The main disadvantage of oxidation pond is that________________?

Byadmin January 17, 2019June 4, 2021

The main disadvantage of oxidation pond is that________________?

A. large area is required for construction(Correct)
B. maintenance and operation cost are high
C. BOD removal is very low
D. none of the above

CHEMICAL ENGINEERING | Environmental Engineering

Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is

Question: Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is
[A].

inversely proportional to viscosity of gas.
[B].
proportional to the viscosity & density of the gas.
[C].
proportional to the pressure of the gas.
[D].
both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is
Environmental Engineering

The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is________________?

The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is________________?

A. 9500
B. 9800
C. 10100
D. 10920

Read More The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is________________?
Environmental Engineering

The layout of distribution system in which water flows towards the outer periphery is_________________?

The layout of distribution system in which water flows towards the outer periphery is_________________?

A. ring system
B. dead end system
C. radial system(Correct)
D. grid iron system

Read More The layout of distribution system in which water flows towards the outer periphery is_________________?
CHEMICAL ENGINEERING | Environmental Engineering

In water treatment, alum[Al2(SO4)3] is used for the process of

Question: In water treatment, alum[Al2(SO4)3] is used for the process of
[A].

filtration
[B].
coagulation
[C].
sedimentation
[D].
disinfection

Answer: Option B

Explanation:

No answer description available for this question.

Read More In water treatment, alum[Al2(SO4)3] is used for the process of
Environmental Engineering

The time of concentration is defined as_______________?

The time of concentration is defined as_______________?

A. the time taken by rainfall water to run from most distant point of water shed to the inlet of sewer
B. the time required for flow of water in sewer to the point under consideration
C. sum of (A) and (B)
D. difference of (A) and (B)

Read More The time of concentration is defined as_______________?
Environmental Engineering

The gas from sludge digestion tank is mainly composed of __________________?

The gas from sludge digestion tank is mainly composed of __________________?

A. nitrogen
B. carbon dioxide
C. hydrogen sulphide
D. methane(Correct)

Read More The gas from sludge digestion tank is mainly composed of __________________?

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