollutants will be regenerated; the cost of microbial treatment is relatively low, but Reaction conditions are relatively harsh, and it is difficult to be popularized and applied; the wetland method occupies a large area, and the treatment cycle is long, and it is difficult to meet the treatment requirements