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Bacterium-restraining haydite and preparation method thereof

A technology of ceramsite and particle size, which is applied in the field of antibacterial agents and their preparation, can solve the problems of poor safety, easy decomposition, short service life, and difficulty in popularization and application of organic antibacterial agents, and achieves easy decomposition, increased oxidation-reduction potential, The effect of broad application prospects

Inactive Publication Date: 2009-07-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problems of poor safety, poor heat resistance, easy decomposition and short service life of existing organic antibacterial agents; natural antibacterial agents mainly use natural plants as extracts, waste resources, and have certain difficulties in popularization and application. A kind of antibacterial ceramsite and preparation method thereof

Method used

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  • Bacterium-restraining haydite and preparation method thereof
  • Bacterium-restraining haydite and preparation method thereof
  • Bacterium-restraining haydite and preparation method thereof

Examples

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specific Embodiment approach 1

[0013] Embodiment 1: In this embodiment, the antibacterial ceramsite is composed of 30-80 parts of carrier, 2-6 parts of molybdate, 0.01-2 parts of silver salt, 0.01-2 parts of copper salt by weight, 2-6 parts of nano-ZnO, 6-10 parts of sludge powder with particle size of 0.05-1.0mm, 3-8 parts of pore former, 0.08-2 parts of binder and 10-20 parts of glaze former Made by mixing, drying, grinding, calcining and regrinding.

[0014] The carrier is composed of 50-800nm ​​(nanometer or submicron) tourmaline, zeolite and shale with a particle size of 0.1-30μm, and the mass ratio of tourmaline, zeolite and shale is 4-8:1-4: 1. The molybdate is ammonium molybdate. The silver salt is silver sulfate or silver chloride. The copper salt is copper sulfate or copper nitrate. The pore former is CS. The binder is SF. The glazing agent is low temperature glaze.

[0015] The sludge powder is obtained from the secondary sedimentation sludge of Harbin Taiping Domestic Sewage Treatment Pla...

specific Embodiment approach 2

[0017]Embodiment 2: The difference between this embodiment and Embodiment 1 is that the bacteriostatic ceramsite is composed of 35-65 parts by weight of carrier, 3-5 parts of molybdate, 0.1-1 part of silver salt, 0.1 ~1 part of copper salt, 3-5 parts of nano-ZnO, 7-9 parts of sludge powder with particle size of 0.05-1.0mm, 4-6 parts of pore former, 0.1-1.5 parts of binder and 12 parts of ~18 parts of glazing agent is made by mixing, drying, grinding, calcining and regrinding. Others are the same as the first embodiment.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the antibacterial ceramsite is composed of 50 parts by weight of carrier, 4 parts of molybdate, 0.5 part of silver salt, 0.5 part of copper salt, 4 parts of Parts of nano-ZnO, 8 parts of sludge powder with particle size of 0.05-1.0mm, 5 parts of pore former, 1 part of binder and 15 parts of glazing agent are mixed, dried, ground, calcined and regrind. . Others are the same as the first embodiment.

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Abstract

A bacteriostatic ceramsite and a preparation method thereof relate to a bacteriostatic agent and a preparation method thereof. It solves the problems of poor safety, poor heat resistance, easy decomposition and short service life of existing organic antibacterial agents. Antibacterial ceramsite is made of carrier, molybdate, silver salt, copper salt, nano-ZnO, sludge powder with a particle size of 0.05-0.08mm, pore-forming agent, binder and glaze-forming agent; the preparation method is: 1. Add the carrier to deionized water to adjust the pH value; 2. Add molybdate, silver salt, copper salt, nano-ZnO, add dispersant, and stir in the dark; 3. Separation by vacuum filtration and deionized water Cleaning and drying; 4. Adding sludge powder, pore forming agent, binder and glaze forming agent, grinding, adding deionized water; 5. Natural drying after molding; 6. Calcining. The invention adopts nanometer or submicron tourmaline, zeolite and shale as carriers, uses surface modification, ion exchange and solid-phase synthesis method, not only effectively increases molybdenum loading, but also improves the bactericidal effect of the bacteriostatic agent.

Description

technical field [0001] The invention relates to a bacteriostatic agent and a preparation method thereof. Background technique [0002] In recent years, with the accelerated development of the national economy, the pollution of industrial wastewater, especially sulfate wastewater, has become quite serious. The groundwater of many large cities in my country has been polluted by sulfates to varying degrees. Sulfuric acid-containing hydrochloric acid wastewater directly discharged into the water body without treatment will acidify the receiving water body, reduce the pH value of the water body, endanger aquatic organisms, and cause potential corrosiveness; this type of acidic wastewater will also damage the soil structure and reduce crop yields. In particular, the sulfate-reducing bacteria in the oil field multiply and produce a large amount of sulfide, which brings serious harm to the oil field production and has become a very important problem in oil field production. At pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B38/02C04B33/00
Inventor 魏利马放周皓冯奇沃原孙伟王博
Owner HARBIN INST OF TECH