Water is essential for life and makes up a large portion of living organisms. It serves several functions in the human body including transporting nutrients and regulating temperature. Several microorganisms can be found in drinking water supplies including Cryptosporidium, Anabaena, rotifers, E. coli, and Salmonella which can cause illness. There are various methods for purifying water such as boiling, exposure to sunlight, chlorination, and coagulation/flocculation which remove microbes and make water safe for drinking.

1. Microbes In Drinking Water
And
Water Purification

2.  A colourless, transparent, odourless, liquid
which forms the seas, lakes, rivers, and rain and is
the basis of the fluids of living organisms.
http://www.oxforddictionaries.com/definition/english/water

3. The 5 functions of water in our body
• Cell life
• Chemical and metabolic
reactions
• Transport of nutrients
• Body temperature regulation
• Elimination of waste

4. 1) Cryptosporidium
2) Anabaena sp
3) Rotifers
4) Copepods
5) E. Coli
6) Rhizopus stolonifer
7) Naegleria fowleri
8) Legionella Pneumophila
9) Chaetomium sp
10) Salmonella Enterica
10 Microorganisms You Can Find in Drinking Water

5. Cryptosporidium
Species:
• Cryptosporidium parvum, C.
andersoni, C. baileyi
Significance:
• Cryptosporidium is a genus of
parasites.
• Cryptosporidium parvum, may
cause gastrointestinal illness.
• there is no known cure for this
illness.

6. Anabaena sp
• a cyanobacteria that
lives in freshwater
reservoirs
• Anabaena bacteria have
been found producing
saxitoxins
• production of
neurotoxins

7. Rotifers
• microscopic animals with about
1000 cells.
• about 2000 different species
classified into three classes.
• Most rotifers are around 0.1–
0.5 mm longand are common
in freshwater
• act as hosts to protozoans (like
cryptosporidium) and bacteria.

8. Escherichia coli (E. Coli)
• Escherichia coli, a
bacteria that lives in, on,
and around fecal matter.
• E. coli comes from
human and animal
wastes.
• E. coli may be washed
into creeks, rivers,
streams, lakes, or ground
water.

9. Purification Of Water
• How to purify water ??
1. Boiling
2. Sunlight Exposure or
Bottling
3. Chlorination
4. Coagulation and
Flocculation

10. Boiling

11. Boiling

12. Sunlight Exposure

13. Sunlight Exposure

14. Chlorination

15. Chlorination

16. Coagulation and Flocculation

17. Coagulation and Flocculation

18. Water Is Life