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Method and device for making drinking water by coal mine water

A technology for drinking water and well water, applied in chemical instruments and methods, adsorption water/sewage treatment, light water/sewage treatment, etc., can solve the problems of no treatment measures, low fresh water recovery rate, etc., and reduce the water intake load , The effect of improving the recovery rate

Inactive Publication Date: 2012-09-19
杭州美亚水处理科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the concentrated water in the system, there are no good treatment measures, and the recovery rate of fresh water is not very high

Method used

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  • Method and device for making drinking water by coal mine water
  • Method and device for making drinking water by coal mine water
  • Method and device for making drinking water by coal mine water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The method for producing drinking water from coal well water comprises the following steps in turn:

[0033] a. The raw water of coal well water flows through adding CaCl 2 The clarifier, the fluoride and sulfate in the raw water and the Ca in the clarifier 2+ A chemical reaction occurs and CaF is precipitated 2 and CaSO 4 ;

[0034] b. The effluent from the clarifier is pumped into the manganese sand filter together with the coagulant, and the Fe in the water 2+ and Mn 2+ Under the catalysis of manganese sand, Fe is precipitated 3+ and Mn 4+ ;

[0035] c. The effluent of the manganese sand filter is subjected to ultrafiltration treatment to remove bacteria and viruses;

[0036] d. The fresh water after ultrafiltration is then subjected to nanofiltration treatment to further remove Fe 2+ , Mn 2+ , Ca 2+ and Mg 2+ , and F - and Cl - .

[0037] High salinity coal well water is treated by the above method, metal salts such as iron and manganese, fluoride, su...

Embodiment 2

[0042] The method for producing drinking water from coal well water comprises the following steps in turn:

[0043] a. The raw water of coal well water flows through adding CaCl 2 The clarifier, the fluoride and sulfate in the raw water and the Ca in the clarifier 2+ A chemical reaction occurs and CaF is precipitated 2 and CaSO 4

[0044] b. The effluent of the clarification tank flows through the inclined tube sedimentation tank, and the cinder and suspended matter are precipitated;

[0045] c. The effluent from the inclined tube sedimentation tank is collected into the raw water tank for re-sedimentation;

[0046] d. The effluent of the raw water tank is pumped into the manganese sand filter together with the coagulant, and the Fe in the water 2+ and Mn 2+ Under the catalysis of manganese sand, Fe is precipitated 3+ and Mn 4+ ;

[0047] e. The effluent of the manganese sand filter is subjected to ultrafiltration treatment to remove bacteria and viruses;

[0048] f....

Embodiment 3

[0055] A device for producing drinking water from coal well water, including pipelines, which are arranged sequentially from the water inlet to the water outlet: clarifier 1, inclined tube sedimentation tank 2, raw water tank 3, booster pump 4, manganese sand filter Device 5, activated carbon filter 6, precision filter 7, ultrafilter 8, high pressure pump 9, nanofilter 10, drinking water tank 11, ultraviolet germicidal lamp 12 and microporous filter 13, described ultrafilter 8 and nanofilter Concentrated water outlets of the filter 10 are respectively provided with return pipelines 14 connected to the clarifier 1 . The filtration accuracy of the precision filter 7 is 5 μm; the filtration accuracy of the microporous filter 13 is 1 μm.

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Abstract

The invention discloses a method and a device for making drinking water by coal mine water, which relates to a waste water processing method and device. The method orderly comprises the following steps: a) causing raw coal mine water to flow through a clarifier added with CaCl2; b) pumping outlet water of the clarifier and coagulant into a manganese ore filter; c) carrying out the ultrafiltration on the outlet water of the manganese ore filter; and d) processing the nanofiltration plain water after the ultrafiltration. The device comprises a pipeline, wherein the clarifier, an inclined pipe sedimentation tank, a raw water tank, a booster pump, the manganese ore filter, an active carbon filter, a precision filter, an ultrafilter, a high-pressure pump, a nanofilter, a drinking water tank, a ultraviolet sterilization lamp and a microporus filter are orderly arranged from a water inlet end to a water outlet end of the pipeline, and the concentrated water outlet ends of the ultrafilter and the nanofilter are respectively provided with backflow pipelines connected with the clarifier. According to the method and the device, metal salt such as iron, manganese and the like exceeding the standard as well as fluoride, sulphate and the like can be removed, and thus the fresh water recovering rate is enhanced to the maximum extent.

Description

technical field [0001] The invention relates to a wastewater treatment method and device, in particular to a method and device for producing drinking water from coal well water. Background technique [0002] Coal well water refers to the water flowing into the mine from various sources during the coal mining process, or the water flowing through the mine drainage system. At present, the lack of drinking water resources is a worldwide problem. For coal mining areas, on the one hand, a large amount of discharge from underground mines causes waste of water resources and environmental pollution. On the other hand, drinking water in mining areas is seriously crisis. Most of the coal mining areas in my country are severely water-scarce areas. The advanced treatment of coal well water as drinking water can not only greatly alleviate the environmental pollution of coal well water, but also open up new water sources for coal mining areas, and greatly alleviate the pollution of minin...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F9/08C02F1/52C02F1/44C02F1/32C02F1/28
Inventor 徐竹群
Owner 杭州美亚水处理科技有限公司
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