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Biogas fermentation accelerant and preparation method thereof

A technology of biogas fermentation and accelerator, applied in the direction of fermentation, waste fuel, etc., can solve the problems of slow start of fermentation, low efficiency of production period, and restrictions on the promotion and popularization of biogas projects

Inactive Publication Date: 2013-08-21
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are many problems in the actual promotion and application of biogas, such as: slow start of fermentation, low methane content, low production efficiency or even no gas production, etc. These problems restrict the promotion and popularization of biogas projects

Method used

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  • Biogas fermentation accelerant and preparation method thereof
  • Biogas fermentation accelerant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: Effect of biogas fermentation accelerator on fermentation start-up time and gas production

[0010] In this experiment, cow dung was selected as the substrate for fermentation in a 1L fermenter, and the fermentation was run for 60 days. In the process of biogas fermentation, the fermentation with iron, cobalt, nickel and zinc metal elements alone, the biogas fermentation with this accelerator and the biogas fermentation without adding any substances were compared, and the start-up time of biogas fermentation in each group was compared, so as to prove that the biogas Additives can promote the start of biogas fermentation to a certain extent.

[0011] application:

[0012] Experimental group 1: Biogas fermentation was carried out in a 1L fermenter with cow dung as the substrate, ferric chloride was prepared into a concentrated salt solution, and 0.1mg / L / d was fixed into the reactor with a syringe every day, and the gas was collected by a drainage collector....

Embodiment 2

[0021] Example 2: Fermentation was carried out in a 1L fermenter by selecting cow dung, pig manure, and sheep dung as substrates. During the biogas fermentation, the biogas fermentation with this accelerator was compared with the biogas fermentation without adding any substances. The biogas The fermentation time was 60 days, and the total gas production, methane content in biogas, and COD removal rate of each group were compared, which showed that the biogas fermentation accelerator had a good promoting effect on various indicators of biogas fermentation.

[0022] Contrast group 1: The cow dung substrate was selected for fermentation in a 1L fermenter. During the process of biogas fermentation, this accelerator was added to the fermenter for biogas fermentation every day. The gas collection was carried out by drainage and gas collection. The COD removal rate was based on the reaction Calculation of COD values ​​before and after

[0023] Contrast group 2: pig manure substrate w...

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Abstract

The invention discloses a preparation method of a biogas fermentation accelerant. The fermentation accelerant comprises trace metal elements such as Fe, Co, Ni and Zn. The preparation method comprise the following steps of preparing a thick salt solution in a chloride form; adding quantified thick salt solution into a fermenting methane pool every day, then stirring for well mixing the metal elements in fermentation liquor. The accelerant has good effect for biogas fermentation taking cow dung, pig manure and sheep manure as raw materials, and has good immediate effect on methanogens in biogas fermentation; if the accelerant is added in biogas fermentation, the methane yield can be improved and the methane content of the methane can be improved, the removal rate of COD (chemical oxygen demand), TS (thymidylate synthase) and VS can be obviously improved, and the accelerant has good prospect for promotion and application of the biogas fermentation.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a biogas fermentation accelerator and a preparation method thereof. The accelerator can effectively increase the start-up time in the biogas fermentation process, accelerate biogas production, increase gas production, and is safe and environmentally friendly. It has good ecological and social benefits. Background technique [0002] Biogas is a clean and efficient high-quality energy, the main component is CH 4 , the use of biogas can not only solve the problem of farmers' living energy, relieve energy tension, but also use waste to reduce environmental pollution. , with the vigorous promotion of new rural construction and the rapid development of aquaculture, the development of biogas industry has shown unprecedented gratifying situation. Various specifications of biogas facilities have been greatly improved, especially the application of solar energy, so that t...

Claims

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Application Information

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IPC IPC(8): C12P5/02
CPCY02E50/343Y02E50/30
Inventor 鲁建江耿钊童延斌邓辉赵思峰李俊华
Owner SHIHEZI UNIVERSITY
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