| 摘要 |
A protein skimmer for removing impurities in a body of water comprising a first elongated passageway, a second upwardly extending elongated passageway, a fluid path between the passageways to allow fluid travelling in said first passageway to enter the second passageway and a source of air bubbles in fluid communication with the first passageway. The protein skimmer of the present invention allows for the combination of the co-current and the counter-current skimming actions without the need for additional air feeding means. This is achieved by displacing a body of water upwardly by the use of the air bubbles, which results in a co-current skimming action, and by providing an area for the body of water to flow downward, which, with the air bubbles' tendency to rise, results in a counter-current skimming action.
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