Method for treating leachate in pile body of garbage landfill
A technology for landfill and landfill leachate, which is applied in the field of environmental engineering, can solve the problems of poor biodegradability of leachate, waste of land resources, and high transportation costs, and saves sludge return equipment, land occupation, and technology. simple effect
Inactive Publication Date: 2017-10-24
BEIJING HAOHAI TIANJI TECH +2
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The sewage treatment site outside the landfill is likely to cause waste of land resources and soil pollution. The recharge technology will make the biodegradability of the leachate worse and worse, and the TDS content will become higher and higher.
The transportation cost of transporting to the sewage treatment plant for treatment is relatively high, and problems such as odor and spillage are likely to occur on the way
At present, the more popular domestic treatment process is the combination of membrane bioreactor and membrane advanced treatment, but this method needs to set up a sewage treatment site outside the landfill or transport it to a sewage treatment plant, which has certain requirements for the selection of the site
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below in conjunction with accompanying drawing.
[0025] 1. If figure 1 As shown, on the whole, the treatment device installed in the garbage dump includes a regulating tank (1), a slag removal filter layer (2), a coagulation sedimentation (3), an adsorption treatment (4), an SBR1 reaction zone (5), Microbial treatment (6), SBR2 reaction zone (7), leachate collection pipe (8), contact valves at each pipeline port (9), detection sampling port (10), gas pipeline interface (11), gas pipeline (12) and sump pump (13).
[0026] 2. Taking a landfill of 400 m×200 m×20 m as an example, the daily processing capacity of each equipment is 600 m 3 / d for design, the bottom layer of the regulating pool adopts HDPE geomembrane anti-seepage structure, the hydraulic retention time is set to T=2 h, and the flow rate Q=600 m 3 / d=25m 3 / h, the effective volume of the regulating pool is V=QT=25 m 3 . Take the length and width of the poo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for treating leachate in a pile body of a garbage landfill and belongs to the technical field of environmental engineering. According to the method disclosed by the invention, gradient type pipeline distribution is carried out in the pile body of the garbage landfill and a pipeline is internally provided with horizontal and vertical reaction regions; the garbage leachate is treated through a leachate pH (Potential of Hydrogen) regulation region, a horizontal coagulation sedimentation region, a vertical microorganism treatment reaction region, a horizontal SBR (Sequencing Batch Reactor) process reaction region, a vertical adsorption region and a water outlet region. By adopting the method disclosed by the invention, technical difficulties in a conventional leachate treatment process can be avoided and the method is especially key for treatment of the leachate treatment of closed old garbage landfills.
Description
technical field [0001] The invention discloses a method for treating leachate in a garbage landfill pile, and belongs to the technical field of environmental engineering. Background technique [0002] With the continuous expansion of cities and the gradual improvement of people's living standards, environmental pollution issues have attracted more and more attention, especially the large amount of urban domestic garbage, and the difficulty of garbage disposal is also increasing. At present, domestic waste disposal methods mainly include landfill, composting and incineration, and more than 70% of waste is landfilled. Landfill has become a major way of waste disposal. However, during the landfill process and after the landfill closure, landfill leachate will be produced. Landfill leachate is a kind of high-concentration organic wastewater with complex components, and contains a variety of toxic substances and carcinogens. Leachate has become the secondary pollution of landfil...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/06
CPCC02F1/001C02F1/283C02F1/52C02F3/1263C02F3/34C02F9/00C02F2103/06C02F2301/08
Inventor 杜文利姚小芳
Owner BEIJING HAOHAI TIANJI TECH