Comprehensive treatment ecological restoration method for magnesite mining area

Abstract

The invention relates to the technical field of comprehensive treatment of magnesite mining areas, and particularly relates to a comprehensive treatment ecological restoration method for a magnesite mining area. The method specifically comprises the following steps of 1, on-site exploration; 2, slope cutting and leveling; 3, water interception and drainage construction; 4, lower-layer slope protection; 5, nutrient soil preparation; 6, mixed slurry preparation; 7, lower-layer nutrient soil layer spray-seeding; 8, upper-layer slope protection; 9, upper-layer nutrient soil layer spray-seeding; 10, covering; 11, spraying system installation; and 12, maintenance. According to the method, a large amount of magnesite tailings and urban sludge in the magnesite mining area are fully utilized for repairing a mine, and the ecological environment of the mining area is improved; a planting matrix is low in cost and good in water retention effect, an effective growth matrix can be provided for greening vegetation, the vegetation coverage rate is high, and scouring resistance is achieved.

Description

technical field [0001] The invention relates to the technical field of comprehensive management of magnesite mining areas, in particular to an ecological restoration method for comprehensive management of magnesite mining areas. Background technique [0002] my country's magnesite reserves are about 3.1 billion tons, accounting for 30.1% of the world's proven reserves, ranking first in the world. It is mainly distributed in Kuandian, Haicheng, Dashiqiao, Zhuanghe, Fengcheng and other places in Liaoning, with reserves of 2.577 billion tons, accounting for about 85% of the national total and 20% of the world's total. Magnesite is an ideal raw material for the production of magnesium compounds. Magnesium compound products play a pivotal role in national economic construction and are mainly used in metallurgy, agriculture, medicine, environmental protection, electronics, national defense and other industries. [0003] While magnesite has made great contributions to the economic...

AI Technical Summary

Problems solved by technology

The water content of the sludge produced by the urban sewage treatment plant is ≥80%, most of the sludge is alkaline, and the pH value is 8-10, so it is not suitable for direct production of reused products

The planting matrix in the prior art contains many components, many materials, complicated preparation, cumbersome preparation process, high cost of planting matrix, poor water-fixing effect, cannot provide effective growth matrix for greening vegetation, and vegetation coverage is low. Erosion resistant

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