Question

Write any three methods for the treatment of sewage​

Answer 1

Answer:

1 st -by not throwing garbage anywhere

2nd- try to use biodegradable substance

3 rd - use dustbins

Answer 2

Question ⤵

Write any three methods for the treatment of sewage

Answer ⤵

• 3.5.1 Filtration.
• 3.5.2 Lagoons or ponds.
• 3.5.3 Biological nutrient removal. 3.5.3.1 Nitrogen removal. 3.5.3.2 Phosphorus removal.
• 3.5.4 Disinfection.