Recycling and treating method for mine water containing suspended substances
A treatment method and mine water technology, applied in the field of water treatment, can solve the problems that the removal rate of suspended solids in the process cannot meet the reuse requirements, the equipment and operation process are complex, and the adverse effects of disinfection treatment are avoided, so as to avoid many mechanical rotating parts and occupy The effect of small area and cost saving
Inactive Publication Date: 2010-07-21
CHONGQING YUANDA WATER SERVICE
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[0004] Chinese patent CN1884145 discloses a "patented mine water treatment process and mine water integrated treatment device", including coagulation sedimentation, adsorption sedimentation, and pH adjustment process steps. The equipment and operation process of this process are relatively complicated, and only suitable for For the treatment of mine water with l
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[0031] The mine water to be treated comes from a small coal mine. The mine water contains a lot of coal particles, organic matter, powder and other suspended solids and bacteria. The water quality is shown in Table 1:
[0032] Table 1: Raw water quality of mine water in a coal mine
[0033] water quality index
pH
Suspended matter content (mg / L)
Hardness (mg / L)
COD Cr (mg / L)
value
7.5
1000
120～260
70～100
[0034] The mine water is treated with the method of the present invention, and the process parameters of each step are shown in Table 2.
[0035] Table 2: each process parameter of specific embodiment of the present invention
[0036]
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The invention discloses a recycling and treating method for mine water containing suspended substances, which comprises the following steps of: (1) regulating water quantity by introducing the mine water into a regulating pond; (2) coagulateing and precipitating, carrying out flocculation reaction and precipitate separation in a compositive reaction pond to remove most suspended substances; (3) filtering, and introducing the solution into a clear water pond after filtration in a sand filter and sterilization with chlorine dioxide to obtain drinking water meeting drinking water standards. The invention is suitable for mine water containing more suspended substances and containing oil pollutant, removes the suspended substances at the removing rate higher than 98.5%, and has the advantages of simple equipment and operation process.
Description
technical field [0001] The invention relates to a water treatment method, in particular to a method for recycling mine water containing suspended matter Background technique [0002] Mine water is a pollution source with industry characteristics in the coal industry, with a large amount and a wide range. The annual discharge of mine water in my country's coal industry is about 2.5 billion m 3 . At the same time, workers in coal enterprises consume a lot of water for bathing and other domestic activities. If the mine water is properly treated and used as drinking water for coal enterprises, it will certainly alleviate the water pressure of coal enterprises and be conducive to the sustainable development of enterprises. [0003] According to the water quality characteristics of mine water, it is customary to divide mine water into 5 categories: clean mine water, high salinity mine water, acid mine water and mine water containing toxic and harmful elements. Mine water contai...
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Login to view more IPC IPC(8): C02F9/08C02F1/66C02F1/52C02F1/50C02F103/10
Inventor 何世德李锐张占梅刘启东
Owner CHONGQING YUANDA WATER SERVICE
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