Water Purification
Further information: Organisms_used_in_water_purification Further information: Treatment_pondIn water purification, Yellow Iris (I. pseudacorus) is used. The roots are usually planted in a substrate (e.g. lava-stone) in a reedbed-setup. The roots then improve water quality by consuming nutrient pollutants, such as from agricultural runoff.
Read more about this topic: Iris (plant)
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“Milton says, that the lyric poet may drink wine and live generously, but the epic poet, he who shall sing of the gods, and their descent unto men, must drink water out of a wooden bowl. For poetry is not “Devil’s wine,” but God’s wine.”
—Ralph Waldo Emerson (1803–1882)