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Zero-emission tailings pond system and implementation method thereof

A technology of tailings storage and zero discharge, which is applied in water conservancy projects, sea area projects, dikes, etc., can solve the problems of inability to clean and divert sewage, and difficult drainage of rainwater, and achieve significant economic benefits, increase evaporation, and increase evaporation area effect

Active Publication Date: 2018-08-07
LANZHOU ENG & RES INST OF NONFERROUS METALLURGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a zero-discharge tailings pond system to solve the problem that the rainwater in the wet tailings pond is not easy to discharge and cannot realize complete cleaning and diversion

Method used

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  • Zero-emission tailings pond system and implementation method thereof
  • Zero-emission tailings pond system and implementation method thereof

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Embodiment 1

[0035] Step 1: Use survey methods to find out that the bedrock permeability coefficient of a tailings reservoir is less than 1×10 -7 cm / s, natural bedrock is used for anti-seepage, and grouting is carried out at the positions with cracks to ensure the integrity of bedrock anti-seepage;

[0036] Step 2: Build flood interception dam 3 and seepage interception dam 2, build vertical seepage intercepting bodies at the flood interception dam and seepage interception dam, vertically intercept seepage to the bedrock position, and form a complete anti-seepage layer in the reservoir area;

[0037] Step 3: According to the total amount of primary flood outside the reservoir, determine the height of the flood interception dam and the confluence and discharge capacity of the trough-grid slope to ensure that the water outside the reservoir does not enter the reservoir. The surface confluence is intercepted and intercepted by the slope confluence, and the valley confluence is intercepted by ...

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Abstract

The invention discloses a zero-emission tailings pond system and an implementation method thereof, belongs to the field of tailings pond environment protection, and aims to solve the problems that rainwater in a wet-discharge tailings pond is hard to discharge, and complete wastewater cleaning and distributing cannot be achieved. The zero-emission tailings pond system comprises a seepage interception dam, a flood interception dam, flood interception channels and drainage wells, wherein the seepage interception dam is arranged below a tailings dam, the flood interception dam is arranged at theupstream of a tailings accumulation body, the flood interception channels are arranged between the seepage interception dam and the flood interception dam and on two sides of the tailings accumulationbody and the tailings dam, and one drainage well is arranged at the downstream of each of the flood interception dam and the tailings dam. The zero-emission tailings pond system has the advantages that a complete anti-seepage layer is formed in a tailings pond through the anti-seepage technology, tailing pond wastewater is collected and recycled at the seepage interception dam and prevented frompolluting underground water, flood outside the tailings pond is intercepted by the flood interception dam and the slope convergence flood interception channels and discharged, complete wastewater cleaning and distributing is achieved, rainfall in the tailings pond is stored in the tailings pond, and zero wastewater emission is achieved by using a regulating system in the tailings pond.

Description

technical field [0001] The invention belongs to the field of tailings pond environmental protection, and in particular relates to a zero-discharge tailings pond system and an implementation method. Background technique [0002] Water pollution from tailings dams is a big problem. In the design of existing tailings dams in my country, sewage and diversion have been realized, but zero discharge has not been achieved. Some rainfall passes through the tailings dams and then is discharged out of the dams by the flood drainage system. Here During the process, the water flow also carried some pollutants to the outside of the reservoir, causing environmental pollution. [0003] At present, the dry tailings pond can achieve zero sewage discharge under the condition of good anti-seepage, but in the wet tailings pond, more rainwater enters the pond. It will cause partial pollution, and complete cleaning and diversion cannot be achieved. Contents of the invention [0004] The purpose...

Claims

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Application Information

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IPC IPC(8): E02B3/00E02B3/10E02B8/00E02B8/06E02D31/00
CPCE02B3/00E02B3/10E02B8/00E02B8/06E02D31/00Y02A10/11
Inventor 陈天镭秦婧
Owner LANZHOU ENG & RES INST OF NONFERROUS METALLURGY
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