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Straw carbon composite material and preparation method and application thereof

A technology of composite materials and straw carbon, which is applied in the field of aquaculture atmospheric environment purification and treatment, can solve the problems of high cost, single adsorption effect, and unstable adsorption performance.

Active Publication Date: 2021-05-18
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing adsorption deodorants still have disadvantages such as high cost, single adsorption effect, and unstable adsorption performance.

Method used

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  • Straw carbon composite material and preparation method and application thereof
  • Straw carbon composite material and preparation method and application thereof
  • Straw carbon composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]A straw carbon composite for breeding dung deodorant, including the following mass percentage content: 65% of pulverized straw carbon, 20% chlorite, 10% hypochlorite, surfactant 5 %.

[0041]The preparation method of the straw carbon composite includes the following steps:

[0042](1) In the hydrothermal reaction autoclave, the pulverized straw carbon, chlorite, hypochlorite, and surfactant are added to the hydrothermal, and then the water is added to form a mixture, heated to 100 ° C The mixture forms a subcritical or supercritical state and maintained for 30 min, the pressure is 10 MPa, and the suspension of the straw carbon composite is formed after completion;

[0043](2) Pour the straw carbon composite material formed by step (1) on the surface of the surface, drying drying under a nitrogen atmosphere, the drying temperature of 100 ° C, the time is 60 min, to obtain a straw carbon after dry activation Composite.

Embodiment 2

[0045]A straw carbon composite material for breeding dung deodorant, including the following mass percentage content: Crushing straw carbon 91%, 5% chlorite, 3% hypochlorite, surfactant 1 %.

[0046]The preparation method of the straw carbon composite includes the following steps:

[0047](1) In the hydrothermal reaction autoclave, the pulverized straw carbon, chlorite, hypochlorite, and surfactant are added, and then ethanol is added to form a mixture, heated to 150 ° C The mixture forms a subcritical or supercritical state and remains 35min, the pressure is 9 MPa, and the suspension of straw carbon composite is formed after completion;

[0048](2) Pour the straw carbon composite material formed by step (1) on the surface of the surface, drying drying under a nitrogen atmosphere, the drying temperature of 80 ° C, the time is 50 min, to obtain a straw carbon after dry activation Composite.

Embodiment 3

[0050]A straw carbon composite material for breeding dung deodorant, including the following mass percentage component: Crushing straw carbon 72%, chlorite 15%, hypochlorite 8%, surfactant 5 %.

[0051]The preparation method of the straw carbon composite includes the following steps:

[0052](1) In the hydrothermal reaction autoclave, the pulverized straw carbon, chlorite, hypochlorite, and surfactant are added to the hydrothermal reaction autoclave, and then the water is added to form a mixture, heated to 120 ° C The mixture forms a subcritical or supercritical state and remains 1 h, the pressure is 8 MPa, and the suspension of the straw carbon composite is formed after completion;

[0053](2) Pour the straw carbon composite material formed by step (1) on the surface of the surface, drying drying under a nitrogen atmosphere, the drying temperature of 120 ° C, the time is 40 min, and the dry activated straw carbon Composite.

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Abstract

The invention belongs to the technical field of breeding atmospheric environment purification treatment, and particularly relates to a straw carbon composite material and a preparation method and application thereof. In order to overcome the defects of an existing deodorization method, the invention provides a straw carbon composite material and a preparation method thereof, and the straw carbon composite material is applied to deodorization of excrement in the breeding industry. The straw carbon composite material prepared by the invention comprises the following components in percentage by mass: 65%-91% of straw carbon, 5%-20% of chlorite, 3%-10% of hypocholoride and 1%-5% of a surfactant. The preparation method comprises the following steps: mixing crushed straw carbon, a chlorite, a hypocholoride and a surfactant with water or ethanol to form a mixture, heating the mixture to a subcritical or supercritical state, and baking and drying the mixture in an inert gas atmosphere. The straw carbon composite material has adsorption and chemical deodorization properties at the same time, raw materials are easy to obtain, preparation is simple, operation is easy, residues are low, and the influence on the environment is small.

Description

Technical field[0001]The present invention belongs to the technical field of breeding atmospheric environment purification treatment, and is specifically related to straw carbon complex material and preparation method thereof and application thereof.Background technique[0002]With the development of my country's large-scale aquaculture, the pollution problems brought by farms to the surrounding environment are increasingly prominent. The feces emission of livestock and poultry is one of the main pollution sources of environmental issues. The livestock and poultry excrement itself is contained or released during the storage process with an amine substance, a sulfur-containing nitrogenated compound or the like. These harmful gases are seriously harmful, which will cause livestock to decrease in immunity, and increase in farming costs, and will also affect practitioners and their health. Therefore, in order to strengthen the pollution control of farm, it is imminent to develop green new...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/06C02F103/20C02F101/18C02F101/10
CPCC02F11/06C02F2303/02C02F2103/20C02F2101/101C02F2101/18Y02P20/54
Inventor 童红波王俊红王梦亮
Owner SHANXI UNIV
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