GATE ES · 2022 · ES
Question 61: Water treatment methods
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Question 61
ESNAT2 marksNeeds review
Clean water is passed through a bed of uniform spherical sand and at a filtration velocity of 0.002 m/sec. The sand grains are 0.4 mm in diameter and have a specific gravity of 2.65. Bed depth is 0.67m and porosity (η) is 0.35. Given, water density = 998.2 kg/m
; water dynamic viscosity = 1.002×10
Pa.s. Friction factor (
) is given as:
where Re is Reynolds number. The headloss (in m, rounded off to three decimal places) calculated using the Carmen-Kozeny equation is __________.Log in to check the answer
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2022ES
GATE ES 2022 · Paper 1
Environmental Science and Engineering · Original paper archive
- Section
- Environmental Science and Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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