Coal mine sewage treating and recycling technology

A technology for sewage treatment and coal mines, applied in water/sewage treatment, neutralized water/sewage treatment, water/sewage multi-stage treatment, etc. With the effect of sufficient reaction, stable effluent quality and high impact load resistance

Inactive Publication Date: 2016-04-06
WUZHOU HUAHONG SEWAGE TREATMENT CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the treatment method currently used in China is still a traditional process. Although this process is effective in treating reused water, the process is backward, the e

Method used

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  • Coal mine sewage treating and recycling technology

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[0021] The working principle of the present invention will be described below with reference to the drawings and embodiments.

[0022] Such as figure 1 As shown, in the coal mine sewage treatment and reuse process of the present invention, the sewage enters the high-level sedimentation tank 1 to balance the water quality, then enters the clean water tank for flocculation and sedimentation, then enters the intermediate aeration tank 7 for oxygenation and aeration, and finally enters the manganese sand filter Treated by the device 8, the effluent reaches the standard for reclaimed water.

[0023] The specific process steps are as follows:

[0024] 1) Balanced water quality: Sewage enters the high-level sedimentation tank 1 to initially settle impurities such as large particles of sediment.

[0025] When the sewage is pumped from the mine to the water purification station, the water quality fluctuates greatly. At this time, the sewage contains a large amount of easy-settling sand partic...

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Abstract

The invention provides a coal mine sewage treating and recycling technology. The coal mine sewage treating and recycling technology includes the steps that sewage enters a high-position settling pond for water quality balancing, then enters a water purifying pond for flocculating settling, enters a middle aeration tank for oxygenation aeration, and finally enters a manganese sand filter for treatment, and outlet water meets the recycled water reusing standard. The coal mine sewage treating and recycling technology has the advantages that the sewage load rate is high, impacting resistant loads are high, and the inlet water is not limited; the sewage and a coagulant are sufficiently mixed and reacted, and the quality of the outlet water is stable; the manganese sand filter is additionally arranged, and therefore metal ions such as iron and manganese in the sewage can be better treated; the outlet water meets the recycled water reusing standard and can be used as fire protection water or directly used as other kinds of production water such as coal mine spraying water.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a coal mine sewage treatment and reuse process. Background technique [0002] Coal accounts for more than 70% of my country's energy structure. Mining coal pollutes the groundwater with good water quality. A large amount of coal powder, rock dust, suspended solids, artificial pollution and microorganisms enter the water. Some coal mine wastewater contains suspended solids and chemical requirements. Oxygen, sulfide and total hardness are higher. Therefore, if a large amount of sewage exceeding the standard is discharged directly without treatment, it will cause serious pollution to the environment and cause a lot of waste of water resources. The water quality of coal mine sewage is mainly SS, COD, chromaticity, etc. exceeding the standard, petroleum slightly exceeding the standard, and iron and manganese plasma exceeding the standard. It brings great difficulties to the selection ...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/5236C02F1/56C02F1/66C02F1/725C02F2001/007C02F2301/08
Inventor 林金华林泰成
Owner WUZHOU HUAHONG SEWAGE TREATMENT CO LTD
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