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

Method and system for treating concentrated liquid from reverse osmosis of high concentration waste water

A technology of high-concentration wastewater and treatment methods, applied in the fields of osmosis/dialysis water/sewage treatment, biological water/sewage treatment, water/sewage multi-stage treatment, etc. problems, to achieve the effect of efficient treatment

Active Publication Date: 2009-07-08
JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method and system for treating concentrated liquid of high-concentration wastewater through reverse osmosis process, so as to make up for the defects in the prior art that the treatment of concentrated water causes secondary environmental pollution and cannot effectively and thoroughly control pollution.

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
  • Method and system for treating concentrated liquid from reverse osmosis of high concentration waste water
  • Method and system for treating concentrated liquid from reverse osmosis of high concentration waste water
  • Method and system for treating concentrated liquid from reverse osmosis of high concentration waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] according to figure 1 , the present invention at least includes a regulating tank 11, a reaction tank 12, a sedimentation tank 13 and related pump equipment, a membrane bioreactor 2, a membrane treatment system 3 and an enhanced drying tank 4 for primary physical and chemical treatment of landfill leachate, and the primary physical and chemical treatment The produced pretreatment water is input to membrane bioreactor 2, and membrane bioreactor 2 comprises activated sludge process---aerobic pond and hollow fiber ultrafiltration membrane, and in the present invention, membrane bioreactor 2 collects activated sewage Sludge method and membrane separation are integrated, and membrane separation is carried out at the same time as biological treatment. Membrane bioreactor 2. After biological treatment and membrane separation of pre-treated water, membrane bioreactor 2 outputs reclaimed water to membrane treatment system 3, and membrane bioreactor 2 The treatment system 3 perfo...

Embodiment 2

[0063] Such as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the membrane treatment system 3 adopts a reverse osmosis membrane device 32 to perform single-stage membrane treatment on reclaimed water.

[0064] The principles, structures, and methods of other parts are the same or similar to those described in Embodiment 1, and will not be repeated here.

[0065] In the present invention, a plurality of nanofiltration devices 31 or a plurality of reverse osmosis membrane devices 32 can be used to carry out multi-stage membrane treatment of reclaimed water, which can be implemented without creative work for those of ordinary skill in the art. I won't repeat them here.

Embodiment 3

[0067] Such as Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the membrane treatment system 3 adopts nanofiltration device 31 and reverse osmosis membrane device 321, 322 to perform multi-stage membrane treatment on reclaimed water, and the multi-stage membrane It specifically includes three-stage membrane treatment, which is completed through nanofiltration device 31, concentrated water tank 33, high-pressure pump 34, primary reverse osmosis membrane device 321, concentrated water tank 35, high-pressure pump 36, and secondary reverse osmosis membrane device 321. .

[0068] The principles, structures, and methods of other parts are the same or similar to those described in Embodiment 1, and will not be repeated here.

[0069] Similarly, the use of the nanofiltration device 31 and the reverse osmosis membrane device 32 can complete the 2-stage and 3-stage membrane treatment, which can be implemented by those skilled in t...

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 present invention is method and system for treating concentrated liquid from the reverse osmosis of high concentration waste water. The method includes the following steps: 1. initial physical and chemical treatment on garbage percolating liquid to produce pre-treated water; 2. biologically treating and membrane separating the pre-treated water in a membrane bioreactor to produce intermediate water; 3. treating the intermediate water in a membrane treating system and conveying the concentrated water to the drying pond; and 4. drying the concentrated water to produce solid matter. The system includes at least regulating pond, reaction pond, settler and pump for the initial treatment; membrane bioreactor and membrane treating system; and drying pond. The present invention has no secondary pollution, and possesses effective and complete pollution treating effect.

Description

technical field [0001] The invention relates to a treatment method for high-concentration wastewater, in particular to a method and system for treating concentrated liquid of high-concentration wastewater through a reverse osmosis process. Background technique [0002] Landfill leachate and papermaking, alcohol, dyes, pesticides, leather, viscose, monosodium glutamate, sugar, farming and other high-concentration wastewater have high pollution loads, and their chemical oxygen demand (COD: Chemical OxygenDemand is as high as thousands to tens of thousands mg / l , poor biodegradability, and often contains toxic and harmful substances, high solid content concentration, usually incineration treatment, dilution treatment or chemical treatment, but due to the limitations of the above methods, it is easy to cause secondary pollution, and the operation cost is expensive , the enterprise is unbearable. [0003] In the treatment of high-concentration wastewater, it is difficult for gen...

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 Patents(China)
IPC IPC(8): C02F9/14C02F1/52C02F1/44C02F3/12C02F3/10
CPCY02W10/10
Inventor 廖志民郭景奎吴吉军杨茂杨欣李荣万爱国俞坤陈晋何凌云魏旭夏晓春赵敏慧
Owner JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
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