Garbage leachate treatment process

A technology for landfill leachate and treatment process, applied in the field of waste treatment, can solve the problems of high treatment cost, poor applicability, frequent cleaning, etc., and achieve the effects of reducing cleaning frequency, lightening burden, and reducing investment costs and operating costs.

Inactive Publication Date: 2016-02-24
江苏金恒环境科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of easy fouling and frequent cleaning in the prior art of simple MVC evaporation technology and the defects of high COD and high ammonia nitrogen wastewater treatment cost and poor applicability, thereby providing a Treatment process of landfill leachate

Method used

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  • Garbage leachate treatment process
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  • Garbage leachate treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 A treatment process for landfill leachate is shown, including transporting landfill leachate into a regulating tank to stabilize the water quality and quantity of the effluent from the regulating pond;

[0038] The landfill leachate flowing out of the regulating tank needs to be pretreated before entering the evaporation system for evaporation, such as figure 2 Shown is the process flow chart of pretreatment, and its process flow includes,

[0039] (1) The leachate from the regulating tank enters the anaerobic biological treatment unit to reduce the COD content of the anaerobic biological treatment effluent and reduce the load of subsequent operations; the anaerobic biological treatment unit is an upflow anaerobic sludge bed reactor (UASB) 1. It has the characteristics of simple operation, less residual sludge and lower cost. The UASB pump 17 transports the effluent of the regulating tank to the water distribution system at the bottom of the UASB rea...

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Abstract

The invention discloses a garbage leachate treatment process; a garbage leachate is treated by an adjusting pool, an anaerobic biological treatment unit, a minisize anaerobic-aerobic treatment unit, a membrane bioreactor and an evaporation system (MVC) in turn, and through evaporation, distilled water formed from water and ammonia reaches standards and is discharged after passing through a cation-anion resin exchange system; non-condensable gas reaches standards and is discharged after passing through a deodorization system, and a concentrate is discharged out of the evaporation system; the garbage leachate treatment process is respectively subjected to anaerobic biological treatment, minisize anaerobic-aerobic treatment and membrane bioreactor treatment before evaporation treatment, so as to greatly alleviate the operation burden of the evaporation system (MVC), relieve the fouling problem of the evaporation system (MVC) to a largest extent and reduce the frequency of cleaning; the garbage leachate treatment process is applicable to treatment of conventional high-COD and high-NH3-N garbage leachates, at the same time, is applicable to treatment of leachates with different landfill ages or different types through adjustment of related process parameters, and effectively relieves the burden of process operation.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a treatment process for garbage leachate. Background technique [0002] Landfill leachate refers to the water contained in the garbage itself in the landfill, the rain and snow water and other water entering the landfill, deducting the saturated water holding capacity of the garbage and the covering soil, and passing through the garbage layer and the covering soil. a high concentration of organic wastewater; also includes water seepage from accumulated waste intended for incineration. Landfill leachate is a widespread secondary pollution in the process of municipal solid waste treatment, and it is one of the urgent problems to be solved in the construction and operation of landfills and waste incineration plants. The water quality of landfill leachate is complex and the concentration of pollutants is high. For example, the content of COD is as high as 30000-70000mg / l, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/12C02F1/42C02F3/1268C02F3/2846C02F3/302C02F2101/16C02F2101/20C02F2103/06C02F2301/08C02F2303/02
Inventor 霍开颜
Owner 江苏金恒环境科技有限公司
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