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Method and device for preparing biogas by utilizing traditional Chinese medicine (TCM) dregs

A technology for traditional Chinese medicine dregs and traditional Chinese medicine waste residues, which is applied in biochemical cleaning devices, biochemical equipment and methods, enzymology/microbiology devices, etc.

Inactive Publication Date: 2012-09-19
XINDI ENERGY ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN 101544922A discloses that straw, pharmaceutical waste residue, brewing waste residue, etc. are fermented by photosynthetic bacteria, lactic acid bacteria, yeast, and biogas bacteria, and then dried to prepare biomass fuel, but it is not used to produce biogas

Method used

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  • Method and device for preparing biogas by utilizing traditional Chinese medicine (TCM) dregs
  • Method and device for preparing biogas by utilizing traditional Chinese medicine (TCM) dregs

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Such as figure 1 As shown, the device of the present invention includes a stirring tank 1 for stirring medicinal dregs, a feeding pump 2 for sending fermentation raw materials into a fermenter, a biogas fermenter 3, and a dreg for hydraulically agitating the fermenting raw materials arranged outside the fermenter Slurry pump 4, filter press for solid-liquid separation of fermented waste liquid (ie, fermented biogas slurry) 5, gas-liquid separation tank for preliminary purification of generated biogas 6, desulfurization device for desulfurization of biogas A tower 7 and a biogas storage tank 8; a stirrer is set in the stirring tank to stir the medicine dregs.

[0046] Grind 1 ton of traditional Chinese medicine dry residue (water content generally less than 5wt%) or wet waste residue (generally water content is higher than 5wt% to 40wt%, more generally 6-15wt%) ...

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Abstract

The invention provides a method and device for preparing high-quality biogas by utilizing traditional Chinese medicine (TCM) dregs. The method comprises the following steps: firstly breaking waste TCM dregs, adding water to wet the waste TCM dregs, then adding an inoculum fungicide and a nitrogen source for adjusting carbon-nitrogen ratios of the dregs to the wet dregs and then replenishing water into the dregs, stacking the dregs after stirring the dregs uniformly, covering the dreg stack with a plastic cloth to preferment the dregs for at least 2-3 days, then adding the stacked and retted dregs to a material mixing pond, delivering the dregs to a fermentation tank via a charging pump after adding biogas slurry and water to the material mixing pond to be stirred uniformly, sealing the fermentation tank for three-five days and generating crude biogas and then purifying the crude biogas in a gas-liquid separation tank and a devulcanizer or in an acid gas absorption device, thus obtaining the purified biogas. The method has the following positive effects: the waste TCM dregs are effectively utilized and turned into wealth, thus overcoming the difficulty that the previous TCM dregs are hard to process, are stacked nowhere and pollute the environment; and the preprocessed TCM dregs have high fermentation speed and gas production speed, the initial gas production time is shortened to about three days and the scope of application is wide.

Description

technical field [0001] The invention relates to a method and device for producing biogas by using traditional Chinese medicine dregs. The method for producing biogas by mesophilic anaerobic fermentation is performed by pre-treating traditional Chinese medicine dregs and using fresh biogas slurry as strains. It can also be used for fermentation treatment of other organic solid powder materials, such as mesophilic anaerobic fermentation treatment for fermentation pretreatment of straw, manure, various organic wastes, etc. The invention also relates to a device for producing biogas by using traditional Chinese medicine dregs. technical background [0002] In recent years, the research and development of traditional Chinese medicine and its preparations have received great attention from people, groups, organizations and national governments at home and abroad, and many new varieties of traditional Chinese medicine have been developed. At the same time, the rapid increase of ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C12M1/107C12M1/02
CPCY02E50/343C12M21/04C12M27/02C12M47/10C12M47/18Y02E50/30
Inventor 辛军韩海波梁欣
Owner XINDI ENERGY ENG TECH
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