| 摘要 |
PROBLEM TO BE SOLVED: To provide a water treatment apparatus and water treatment method that efficiently perform treatment on organic material in rearing water used in an aquarium, cultivation, etc. to enable stable supply of clarified rearing water whose chromaticity is reduced.SOLUTION: A water treatment apparatus 1 for circulating at least part of rearing water for aquatic biotas to perform treatment on organic material included in the rearing water comprises: a visible part absorbance measurement apparatus 14 for measuring visible part absorbance of rearing water from a water tank 10 in which the aquatic biotas are reared; an ozone treatment apparatus 16 that has an ozone generator 24 for performing organic material treatment on the rearing water; return piping 48 for returning at least part of treatment water on which the organic material treatment has been performed, to the water tank 10; and a control unit 30 for making the measured visible part absorbance and treatment strength of the ozone treatment apparatus 16 be interlocked.SELECTED DRAWING: Figure 1 |
