Water Supply
This type of water source includes piped water, public taps, and wells placed far from sewage.
Improved Water Sources
This is the FIRST step in making water safe.
hoosing the cleanest source
Filtering water through THIS can remove suspended solid particles.
Gravel and sand
Contaminated water often contains microbes from these two sources.
Human and animal waste
This type of water used in labs contains no dissolved salts.
Distilled water
Millions of people still drink water from these unsafe sources like rivers and ponds.
Untreated Water Resources
This process allows solid particles to sink to the bottom of a tank.
Sedimentation
Activated carbon can remove both toxic metals and these unpleasant sensory qualities.
Bad tastes and smells
Waterborne microbes can cause diseases that often result in this outcome.
Death and sever disease
Scientists have created filters made of this material, which lets only water molecules pass.
Graphene
This underground rock formation holds large amounts of water.
Aquifer
Chemicals are added to make fine particles stick together during this process.
flocculation
Very fine particles that float and cannot settle are removed using this chemical process.
Flocculation
This chemical kills microbes in the final stages of water treatment.
Chlorine
Tap water conducts electricity because it contains these.
Dissolved Salts
These wells are drilled deep into the ground and can provide cleaner water than surface sources.
Boreholes
Activated carbon removes bad tastes and smells, including this chemical that smells like rotten eggs.
hydrogen sulfide
After filtration, the water is stored in this type of container to avoid contamination.
Covered reservoir
Water stored without a cover may get contaminated by these.
Microbes, dust or animal waste products
This everyday product is mentioned as an “improved” source of drinking water.
Bottled Water
This type of water source can still be unsafe if not treated properly, despite being “improved.”
Any improved source (e.g., wells, taps, piped water)
This substance is added to kill microbes.
Chlorine
This dissolved compound in groundwater makes it smell like rotten eggs.
Hydrogen Sulfide
Even water from wells can still be unsafe because it might contain these harmful dissolved substances.
Toxic Metals
Sedimentation, filtration, flocculation, carbon treatment, and chlorination are all steps in providing THIS.
Clean, safe, water supply