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MBR effluent purification system for landfill leachate treatment and purification method thereof

A landfill leachate and purification system technology, which is applied in the landfill leachate treatment purification system and its purification, MBR effluent water purification system and its purification field, which can solve the problem of substandard discharge of landfill leachate, large consumption of chemical agents, and treatment problems. Problems such as complex process, to achieve the effect of increasing operating profit, reducing operating costs, and shortening the process flow

Pending Publication Date: 2021-04-23
厦门水汇环境技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the defects of the existing landfill leachate treatment technology, such as complex treatment process, large consumption of chemical agents, high cost, substandard discharge of landfill leachate after treatment, etc., by adopting struvite method to recover ammonia nitrogen, electrolytic purification Combining with coagulation purification, learning from each other's strengths to make up for one's weaknesses, thus forming a purification system and purification method for MBR effluent of garbage seepage treatment

Method used

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  • MBR effluent purification system for landfill leachate treatment and purification method thereof
  • MBR effluent purification system for landfill leachate treatment and purification method thereof
  • MBR effluent purification system for landfill leachate treatment and purification method thereof

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Embodiment 1

[0058] The purification device for the MBR effluent treated by the landfill leachate in a certain city built by the production process of the present invention comprises a struvite ammonia nitrogen precipitation recovery device (100), an electrolytic purification device (200), and a coagulation precipitation purification device (300) and a reducing device (400) for eliminating residual chlorine.

[0059] Table 2. Inlet and outlet water quality indicators of MBR effluent design for landfill leachate treatment

[0060] serial number project MBR effluent index The water output index after treatment Removal rate (%) 1 Chroma 80 40 50.00 2 COD Cr (mg / L)

900 100 88.89 3 Total Nitrogen (mg / L) 650 40 93.85 4 Ammonia nitrogen (mg / L) 500 25 95.00 5 Total phosphorus (mg / L) 3.2 3 6.25

[0061] The purification device for the MBR effluent treated with the above landfill leachate is used to purify the MBR effluent treated...

Embodiment 2

[0092] The purification device for the MBR effluent treated by the landfill leachate in a certain city built by the production process of the present invention comprises a struvite ammonia nitrogen precipitation recovery device (100), an electrolytic purification device (200), and a coagulation precipitation purification device (300) and a reducing device (400) for eliminating residual chlorine.

[0093] Table 7. Inlet and outlet water quality indicators of MBR effluent design for landfill leachate treatment

[0094] serial number project MBR effluent index The water output index after treatment Removal rate (%) 1 Chroma 100 40 60.00 2 COD Cr (mg / L)

2000 100 95.00 3 Total Nitrogen (mg / L) 1200 40 96.67 4 Ammonia nitrogen (mg / L) 1000 25 97.50 5 Total phosphorus (mg / L) 5.0 3 94.00

[0095] The purification device for the MBR effluent treated with the above landfill leachate is used to purify the MBR effluent tr...

Embodiment 3

[0124] The purification device for the MBR effluent treated by the landfill leachate in a certain city built by the production process of the present invention comprises a struvite ammonia nitrogen precipitation recovery device (100), an electrolytic purification device (200), and a coagulation precipitation purification device (300) and a reducing device (400) for eliminating residual chlorine.

[0125] Table 12. Inlet and outlet water quality indicators of MBR effluent design for landfill leachate treatment

[0126] serial number project MBR effluent index The water output index after treatment Removal rate (%) 1 Chroma 60 40 33.33 2 COD Cr (mg / L)

1200 100 91.67 3 Total Nitrogen (mg / L) 1035 40 96.14 4 Ammonia nitrogen (mg / L) 850 25 97.06 5 Total phosphorus (mg / L) 3.7 3 18.92

[0127] The purification device of the MBR effluent treated with the above landfill leachate is used to purify the MBR effluent trea...

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Abstract

The invention discloses an MBR effluent purification system for landfill leachate treatment and a purification method thereof. The MBR effluent purification system comprises a struvite ammonia nitrogen precipitation recovery device for MBR effluent, an electrolytic purification device, a coagulating sedimentation purification device and a reduction device. MBR effluent obtained after landfill leachate treatment sequentially passes through the struvite method ammonia nitrogen removal precipitation recovery device, an electrolytic purification device, the coagulating sedimentation device and the reduction device, and the purified effluent reaches the standard of Standard for Pollutant Control of Domestic Refuse Landfill (GB16889-2008).

Description

technical field [0001] The invention relates to a purification system and a purification method for treating landfill leachate, in particular to a purification system and a purification method for MBR effluent treated by landfill leachate, and belongs to the field of environmental protection. Background technique [0002] Landfill leachate is the liquid seeping out of the landfill. It is a kind of organic wastewater with high ammonia nitrogen and high concentration that is difficult to treat. It mainly comes from the following three aspects: 1. Natural rainfall and runoff in the landfill; 2. The garbage itself 3. The water released due to the decomposition of microorganisms after the landfill; the precipitation in the landfill is the main part. The typical values ​​of pollutant content in urban landfill leachate are shown in Table 1. [0003] Table 1.1 Main components of general landfill leachate (except for pH and sensory indicators, the unit is mg / L) [0004] pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C01B25/45C02F103/06
CPCC02F9/00C01B25/45C02F2103/06C02F1/461C02F2001/46119C02F1/20C02F1/5236C02F1/66C02F1/56C02F1/70C02F2301/08
Inventor 谢小青戴兰华黄珍艺
Owner 厦门水汇环境技术有限公司
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