Village and town refuse transfer station leachate integrated treatment method and device

A treatment method and technology of treatment device, which are applied in the fields of filtration treatment, anaerobic digestion treatment, chemical instruments and methods, etc., can solve the problems of small amount of leachate treatment, and achieve the effects of small footprint, simple operation and easy management.

Pending Publication Date: 2018-12-25
武汉天源环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes an integrated treatment method and device for leachate in township garbage transfer stations, which effectively solves the problem of small amount of leachate treatment in township garbage transfer stations, and adopts a biochemical combination treatment method to treat leachate. Solve the problem of advanced treatment of landfill leachate

Method used

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  • Village and town refuse transfer station leachate integrated treatment method and device
  • Village and town refuse transfer station leachate integrated treatment method and device
  • Village and town refuse transfer station leachate integrated treatment method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The leachate water quality of the garbage transfer station was analyzed to determine the influent water quality analysis data as shown in Table 1:

[0045] Table 1 Influent water quality

[0046]

[0047] S1, collect the leachate from the garbage transfer station into the flocculation and sedimentation tank 1, check the pH value with a pH meter, add acid or lye, adjust the pH to 7.0, and add 5L / m based on the configuration mass concentration of 0.2%. 3 PAC; add 5L / m based on 10% mass concentration 3 The PAM is flocculated and precipitated for 3 hours, and the generated sludge is collected to the sludge thickening device 8 for further processing. After testing, COD at this stage cr The removal rate is 18%, BOD 5 The removal rate was 10%, and the SS removal rate was 45%. The sludge generated in the flocculation sedimentation tank 1 is collected to the sludge thickening device 8 for further treatment.

[0048] S2, import the supernatant of the flocculation sediment...

Embodiment 2

[0055] The leachate water quality of the garbage transfer station was analyzed to determine the influent water quality analysis data as shown in Table 2:

[0056] Table 2 Influent Water Quality

[0057]

[0058] S1, collect the leachate from the garbage transfer station into the flocculation sedimentation tank 1, check the pH value with a pH meter, add acid or lye, adjust the pH to 8.0, and add 10L / m based on the configuration mass concentration of 0.2% 3 PAC; add 10L / m on the basis of 10% of the configured mass concentration 3 The PAM is flocculated and precipitated for 4 hours, and the generated sludge is collected to the sludge thickening device 8 for further processing. After testing, COD at this stage cr The removal rate is 22%, BOD 5 The removal rate was 15%, and the SS removal rate was 55%. The sludge generated in the flocculation sedimentation tank 1 is collected to the sludge thickening device 8 for further treatment.

[0059] S2, import the supernatant of the...

Embodiment 3

[0066] The leachate water quality of the garbage transfer station was analyzed to determine the influent water quality analysis data as shown in Table 3:

[0067] Table 3 Influent Water Quality

[0068]

[0069] S1, collect the leachate from the garbage transfer station to the flocculation and sedimentation tank 1, check the pH value with a pH meter, add acid or lye, adjust the pH to 9.0, and add 15L / m based on the configuration mass concentration of 0.2%. 3 PAC; add 15L / m on the basis of 10% of the configured mass concentration 3 The PAM is flocculated and precipitated for 5 hours, and the generated sludge is collected to the sludge thickening device 8 for further processing. After testing, COD at this stage cr The removal rate is 20%, BOD 5 The removal rate was 10%, and the SS removal rate was 50%. The sludge generated in the flocculation sedimentation tank 1 is collected to the sludge thickening device 8 for further treatment.

[0070] S2, import the supernatant of ...

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Abstract

The invention provides a village and town refuse transfer station leachate integrated treatment method and device. By the aid of an integrated process, treatment amount and treatment time can be flexibly adjusted according to the leachate amount of a small refuse transfer station, a hydrolytic acidification system, an MBR (membrane bio-reacting) system and a Fenton oxidation system are combined, so that biodegradation and chemical oxidation are combined, process cost is reduced, organic matters are firstly degraded by the aid of microorganisms, and macromolecular hard-degraded organic mattersare degraded into CO2 and H2O by the aid of OH with strong oxidizing property, so that refuse leachate is fundamentally and deeply treated.

Description

technical field [0001] The invention relates to the field of high-concentration wastewater treatment, in particular to an integrated treatment method and device for leachate of township garbage transfer stations. Background technique [0002] In 2018, my country carried out the collection, transfer and disposal of domestic waste in townships and rural areas nationwide, and established a waste treatment and transfer system of "household collection, village collection, township transfer, and county treatment". Domestic waste in rural areas is less produced and widely distributed. In order to effectively collect domestic waste in towns and villages, small waste transfer stations have been built in each town. The leachate produced by the transfer station consists of two parts, one is the leachate raw liquid produced by the compression of domestic waste, and the other is the ground flushing sewage in the operation area. Due to the scattered living of residents in rural areas, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
CPCC02F9/00C02F2001/007C02F2101/30C02F1/66C02F1/56C02F1/5236C02F1/001C02F3/302C02F3/28C02F3/1268C02F1/722C02F2305/026C02F2301/08
Inventor 黄开明李红冷超群贺建平丁凤友
Owner 武汉天源环保股份有限公司
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