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Preparation method of burn-free tourmaline biological ceramsite and application thereof in decolouration of dye wastewater

A technology of biological ceramsite and tourmaline, applied in the direction of solid waste management, climate sustainability, sustainable waste treatment, etc., can solve the problem of acid dissolution rate, unsatisfactory physical and chemical properties of bulk density, failure to find decolorizing agent, and poor effect Good and other problems, to achieve the effect of good decolorization effect, moderate strength, low acid dissolution rate

Inactive Publication Date: 2015-03-25
ZHONGKAI UNIV OF AGRI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the treatment methods of printing and dyeing wastewater usually include biological method, physical adsorption method, chemical oxidation method, electrochemical method and photocatalytic technology, etc., but these methods are either too expensive or ineffective. Good performance decolorizer
The ceramsite prepared by the prior art has the defects of unsatisfactory physical and chemical properties such as acid dissolution rate and bulk density

Method used

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  • Preparation method of burn-free tourmaline biological ceramsite and application thereof in decolouration of dye wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of non-burning tourmaline biological ceramsite, it is prepared according to the following steps (flow chart sees figure 1 ):

[0033] (1) Weigh each component according to the formula: by mass percentage, 40% of fly ash, 15% of cement, 15% of lime powder, 15% of sodium bicarbonate, 1.5% of gypsum, 5% of water glass, 1% of Aspergillus fumigatus , tourmaline balance;

[0034] (2) Granulation: mix each component uniformly to become a mixture, add water to the mixture, the add-on of water is 35% of the quality of the mixture, stir evenly, granulate in a granulator, and obtain a particle diameter of 3 ~ 6mm spherical ceramsite raw material;

[0035] (3) Aging, drying, and constant temperature steaming of the ceramsite raw meal, that is, placing the ceramsite raw meal at room temperature for 1 hour, then moving it into an oven, drying it at 100°C for 2 hours, and finally moving it into a pressure steam sterilizer to Curing at a constant temperature of 100°C for 12 h...

Embodiment 2

[0038] A kind of unfired tourmaline biological ceramsite, it is prepared according to the following steps:

[0039] (1) Weigh each component according to the formula: by mass percentage, fly ash 46.5%, cement 12%, lime powder 12%, sodium bicarbonate 12%, gypsum 1%, water glass 7%, Aspergillus fumigatus 0.5% , tourmaline balance;

[0040] (2) Granulation: mix each component uniformly to become a mixture, add water to the mixture, the addition of water is 30% of the mixture quality, stir evenly, granulate in a granulator, and obtain a particle diameter of 3 ~ 6mm spherical ceramsite raw material;

[0041] (3) Aging, drying, and constant temperature steaming of the ceramsite raw meal, that is, placing the ceramsite raw meal at room temperature for 2 hours, then moving it into an oven, drying it at 100°C for 1.5 hours, and finally moving it into a pressure steam sterilizer Curing at a constant temperature of 100°C for 10 hours to prepare non-fired tourmaline bio-ceramsite.

[0...

Embodiment 3

[0044] A kind of unfired tourmaline biological ceramsite, it is prepared according to the following steps:

[0045] (1) Weigh each component according to the formula: by mass percentage, fly ash 37.5%, cement 17%, lime powder 17%, sodium bicarbonate 17%, gypsum 2%, water glass 3%, Aspergillus fumigatus 2% , tourmaline balance;

[0046] (2) Granulation: mix each component uniformly to become a mixture, add water to the mixture, the addition of water is 40% of the quality of the mixture, stir evenly, granulate in a granulator, and obtain a particle diameter of 3 ~ 8mm spherical ceramsite raw materials;

[0047] (3) Aging, drying, and constant temperature steaming of the ceramsite raw meal, that is, placing the ceramsite raw meal at room temperature for 1 hour, then moving it into an oven, drying it at 100°C for 3 hours, and finally moving it into a pressure steam sterilizer to Curing at a constant temperature of 100°C for 14 hours to obtain non-fired tourmaline bio-ceramsite. ...

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Abstract

The invention provides a preparation method of burn-free tourmaline biological ceramsite and an application thereof in decolouration of dye wastewater. The preparation method disclosed by the invention comprises the following steps: (1), weighing the following components according to a formula: 37.5-46.5% of coal ash, 12-17% of cement, 12-17% of lime powder, 12-17% of sodium bicarbonate, 1-2% of gypsum, 3-7% of water glass, 1-10% of tourmaline, and 0.5-2% of aspergillus fumigatus, wherein the sum of the percentages by weight of various components is 100%; (2), granulating: uniformly mixing various components to form a mixture, adding water into the mixture, wherein the addition amount of water is 30-40% of that of the mixture; uniformly stirring, and granulating to obtain raw ceramsite with the particle size of 3-8 mm; and (3), aging, drying and steaming the raw ceramsite at constant temperature to obtain the burn-free tourmaline biological ceramsite. The burn-free tourmaline biological ceramsite prepared by the preparation method provided by the invention has the characteristics of being low in cost and good in decolouration property.

Description

technical field [0001] The invention relates to the field of non-burning ceramsite, in particular to a preparation method of non-burning tourmaline biological ceramsite which can be used for decolorization of dye wastewater. Background technique [0002] At present, the treatment methods of printing and dyeing wastewater usually include biological method, physical adsorption method, chemical oxidation method, electrochemical method and photocatalytic technology, etc., but these methods are either too expensive or ineffective. Good decolorizer. The ceramsite prepared by the prior art has the defects of unsatisfactory physical and chemical properties such as acid dissolution rate and bulk density. How to deal with the decolorization of printing and dyeing wastewater has become an urgent problem to be solved. The Chinese patent application with the publication number CN103159348A discloses a method for treating the chroma of printing and dyeing wastewater by using fly ash cer...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08
CPCY02W30/91
Inventor 王宝娥周康群郭琇谭影娴陈群玉
Owner ZHONGKAI UNIV OF AGRI & ENG
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