A construction method of vertical engineering barrier system for neutralizing acid mine wastewater

A technology of acid mine wastewater and construction method, which is applied in water conservancy projects, mining wastewater treatment, neutralized water/sewage treatment, etc., and can solve the problems of inability to neutralize acid mine wastewater, effective control, poor uniformity of pollution isolation performance, etc. , to achieve excellent governance effect and strong adaptability
CN111101538BActive Publication Date: 2021-04-06湖南省和清环境科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖南省和清环境科技有限公司
Publication Date
2021-04-06

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Abstract

The invention provides a construction method of a vertical engineering barrier system for neutralizing acidic mine wastewater. The method comprises the following steps: selecting a site for construction of an engineering barrier, excavating an engineering barrier ditch; making a reinforcement cage, and placing the reinforcement cage on the reinforcement in the direction of seepage Geotextiles are laid on the inside of the cage; mixed blocks are made, and the mixed blocks are filled into the steel cage to form engineering barrier wall units; the engineering barrier wall units are combined and assembled, and hoisted into the engineering barrier ditch; data is collected around the engineering barrier , to monitor the heavy metal blocking effect. Compared with the prior art, the raw material of the mixed block of the present invention is prepared from clay, fly ash, and chemical additives, which has lower cost and good treatment effect; it adopts the combination and assembly of engineering barrier wall units, and adapts to site conditions and engineering needs. Strong; the construction steps are simple and easy, and the lifting and replacement are convenient; the engineering barrier wall units can be produced and sold on a large scale, with high economic benefits, and greatly shorten the construction period of the engineering barrier.
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Description

technical field

[0001] The invention relates to the technical field of environmental engineering geology and isolation control of heavy metal polluted sites, in particular to a construction method for a vertical engineering barrier system for neutralizing acidic mine wastewater. Background technique

[0002] For a long time, mineral resources, as an important resource that is conducive to promoting economic development, have been exploited in large quantities. However, due to immature mining technology and inadequate concept of sustainable development, the long-term unreasonable development of mines has led to various mine problems, the most representative of which is acid mine wastewater. At present, the research on acid mine wastewater mainly includes several aspects such as its properties, harmless treatment and resource utilization. Acid mine wastewater has a wide range of sources, and its low pH value and high concentration of heavy metal ions pose a serious threat to ...

Claims

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