| 摘要 |
<p>An aeration nozzle (1) has, provided to one end thereof: an air supply port (16a) connected to an aeration pump (13); and a waste-water suction port (17) into which waste water inside processing tanks (3, 4) is sucked. A micro-bubble generation means (18), which mixes air supplied from the air supply port (16a) with the waste water sucked in from the waste-water suction port, and generates micro-bubbles (9), is provided facing the air supply port (16a). A plurality of blades (22) provided to cylindrical bubble-generation bodies (19a, 19b) configuring the micro-bubble generation means (18) are moulded such that tips thereof face each other at the centre of the bubble generation bodies (19a, 19b), and are formed using an elastic member (such as rubber). As a result, the plurality of blades (22) are configured such that tip parts thereof bend starting from base parts thereof.</p> |
