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Immersed combustion treatment system for refuse leachate

A technology of landfill leachate and treatment system, which is applied in the field of high-concentration organic wastewater to achieve the effects of high heat utilization, increased heat transfer area, and fast heat transfer rate

Inactive Publication Date: 2018-10-02
BEIJING GREEN USE ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its large amount of membrane filtration concentrate has become an urgent problem to be solved.
In addition, CH from landfill sites 4 and CO 2 The composition of landfill gas is also a thorny issue in landfills

Method used

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  • Immersed combustion treatment system for refuse leachate
  • Immersed combustion treatment system for refuse leachate

Examples

Experimental program
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Effect test

Embodiment

[0028] figure 1 is a schematic diagram of a landfill leachate submerged combustion treatment system according to an embodiment of the present invention. Such as figure 1 As shown, the landfill leachate treatment system of the present invention may include three parts: a pretreatment part, a combustion evaporation separation part and an advanced treatment part.

[0029] The pretreatment part mainly includes a pretreatment tank and a flocculation reaction device. Such as figure 1 As shown, the landfill leachate to be treated first enters the pretreatment tank for treatment, wherein the landfill leachate to be treated may be, for example, membrane filtration concentrate. In the pretreatment tank, the landfill leachate can be pre-adjusted. For example, a neutralization dosing device can be installed to add acid-base neutralization reagents to the pretreatment tank, thereby adjusting the pH value in the pretreatment tank. For example, the pH value of sewage can be adjusted by a...

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Abstract

The invention discloses an immersed combustion treatment system for refuse leachate, which includes: a pretreatment part, which includes a pretreatment tank and a flocculation reaction apparatus communicated therewith; a combustion and evaporation part, which includes an immersed incinerator, a tubular condenser, and a concentrate press filter device, wherein the immersed incinerator is provided with a combustion chamber comprising a fuel gas inlet, a combustion-supporting gas inlet, and an igniter, a steam outlet is disposed on the upper end of the immersed incinerator and the bottom of the immersed incinerator is conical in shape and is provided with a concentrate discharge outlet, after treatment in the flocculation reaction apparatus, a fluid flows into the immersed incinerator, then the tubular condenser is connected to the immersed incinerator through the steam outlet and the concentrate press filter device is connected to the immersed incinerator through the concentrate discharge outlet; a deep processing part, which includes an alkaline gas washing tower, an acidic gas washing tower, and a Fenton reactor, wherein the alkaline gas washing tower is connected to the gas outletof the tubular condenser, the acidic gas washing tower is connected to the alkaline gas washing tower, and the Fenton reactor is connected to a condensate discharge outlet on the tubular condenser.

Description

technical field [0001] The invention relates to the field of high-concentration organic wastewater, in particular to a landfill leachate treatment system and method. Background technique [0002] The up-to-standard discharge of landfill leachate is one of the important indicators to measure whether a landfill is a sanitary landfill. Leachate is the product of gravity flow of liquid in a landfill, mainly from precipitation and the embedded water of the waste itself. Since many factors may affect the properties of the leachate during the flow of the liquid, including physical factors, chemical factors and biological factors, the properties of the leachate vary within a considerable range. Therefore, leachate treatment is extremely difficult, and pure biological treatment technology is difficult to meet the requirements of the standard. At present, most landfills have adopted physical and chemical pretreatment (coagulation sedimentation, ammonia nitrogen stripping, chemical o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10B01D53/78B01D53/42B01D53/40
CPCB01D53/40B01D53/42B01D53/78C02F1/001C02F1/02C02F1/048C02F1/5236C02F1/5281C02F1/56C02F1/66C02F1/722C02F1/725C02F9/00C02F2301/08C02F2305/026
Inventor 张肇强
Owner BEIJING GREEN USE ENVIRONMENTAL PROTECTION SCI & TECH
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