Process method for treating mine acidic waste water

A technology of mine acid wastewater and process method, which is applied in mining wastewater treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of high cost, inability to be widely promoted, high service life preparation cost and high maintenance cost, To achieve the effect of low cost and good operability

Inactive Publication Date: 2012-08-29
GUIZHOU NORMAL UNIVERSITY
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Problems solved by technology

The above processing technologies have been applied to a certain extent due to their respective advantages, but they are also difficult to be popularized due to their respective shortcomings and limitations.
Micro-electrolysis technology mainly uses iron filings and carbon particles as micro-electrolysis fillers. Therefore, after a period of water treatment reaction, adverse phenomena such as blockage and agglomeration will occur. At the same time, there are problems before and after the micro-electrolysis reaction. The problem of pH adjustment, the cost is higher
Due to the serious secondary pollution of sulfur and the high cost of vulcanizing agents, the application of the sulfide precipitation method is limited.
Membrane treatment technology can effectively treat mine acid wastewater to a certain extent, but the servi

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  • Process method for treating mine acidic waste water
  • Process method for treating mine acidic waste water
  • Process method for treating mine acidic waste water

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[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.

[0019] Such as figure 1 As shown, a kind of process method for processing mine wastewater provided by the present invention, its steps are: primary precipitation A: mine wastewater 1 is added into primary sedimentation tank 2 to carry out initial precipitation, obtain residue 8 and primary sedimentation wastewater 9; Stage Filtration B: Add Stage 1 Sediment Wastewater 9 to Filter 1 3 and Filter 2 4 for filtration to obtain residue 8 and Stage 1 Filter Wastewater 10; Stage 2 Precipitation C: Add Stage 1 Filter Wastewater 10 to Stage 2 Settling Tank 5 precipitation to obtain residue 8 and secondary precipitation wastewater 11; secondary filtration D: filter the secondary precipitation wastewater 11 through the filter 6 and then flow out to obtain water 12 that meets the discharge standard...

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Abstract

The invention discloses a process method for treating mine acidic waste water. The method comprises the steps of performing primary precipitation, performing primary filtration, performing secondary precipitation and performing secondary filtration. By the method, the pH value of the mine acidic waste water can be regulated to 6 to 8, the national standard of the mine waste water pH emission is achieved, and the antimony content of the antimony well waste water can be reduced below 0.5 mg/L provided by 'Guizhou Province Environmental Pollutant Emission Standard'. The method has a good effect of treating the heavy metal mine waste water.

Description

technical field [0001] The invention relates to a process method for treating mine wastewater, in particular to a process method for treating acid mine wastewater. Background technique [0002] In my country's Guizhou Province, there are a large number of mineral resources, and most of the mines exist in the form of sulfide ore. During the mining process of these mineral resources, under the action of microorganisms and oxygen in the air, through S 2- → SO 4 2- After the process sulfate compounds are formed which dissolve in water. This not only increases the concentration of heavy metal ions in the water, but also reduces the pH value in the water. [0003] At present, domestic and foreign treatment methods for mine acid wastewater mainly include micro-electrolysis technology, chemical method (precipitation method), membrane treatment method, microwave method and physical method (adsorption method). The above processing technologies have been applied to a certain exten...

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Application Information

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IPC IPC(8): C02F9/02C02F1/52C02F103/10
Inventor 胡继伟刘春李治兵罗晋黄先飞
Owner GUIZHOU NORMAL UNIVERSITY
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