Landfill leachate treatment method

A technology of landfill leachate and a treatment method, which is applied in the field of landfill leachate treatment, can solve the problems of increasing difficulty in leachate treatment, increasing the dosage of various chemicals, and increasing operating costs, so as to ensure that the effluent quality meets the standard and reduce the number of chemicals. The effect of dosage and operation cost reduction

Active Publication Date: 2019-08-13
武汉天源环保股份有限公司
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing domestic waste landfill leachate treatment mostly adopts the "biochemical + membrane" treatment process, but with the increase of landfill years in recent years, the concentration of ammonia nitrogen and total nitrogen in landfill leachate has increased year by year, and the biochemical properties of the landfill have increased year by year. The increase in the number of years decreases year by year, the C / N is seriously out of balance, and the difficulty of leachate treatment is increasing. In order to make the total nitrogen effluent reach the standard and continue to operate stably, it is necessary to increase the dosage of various chemicals, and the operating cost is greatly increased.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Landfill leachate treatment method
  • Landfill leachate treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 An embodiment of the present invention provides a landfill leachate treatment system, including a biochemical treatment mechanism 100, an advanced treatment mechanism 200, and a resin treatment mechanism 300. Along the leachate flow direction, the biochemical treatment mechanism 100, the advanced treatment mechanism 200 and the The resin processing mechanisms 300 are connected sequentially.

[0028] Existing biochemical treatment mechanisms 100 are applicable to this embodiment. As a preferred embodiment, such as figure 1 , the biochemical treatment mechanism 100 includes at least one stage of denitrification-nitrification units; when the denitrification-nitrification units have multiple stages, each of the denitrification-nitrification units is connected in series. The denitrification-nitrification unit is a conventional processing unit in the field, including a denitrification unit and a nitrification unit, and there is a mixed liquid return channel be...

Embodiment 2

[0066] like figure 1 , the embodiment of the present invention provides a landfill leachate treatment method, comprising the following steps:

[0067] S1, performing at least one denitrification-nitrification treatment on the leachate;

[0068] S2, the leachate after denitrification-nitration treatment is treated by tubular membrane filtration;

[0069] S3, the tubular membrane effluent is further treated by membrane filtration;

[0070] S4, using the resin adsorption method to perform denitrification treatment on the filtrate after the advanced membrane filtration treatment to obtain the standard discharge liquid.

[0071] Among them, the above-mentioned denitrification-nitration treatment steps, tubular membrane filtration treatment steps, membrane filtration advanced treatment steps and resin adsorption steps have corresponding content descriptions in the above-mentioned embodiment one, and can refer to the relevant content in the above-mentioned embodiment one , which w...

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

No PUM Login to view more

Abstract

The invention relates to a landfill leachate treatment method. The method includes the following steps of S1, conducting at least one time of denitrification-nitrification treatment on leachate; S2, filtering the leachate obtained after the denitrification-nitrification treatment through a tubular film; S3, conducting film filtering deep treatment on the water output by the tubular film; S4, conducting denitrification treatment on filtrate obtained after the film filtering deep treatment through a resin adsorption method to obtain up-to-standard discharge liquid. By means of the landfill leachate treatment method, the resin adsorption treatment step is added in the conventional landfill leachate treatment process, the aim of removing the total nitrogen in the output water can be realized,it is ensured that the water quality of the output water is up to standard, and the environmental pollution risk is avoided; the agent dosage of a leachate biochemical treatment mechanism is reduced,and the operation cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for treating landfill leachate. Background technique [0002] The existing domestic waste landfill leachate treatment mostly adopts the "biochemical + membrane" treatment process, but with the increase of landfill years in recent years, the concentration of ammonia nitrogen and total nitrogen in landfill leachate has increased year by year, and the biochemical properties of the landfill have increased year by year. The increase in the number of years decreases year by year, the C / N is seriously out of balance, and the difficulty of leachate treatment is increasing. In order to make the total nitrogen effluent reach the standard and continue to operate stably, it is necessary to increase the dosage of various chemicals, and the operating cost is greatly increased. Contents of the invention [0003] The embodiment of the present invention rel...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/06C02F101/16
CPCC02F1/04C02F1/42C02F1/441C02F1/442C02F1/722C02F3/302C02F9/00C02F2101/16C02F2103/06
Inventor 王志平黄昭玮李红贺建平胡文立
Owner 武汉天源环保股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap