| 摘要 |
PROBLEM TO BE SOLVED: To provide a biogas treatment method and apparatus that have low cost and superior treatment efficiency.SOLUTION: In a biogas treatment method, a gas to be treated and a circulation liquid containing oxidative decomposition component to be treated are introduced into a gas-liquid contact column 1, which is equipped with a gas-liquid contact part having an electrically conductive microorganism carrier carrying microorganism, and are brought into gas-liquid contact in the gas-liquid contact part, wherein the oxidative decomposition component to be treated is subjected to oxidative decomposition by the microorganism. In the method, the oxidative decomposition of the oxidative decomposition component to be treated is performed in a condition, in which a positive electrode voltage is applied to the electrically conductive microorganism carrier composed of high temperature firing carbon wherein a ratio (P1/P2) of 1,580 cmpeak intensity (P1) and 1,360 cmpeak intensity (P2) in Raman spectrum is ≥0.85. The invention also includes a biogas treatment apparatus that performs the method. |
