Fresh leachate treatment combined system and process for household garbage transfer station

A technology of domestic waste and combined system, which is applied in the field of fresh leachate treatment combined system of domestic waste transfer station, and achieves the effects of good connection, small total area and less mud production.

Pending Publication Date: 2021-03-30
SHANGHAI ENVIRONMENTAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Efficiently remove the organic pollutants in the leachate and achieve the effect of denitrification, so that the effluent water quality can meet the "Water Quality Standard for Sewage Discharge into Urban Sewers" (GB / T 31962-2015), effectively solve the seepage of garbage transfer stations in the field of water pollution control Filtrate Disposal Issues

Method used

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  • Fresh leachate treatment combined system and process for household garbage transfer station

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Effect test

Embodiment 1

[0054] The fresh leachate of the transfer station comes from a waste transfer station in eastern China. The fresh concentrate produced by it has a COD of 26000-32000mg / L, a total phosphorus of 95-135mg / L, and a total nitrogen of 230-350mg / L. Such as figure 1 As shown, the fresh leachate waste water enters the adjustment tank 101 intermittently through the pipeline, the water volume is adjusted in the adjustment tank 101, and then filtered through the grid 102, and the filtered liquid is pumped into the river sand filter reactor unit 2 by the lift pump A6 The upper end of the filter reactor. The leachate is fed from the top of the filter reactor, and the perforated pipe is used for water distribution with large resistance. The leachate is treated through the filtration of river sand, and the filtered liquid is discharged at the bottom of the filter reactor. The clear liquid after sand filtration is pumped into the upper end of the three bioreactors 301 of the parallel refracto...

Embodiment 2

[0057] see figure 1 Compared with Example 1, this embodiment has the following differences: the biochemical filter filler in the parallel refractory living source filler bioreactor unit 3 is mineralized garbage, animal aggregate, waste fabric, foam concrete gravel, pebbles, etc. Material. After the container bioreactor filled with refractory living source waste has been running for a period of time, due to the metabolism of microorganisms in the filler, the original degradable organic matter will be degraded into small molecular substances, and the filler in the container will settle. If a phenomenon occurs, the foam concrete can be directly added to the original height above the container reactor to ensure that the treatment height remains unchanged.

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Abstract

The invention relates to a fresh leachate treatment combined system and process suitable for a household garbage transfer station. The system comprises an adjusting pool and grid unit (1), a river sand filtering reactor unit (2), a parallel degradation-resistant living source filler bioreactor unit (3) and a nanofiltration treatment unit (5) which are sequentially connected through pipelines. Compared with the prior art, the fresh leachate treatment combined system of the invention has the advantages that organic pollutants in leachate can be efficiently removed, the denitrification effect isachieved, the effluent quality reaches the wastewater quality standards for discharge to municipal sewers (GB / T 31962-2015), the problem of leachate treatment of a garbage transfer station in the field of water pollution control is effectively solved, the cost is low, the occupied area is small, and the problem of leachate treatment of the garbage transfer station in the field of water pollution control is effectively solved.

Description

technical field [0001] The invention relates to the field of water pollution control, in particular to a fresh leachate treatment combined system and process suitable for domestic garbage transfer stations. Background technique [0002] The municipal solid waste transfer station plays a very important role in the urban waste management system. The landfill leachate generated during the compression process of the transfer station waste has a significant impact on the receiving water body or sewage pipeline, and has an impact on the surrounding environment. The sewage produced during the garbage compression process belongs to the original landfill leachate, which is mostly produced on the same day. Due to the short stacking time and fermentation time, the water quality of the landfill leachate is very different. Landfill leachate has the characteristics of high COD and BOD concentrations, large changes in water quality and quantity, high ammonia nitrogen content, and imbalance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30C02F103/06
CPCC02F9/00C02F1/001C02F1/442C02F3/00C02F2001/007C02F2101/30C02F2103/06
Inventor 赵学鹏何恩天曲波王伟廷潘勇周涛赵由才
Owner SHANGHAI ENVIRONMENTAL IND
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