| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for treatment of water for processing into drinking water by the development of a bioreactor which can reduce nitrate nitrogen using an autotrophic bacteria to which hydrogen gas plays a role of hydrogen donor, and by which bacterial concentration in the reactor is elevated and nitrogen compounds can be decomposed efficiently. SOLUTION: Decomposition of nitrogen compounds in material water is carried out by the use of a bioreactor composed by modules bundled the bioreactor elements, that carry microorganisms including autotrophic bacteria surrounding hollow fibers, and a hydrogen supplying system.</p> |
