Method for improving biological hydrogen production yield
A technology for biological hydrogen production and production, applied in the direction of fermentation, can solve the problems of optimal conditions and yield of hydrogen production without anaerobic fermentation, and achieve the effect of resource utilization and cost reduction
Inactive Publication Date: 2011-11-16
SHANGHAI UNIV
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Problems solved by technology
However, there is no relevant report on using the initial compost leachate as a nutrient source, let alone using the response surface method to determine the optimal conditions and yield of anaerobic fermentation hydrogen production
Method used
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Embodiment 1
[0021] Embodiment one: see figure 1 In the present invention, a 500 mL Erlenmeyer flask, a 500 mL gas washing bottle, and a 1000 mL polywater tank are used to form a set of reaction devices, and 50 mL of granular sludge and 400 mL of test mixed liquid are added to the 500 mL Erlenmeyer flask, and mixed The liquid is obtained by mixing a certain proportion of landfill initial leachate with a certain content of glucose and a certain proportion of fruit juice wastewater. Seal the Erlenmeyer flask containing the mixed liquid and place it in a constant temperature water bath oscillator for anaerobic fermentation to produce hydrogen. The gas produced is discharged from the exhaust pipe above the liquid level and gradually enters the gas collecting bottle filled with water. The gas will The water in the gas collecting bottle is discharged into the water collecting tank, and the amount of gas produced is calculated according to the liquid level scale displayed in the gas collecting bo...
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The invention relates to a method for improving biological hydrogen production yield, and belongs to the technical fields of hydrogen production processes and environmental protection engineering. By the method, the feasibility of producing hydrogen by using percolate as an external nutrient source at an intermediate temperature is verified, and 1.60mol of molecular hydrogen is produced by 1mol of glucose at most and 469.74mL of hydrogen is accumulatively produced at most when 1L of percolate contains 6174.93mg of external glucose and the organic load of 1L of percolate is 3883.20mg chemical oxygen demand (COD) through prediction by a response surface model; the value of a verification experiment is generally close to a predicted value of the corresponding surface, which proves the reliability of an optimal value predicted by the model; acetic acid and butyric acid are the main soluble products in the experiment and account for about 44 percent and about 39 percent based on total volatile fatty acid; and the fermentation type of all reactions in the experiment is a butyric acid fermentation type.
Description
technical field [0001] The invention relates to a method for increasing the output of biological hydrogen production, which belongs to the technical field of hydrogen production technology and environmental protection engineering. Background technique [0002] As an efficient, clean and renewable fuel, hydrogen energy is attracting increasing attention. International hydrogen energy production processes mainly include electrolytic hydrogen production, pyrolysis hydrogen production, photochemical hydrogen production, radioactive hydrolysis hydrogen production, plasma electrochemical hydrogen production, fossil fuel hydrogen production and biological hydrogen production. These hydrogen production technologies all consume a large amount of fossil energy and cause environmental pollution during the production process. Biological hydrogen production is a bioengineering technology that uses the physiological metabolism of microorganisms to decompose organic matter to produce hyd...
Claims
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Inventor 刘强张晓磊边华丹周英梅李洋
Owner SHANGHAI UNIV