Landfill leachate concentrated solution adsorption, fermentation, dehydration and solidification process

A landfill leachate and landfill leachate technology are applied in the field of landfill leachate concentrated liquid adsorption, fermentation, dehydration and solidification process, which can solve the problems of increased processing cost, complicated fixed assets investment equipment, and the government and enterprises cannot afford it, and achieve a good economy. Benefit and social benefits, improve the environmental protection standard water effluent rate, and improve the effect of permeate concentration

Inactive Publication Date: 2020-06-05
安徽冠臻环保科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

The current treatment method is to return the concentrated liquid to the landfill and mix it with the newly generated landfill leachate for repeated treatment. In fact, as time goes by, the concentration of landfill leachate will become higher and higher, membrane filtration will become more and more difficult, and the effluent will be discharged up to the standard. The rate will continue to decrease, and the processing cost will continue to increase
[0003] The current method of advanced treatment of concentrated liquid in China is: use a denser and finer membrane, increase the pump pressure and then filter, but in the end there is still a few percent of the concentrated liquid that needs to be processed. The treatment method is drying or decompression heat pump evaporation. Although this method can finally deal with the concentration of landfill leachate, the government and enterprises cannot afford it due to the complexity of fixed asset investment equipment, repeated treatment, high energy consumption, and no added value.

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  • Landfill leachate concentrated solution adsorption, fermentation, dehydration and solidification process

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Embodiment Construction

[0031] In order to make the implementation technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific illustrations.

[0032] Such as figure 1 As shown, a solidification process of adsorption, fermentation, dehydration and solidification of landfill percolation concentrate includes coarse filtration, fine filtration, mixing, fermentation, granulation, and carbonization steps. By adding biomass straw and using microbial decomposing agent to ferment and naturally dehydrate, it can produce National standard microbial organic fertilizer, carbon-based compound fertilizer, biomass fuel and activated carbon for sewage treatment. To achieve the purpose of treating waste with waste and turning waste into treasure.

[0033] Its main steps are as follows:

[0034] Step 1, coarse filtration: first add flocculant and thickener to the landfill leachate, and then...

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Abstract

The invention provides a landfill leachate concentrated solution adsorption, fermentation, dehydration and solidification process. The process comprises the steps of coarse filtration, fine filtration, mixing, fermentation, granulation and carbonization. Biomass straws are added, a microbial decomposition agent is used for fermentation and natural dehydration, and microbial organic fertilizer, carbon-based compound fertilizer, biomass fuel and activated carbon special for sewage treatment meeting the national standards can be produced. The purposes of treating waste with waste and turning waste into wealth are achieved. The process is used for reduction, harmlessness and resourceful treatment on hazardous wastes. The process accords with national industrial policies of renewable resource utilization, circular economy and environmental protection, and has good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a process for adsorption, fermentation, dehydration, and solidification of concentrated garbage percolation liquid. Background technique [0002] The landfill percolation concentrate is the concentrated product of the waste fermentation liquid in the waste pond after membrane filtration. The concentrated solution accounts for about 30% of the total stock solution. The current treatment method is to return the concentrated liquid to the landfill and mix it with the newly generated landfill leachate for repeated treatment. In fact, as time goes by, the concentration of landfill leachate will become higher and higher, membrane filtration will become more and more difficult, and the effluent will be discharged up to the standard. The rate will continue to decrease, and the processing cost will continue to increase. [0003] The current method of advanced treatment of conc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C10L5/46C10L5/44C02F1/28B01J20/20B01J20/30C05D9/00C01B32/324C02F103/06
CPCB01J20/20C02F1/001C02F1/283C02F1/286C02F1/44C02F1/52C02F9/00C02F2103/06C02F2301/08C05D9/00C10L5/445C10L5/46C01B32/324Y02E50/10Y02E50/30
Inventor 曾昌伍张晓看
Owner 安徽冠臻环保科技有限公司
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