A kind of advanced treatment process of landfill percolation concentrated liquid

A garbage infiltration and advanced treatment technology, applied in the direction of aerobic and anaerobic process treatment, bacteria, etc., can solve the problems of reduced treatment efficiency, high treatment cost, and large consumption of bacteria-containing sludge, so as to reduce demand, Effects of increasing the amount of regeneration and activity, and improving the efficiency of decomposition reactions

Inactive Publication Date: 2019-01-15
ZHONGYUAN ENGINEERING COLLEGE
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Problems solved by technology

However, this method consumes a large amount of bacteria-containing sludge, resulting in high treatment costs, and the treatment efficiency drops significantly in the later stages of the treatment cycle.

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  • A kind of advanced treatment process of landfill percolation concentrated liquid

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Embodiment Construction

[0020] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] like figure 1 As shown, the embodiment of the present invention provides a kind of landfill percolation concentrate advanced treatment process, comprising the following steps:

[0022] A. Put the concentrated landfill percolation solution into the first sedimentation tank for static precipitation for 3 to 5 hours; add precipitation promoters to the first sedimentation tank, and the weight ratio of the precipitation promoters to the concentrated landfill percolation solution is 1:35 , the precipitation promoter includes the following components,

[0023] 37wt% activated carbon, 10.5wt% disodium edetate, 5.7wt% aluminum trichloride, 4.4wt...

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Abstract

The invention discloses an advanced treatment process of refuse leachate and concentrated liquor. The process comprises the steps that A. the refuse leachate and concentrated liquor is put in a first settling tank to have static settlement for 3-5 hours; B. the refuse leachate and concentrated liquor subjected to settling is discharged into an anaerobic reaction tank to react for 4-8 hours; then the filtrate obtained is discharged into a buffer tank; C. the filtrate undergoes bacteria inactivation in the buffer tank and then is discharged into an aerobic reaction tank; D. the filtrate reacts in the aerobic reaction tank for 2-3 hours, then is filtered and is discharged into a second settling tank; E. the filtrate undergoes static settlement in the second settling tank for 1-2 hours, thus obtaining up-to-standard dischargable water. The process can achieve the effects of overcoming the deficiency of the prior art, reducing the consumption of bacteria-containing sludge and improving the treatment efficiency.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to an advanced treatment process for concentrated liquid of garbage percolation. Background technique [0002] The leachate of urban waste landfill has complex components and is recognized as one of the most difficult to treat high-concentration organic wastewater in the world. It is mainly manifested in high concentrations of BOD5 and CODcr, high ammonia nitrogen content, a considerable range of water quality and quantity fluctuations, and microbial nutrient elements. Disproportion, etc. Leachate is a secondary pollution source in the landfill process. If it is directly discharged into the environment without treatment, it will cause serious environmental pollution. In recent years, landfill leachate has caused serious pollution to groundwater, soil and surface water in waste sites. The control and treatment of landfill leachate is a key factor in ensuring the long-term...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C12N1/20
CPCC02F3/30C12N1/20
Inventor 龚为进刘玥魏永华郭丽娜李宾宾
Owner ZHONGYUAN ENGINEERING COLLEGE
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