Potable Water and how to clean water .pptx

potable water

1. Potable Water and Ways of Water Purification Potable water is  the water that is filtered and treated properly and is finally free from all the contaminants and harmful bacteria .

2. Potable Water Potable water, also known as drinking water,  comes from surface and ground sources and is treated to levels that that meet state and federal standards for consumption . Water from natural sources is treated for microorganisms, bacteria, toxic chemicals, viruses and fecal matter. Why is it Called Potable Water?   Potable comes from the Latin potare , meaning "to drink."  The Romans came up with the word and built some of the world's first aqueducts, above-ground channels that brought potable water from the mountains to the cities.

3. Sources Of Potable Water Surface water Collected rainwater Groundwater

4. Non-Potable Water Non-potable water is  not treated to drinking water standards and is not meant for human consumption . Non- potable water, such as raw (untreated) water from reservoirs, is used for irrigation and other purposes, in addition to recycled water (highly-treated wastewater). Examples of non-potable water used in the workplace include:  rainwater from tanks used in cooling towers and car washing . quarry water used for dust suppression and landscape irrigation. swimming pool backwash water used for toilet flushing. When you drink non-potable water, you swallow organisms harmful to your body and expose yourself to a number of water-borne diseases. Waterborne contaminants could be bacterial, viral, parasitic or chemical.

5. Non-Potable Water Reuse Water reuse generally refers to the process of using treated wastewater (reclaimed water) for beneficial purposes such as agricultural and landscape irrigation, industrial processes, non-potable urban applications (such as toilet flushing, street washing, and fire protection),  groundwater recharge , recreation, and direct or undirected water supply.

6. Water Purification Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Water purification also  meets the needs of medical, pharmacological, chemical, and industrial applications for clean and potable water . The purification procedure reduces the concentration of contaminants such as suspended particles, parasites, bacteria, algae, viruses, and fungi.

7. Ways of Water Purification Boiling Filtration Sedimentation or settling Reverse Osmosis Distillation

8. Boiling Boiling is the best way to kill disease-causing organisms, including viruses, bacteria, and parasites . The high temperature and time spent boiling are very important to effectively kill the organisms in the water. Boiling will also effectively treat water if it is still cloudy or murky.

9. Filtration The process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles . Either the clarified fluid or the solid particles removed from the fluid may be the desired product.

10. Sedimentation or Settling Sedimentation is the deposition of sediments. It takes place when particles in suspension settle out of the fluid in which they are entrained and come to rest against a barrier.

11. Reverse Osmosis Reverse osmosis is a water purification process that uses a partially permeable membrane to separate ions, unwanted molecules and larger particles from drinking water.

12. Distillation Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still.

13. Made By Sushant VIII-A