HWTS - Filtration

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Household water treatment and safe storage (HWTS) has emerged as a viable solution for small and large populations, especially in rural areas. HWTS interventions can lead to dramatic improvements in drinking water quality and reductions in diarrhoeal disease, making an immediate difference to the lives of those who rely on water from polluted rivers, lakes and, in some cases, unsafe wells or piped water supplies.

Straining (fabric or micro)	Ceramic pot filter	Ceramic candle filter	Kisii filter bucket	Arsenic filter

Iron filter	Charcoal filter / Activated carbon	Ceramic Silver Pot (CSP) filter	Siphon filter	Concrete Biosand Filter

Slow sand filter	Rapid sand / gravity filtration	Upflow roughing filter	Chulli pasteurization

HTWS filtration links

• To accelerate health gains to those without reliable access to safe drinking water, WHO established the International Network to Promote HWTS in 2003. The informal network format optimizes flexibility, participation and creativity to support coordinated action. The Network.
• Managing water in the home: accelerated health gains from improved water supply. WHO.