Mine ecological restoration method based on acid wastewater sludge

By mixing acid waste water sludge with organic fertilizers and applied to the ecological restoration of the mine, the problems of waste utilization and repair effects in the ecological restoration of the mine have achieved low -cost, efficient heavy metal pollution control and improvement of ecological environment.

CN119366306AInactive Publication Date: 2025-01-28SHAOGUAN TAOLIN GREEN TECH
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Patent Information

Application Number
CN202411704746.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-01-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing technology is difficult to take into account both waste utilization and repair effects in mining ecological restoration, and the repair cost is relatively high.

Method used

The ecological restoration of the mine is based on the method of acid -based waste water sludge. It is treated with acidic wastewater dirt, mixed with organic fertilizers, applied to the original soil of the mine or covered with new artificial matrix, and the patience plants and local plant species are selected.

Benefits of technology

The comprehensive utilization of acid waste water sludge has been achieved, the cost of repair is reduced, the quality of the ecological environment of the mining wasteland is significantly improved, and the heavy metal pollution is effectively controlled.

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Abstract

The invention discloses a mine ecological restoration method based on acidic wastewater sludge, and relates to the technical field of ecological restoration. Comprising the following steps: pretreatment of acidic wastewater sludge: pretreating the acidic wastewater sludge to remove impurities in the sludge; mixing treatment: mixing the acidic wastewater sludge with an organic fertilizer to form a substrate; applying: applying the matrix as an improvement material to original soil of a mine or directly covering the matrix to form a new artificial matrix; plants are selectively planted, tolerant plants and indigenous plant varieties are selected and planted in an application area, and the acid wastewater sludge pretreatment comprises the following steps of screening treatment: feeding sludge into screening equipment; through the filtering effect of the screen, large impurities in the sludge are intercepted; the screened sludge enters the next treatment stage. According to the method, the acid wastewater sludge is reasonably and comprehensively utilized on site, the sludge stacking problem can be effectively solved, secondary pollution caused by the sludge stacking problem can be prevented, and the burden of mine enterprises can be relieved.
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Citation Information

Patent Citations

  • Residual sludge dehydration-free recycling and comprehensive utilization method and system

    CN104973740A

  • Vegetation recovery ecological matrix and preparation method thereof

    CN108617465A

Cited By

  • Method for repairing acid mine by screening humus soil in domestic waste landfill

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