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A light modified filter material and its preparation method and application

A modified and lightweight technology, applied in the field of water treatment, can solve the problems of low surface adsorption capacity, small specific surface area, low porosity, etc., and achieve the effect of improving isoelectric point and service life, large specific surface area, and enhanced strength

Active Publication Date: 2019-01-08
吉林梅基特环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The first purpose of the present invention is to provide a light-weight modified filter material to solve the defects of the existing quartz sand filter material, such as negative charge on the surface, small specific surface area, low porosity, and low surface adsorption capacity. The material is only coated with a thin layer of metal oxide coating on the quartz sand, and the surface has been modified, which affects the service life of the modified filter material, cannot guarantee the stability of its effluent water quality, and restricts Popularization and Application of Modified Filter Material

Method used

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  • A light modified filter material and its preparation method and application
  • A light modified filter material and its preparation method and application
  • A light modified filter material and its preparation method and application

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preparation example Construction

[0053] The preparation method of described lightweight modified filter material, comprises the following steps:

[0054] The waste glass is crushed, crushed and ground, then metal oxide modifier and foaming agent are added, heated and melted, foamed, solidified, cooled, crushed after cooling, and the particle size is screened to obtain the light modified filter material .

[0055] The preparation method of lightweight filter material provided by this application uses the crushed, washed and dried waste glass powder as the main raw material, adding a specific number of metal oxide modifiers and foaming agents, and finely pulverizing and uniformly After mixing, it is a lightweight filter material made by high temperature melting, foaming and annealing. After further processing such as crushing and screening, a new type of light weight, high isoelectric point, large specific surface area, and porosity new type of whole body modified glass filter material for water treatment is o...

Embodiment 1

[0063] The waste glass is crushed to obtain 3mm glass fragments, and the glass fragments are crushed into fine glass powder with a particle size of 100 μm;

[0064] Add 1 part of foaming agent (carbon black) and 5 parts of metal oxide modifier (titanium oxide) to 75 parts by weight of fine glass powder and mix to obtain a mixed raw material;

[0065] After the mixed raw materials are melted and foamed, they are sequentially cooled and pulverized again to obtain foam glass; wherein, during the process of melting and foaming, the melting and foaming furnace is raised to 600°C at a rate of 10°C / min, and foamed for 3 hours. Then it is solidified and cooled, crushed after cooling, and the particle size is screened to obtain the light modified filter material.

Embodiment 2

[0067] Crushing waste glass to obtain 4mm glass fragments, and crushing the glass fragments to fine glass powder with a particle size of 200 μm;

[0068] After adding 10 parts of foaming agent (calcium carbonate) and 20 parts of metal oxide modifier (iron oxide) to 100 parts by weight of fine glass powder, mix them evenly to obtain mixed raw materials;

[0069] After the mixed raw materials are melted and foamed, they are cooled and crushed again to obtain foam glass; wherein, during the process of melting and foaming, the melting and foaming furnace is raised to 1100°C at a rate of 10°C / min, and foamed for 2 hours. Then it is solidified and cooled, crushed after cooling, and the particle size is screened to obtain the light modified filter material.

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Abstract

The invention provides a light-weight modified filter material and its preparation method and application. It is prepared from the following components in parts by mass: 75-100 parts of waste glass, 5-20 parts of metal oxide modifier and Foaming agent 1‑10 parts. The light modified filter material has the advantages of light weight, large specific surface area, high isoelectric point, porosity, etc., and improves the isoelectric point and service life of the filter material. Its preparation method adopts the addition of metal oxides, which can be combined with SiO in the glass body 2 Combined to form Si-O-Me (Me metal ions) into the glass network, increase the degree of polymerization of the structure, thereby increasing the isoelectric point of the glass body, increasing the hardness and toughness of the glass body, thereby improving the foam glass filter material The service life is improved, and its practicability and economy are also improved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a light modified filter material and its preparation method and application. Background technique [0002] With the development of society and the continuous improvement of people's living standards, higher and higher requirements are put forward for the quality of water environment. Therefore, improved drinking water standards and strengthened sewage discharge standards have become inevitable. For example: the Ministry of Health issued the new "Drinking Water Sanitation Standard" (GB 5749-2006) on December 29, 2006, which is basically close to the world's advanced level in terms of overall index structure and quantity; in 2015, the Ministry of Environmental Protection decided to revise the " Pollutant Discharge Standards for Urban Sewage Treatment Plants (GB18918-2002) (draft for comments) further strengthened the pollutant discharge indicators. This also puts forward ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C11/00C03C6/02B01D39/06B01J20/12B01J20/28C02F1/00C02F1/28
CPCB01D39/06B01J20/12B01J20/28C03B19/08B01J20/28011B01J20/3064B01J20/08B01J20/28004B01J20/3078B01J20/06B01J20/3021B01J20/28016B01J20/103B01J20/28059C02F1/281C02F1/288C02F1/001B01D2239/10B01D2239/1208B01D2239/1241C03C11/007C03C1/002
Inventor 崔旸河俊秀崔学烈
Owner 吉林梅基特环保科技有限公司
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