Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

JPRSI Member Associations

Lake Water Purification by Ultra Fine Bubble Water

Water & Soil Water Quality Improvement / Water Management Technology Purification in Water Area

Technology / Service Summary

Ultra Fine Bubble (hereinafter referred to as “UFB”) can improve lake environment that is in oxygen-deficient condition due to decrease of dissolved oxygen (DO). This technology can purify water quality and bottom sediment, and preserve the water environment.

Purpose

UFB is applied to lake water that has become oxygen-deficient condition due to decrease of dissolved oxygen. Then the water quality and sediment environment can be improved. And the water environment is conserved by increase of dissolved oxygen.

Feature

・UFB is fine air bubbles, so that; non-floating and, improvement of retention and permeability to water.
・Ozone can be applied jointly.

Effect

・By passing lake water through UFB, it is possible to improve water quality and bottom sediment, such as elimination of oxygen-deficient condition and increase of transparency.

Reference

Applicable Regions / Countries

  • No restriction

Accomplishments

Japan

Related SDGs Goals

  • 3. Good Health and Well-being
  • 6. Clean Water and Sanitation
  • 11. Sustainable Cities and Communities
  • 14. Life Below Water

Lake Water Purification by Ultra Fine Bubble Water