| 摘要 |
<p>A purpose is to efficiently remove foams produced, for example, when water is aerated, and another purpose is to improve water or air. These purposes are achieved by an air-water treating device characterized by comprising a defoaming device outer vessel characterized by comprising a core having spiral grooves in the outer peripheral surface, and a cylinder having the core inserted therein, an inner cylinder inserted in the outer vessel, a permeable block inserted in the inner cylinder, and a core inserted in the inner cylinder and disposed above the permeable block, the permeable block having an air feed pipe communicating therewith from outside, the outer peripheral surface of the core being formed with spiral grooves.</p> |
