Life Hidden in Silent Waterways: A Revolution of Microorganisms (ca. 1995)
In 1995, the landscape of factory effluent in Japan was quietly changing. Memories of water pollution during Japan's period of rapid economic growth and intense pollution lawsuits eventually led to strict effluent regulations, forcing companies to restructure their technologies. This is where biological treatment technology, which relies on the power of microorganisms rather than chemistry, once again came into the spotlight.
The "activated sludge method," in which aerobic bacteria obtain oxygen to decompose organic matter in water, has been revived over the ages. The "biological membrane method," in which microorganisms settled on carriers work quietly, and the "anaerobic digestion method," which produces methane without the use of oxygen, also came into the spotlight. These methods were not mere purification devices, but were a collaborative effort with the life that breathed in the water.
Biological treatment is a technology that does not rely on chemicals, but rather is a natural process. Microorganisms continued to work at the bottom of the water as unsung heroes at a time when new environmental norms were emerging, such as the ISO 14001 Eco-Town concept.
It was a quiet revolution hidden in a silent waterway. Life healed the water polluted by man. Technology began to evolve in the form of life.
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