APPARATUS FOR REDUCING CONCENTRATION OF NUTRIENT SALTS IN SALT WATER

摘要

PROBLEM TO BE SOLVED: To provide a nutrient salts concentration reducing apparatus, a system, and a method for reducing the concentration of nutrient salts in salt water.

SOLUTION: In the nutrient salts concentration reducing apparatus, each of reducing units with different heights has a seaweed cultivation section for absorbing the nutrient salts; each of the reducing units other than the units at the lowest position among the multiple reducing units has a siphon pipe and a switching device; the reducing unit at the lowest position is connected to at least one of the multiple reducing units other than the unit at the lowest position via a circulation pump and the switching device; salt water can be sent from the higher reducing unit to the lower reducing unit; and salt water can be sent from the reducing unit at the lowest position to at least one of the reducing units other than the reducing units at the lowest position.

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