Author Archives: Helmi Ansari

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Biosand Filters: How they work, and how they change lives

The heart of GROSCHE is our Safe Water Project. It has provided safe drinking water to people across six countries so far.  What makes that heartbeat is the use of Biosand filters. Biosand filters are a simple type of water cleaning technology used in rural houses. Biosand filters are an adaptation of slow sand filters.  […]