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Method of biomass processing

A biomass treatment and biomass technology, applied in the direction of biological sludge treatment, waste treatment, biological organic part treatment, etc., to achieve the effect of cost reduction and environmental protection

Inactive Publication Date: 2007-05-23
株式会社净能开发 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, when there is no cooperation between farmers and horticulturalists, and there is no recipient, the compost made with great difficulty becomes useless and becomes the so-called second industrial waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0080] I. Hydrogen fermentation treatment

[0081] (1) Pre-cultivation of hydrogen-producing bacteria

[0082] A 300 ml Erlenmeyer flask was inoculated with 100 ml of PY medium supplemented with 0.1% glucose and hydrogen-producing bacteria, and cultured overnight in an anaerobic glove box (manufactured by BMW, USA, type 1024) at 37°C. In addition, the composition of PY medium is 10g peptone (peptone), 5g yeast (yeast extract), 500mg L-cysteine ​​HCl, 8mg CaCl, 8mg MgSO in 1L of water 4 , 40mg KH 2 PO 4 , 400mg NaHCO 3 , and 80mg NaCl, no carbon source.

[0083] (2) Hydrogen fermentation method

[0084] In a 3000ml Erlenmeyer flask, add 1400ml of PY medium containing 7.5g of starch or glucose as a source of hydrogen generation and 100ml of a pre-culture solution of hydrogen-generating bacteria. The insertion port of FC-10) and the pH adjustment NaOH liquid inflow port were closed with rubber plugs, and placed outside the anaerobic glove box. Keep warm in a constant tempe...

Embodiment 1

[0097] Embodiment one: reclaim hydrogen and biogas from biomass (starch)

[0098] (1) Hydrogen fermentation treatment of starch (starch)

[0099] Add 1400 ml of PY medium containing 7.5 g of starch and 100 ml of pre-culture bacterial liquid of hydrogen-producing bacteria (Clostridium beijerinkii (Clostridium beijerinkii) AM21B strain) into a 3000 ml Erlenmeyer flask, and start culturing in a constant temperature water tank at 37°C. Foaming was observed after two to three hours from the start of the heat preservation, and the volume of gas generated reached the highest around seven to eight hours. It takes tens of hours for the generation of gas to end. A total of 3750ml of hydrogen was produced. Fermentation liquid (waste liquid) which is the culture liquid after hydrogen fermentation was poured into the biogas fermentation tank in the unprocessed state.

[0100] (2) Biogas fermentation treatment by starch fermentation liquid

[0101] The fermented liquid (waste liquid) af...

Embodiment 2

[0108] Embodiment two: reclaim hydrogen and biogas from biomass (glucose)

[0109] (1) Hydrogen fermentation treatment of glucose

[0110] Dilute the PY medium with ion-exchanged water to 5 times the diluted PY medium, 1400ml of the culture solution after dissolving 7.5g of glucose, and 100ml of the pre-culture solution of hydrogen-generating bacteria (Clostridium beijerinkii (Clostridium beijerinkii) AM21B strain) were added In a 3000ml Erlenmeyer flask, culture was started in a constant temperature water tank at 37°C. After about two hours from the start of heat preservation, bubbles are generated, the volume of gas generated reaches the highest in about seven hours, and the generation of gas ends in more than ten hours. The total amount of hydrogen produced was 5750ml. The fermented liquid (waste liquid) after the hydrogen fermentation was poured into the biogas fermentation tank in an untreated state.

[0111] (2) Biogas fermentation treatment by glucose fermented liqui...

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Abstract

A novel method of biomass processing, in which while carrying out efficient fermentation of biomass, energy can be recovered without the use of plants and in which after the biomass processing the concentration of organic matter in waste liquid can be reduced. There is provided a method of biomass processing, comprising carrying out a hydrogen fermentation of biomass with the use of a hydrogen producing bacterium to thereby recover hydrogen. Further, a fermentation liquid occurring after the hydrogen fermentation is subjected to methane fermentation with the use of a methane bacterium to thereby recover methane. In this instance, at least an organic acid is contained in the fermentation liquid.

Description

technical field [0001] The present invention relates to biomass processing. In more detail, it relates to a new method capable of efficiently fermenting biomass, recovering energy without using plants, and reducing the concentration of organic substances contained in waste liquid after biomass treatment. Biomass processing methods. Background technique [0002] It is known to use a raw waste disposer when dealing with the huge amount of raw waste (biomass) discharged from the food production process. Such a raw garbage disposer has an aerobic bacterial flora, and the raw garbage is thrown into the aerobic bacterial flora to perform decomposition processing. [0003] However, at least one-tenth or more of the weight of the thrown-in raw garbage has not been processed, and there is a problem of remaining as immature residues. In addition, for example, when utilizing such immature residues as compost, since they cannot be used as compost as they are, they must be further fer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C01B3/00C02F11/04C10J1/00C12P3/00C12P5/02C12R1/145C12R1/01C12M1/00B01F7/16C01B3/02C02F3/34C05F17/00C10L3/06C12M1/107
CPCC05F17/0036B09B3/00C02F3/34C05F17/0027C12M21/04Y02E50/343C12M45/04C12M23/58C12P5/023C12R1/145C12P3/00C02F11/04Y02W30/20Y02P20/145Y02P20/59C05F17/20C05F17/50Y02E50/30Y02P20/129Y02W30/40C12R2001/145C12N1/205Y02E60/32
Inventor 田口文章须贝保德工藤靖博鹤见里香石原佐知枝
Owner 株式会社净能开发
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