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Naturally friendly eco-friendly method that restores natural ecosystem by using fish that restores river ecosystem while purifying polluted river water naturally by discharging heavy river water
Naturally friendly eco-friendly method that restores natural ecosystem by using fish that restores river ecosystem while purifying polluted river water naturally by discharging heavy river water
The present invention relates to an environmentally friendly method for restoring a natural ecosystem using a fishway for primarily discharging clean river water having a great specific gravity, naturally purifying polluted river water, and restoring a river ecosystem to purify polluted river water flowing to a river by forming a fishway for ecosystem restoration and discharging polluted river water flowing to the river after purifying it; and to maintain a predetermined amount of river water by preventing river water from being completely discharged through the bottom water discharge passage of a floodgate during a dry season.
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