Percolate treatment method and device

A treatment method and technology of a treatment device, which is applied in the field of leachate treatment and leachate treatment equipment, can solve the problems of low total nitrogen removal rate, achieve the effect of strengthening the treatment effect, improving the removal rate, and promoting the decomposition of organic matter

Inactive Publication Date: 2013-10-09
苏州市环境卫生管理处 +1
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Problems solved by technology

However, due to the main anaerobic reaction and part of the aerobic reaction inside the bed, while effectively degrading organic matter, most of the ammonia nitrogen is converted into nitrate nitrogen and nitrite nitrogen and accumulates, and the removal rate of total nitrogen is low.

Method used

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  • Percolate treatment method and device
  • Percolate treatment method and device

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0033] ginseng figure 1 , to introduce a specific embodiment of the leachate treatment method of the present invention. In this embodiment, the method includes the following steps:

[0034] S1. Pass the leachate through the coarse filter material for pretreatment.

[0035] The coarse filter material here is mineralized garbage with a particle size range of 20mm~40mm, and the requirement of the leachate is that the carbon-nitrogen ratio>4 and the COD concentration range is 5000~10000mg / L.

[0036] S2. Post-treat the leachate treated in step S1 through the fine filter material modified by iron powder ...

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Abstract

The invention discloses a percolate treatment method and a percolate treatment device. The percolate treatment method comprises the following steps of: S1, pretreating percolate by virtue of a rough filtration material; and S2, carrying out aftertreatment on the percolate treated by the step S1 by virtue of iron powder and a fine filtration material modified by activated carbon particles. According to the percolate treatment method, the percolate is treated by the rough filtration material as well as the iron powder and the fine filtration material modified by the activated carbon particles, ferric carbon internal electrolysis is carried out between the iron powder and the activated carbon particles, further a small current is produced, decomposition of a refractory organic matter is promoted, endogenous respiration of microorganisms in the filtration materials is enhanced, treatment effect of mineralized refuse for treating the percolate as a filtration material is further enhanced, and removal rate of total nitrogen is increased.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a leachate treatment method and a leachate treatment device corresponding to the method. Background technique [0002] Leachate is a secondary pollutant produced during the landfill process of domestic waste. Its water quality and quantity vary greatly and are greatly affected by factors such as waste composition, landfill time, and landfill methods. The leachate contains a variety of complex pollutants, such as high concentrations of organic matter (COD 2000~50000 mg / L), high ammonia nitrogen (800~3500 mg / L), various heavy metals (Zn, Cr, Pb, Ni, Cu etc.) and inorganic salt ions (Ca 2+ , Mg 2+ 、K + 、Na + , Cl - , SO2- 4, etc.), which brings difficulty to the treatment of leachate. [0003] The existing biological pretreatment technologies for leachate include aerobic (such as oxidation pond), anaerobic (such as UASB, EGSB, etc.) technology, membran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F9/14
Inventor 何晟牛静赵由才夏金雨仇庆春黄嵘杭奇江赵俊孙雨清吕国庆
Owner 苏州市环境卫生管理处
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