Teperature important parameter for Efficient Biogas production.
Article A solar-assisted biogas system: A new approach
In this way pH values also correlated with biogas efficiency
Yes Absolutely. Temperature will define the type and activities of the microorganism involved in biogas production. Higher temperature will lead to higher activity of microorganism and thus methane production. Higher temperature will increase partial pressure of gas and thus CO2 solubility and thus availability. It will also affect pH. lower temperature will inverse it. Thus temperature affects biogas production in different way.
Yes temperature is an important parameter for increase in biogas production from cow dung. What I can suggest you, cow dung contains less ingredients and more bacteria. Bacteria in an anaerobic digester needs supplements for their population growth and survival, more the population more the biogas quantity and quality too. Check the pH and C/N ratio to the acceptable limit and add some supplementary feed stock which may have more glucose, fructose, nitrogen etc. such as food waste or any other organic waste.
Yes. In fact temperature is the most important parameter to increase the biogas yield from cattle manure up to a point i.e 35-37 deg C. Above this the increase would be marginal. Every 10 deg C drop in temperature is known to decrease the gas yield by about 50% and no biogas my be produced below 10 deg C. The impact of temperature becomes more pronounced as nothing else really goes wrong for biogas production from this feedstock. There is very little impact of efforts to alter other parameters occurring in normal course. .
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