Preparation method of biomass energy block capable of generating biogas

A technology of biomass energy and biogas, which is applied in the direction of biological sludge treatment, waste fuel, fermentation, etc., can solve the problems of low efficiency and high comprehensive development cost, and achieve the effects of inhibiting ammonification treatment, improving efficiency, and improving efficiency

Inactive Publication Date: 2013-05-08
SHAANXI UNIV OF SCI & TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] At present, the main reason why it is difficult to popularize the technology of straw anaerobic fermentation to produce straw biogas is that the existing anaerobic fermentation technology has low efficiency and high comprehensive development cost. The research and development of efficient anaerobic fermentation technology and low-cost operation system Difficulties that must be overcome in the field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) According to the number of parts by mass, 50 parts of 3-8cm long corn stalks, 10 parts of pig manure, 0.02 parts of cellulase, 3 parts of urea, 1 part of papermaking wastewater anaerobic treatment sludge, 4 parts Calcium carbonate mixed to make a mixture;

[0027] 2) Adjust the water content of the mixture to 46% with water, then press the mixture into block mixture, vacuum pack the block mixture with plastic film, seal the block mixture inside the plastic film, and then store the mixture at 15°C Carry out ammonification fermentation treatment for 20 days;

[0028] 3) Punch holes in the plastic film to evaporate the water in the block mixture treated by ammonification fermentation, and obtain the biomass energy block.

Embodiment 2

[0030] 1) According to the number of parts by mass, 65 parts of 3-8cm long wheat straw segments, 5 parts of human excrement, 0.15 parts of cellulase, 5 parts of ammonium carbonate, and 3 parts of tanning wastewater anaerobic treatment sludge , 2 parts of kaolin are mixed to make a mixture;

[0031] 2) Adjust the water content of the mixture to 35% with water, then press the mixture into block mixture, vacuum pack the block mixture with plastic film, seal the block mixture inside the plastic film, and then store the mixture at 35°C Carry out ammonification fermentation treatment for 10 days;

[0032] 3) Punch holes in the plastic film to evaporate the water in the block mixture treated by ammonification fermentation, and obtain the biomass energy block.

Embodiment 3

[0034] 1) According to the number of parts by mass, 57 parts of 3-8cm long rice straw segments, 12 parts of cow dung, 0.08 parts of cellulase, 2 parts of ammonium sulfate and urea mixture, 4 parts of beer wastewater anaerobic treatment sewage The magnesia of mud, 5 parts mixes, and makes mixture;

[0035] 2) Adjust the water content of the mixture to 50% with water, then press the mixture into block mixture, vacuum pack the block mixture with plastic film, seal the block mixture inside the plastic film, and then store the mixture at 30°C Carry out ammonification fermentation treatment for 12 days;

[0036] 3) Punch holes in the plastic film to evaporate the water in the block mixture treated by ammonification fermentation, and obtain the biomass energy block.

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Abstract

The invention provides a preparation method of a biomass energy block capable of generating biogas. The preparation method comprises the following steps of: firstly, mixing plant straw sections, excrements, cellulose, an aminating agent, anaerobic sludge and a pH (Potential Of Hydrogen) stabilizing agent to prepare a mixed material; then adjusting moisture content of the mixed material by using water, then pressing the mixed material into blocky mixed material, then packaging the blocky mixed material in a vacuum manner by using a plastic film to seal the blocky mixed material inside the plastic film, and carrying out the ammoniation and fermentation treatment at 15-30 DEG C; and then forming holes in the plastic film to evaporate moisture in the blocky mixed material after the ammoniation and fermentation treatment so as to obtain the biomass energy block. The preparation method of the biomass energy block capable of generating the biogas is low in cost and high in gas generation efficiency; and the prepared biomass energy block is convenient to use.

Description

technical field [0001] The invention belongs to the technical field of biomass energy, and in particular relates to a preparation method of a biomass energy block capable of producing biogas. Background technique [0002] According to statistics, at present, my country's annual output of straw is about 700 million tons, and the amount of remaining straw is about 400 million tons. The random dumping and random burning of the remaining straw has caused a large number of social, economic and ecological problems such as air pollution, fire accidents, and traffic jams. It is urgent to find new ways of utilization. At the same time, as a renewable energy source, straw contains huge biomass energy. The use of anaerobic fermentation technology can convert crop straw into straw biogas, commonly known as "straw biogas". Straw biogas is mainly methane, which can be directly burned and used to generate electricity. The residue produced after fermentation is a kind of organic ecologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C12P19/14C02F11/04
CPCY02E50/343Y02E50/30
Inventor 马兴元胡雪丽张淑芳
Owner SHAANXI UNIV OF SCI & TECH
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