| 摘要 |
<P>PROBLEM TO BE SOLVED: To swiftly degrade and remove a nitrogen component and a phosphate component while swiftly separating pollution substances contained in the drainage from a hydroponic bed. <P>SOLUTION: The hydroponic device includes: a stirring tank 1 to which the drainage from the hydroponic bed 10 is fed; a coagulant feeding device 2 for feeding a coagulant into the stirring tank 1; a stirrer 3 for stirring the inside of the stirring tank 1; a waste container 4 into which the pollution substances coagulated and settled in the stirring tank 1 flow; a filtering tank 5 to which the drainage of the pollution substances separated in the stirring tank 1 is fed; and a treatment tank 6 to which the drainage from the filtering tank 5 is fed for degrading and removing the nitrogen component and phosphate component contained in the fed drainage with microorganism. In the hydroponic device, the pollution substances contained in the drainage fed into the stirring tank 1 are coagulated and settled by the coagulant to flow into the waste container 4. The drainage from which the pollution substances are removed is filtered in the filtering tank 5, and the pollution substances are removed. Then, the nitrogen component and phosphate component are further removed in the treatment tank 6 from the drainage from which the pollution substances are removed, and the drainage is discharged. <P>COPYRIGHT: (C)2012,JPO&INPIT |
