| 摘要 |
PROBLEM TO BE SOLVED: To provide an eel farming method that reduces the constraint of places, greatly increases the unit yield, is desirable even for environment and health, and is compatible with large-scale breeding.SOLUTION: An eel farming method is characterized as follows: an inclination is provided in the bottom in an eel farming water tank 1; a drain outlet 2 with an eel escape preventer provided at the lowest position of the inclination is connected with a reception water tank 3 installed outside the eel farming water tank 1 by a drain pipe 4; a settling tank 5 and a plurality of filtration tanks 6 following the settling tank 5 are disposed so as to surround an outer circumference of the eel farming water tank 1 adjacently to the reception water tank 3; and the drainage flowing out from the drain outlet 2 is made to serially pass through the inside of the settling tank 5 and the filtration tank 6. Water flow drive means for maintaining the water flow of the drainage is provided, and the treated waste water is returned into the eel farming water tank 1 again from the filtration tank 6 or a stored water tank 7 positioned in the most downstream, and then a pumping device 8 is operated and the pumped water is poured in the tank. Also, waste water treatment means is provided in which a water intake or ooze intake pipe is provided in the settling tank or the stored water tank and is connected to an adjacent hydroponic system or soil cultivation system. |
