Method for removing stink materials in biogas slurry

A biogas slurry and odor technology is applied in the field of removal of odorous substances in biogas slurry, which can solve the problems of limited application of biogas slurry, odor of biogas slurry, etc., and achieve the effects of broad application prospects, no pollution, and simple operation.

Inactive Publication Date: 2014-05-28
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ammonia, hydrogen sulfide, indole, and volatile phenols produced in the anaerobic fermentation of biogas digesters are the main substances that cause the odor of biogas slurry, which greatly limits its popularization and application.
There is no scientific and practical method for removing odorous substances in biogas slurry in the prior art

Method used

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  • Method for removing stink materials in biogas slurry

Examples

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Embodiment 1

[0028] In this example, the above method was used to deodorize 10 L of biogas slurry. The biogas slurry was taken from a biogas digester that had been in normal use for more than two months and was producing gas in the Zhouzhi area of ​​Xi'an. During the treatment process, according to the ozone input rate of 20g / hour, aerate with ozone for 2 hours, then add 25g of coconut shell powder activated carbon, and stir with a stirrer at 260 rpm for 30 minutes to complete the treatment of odorous substances in the biogas slurry. effective removal.

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Abstract

The invention discloses a method for removing stink materials in biogas slurry. The method is scientific and practical and adopts an ozone aeration oxidation method and powdered activated carbon adsorption method combined mode to treat the biogas slurry, so that the stink materials in the biogas slurry can be removed, and the nutrient ingredients in the biogas slurry are not influenced.

Description

technical field [0001] The invention relates to a method for removing odorous substances in biogas slurry. Background technique [0002] As one of the most effective ways to solve livestock and poultry manure pollution, biogas technology has developed rapidly in recent years, and its potential social, environmental and economic benefits have been recognized by the society. [0003] Biogas slurry is rich in macronutrients such as nitrogen, phosphorus, and potassium, and medium and micronutrients such as calcium, copper, iron, zinc, and manganese. It is a natural green fertilizer that promotes plant growth and is recommended for the production of pollution-free vegetables. One of them is an organic compound fertilizer with both quick and slow effects. Ammonia, ammonium salts and some antibiotics in biogas slurry have obvious effects on crop pests. Using biogas slurry to control pests and diseases has no pollution, no residual toxicity, and no drug resistance. Therefore, peopl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
Inventor 刘永军张晗张爱宁
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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