Check patentability & draft patents in minutes with Patsnap Eureka AI!

Ultrasonic assisted nanometer aluminum oxide modified polyvinyl alcohol-sodium alginate embedding material, preparation method and applications thereof

A nano-alumina, polyvinyl alcohol technology, applied in chemical instruments and methods, aerobic and anaerobic process treatment, water/sludge/sewage treatment, etc., can solve the problem of high operating energy consumption, complex technical management, and infrastructure investment It can improve the pore structure, strengthen the effect, and improve the mass transfer performance.

Active Publication Date: 2016-12-21
CHONGQING UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, processes such as biological aerated filter, membrane bioreactor, moving bed biofilm, and biological aerated fluidized bed have been applied to various degrees in advanced sewage treatment or tertiary treatment to strengthen the further removal of ammonia nitrogen, but different To a certain extent, there are limitations such as large investment in infrastructure, high energy consumption in operation, and complex technical management.

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
  • Ultrasonic assisted nanometer aluminum oxide modified polyvinyl alcohol-sodium alginate embedding material, preparation method and applications thereof
  • Ultrasonic assisted nanometer aluminum oxide modified polyvinyl alcohol-sodium alginate embedding material, preparation method and applications thereof
  • Ultrasonic assisted nanometer aluminum oxide modified polyvinyl alcohol-sodium alginate embedding material, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: An ultrasonic-assisted nano-alumina modified polyvinyl alcohol-sodium alginate embedding material. The main components and contents are as follows (per 100mL of aqueous solution):

[0040] 10g of polyvinyl alcohol, 0.8g of sodium alginate, 0.5g of nano-alumina, and 10g of activated sludge.

[0041] Prepare as follows:

[0042] ① Preparation of polyvinyl alcohol-sodium alginate gel solution

[0043] Dissolve polyvinyl alcohol in a water bath at 90°C, then add sodium alginate to the polyvinyl alcohol solution, mix well, and cool to room temperature to obtain a polyvinyl alcohol-sodium alginate gel solution;

[0044] ②Add nano-alumina

[0045] Add nano-alumina to the polyvinyl alcohol-sodium alginate gel solution and mix well;

[0046] ③ Ultrasonic treatment

[0047] Put the mixed gel solution into the ultrasonic device, set the frequency to 40kHz, after ultrasonic treatment for 30min, let it stand until completely cooled;

[0048] ④Treatment of activated slu...

Embodiment 2

[0056] Example 2: An ultrasonic-assisted nano-alumina modified polyvinyl alcohol-sodium alginate embedding material. The main components and contents are as follows (per 100mL of aqueous solution):

[0057] 10g of polyvinyl alcohol, 0.1g of sodium alginate, 0.3g of nano-alumina, and 15g of activated sludge.

[0058] The preparation method is the same as in Example 1.

Embodiment 3

[0059] Example 3: An ultrasonic-assisted nano-alumina modified polyvinyl alcohol-sodium alginate embedding material. The main components and contents are as follows (per 100mL of aqueous solution):

[0060] 15g of polyvinyl alcohol, 1.0g of sodium alginate, 0.7g of nano-alumina, and 20g of activated sludge.

[0061] The preparation method is the same as in Example 1.

[0062] see figure 1 , at 3381cm -1 There is a strong transmission peak at , corresponding to the stretching vibration of the hydroxyl group (-OH), which is mainly due to the high hydrophilicity of polyvinyl alcohol leading to stretching vibrations of intermolecular and intramolecular hydrogen bonds. The characteristic peak is at 2941 cm -1 ,1622 cm -1 and 1112 cm -1 corresponding to the stretching vibrations of C-H, -COO and C-O respectively.

[0063] see figure 2 , which are the Raman spectra before and after material modification, from bottom to top are polyvinyl alcohol-sodium alginate, polyvinyl alco...

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an ultrasonic assisted nanometer aluminum oxide modified polyvinyl alcohol-sodium alginate embedding material, a preparation method and applications thereof, and particularly relates to the technical field of ammonia nitrogen removal in waste water. According to the present invention, polyvinyl alcohol, sodium alginate and nanometer aluminum oxide are prepared into a mixed gel solution, the mixed gel solution is subjected to an ultrasonic-assisted modification treatment, and acclimated active sludge and the modified mixed gel solution are uniformly mixed to prepare the immobilization ball; and the embedding material prepared through the method has the good mass transfer performance and the mechanical strength, and can effectively remove the ammonia nitrogen from the waste water, such that the embedding material of the present invention can be widely used in sewage treatment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an ultrasonic-assisted nano-alumina modified polyvinyl alcohol-sodium alginate embedding material and a preparation method thereof. Background technique [0002] Ammonia nitrogen is one of the important causes of water eutrophication, so the control of nitrogen load in wastewater treatment is particularly critical. The enhanced removal of ammonia nitrogen in urban sewage and industrial wastewater treatment is crucial to reducing the nitrogen load entering the water environment. At present, the discharge limits of ammonia nitrogen and total nitrogen in the effluent of industrial wastewater treatment in my country are becoming increasingly stringent. For example, GB 4287-2012 of Discharge Standard of Water Pollutants for Textile Dyeing and Finishing Industry replaces GB 4287-92, and the direct discharge of ammonia nitrogen is adjusted from 15mg / L The total nitro...

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): C02F3/30C02F3/12
CPCC02F3/1263C02F3/302C02F2101/16Y02W10/10
Inventor 许晓毅尤晓露吕晨培王斌吉芳英胡碧波
Owner CHONGQING UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com