A zero-discharge treatment system for landfill leachate
A technology of landfill leachate and treatment system, applied in the field of landfill leachate zero discharge treatment system, can solve the problems of unbalanced proportion of nutrient elements, high operating costs, lack of phosphorus elements, etc., and achieve stable effluent water quality, reduce operating costs, and reduce pollution. The effect of the amount of mud
Active Publication Date: 2018-07-03
BEIJING ORIGINAL ENVIRONMENT INVESTMENT MANAGEMENT CO LTD
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] 3. Imbalance in the ratio of nutrient elements: the concentration of ammonia nitrogen in the leachate is high, but the phosphorus element is deficient
[0006] The water quality of landfill leachate is quite complex, generally containing high concentrations of organic matter, heavy metal salts, SS and ammonia nitrogen. Landfill leachate not only pollutes soil and surface water sources, but also pollutes groundwater. Landfill leachate is generally treated with biological methods, but the treatment The effect is not very ideal, and the operating cost is relatively high
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
[0038] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] Please refer to Figure 1-2 , a zero-discharge treatment system for landfill leachate provided by the present invention includes a grid sump 1, and a fine grid is arranged at the water inlet end of the sump to form the grid sump 1 to remove large particles of impurities and prevent equipment from clogging And affect the effect of sewage treatment.
[0040] The water outlet of the grid sump 1 is connected to the water inlet of the adjustment tank 2 through a pipeline and a water pump; the leachate is pumped into the adjustment tank, and a homogeneous quantity is obtained in the adjustment tank. Perforated aeration pipes (not shown in the figure) are used to stir in the pool to prevent sludge from settling.
[0041] The water...
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 zero emission treatment system for landfill leachate. The system comprises a grating water collecting tank, wherein a water outlet of the grating water collecting tank is connected to a water inlet of an adjusting tank through a pipeline and a water pump; a water outlet of the adjusting tank is connected to a water inlet of the hydrolysis acidification tank through a pipeline and a water pump; a water outlet of the hydrolysis acidification tank is connected to a water inlet of an A2 / O reactor through a pipeline and a water pump, and a water outlet of the A2 / O reactor is connected with a water inlet of an ultrafiltration apparatus through a pipeline and a water pump; a water outlet of the ultrafiltration apparatus is connected to a water inlet of forward osmosis equipment through a pipeline and a water pump; a water outlet of the forward osmosis equipment is connected to a water inlet of a reverse osmosis equipment through a pipeline; a water outlet of the reverse osmosis equipment is connected to a water inlet of a disinfection pool through a pipeline. The system is simple in structure, is environmentally friendly and saves energy, zero emission of the landfill leachate is realized, and the cost is reduced.
Description
technical field [0001] The invention relates to the field of wastewater treatment, in particular to a zero-discharge treatment system for landfill leachate. Background technique [0002] Landfill leachate has the characteristics of high pollution concentration, complex composition, and extremely unstable changes. Its main characteristics are as follows: [0003] 1. The water quality fluctuates greatly, and the water quality of leachate changes greatly with time. The water quality of leachate changes, and the daily variation coefficient is generally as high as 200% and 300%, and the water quality of old landfills changes more greatly with time. The water quality of leachate also varies greatly in different landfill periods. Generally, the leachate at the initial stage of landfill is black, with good biodegradability and easy to handle; however, with the prolongation of landfill time, the leachate gradually turns brown, and the biodegradability becomes worse, and the concentr...
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 Patents(China)
IPC IPC(8): C02F9/14C02F103/06
CPCC02F1/001C02F1/048C02F1/441C02F1/444C02F1/445C02F3/28C02F3/30C02F9/00C02F2103/06Y02E50/30
Inventor 周玉薛晓霞
Owner BEIJING ORIGINAL ENVIRONMENT INVESTMENT MANAGEMENT CO LTD