Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Efficient denitrification method and efficient denitrification system for landfill leachate

A landfill leachate, high-efficiency technology, applied in chemical instruments and methods, contaminated groundwater/leachate treatment, water/sewage multi-stage treatment, etc., can solve the problem of large land occupation, decreased biochemical treatment efficiency, and long treatment time and other problems, to achieve the effect of solving the low efficiency of biochemical treatment, reducing adverse effects, and improving adsorption performance

Active Publication Date: 2020-06-26
GUANGZHOU EP ENVIROMENTAL ENG
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned technical scheme, there are mainly the following disadvantages: (1) In this technical scheme, heavy metals are not effectively removed in the front stage of biochemical treatment, the landfill leachate has complex components, and the content of inorganic salts and heavy metals is high. The toxic effects of microorganisms lead to a decrease in the efficiency of subsequent biochemical treatment; (2) By using the A / O pool and the anammox pool for short-range nitrification and anammox, respectively, the cost of construction, operation and maintenance is relatively high, Large area; (3) Electro-oxidation technology is used, the efficiency of single electro-oxidation technology to degrade pollutants is low, and the treatment time is long

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
  • Efficient denitrification method and efficient denitrification system for landfill leachate
  • Efficient denitrification method and efficient denitrification system for landfill leachate
  • Efficient denitrification method and efficient denitrification system for landfill leachate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments. Those skilled in the art should understand that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0035] In the examples, the experimental methods used are conventional methods unless otherwise specified, and the materials and reagents used, unless otherwise specified, can be obtained from commercial sources.

[0036] An efficient denitrification system for landfill leachate, such as figure 1 As shown, it includes an electric flocculation system 1, a short-cut nitrification-anammox system 2 and a photocatalytic-persulfate oxidation system 3 connected in sequence; the short-cut nitrification-anammox system 2 is filled with tourmaline and glass pumice Composite filler 201; The photocatalysis-persulf...

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 discloses an efficient denitrification method and an efficient denitrification system for landfill leachate. The system comprises an adjusting tank, an electric flocculation system, a short-cut nitrification-anaerobic ammonia oxidation system and a photocatalysis-persulfate oxidation system which are connected in sequence, wherein the short-cut nitrification-anaerobic ammonia oxidation system is filled with a tourmaline and glass pumice composite filler, and the photocatalysis-persulfate oxidation system is provided with a persulfate adding device and bentonite loaded nano titanium dioxide. According to the invention, landfill leachate is treated by utilizing an electric flocculation coupling short-cut nitrification-anaerobic ammonia oxidation technology and a photocatalysis-persulfate technology, so that ammonia nitrogen, organic matters and heavy metals in landfill leachate are efficiently removed.

Description

Technical field [0001] The invention relates to the field of landfill leachate treatment, in particular to a method and system for efficiently removing nitrogen from landfill leachate. Background technique [0002] The conventional treatment technology of landfill leachate is mainly divided into physical and chemical methods and biological methods. Among them, physical and chemical methods include coagulation, stripping, chemical precipitation, etc., and biological laws include anaerobic biological treatment, aerobic biological treatment and anaerobic- Aerobic combined treatment, in recent years, including ozone, electrochemistry, persulfate oxidation technology and other advanced oxidation technology in the landfill leachate treatment more and more applications. [0003] The prior art adopts the combined process of short-cut nitrification and anaerobic ammonia oxidation and electro-oxidation to treat landfill leachate. After pretreatment in the UASB tank and short-cut nitrificatio...

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): C02F9/14C02F103/06
CPCC02F9/00C02F2103/06C02F3/307C02F1/463C02F1/72C02F1/30C02F1/32C02F2301/08
Inventor 干仕伟周文栋黄睦凯钟华东王志强伦见强谢慧昌郭敏莹蒋琴贺玉平李锦荣李伟光蔡陈英冼楚文
Owner GUANGZHOU EP ENVIROMENTAL ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com