Renewable adsorption material for deep phosphorus removal of water, preparation method and application of renewable adsorption material

An adsorption material and deep technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, water pollutants, etc., can solve the problems of affecting the service life, easy consumption, poor acid and alkali corrosion resistance, etc., and prolong the service life. , long service life and excellent adsorption performance

Active Publication Date: 2017-08-18
芜湖格丰环保科技研究院有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its acid and alkali corrosion resistance is poor, and it is easy to consume duri

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
  • Renewable adsorption material for deep phosphorus removal of water, preparation method and application of renewable adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] A method for preparing a renewable adsorption material for deep dephosphorization in water, including the following steps:

[0041] (1) Activated alumina balls are roasted at 300°C for 3 hours and placed in a desiccator for later use.

[0042] (2) Weigh 2 parts of urea, 5 parts of iron nitrate nonahydrate and 1 part of cerium nitrate hexahydrate by weight, and dissolve them in 60 parts of water to obtain a mixed solution of urea, iron nitrate and cerium nitrate;

[0043] (3) Weigh 100 parts of activated alumina balls after roasting and pretreatment by weight, put them into a V-type mixer, add 68 parts of the mixed solution prepared in step (2), and mix for 1 hour at a rotation speed of 5 rpm;

[0044] (4) The processed material in step (3) was dried in an oven at 105°C for 6 hours; modified activated alumina balls were obtained;

[0045] (5) Mix 5 parts of sucrose, 0.2 parts of polyvinylpyrrolidone and 20 parts of dilute nitric acid solution and stir for 0.5h, t...

Example Embodiment

[0049] Example 2

[0050] A preparation method of a renewable adsorption material for deep dephosphorization in water includes the following steps:

[0051] (1) The activated alumina balls are roasted at 400°C for 2 hours, and put in a desiccator for later use.

[0052] (2) Weigh 4 parts of urea, 10 parts of iron acetate tetrahydrate and 2 parts of cerium acetate pentahydrate by weight, and dissolve them in 180 parts of water to obtain a mixed solution of urea, iron acetate and cerium acetate;

[0053] (3) Weigh 100 parts of activated alumina balls after roasting and pretreatment by weight, put them into a V-type mixer, add 66 parts of the mixed solution prepared in step (2), and mix for 0.5h at a speed of 10 rpm;

[0054] (4) The processed material in step (3) is dried in an oven at 120°C for 5 hours;

[0055] (5) Put the dried activated alumina balls in step (4) into 65 parts of the solution prepared in step (2); mix for 0.5h at a speed of 10 rpm; then dry in an oven at 120°C for 5 hou...

Example Embodiment

[0059] Example 3

[0060] A preparation method of a renewable adsorption material for deep dephosphorization in water includes the following steps:

[0061] (1) The activated alumina balls are roasted at 400°C for 2 hours, and put in a desiccator for later use;

[0062] (2) Weigh 6 parts of urea, 15 parts of iron acetate tetrahydrate and 3 parts of cerium acetate pentahydrate by weight, and dissolve them in 130 parts of water to obtain a mixed solution of urea, iron acetate and cerium acetate;

[0063] (3) Weigh 100 parts of activated alumina balls after roasting pretreatment by weight, put them into the V-type mixer, and then add 77 parts of the mixed solution in (2), and mix for 0.5h at a speed of 10 rpm;

[0064] (4) The processed material in step (3) is dried in an oven at 120°C for 5 hours;

[0065] (5) Put the activated alumina balls after drying in step (4) in the mixed solution prepared in the remaining step (2), and mix for 0.5h at a speed of 10 rpm; then dry in an oven at 120°C...

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
Specific surface areaaaaaaaaaaa
Adsorption capacityaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to view more

Abstract

The invention provides a renewable adsorption material for deep phosphorus removal of water, a preparation method and application of the renewable adsorption material. A carbonization step is added in the preparation process of the material; after calcination and carbonization are carried out with the surface of the material wrapped with a carbon source material, on one hand, the roughness of the surface can be improved to increase the specific area, and on the other hand, the acid and alkali resistance of the material can be improved to some extent to prolong the service life of the material, which is beneficial to multiple times of regeneration and use. The prepared phosphorus adsorption material is excellent in adsorption property and especially suitable for deep treatment of wastewater with a low total phosphorus concentration. Compared with the prior art, the prepared material is high in phosphorus removal efficiency and long in service life, the regeneration method of the material is simple, the regeneration effect is excellent, and the regeneration rate is still kept at 70% or above after 20 times of regeneration of the material.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a renewable adsorption material for deep phosphorus removal in water bodies, a preparation method and an application thereof. Background technique [0002] The eutrophication of water body caused by excessive phosphorus content has become a common environmental problem faced by the whole world. At present, the commonly used phosphorus removal methods at home and abroad include chemical precipitation method, ion exchange method, biological method, adsorption method and so on. [0003] The chemical precipitation method is currently the most widely used method because of its high phosphorus removal efficiency, simple operation, and low requirements for operators. However, at the same time, it produces a large amount of mud, which is likely to cause secondary pollution and is difficult to handle. Although the ion exchange method has a high removal rate, the ion e...

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): B01J20/02B01J20/08B01J20/28B01J20/30C02F1/28C02F101/10
CPCB01J20/0207B01J20/0229B01J20/08B01J20/28061B01J20/28064C02F1/281C02F2101/105
Inventor 侍孟璐章文贵吴黄河向耿辉奉向东
Owner 芜湖格丰环保科技研究院有限公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap