System for auxiliarily treating acid mine waste water by utilizing stepped interception dams and process thereof

A technology for acid mine wastewater and auxiliary treatment, applied in multi-stage water/sewage treatment, mining wastewater treatment, sustainable biological treatment, etc., can solve the problems of reduced treatment effect, harsh treatment conditions, increased operation difficulty, etc., to simplify and complicate The degree and difficulty of treatment, the effect of reducing heavy metal content and acidity, and increasing the treatment effect
CN102701545AInactive Publication Date: 2012-10-03GUIZHOU NORMAL UNIVERSITY
2 Cites 29 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUIZHOU NORMAL UNIVERSITY
Publication Date
2012-10-03
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a system for auxiliarily treating acid mine waste water by utilizing stepped interception dams and a process thereof. The system for auxiliarily treating the acid mine waste water by utilizing the stepped interception dams comprises at least three levels of interception dams, wherein the interception dams are distributed in a shape of naturally falling trapezoid so as to carry out primary treatment, neutralization treatment, reducing treatment and impurity eliminating treatment on the acid mine waste water. The system and the process disclosed by the invention have theadvantages that the stepped interception dams are established on a natural ditch by utilizing natural falls, and the functions of obstruction of the stepped dams, physical and chemical reaction of microorganisms, filtering and adsorption of plant roots and the like are also utilized, so that the process is a subsequent auxiliary and deep treatment method, the treating effect is improved, the complexity and treating difficulty of the traditional method are simplified, the cost is reduced, the water quality is improved, the heavy metal content and the acidity are further reduced, and the damages of the mine waste water to water source areas and ecological environment are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a system and a process for assisting the treatment of acidic mine wastewater by using cascade interception dams, and belongs to the technical field of sewage treatment. Background technique

[0002] There are a lot of metal minerals and coal resources in the southwest of my country, and most of the metal mines exist in the form of metal sulfides. Under the action of oxygen and microorganisms in the air, the sulfides in the mined and abandoned metal mines or coal mines undergo After the process sulfate compounds are formed which dissolve in water. In this way, not only the concentration of heavy metal ions in the water is increased, but also the acidity of the water body is increased (that is, the pH value of the water body is lowered).

[0003] At present, there are mainly physical methods (adsorption method), chemical methods (flocculation method, precipitation method, chelating agent method), membrane treatment method and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More