Every Last Drop
Storage system - Aquifers - rocks that store groundwater.
Lack of rain - rivers, streams, lakes drying up; Water sources are changing.
Wetlands getting polluted - soil that helps purify water is getting contaminated and therefore the water is contaminated.
Earliest water purifying factory using biosand - concept of wetland.
Waste water from the toilets flows to the underground sewer through pipes to the main sewer.
From the sewer it goes to a sewage treatment plant through pipes and canals
Add screens/ meshes, gravity and filters to remove the finer impurities.
Finally sent to a chamber with chemicals and UV rays.
Ryan - built a well to access groundwater; Ryan's Well Foundation - built over 740 wells making clean water accessible for many people. Well water - boiled/ filtered to make it fit for drinking. Filter made using gravel & sand.
Sewage system - ceramic filter with terracotta, clay, sawdust
Argentina - groundwater is salty. Ceramic filter can purify water.
Handpump Seesaw - Children play on the seesaw - pumps water.
Namibia - recycles sewage water to meet the domestic needs.
Dubai - Desalination 98% of water.
A lot of people drink bottled water instead of tap water - not necessarily cleaner.
We must learn to manage the water sources around us - just like our ancestors did.
Compost toilets - don't use water - manure. A lot of water is used to flush the toilets.
Anagha - designed a rainwater harvesting unit using natural materials to help farmers.
Thar Desert - Water drained out of the field - built dikes to prevent the water from flowing away - a new water storage system.
Prof Wangari Maathai - Green Belt Movement - replenishes groundwater.
Another way to access freshwater is to plant trees that condenses fog into water.
Mexico - People can volunteer to save water - children, adults.
Other storage & distribution systems - Wells (S), Aqueducts (D), Channels(D), Cisterns (S), Basins(S), Borewells, Tanks, Dams, Reservoirs, Artificial lakes,
Vietnam - Children moving water to a tank; Park with cleanest water - anybody polluting the area around the area will be fined and kicked out.