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Mine ecological environment pollution and ecological restoration

来源: | 作者:佚名 | 发布时间 :2023-11-28 | 247 次浏览: | Share:

From sandstorms to haze to global warming, environmental issues are getting more and more attention. Whether it is our country or other countries in the world, in the early stage of economic construction, it is inevitable to develop the economy at the expense of the environment, such a consequence is that today our ecological environment is getting worse and worse, and taking the sustainable green development road has become the common development goal of all countries. As an important energy development project of various countries, the development of mine resources, in addition to providing resources for the development of various countries, the ecological environment problems brought by its development have also become a major problem of environmental protection work. The implementation of the restoration of the ecological environment of mines will be conducive to the promotion of the entire environmental protection work.

First, the concept, significance and principle of mine ecological restoration

(A) mine ecological restoration concept

People's thoughts on the restoration of the ecological environment of mines appear with the rapid deterioration of the environment. This obviously lagging ecological restoration not only requires a lot of manpower, material and financial resources, but also may achieve little [1]. Therefore, in order to repair the ecological environment of the mine, it is necessary to change the traditional mining concept of "economic first, environmental lag", to take the concept of "environmental first", before mining resources, to develop relevant environmental protection measures, and fully implement environmental protection measures in the process of mining. Only in this way can the ecological restoration work of the mine be effective.

(2) Significance of mine ecological restoration

After mining, if the ecological restoration is not carried out effectively, it will bring many environmental problems. If the remaining tailings after mining are not cleaned up in time, under the action of the wind, these tailings will fly everywhere, not only forming sandstorm weather, but also falling in the surrounding area after the wind disappears, causing a huge impact on the surrounding environment. In addition, if the minerals containing heavy metals are not cleaned up in time, then after a long period of rainfall, they will penetrate into the groundwater and pollute the groundwater, causing bad effects on the human body. According to statistics, the direct or indirect losses caused by groundwater pollution in mining areas are up to tens of billions of yuan every year. Therefore, carrying out ecological restoration work in mines can not only bring ecological benefits, but also bring economic benefits.

(3) Principles of mine ecological restoration

The "restoration" we have been talking about is not only to restore the mine to its original appearance and plant the previous green vegetation, but to repair, transform and regulate the entire ecosystem after the mine is mined. In the process of mine restoration, it is necessary to carry out restoration according to the local reality, different regions have different soil properties, different needs of the masses and regional characteristics, etc., which are all factors that need to be taken into account in the process of restoration. In the process of mine ecological restoration, the most important restoration principle is to adapt to local conditions, which can make the abandoned mine play the maximum value. According to the different purposes and uses of mine abandoned land, we can establish forestry land ecosystem, recreational system and agricultural ecosystem to effectively restore it [2].

Second, the causes of mine ecological environmental pollution

First of all, in the mining process of the mine, there will be a large amount of dust material, after mining, there will be residual tailings. Whether it is dust or tailings, under the action of wind, it will be diffused in the air. Once the concentration of particulate matter in the air increases, the probability of haze weather will increase. Secondly, after the mining is completed, the surface is relatively empty, and if it encounters slight crustal movement, it may induce earthquakes. The slope of the mine is loosened during mining, and the landslide may occur under the influence of heavy rainfall. Finally, if mineral resources are not properly treated, especially non-ferrous metals, these harmful substances will penetrate to the surface along with precipitation in the process of development, polluting soil and water resources [3].

Iii. Remediation measures for ecological environmental pollution in mines

(1) Rational utilization of tailings

Tailings refers to the ore with the lowest useful mineral items after beneficiation and other comprehensive utilization treatment, and is the main component of solid waste.

For the treatment of tailings, we can mainly adopt the following ways to achieve comprehensive utilization:

One is to carry out technical treatment. Using more advanced technology, the tailings are screened again to maximize the recovery of useful parts of the tailings, so that the number of tailings can be minimized.

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