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Attapulgite-based carbon composite ceramsite, its preparation method and use

A technology of attapulgite clay and attapulgite, applied in ceramic products, other household utensils, applications, etc., can solve the problems of inability to achieve energy saving and environmental protection, poor filtration characteristics, and inability to perform adsorption, and achieve excellent environmental adaptability, raw materials The effect of wide source and low price

Active Publication Date: 2011-12-14
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with attapulgite raw ore, the removal rate of organic pollutant phenol in wastewater can be increased by more than 2-3 times, although the modified attapulgite / carbon nano powder product has strong adsorption and decolorization ability and good The adsorption capacity has great application potential in wastewater treatment, but in practical application, the treated wastewater has a problem of solid-liquid separation, which requires additional filtration equipment, and in the state of high powder, there are also poor filtration characteristics. Good, the filter surface of the filter device is easy to clog and other disadvantages; if the powder adsorbent is packed in the exchange column for dynamic adsorption, it is easy to cause clogging, making the adsorption impossible
Glucose is added as a raw material in the preparation process of the material, which cannot achieve energy saving and environmental protection.

Method used

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  • Attapulgite-based carbon composite ceramsite, its preparation method and use
  • Attapulgite-based carbon composite ceramsite, its preparation method and use
  • Attapulgite-based carbon composite ceramsite, its preparation method and use

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Effect test

Embodiment 1

[0031] In the present embodiment, the raw materials of attapulgite-based carbon composite ceramsite are constituted by mass percentage: attapulgite clay 75%, leaves 15%, industrial water glass 10%;

[0032] In this example, the attapulgite-based carbon composite ceramsite is prepared according to the following steps:

[0033] a, drying and pulverizing the attapulgite clay ore and passing through a 200-mesh sieve to obtain attapulgite powder;

[0034] B, the leaves are pulverized through a 200 mesh sieve, mixed with industrial water glass and the attapulgite powder obtained in step a to obtain a mixed powder;

[0035] c. Add water to the mixed powder and stir evenly, the amount of water added is 30% of the mass of the mixed powder, granulate and shape, control the particle size at 5-7mm, then dry naturally, and then calcined at 600°C under nitrogen atmosphere Attapulgite-based carbon composite ceramsite was obtained in 3 hours.

[0036] Using the attapulgite-based carbon comp...

Embodiment 2

[0041] In this embodiment, the raw materials of attapulgite-based carbon composite ceramsite are constituted by mass percentage: attapulgite clay 85%, sawdust 10%, industrial water glass 5%;

[0042] In this example, the attapulgite-based carbon composite ceramsite is prepared according to the following steps:

[0043] a, drying and pulverizing the attapulgite clay ore and passing through a 200-mesh sieve to obtain attapulgite powder;

[0044] B, the sawdust is pulverized through a 200 mesh sieve, mixed with industrial water glass and the attapulgite powder obtained in step a to obtain a mixed powder;

[0045] c. Add water to the mixed powder and stir evenly, the amount of water added is 50% of the mass of the mixed powder, granulate and shape, control the particle size at 5-7mm, then dry naturally, and then store at 500 ° C under an argon atmosphere Calcined for 1 hour to obtain attapulgite-based carbon composite ceramsite.

[0046] The attapulgite-based carbon composite ce...

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Abstract

The invention discloses attapulgite-based carbon composite ceramic particles and a preparation method and use thereof. The raw materials of the composite ceramic particles comprise attapulgite clay, biomass and sodium silicate. The preparation method is to prepare the attapulgite-based carbon composite ceramic particles by using attapulgite clay and biomass raw materials and industrial sodium silicate as a bonding agent and by calcining and carbonizing in an inert atmosphere. The composite ceramic particles prepared have the advantages of high specific surface area, low activation energy, high porosity, high catalytic activity, high water absorption rate and the like. The composite ceramic particles can be used as fillers for biofilters and catalyst carriers.

Description

1. Technical field [0001] The invention relates to the recovery and reuse of solid waste, in particular to an attapulgite-based carbon composite ceramsite, its preparation method and its application. 2. Background technology [0002] As a large agricultural country, my country is rich in biomass resources, mainly rice, wheat, rape straw, and a small amount of corn straw and other crop straw. Most of the traditional treatment methods are incineration in the field. This treatment method not only seriously pollutes the air, but also kills the microorganisms in the land, hardens the land, and increases the amount of chemical fertilizers. In recent years, the country has also issued a policy of banning the burning of straw and agricultural waste, but in some areas there is still the phenomenon of burning straw and agricultural waste. The smoke and dust in the air before and after the autumn harvest in our country is the best proof. The best way to get farmers to stop burning is...

Claims

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Application Information

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IPC IPC(8): C04B33/00C04B33/132C04B38/00C12N11/14
CPCY02P40/60
Inventor 彭书传鲍腾陈天虎刘海波岳正波
Owner HEFEI UNIV OF TECH
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