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

Airlift oxidation ditch type membrane bioreactor

A membrane bioreactor, oxidation ditch technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., to achieve the effect of increasing volume load, saving power consumption, and high solid-liquid separation efficiency

Active Publication Date: 2013-03-06
水木清环(苏州)环保科技有限公司
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High operating energy consumption has become a limiting factor affecting the popularization and application of MBR technology, and it is a key problem to be solved urgently

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
  • Airlift oxidation ditch type membrane bioreactor
  • Airlift oxidation ditch type membrane bioreactor
  • Airlift oxidation ditch type membrane bioreactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, air-lift oxidation ditch type membrane bioreactor

[0022] The structure of the airlift oxidation ditch type membrane bioreactor in this embodiment is as follows figure 1 and figure 2 As shown, it includes an oxidation ditch surrounded by outer ditch walls 13, and a partition wall 4 is arranged inside the oxidation ditch; the reactor includes two treatment units, and the two treatment units are connected. Each treatment unit sequentially forms anoxic zone 7, anaerobic zone 8 and aerobic zone 6 along the water flow direction; wherein the aerobic zone includes 2 aeration sections; Part of the first aeration zone 9 and the second aeration zone 5 surrounded by the first baffle plate 1; a third baffle plate 3 is provided between the first aeration zone and the second aeration zone; along the direction of water flow The first aerated zone is adjacent to the anaerobic zone. There is a second baffle 2 in the first aeration area, and the second baffle divides t...

Embodiment 2

[0027] Embodiment 2, air-lift oxidation ditch type membrane bioreactor

[0028] The structure of the airlift oxidation ditch type membrane bioreactor in this embodiment is as follows image 3 and Figure 4 As shown, its structure is basically the same as that of Example 1, except that along the direction of water flow, the second aeration zone is adjacent to the anaerobic zone, and the membrane used in the membrane module is a microfiltration membrane.

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 airlift oxidation ditch type membrane bioreactor. The invention provides the airlift oxidation ditch type membrane bioreactor, wherein an oxidation ditch enclosed by an external ditch wall is divided into two symmetrical parts which take a partition wall as the dividing line by the partition wall, a first baffle plate, a second baffle plate and a third baffle plate; the oxidation ditch is internally provided with a plurality of aeration sections at intervals, each aeration section is internally provided with two aeration regions, i.e. a first aeration region and a second aeration region; and the first aeration region is internally provided with a membrane component, the membrane component is arranged between the first baffle plate and the second baffle plate, and the bottom of the membrane component is provided with an aeration pipe. The airlift oxidation ditch type membrane bioreactor has the following beneficial effects that the wastewater biological treatment and the solid-liquid separation in combination with the airlift oxidation ditch of the membrane bioreactor are carried out in an oxidation ditch pond body, so that the problem of sludge reflowing can be naturally solved, and a sludge reflowing apparatus is not needed; therefore, the airlift oxidation ditch type membrane bioreactor not only has the high-efficiency biological treatment capability of the oxidation ditch but also has the good solid-liquid separation effect of the membrane bioreactor.

Description

technical field [0001] The invention relates to the technical field of water and waste water treatment and purification, in particular to an air-lift oxidation ditch type membrane bioreactor. Background technique [0002] Membrane bioreactor is a new sewage treatment and reuse process that combines membrane separation technology and biological treatment unit. Because the process adopts efficient membrane separation to replace the secondary sedimentation tank in the traditional activated sludge process, microorganisms can be intercepted through membrane separation, and the separation of hydraulic retention time and sludge age can be realized. The solid-liquid separation efficiency is high, and the effluent is good and stable. Direct reuse; high concentration of microbial biomass can be maintained in the reactor, high volume load for treatment, and small footprint; small amount of excess sludge generated; convenient operation and management, and high degree of automation. In ...

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
IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 黄霞施汉昌夏俊林
Owner 水木清环(苏州)环保科技有限公司
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