Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Equipment and method for treating wastewater difficult to be degraded by biology method of hydrolysis-composite membrane

A composite membrane, refractory technology, applied in the field of organic sewage treatment, can solve the problems of insufficient mixing and contact of wastewater and sludge, inability to guarantee residence time, poor separation of mud and water, etc., so as to overcome the poor separation of mud and water and improve the Biodegradability, the effect of reducing the concentration of organic matter

Inactive Publication Date: 2009-03-18
SOUTHEAST UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem: The object of the present invention is to provide a device and method for treating refractory wastewater by hydrolysis-composite membrane biological method, which organically combines hydrolysis and composite membrane biological method to overcome the poor biodegradability of refractory wastewater existing in the existing process , can not guarantee the residence time, prone to short flow and channel flow, wastewater and sludge cannot be fully mixed and contacted, mud-water separation effect is not good, etc.

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
  • Equipment and method for treating wastewater difficult to be degraded by biology method of hydrolysis-composite membrane
  • Equipment and method for treating wastewater difficult to be degraded by biology method of hydrolysis-composite membrane
  • Equipment and method for treating wastewater difficult to be degraded by biology method of hydrolysis-composite membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The device for treating refractory wastewater by hydrolysis-composite membrane biological method of the present invention comprises a multi-compartment hydrolysis reactor 1 and a composite membrane bioreactor 2, wherein the outlet end of the multi-compartment hydrolysis reactor 1 connects with the connecting pipe 1-7 The water inlets 2-8 of the composite membrane bioreactor 2 are connected, and the membrane module in the composite membrane bioreactor 2 is connected with a membrane separation outlet pipe B. In the composite membrane bioreactor 2, through the first control valve 3 -1. The first reflux pump 4-1 and the mixed liquid reflux pipe 6 are connected to the water inlet pipe 1-8 of the multi-compartment hydrolysis reactor 1; the compressed air pipe A and the aeration pipe 2 in the lower part of the composite membrane bioreactor 2- 6-phase connection, the outlet of the mud collection area 2-3 at the bottom of the composite membrane bioreactor 2 is connected to the in...

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

PropertyMeasurementUnit
decolorization rateaaaaaaaaaa
Login to View More

Abstract

This invention relates to apparatus and method for treating wastewater by hydrolysis-composite membrane biological method. The apparatus comprises: a multi-grid hydrolysis reactor and a composite membrane bioreactor. The method comprises: (1) introducing wastewater into the multi-grid hydrolysis reactor, and hydrolyzing in an anaerobic condition; (2) introducing the hydrolyzed wastewater into the contact oxidation region of the composite membrane reactor, and performing aerobic biological treatment; (3) introducing wastewater into the membrane separation region of the composite membrane bioreactor, and performing further aerobic biological treatment; (4) returning the sludge produced in the multi-grid hydrolysis reactor and the composite membrane bioreactor to the flow-guide region.

Description

technical field [0001] The invention relates to a device and method for treating refractory wastewater by a hydrolysis-composite membrane biological method, and belongs to the technical field of organic sewage (waste) water treatment. Background technique [0002] For the refractory industrial wastewater with a large volume and wide area, it is difficult to meet the discharge standard by using a single aerobic biological method or anaerobic biological method, and the operating cost is too high if the physical and chemical method is used. The method of using anoxic hydrolysis to pretreat refractory wastewater followed by aerobic biological treatment has been gradually recognized. Anoxic hydrolysis pretreatment has a short hydraulic retention time, a high conversion rate of refractory organic matter, and can greatly improve the biodegradability of wastewater. The organic matter converted by hydrolysis can be efficiently degraded in the subsequent aerobic stage. The joint tre...

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): C02F9/14C02F3/30C02F3/10C02F3/12C02F1/44C02F101/30
CPCY02W10/10
Inventor 王世和吴慧芳
Owner SOUTHEAST UNIV
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
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