Q. Rate of filteration of a slow sand filter ranges from (Solved)
1. 10 to 100 litres / h / m2
2. 100 to 200 litres / h / m2
3. 200 to 400 litres / h / m2
4. 400 to 1000 litres / h / m2
- b. 100 to 200 litres / h / m2
1. 10 to 100 litres / h / m2
2. 100 to 200 litres / h / m2
3. 200 to 400 litres / h / m2
4. 400 to 1000 litres / h / m2