A method of microwave/hydrogen peroxide treatment of cow dung fermentation biogas slurry

A technology of hydrogen peroxide and microwave catalytic oxidation, which is applied in the fields of oxidized water/sewage treatment, light water/sewage treatment, animal husbandry wastewater treatment, etc. , High processing efficiency, the effect of reducing processing load

Active Publication Date: 2021-07-27
黑龙江翰恒环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem that the existing cow dung biogas slurry has a large amount and is difficult to handle, and provides a microwave / hydrogen peroxide method for treating cow dung fermented biogas slurry

Method used

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  • A method of microwave/hydrogen peroxide treatment of cow dung fermentation biogas slurry
  • A method of microwave/hydrogen peroxide treatment of cow dung fermentation biogas slurry

Examples

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specific Embodiment approach 1

[0025] Specific embodiment one: a kind of method of microwave / hydrogen peroxide treatment cow dung fermented biogas liquor in this embodiment, specifically carry out according to the following steps:

[0026] 1. Preheating stage: the biogas slurry is preheated to 40-50°C through a microwave reactor;

[0027] 2. Microwave / hydrogen peroxide treatment: use inorganic acid to adjust the pH of the biogas slurry treated in step 1 to 3, and then add H 2 o 2 , put it under microwave conditions, stir at the same time, keep for 4-5 minutes, turn off the microwave source, take it out, and let it stand at room temperature for 1-1.5 hours, and complete the method of microwave / hydrogen peroxide treatment of cow dung fermentation biogas slurry.

specific Embodiment approach 2

[0028]Embodiment 2: The difference between this embodiment and Embodiment 1 is that the power of the microwave reactor in Step 1 is 300W. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in step two, the inorganic acid is concentrated sulfuric acid with a mass concentration of 98%. Others are the same as in the first or second embodiment.

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Abstract

A microwave / hydrogen peroxide method for treating cow dung fermented biogas liquor, the invention relates to the field of microwave / hydrogen peroxide process pretreatment of cow dung fermented biogas liquor. The invention aims to solve the technical problem that the existing cow dung biogas liquid has a large amount and is difficult to handle. Method: 1. Preheat biogas slurry through microwave reactor; 2. Treat with microwave / hydrogen peroxide. The invention has the advantages of simple operation, reduced energy consumption, shortened oxidation time, lowered cost and lightened subsequent processing load. The invention is used to improve the settling performance of biogas slurry solid particles, reduce the concentration of pollutants in the supernatant, and reduce the load for the subsequent treatment of the supernatant.

Description

technical field [0001] The invention relates to the field of microwave / hydrogen peroxide process pretreatment of cow dung fermentation biogas liquor. Background technique [0002] Biogas engineering is used as livestock and poultry manure treatment, and the energy recovery and utilization technology has been developed rapidly in recent years. The biogas slurry produced by anaerobic fermentation meets the application conditions, and the best way to dispose of it is field fertilization. However, there is not enough land around the biogas projects of most farms for consumption, and some biogas slurry has excessive heavy metals, and direct agricultural use will cause serious environmental problems. At the same time, the foul odor released by biogas slurry may include inorganic substances such as hydrogen sulfide and a large number of extremely complex volatile odorous organic compounds. Some substances have carcinogenic effects, which increases the difficulty in the treatment o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/30C02F1/72C02F103/20
Inventor 高大文张明慧
Owner 黑龙江翰恒环保科技有限公司
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