As per IS 11401 (part 2) : 1990, the recommended value of filtration rate for slow sand filters in the rural water supply is:
As per IS 11401 (Part 2): 1990, which deals with slow sand filters for rural water supply:
The recommended filtration rate is kept low to ensure:
Effective biological purification (schmutzdecke action)
High removal of pathogens and turbidity
The specified range is 0.1 to 0.2 m/h, which is characteristic of slow sand filtration.
Which type of excavation is used for laying large pipelines?
As per IS 2296-1982, water is classified into five categories. Which of the following does Category E represent?
What is the recommended noise limit for diesel generators for domestic purposes as per environment protection rules?
What should be the minimum gradient for 250 mm diameter sewer of building drainage when flowing half-full?
As per IS 11401 (part 2) : 1990, the recommended value of filtration rate for slow sand filters in the rural water supply is:
In a 10 m side square shaped sedimentation tank, the flow rate is 100cum/h, and if the depth of water is 2 m , the detention time (h) is:
Which of the following is false about gravity type filters used for water purification?
Which type of excavation is used for laying large pipelines?
