白腐真菌预处理高阶煤产甲烷研究

oal is a kind of macromolecular organic matter, and white-rot fungi of organic material has strong ability to degrade organic material. Use the high metamorphic degree of lean coal as the substrate, and through pretreatment by the white-rot fungi which conserved in laboratory to improve the lean coal's gas production rate. The results showed that the structure of coal was destroyed after biological pretreatment by white-rot fungi, and the conversion rate of CH4 increased to some extent. The gas production stage last 37 days, and the gas production reached peak in the 20 days or so. Methane concentrations reached 31%. To test pH before and after fermentation, the author found the pH value rise after reaction. This phenomenon illustrate less acetic acid produced, and biological gas generate mainly by CO2 reduction way.