Efficient process of preparing hydrogen with botanical waste
A technology of plant matter and waste, applied in the biological field of plant matter waste treatment and resource utilization, to achieve the effects of improving degradation efficiency, improving hydrogen production efficiency, and saving energy
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Embodiment 1
[0018] 1. Collect the harvested corn stalks, dry them in the sun for 5 days, and use a grinder to crush the stalks into particles with a diameter less than 5mm.
[0019]2. Take 200ml of rumen juice from the fistula goat and quickly transfer it to a 5-liter fermenter, add 80g of corn stalk powder and 3.8 liters of Peffin buffer, keep the pH in the reactor at 6.0-6.4, the temperature at 32°C, and the stirring rate at 60 rpm / minute. The addition rate of straw powder was maintained at 30g / L / d, the hydraulic retention time gradually decreased from 24 hours to 18 hours on the 6th day and remained unchanged, and the residence time of straw powder in the reactor was 60 hours. The composition of the components in the produced gas was detected every day. When there were only hydrogen and carbon dioxide in the gas components and no methane was detected for two consecutive weeks, the methanogenic bacteria were completely eliminated and the domestication of rumen microorganisms was comple...
Embodiment 2
[0025] 1. Collect household garbage and remove inorganic substances contained in it, such as stones, iron filings, etc. After 5 days in the cool sun, it was pulverized into particles smaller than 6mm.
[0026] 2. Take 700ml of rumen fluid from the flaccid sheep and quickly transfer it to a 5-liter fermenter, add 80g of crushed plant matter organic waste and 3.3 liters of Peffin buffer to maintain the pH in the reactor at 6.3-6.7, and the temperature at 37°C. The material residence time is 60 hours, because the plant matter organic waste contains about 10-30% inorganic matter and is easy to precipitate, so the stirring frequency is changed to 30 seconds / minute, and the stirring speed is 90 revolutions / minute. The addition rate of primer remained at 40g / L / d; the hydraulic retention time gradually decreased from 24 hours to 12 hours on the 6th day and remained unchanged. The composition of the components in the produced gas was detected every day. When there were only hydrogen a...
Embodiment 3
[0032] 1. Harvest fresh cattail grass from the pond, and use a beater to break it into a slurry with a length of less than 8mm.
[0033] 2. Take 1200ml of rumen juice from the yellow cattle with flaccid tubes and quickly transfer it to a 5-liter fermenter, add 80g of cattail grass and 3.5 liters of Peifen buffer to maintain the pH in the reactor at 6.3-6.8, and the temperature is 41°C. The residence time in the vessel was 60 hours, the stirring frequency was 30 seconds / 2 minutes, and the stirring rate was 80 revolutions / minute. The addition rate of cattail grass remained at 20g / L / d; the hydraulic retention time gradually decreased from 24 hours to 18 hours on the 6th day and remained unchanged. The composition of the components in the produced gas was detected every day. When there were only hydrogen and carbon dioxide in the gas components and no methane was detected for two consecutive weeks, the methanogenic bacteria were completely eliminated and the domestication of rumen...
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Abstract
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