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

A kind of porous fiber material carrier and its preparation method and its application in treating waste water

A technology of porous fiber and fiber material, applied in the field of porous fiber material carrier and its preparation, which can solve the problems of poor treatment effect and long start-up period of wastewater treatment, and achieve good mass transfer performance, stable reaction, and favorable discharge treatment effects

Active Publication Date: 2020-07-31
NANJING TECH UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the technical problem to be solved by this invention is to provide a kind of anaerobic expanded granular sludge bed added with porous fiber material carrier for the deficiencies in the prior art, so as to solve the long start-up period of the prior art EGSB reactor for treating wastewater, Dealing with poor performance

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
  • A kind of porous fiber material carrier and its preparation method and its application in treating waste water
  • A kind of porous fiber material carrier and its preparation method and its application in treating waste water
  • A kind of porous fiber material carrier and its preparation method and its application in treating waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Wash the polyethylene fiber in pure water for 2 hours, then soak it in more than 95% alcohol for 6 hours, then rinse it with alcohol, dry it, and crush it. It is prepared by 3D printing technology. It is short cylindrical and has a density of 0.95g / cm 3 , the aperture is 12mm, the diameter is 25mm, the height is 10mm, and the porosity is 70%.

Embodiment 2

[0035] Wash the polyethylene fiber and polyether polyol in pure water for 2 hours, then soak in 95% alcohol for 6 hours, then rinse with alcohol, dry, pulverize, mix completely according to the mass ratio of 9:1, pass Prepared by 3D printing technology, low cylindrical shape, density 0.96g / cm 3 , the aperture is 15mm, the diameter is 30mm, the height is 10mm, and the porosity is 70%.

Embodiment 3

[0037] Wash the polyurethane fibers and polyvinyl alcohol fibers in pure water for 2 hours, and then soak them in more than 95% alcohol for 6 hours. Prepared by printing technology, cube, density 0.9g / cm 3 , the aperture is 3mm, the side length is 15mm, and the porosity is 30%.

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
densityaaaaaaaaaa
sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a porous fiber material carrier and a preparation method thereof. A fiber material is put in water for cleaning and then is put in ethyl alcohol for soaking, then thorough flushing is performed with ethyl alcohol, the fiber material is dried, smashed and mixed and then is added into a 3D printer for heating and melting, a carrier digital model file is used as a basis, a 3D printing technology is applied to prepare the carrier in a layer-by-layer printing mode. The invention also discloses application of an anaerobic expanded granular sludge bed added with the porous fiber material carrier in treatment of ethyl alcohol waste water. The reactor operation is stable in the starting process of a reactor, the problem of sudden acidification does not occur, the starting time is obviously shortened, the sludge amount in effluent is obviously decreased, the effluent is approximately clarified, and accordingly later discharge treatment is promoted.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a porous fiber material carrier, its preparation method and its application in wastewater treatment. Background technique [0002] The expanded granular sludge bed (EGSB) reactor is the third generation anaerobic reactor developed on the basis of the up-flow anaerobic sludge bed (UASB) reactor. In the early 1980s, Professor LETTINGA of Wageingen Agricultural University in the Netherlands realized the effective separation of hydraulic retention time (HRT) and sludge retention time (SRT) by adding a three-phase separator to the traditional anaerobic reactor, thus inventing Upflow anaerobic sludge bed reactor. Although the UASB reactor can retain a large amount of activated sludge, which has laid the foundation for its efficient operation, but due to insufficient mixing strength in the reactor, the bottom sludge is operated at an ultra-high load, thereby inhibiting the activity of m...

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): C02F3/28C02F103/32
CPCC02F3/28C02F2103/32
Inventor 应汉杰朱杰陈勇周精卫刘桂文
Owner NANJING TECH UNIV
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