平田海大– Author –
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Not Just for Tap Water! 5 Surprising Fields Where Reverse Osmosis (RO) Membranes Are Making a Difference
Reverse osmosis (RO) membranes are the key technology behind seawater desalination, delivering safe drinking water to people around the world. But their applications extend far beyond public water supply systems. From household water pur... -
How Do We Turn Seawater into Tap Water?
— The Cutting Edge of Seawater Desalination: Turning the “Blue Ocean” into Drinkable Water — Roughly 97.5% of the Earth’s water is seawater. Only about 2.5% is freshwater available for human use. Despite this, only 0.8% of the world's to... -
Water as the “Most Vital Basic Infrastructure”: Who Owns It? — Understanding Privatization, International Conflicts, and the Lifeline of Local Communities
The 2019 amendment of Japan's Water Supply Act and the 25-year concession deal in Hamamatsu City have shaken the long-standing assumption that "water is a public good." With a history of water conflicts and the global debate on privatiza... -
How to Efficiently Use Emergency Membrane Water Purifiers!! – A Thorough Guide
"If only I had access to drinkable water on the spot during a disaster..." Many people have had this thought. Nowadays, it's easy to find emergency water purifiers for around 3,000 to 5,000 yen on sites like Amazon. Some of them claim th... -
How to Make Drinking Water at Home During a Disaster!
"Running out of bottled water reserves..." — In such a moment of crisis, these *household water purification techniques* could be your last resort.You don’t need an expensive purifier — with a little creativity, you can make drinkable wa... -
Major Earthquakes Don’t Have to Lead to Fires! Key Tips Across Three Disaster Phases to Stay Safe
For those of us living in major cities, one of the most critical disaster threats following an earthquake is a "large-scale fire," particularly "urban conflagrations." As witnessed during the Great Hanshin-Awaji Earthquake and the Noto P... -
Why Disasters in Major Cities Are Especially Devastating
In recent years, large-scale disasters caused by earthquakes and extreme weather events have occurred frequently. Among them, disasters in major urban areas are said to be particularly devastating due to their scale and far-reaching impa... -
About the Author of This Blog
"Water for 10 Billion Lives" — From Village Wells to Global Waterworks Hello, my name is Shunsaku Matsuo.Let me share my 25-year journey with water — in a slightly narrative form. With children on the path to a water source in Mushikiri ... -
Gravel Filtration: An Old Yet Innovative Water Treatment Technology!?
Sometimes, a traditional technology becomes surprisingly powerful when used in a new way. Gravel filtration is one such method—it may even transform the future of water supply systems. Gravel filtration may change the future of water sup...
