Question
Download Solution PDFWhich out of the following does not help in disinfecting water?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Filtration.
Key Points
Filtration
- Filtration is a process used to separate solids from liquids or gases by using a filter medium that allows fluid to pass through but not solid.
- Filtration can be mechanical-biological or physical.
- It does not help in disinfecting water.
- If you want to disinfect the water you can boil it or you can use alum for chlorine tablets.
Boiling
- Boiling is used to kill pathogenic bacteria, viruses, and protozoa.
Chlorination
- Chlorine kills a large variety of microbial waterborne pathogens.
- Chlorination is the process of adding chlorine to the water to disinfect it and kill pathogens.
- Amount of chlorine required for water disinfection around 1-16 milligrams per litre of water.
Coagulation
- Alum acts as an electrolyte that helps in settling the suspended matter in water.
- The process of adding alum to disinfect water is called coagulation.
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