Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of modified chitosan/zeolite/nano-zirconium adsorbent

A technology of chitosan and nano-zirconium, which is applied in the field of preparation of modified chitosan/zeolite/nano-zirconium adsorbent, can solve the problems of poor removal capacity of nitrate and ammonia nitrogen, and achieve improved physical adsorption and convenient dosing , The effect of simple preparation process

Active Publication Date: 2017-05-10
SHENYANG JIANZHU UNIVERSITY
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at pollution problems such as nitrate and ammonia nitrogen in water, the present invention provides a preparation method and application of a modified chitosan / zeolite / nano zirconium adsorbent. less able problems

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
  • Preparation method and application of modified chitosan/zeolite/nano-zirconium adsorbent
  • Preparation method and application of modified chitosan/zeolite/nano-zirconium adsorbent
  • Preparation method and application of modified chitosan/zeolite/nano-zirconium adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation of the modified chitosan / zeolite / nano zirconium adsorbent of the present embodiment is carried out according to the following steps:

[0024] (1) Chitosan with a deacetylation degree of 85% is added to an acetic acid solution with a volume fraction of 0.8% to prepare a chitosan-acetic acid solution with a weight fraction of 1.8%;

[0025] (2) Combine Y-type zeolite with nano-ZrO 2 According to the mass ratio of 2:1 mixed to form Y-type zeolite / nano-ZrO 2 mixture;

[0026] (3) Add the mixture in step (2) to the chitosan-acetic acid solution in step (1), with a volume ratio of 1:3, mix and heat in a 50°C drying oven for 5 hours to form modified chitosan Sugar / zeolite / nano zirconium mixture;

[0027] (4) Add the modified chitosan / zeolite / nano-zirconium mixture obtained in step (3) to a glutaraldehyde solution with a volume fraction of 25.2%, and stir at 58° C. for 1 hour to obtain a reaction product;

[0028] (5) Rinse the reaction product of step (4)...

Embodiment 2

[0033] The preparation of the modified chitosan / zeolite / nano zirconium adsorbent of the present embodiment is carried out according to the following steps:

[0034] (1) Chitosan with a deacetylation degree of 90% is added to an acetic acid solution with a volume fraction of 0.8% to prepare a chitosan-acetic acid solution with a weight fraction of 2%;

[0035] (2) Combine Y-type zeolite with nano-ZrO 2 According to the mass ratio of 2:1 mixed to form Y-type zeolite / nano-ZrO 2 mixture;

[0036] (3) Add the mixture in step (2) to the chitosan-acetic acid solution in step (1), the volume ratio is 1:4, mix and heat in a 55°C drying oven for 5.5h to form a modified shell Polysaccharide / zeolite / nano zirconium mixture;

[0037] (4) Add the modified chitosan / zeolite / nano-zirconium mixture obtained in step (3) to a glutaraldehyde solution with a volume fraction of 24.8%, and stir at 60° C. for 1 hour to obtain a reaction product;

[0038] (5) Rinse the reaction product of step (4)...

Embodiment 3

[0042] The preparation of the modified chitosan / zeolite / nano zirconium adsorbent of the present embodiment is carried out according to the following steps:

[0043] (1) Chitosan with a deacetylation degree of 90% is added to an acetic acid solution with a volume fraction of 0.8% to prepare a chitosan-acetic acid solution with a weight fraction of 2.2%;

[0044] (2) Combine Y-type zeolite with nano-ZrO 2 According to the mass ratio of 3:1 mixed to form Y-type zeolite / nano-ZrO 2 mixture;

[0045] (3) Add the mixture in step (2) to the chitosan-acetic acid solution in step (1), the volume ratio is 1:5, mix and heat in a 50°C drying oven for 5 hours to form modified chitosan Sugar / zeolite / nano zirconium mixture;

[0046] (4) Add the modified chitosan / zeolite / nano-zirconium mixture obtained in step (3) to a glutaraldehyde solution with a volume fraction of 25%, and stir at 62° C. for 1 hour to obtain a reaction product;

[0047] (5) Rinse the reaction product of step (4) with...

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 belongs to the technical field of water treatment medicaments and particularly relates to a preparation method and application of a modified chitosan / zeolite / nano-zirconium adsorbent. The preparation method comprises the steps of firstly preparing a chitosan acetic acid solution, forming a Y-form zeolite / nano-ZrO2 mixture, adding the mixture into the chitosan acetic acid solution, heating at 50-55 DEG C in a drying box for 5-5.5 hours so as to form a modified chitosan / zeolite / nano-zirconium mixture, adding the modified chitosan / zeolite / nano-zirconium mixture into a glutaraldehyde solution so as to obtain a reactant, and washing and drying the reactant, so as to obtain the modified chitosan / zeolite / nano-zirconium adsorbent. The preparation method has the beneficial effects that the defect that a conventional water treatment medicament currently used in water plants has poor treatment effects to exceeding nitrate and ammonia nitrogen raw water is overcome, the preparation process is simple, the feeding is convenient, the recycling is realized, the influence of environmental factors is low, a water treatment structure does not need to be added, and thus the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of water treatment agents, and in particular relates to a preparation method and application of a modified chitosan / zeolite / nano zirconium adsorbent. Background technique [0002] Due to agricultural non-point source pollution and industrial pollution, surface water and groundwater in most parts of my country contain pollutants such as nitrate and ammonia nitrogen. The water quality of urban centralized groundwater sources is worse than that of Class III, and nitrate and ammonia nitrogen pollution are the main problems. Especially in most rural areas of our country, the main drinking water source is groundwater, and groundwater contains nitrate and ammonia nitrogen pollution will cause great harm to the human body. Nitrate destroys the respiration of cells and tissues, resulting in lactic acid, cholesterol and white blood cells in the blood. Increase, the protein is greatly reduced, thus causing a variety of...

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 Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/16
CPCB01J20/24C02F1/288C02F2101/16C02F2101/163
Inventor 郜玉楠孙美乔周历涛
Owner SHENYANG JIANZHU UNIVERSITY
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