Method for performing quick anaerobic fermentation on chicken manure by supplying carbon source by using straws

A technology for anaerobic fermentation and carbon source supplementation, which is applied in the fields of fermentation, application, and preparation of organic fertilizers. It can solve the problems of insufficient gas production in chicken manure fermentation and easy acidification in the fermentation process. It achieves good results, is easy to popularize, and uses methods simple effect

Inactive Publication Date: 2011-09-07
江苏加德绿色能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for producing biogas by mixed fermentation of chicken manure and straw, which can improve the anaerobic fermentation conversion of chicken manure, in order to overcome the shortage of chicken manure fermentation gas production in the prior art and the easy acidification of the fermentation process. Rate

Method used

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  • Method for performing quick anaerobic fermentation on chicken manure by supplying carbon source by using straws
  • Method for performing quick anaerobic fermentation on chicken manure by supplying carbon source by using straws
  • Method for performing quick anaerobic fermentation on chicken manure by supplying carbon source by using straws

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Embodiment 1

[0041] (1) Choose 160kg of rice straw without toxic substance pollution, and crush it manually or mechanically, with a length of 1-2cm. Wet the crushed stalks with inoculum according to the weight ratio of material to water 1:2, mix the ingredients and seal the stack for 5-6 days.

[0042] (2) Put the mixture of stacked straw and inoculum into the fermenter, add 1300 kg of fresh chicken manure with a moisture content of 80%, add water to prepare a mixture with a moisture content of about 94%, and adjust the pH to 7.2.

[0043] (3) Add 2‰ (volume) of the compound high-efficiency microbial agent, the microbial agent consists of 3 parts by weight of E. coli fermentation broth, 5 parts by weight of Trichoderma fermentation broth, 2 parts by weight of Pseudomonas fluorescens fermentation broth, subtilis 8 parts by weight of bacillus fermented liquid are combined. Stir evenly, seal the lid, anaerobic fermentation at 35±1°C, record gas production with an anti-corrosion gas flow mete...

Embodiment 2

[0047] (1) Take 1200 kg of fresh chicken manure from the chicken farm, add water to make a mixture with a moisture content of about 94%, and add it to the fermenter.

[0048] (2) Add an inoculum accounting for 10% of the volume of the mixture of chicken manure and water, and adjust the pH to 7.3.

[0049] (3) After 3 days of anaerobic fermentation at 35±1°C, add 240 kg of crushed straw with a length of 1-2 cm, add water to adjust the moisture content to 91-92%, and mix well.

[0050] (4) Add 3‰ (volume) of compound high-efficiency microbial agent, which can be composed of 5 parts by weight of Escherichia coli fermentation broth, 8 parts by weight of Trichoderma fermentation broth, 9 parts by weight of Pseudomonas fluorescens fermentation broth, 6 parts by weight of bacillus fermented liquid are combined. Stir well and cover. Anaerobic fermentation at 35±1°C, with regular stirring, anti-corrosion gas flow meter to record gas production, and connect air bag to collect biogas. ...

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Abstract

The invention relates to a method for performing quick anaerobic fermentation on chicken manure by supplying a carbon source by using straws. The fermentation method of composting the straws and then mixing the straws with the chicken manure comprises the following steps of: crushing the harvested straws by a manual or mechanical method, wherein the crushed straws are 1 to 2 centimeters in length; wetting the crushed straws according to the weight ratio of the material to the water of 1:2 with an inoculum; stirring and sealing to compost for 3 to 7 days; throwing the composted mixture of the straws and the inoculum into a fermentation tank; adding a proper amount of fresh chicken manure and adding water to prepare a mixture with the water content of about 91 to 95 percent; and performing wet type anaerobic fermentation at the temperature of 35+/-5 DEG C under stirring to produce methane, wherein the methane is produced within 12 hours during fermentation and the fermentation time is 12 hours to 5 days. By the method, the methane yield of the chicken manure is increased; gas-producing speed is increased; acidification is performed difficultly; and straw solid content and chicken manure solid content can be further reduced. The method has the advantages of quick response, low cost, simple using method, easiness in popularization and the like and can be popularized and applied.

Description

technical field [0001] The invention relates to a rapid anaerobic fermentation method of chicken manure using straw to supplement carbon source, which belongs to the anaerobic fermentation technology of livestock and poultry manure. Background technique [0002] At present, large-scale and intensive farms are developing vigorously, and the livestock and poultry manure produced are increasingly affecting people's daily life. Chicken manure is one of the pollutants produced by large-scale chicken farms. Because chicken manure often contains a large number of pathogenic bacteria and pest eggs, if it is directly applied to the soil without high-level harmless treatment, it will easily lead to the spread of pest eggs and pathogenic bacteria. The high content of volatile nitrogen has a great impact on the surrounding air and other environments, so there is an urgent need for harmless and odorless treatment of chicken manure. At present, the treatment of livestock and poultry anim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C12P5/02
CPCY02E50/343Y02E50/30Y02W30/40
Inventor 周楚新支银芳孙珊
Owner 江苏加德绿色能源有限公司
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