| 摘要 |
PROBLEM TO BE SOLVED: To efficiently recover useless algae, such as sea lettuce, temporarily generated in large quantities and floating mud depositing on the water bottom, over a wide range of water depth. SOLUTION: Floating deposits, such as sea lettuce, temporarily generated in large quantities and floating mud depositing on the water bottom having no specific gravity difference between them and water and hardly sucked by an existing pump or the like due to their twining inside the pump or the like are blown up by compressed air discharged from a discharge port installed on the water bottom surface to be introduced into a suction pipe. These deposits are raised up to the water surface together with useless algae and floating mud floating around a suction port by a water flow accompanying a rapid rise of the compressed air and secondary air discharged into the suction port to be recovered. COPYRIGHT: (C)2009,JPO&INPIT
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