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Fukuoka City ― Practical Application of Reclaimed Water Systems Mid-1990s The practical application of reclaimed water systems in Fukuoka City during the mid-1990s symbolized an era when Japanese cities were confronted with water resource constraints as a real challenge. In 1994, northern Kyushu suffered a record-breaking drought, leading to prolonged water supply restrictions that exposed the vulnerability of urban life. Amidst this, Fukuoka City's reclaimed water system gained attention as a mechanism that highly purifies treated sewage water for reuse in non-potable applications like toilet flushing. It was emphasized that this system allowed apartments and large buildings to maintain normal usage even during droughts, minimizing disruption to daily life. At the time, Japan's water administration was shifting from policies focused on quantity assurance, like dam construction, towards reevaluating water usage patterns, and reclaimed water represented a symbolic technology
of this transition. The concept of rethinking sewage not as waste but as a reusable resource also represented an attempt to link environmental technology with urban planning, redesigning urban infrastructure from within. Fukuoka City's case demonstrated the system's effectiveness through the emergency of drought, proving reclaimed water to be a practical infrastructure enhancing urban resilience. This made it a significant milestone in mid-1990s urban environmental technology.