| 摘要 |
<p>An aeration diffuser comprises a gas supply means, a membrane and a frame for fastening and sealing the membrane. The membrane comprises at least one layer of fibers and has a porosity of at least 50 %. The aeration diffuser is characterised by a decreased risk of clogging up. The bubbles genreated over the entire surface of the membrane are homogenous in diameter and the diameter of the bubbles remains constant during the whole period of aeration.</p> |
