Chemical Engineering :: Environmental Engineering
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Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for
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Lagooning process is mainly a means of the
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Carbon monoxide is a pollutant, which causes
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Pollution by particulate matter emission in the atmosphere does not take place during metal
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Direct reaction of unsaturated hydrocarbons with either NO or NO2 produces an eye irritating pollutant compound known as
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Pick out the correct statement.
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BOD of raw municipal sewage may be in the range of about __________ mg/litre.
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Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in
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When the concentration of SO2 in air is greater than __________ ppm, it gives a pungent smell.
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Presence of a certain minimum quantity of flourine is desirable in potable water to prevent
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A.
Noise from ball mills can be dealt with by fibre glass lined enclosures.
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B.
Noise from vibrating chutes can be reduced by lining the metallic chute with rubber.
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C.
Noise of conveyor belt system is reduced by using urethane coated cloth conveyor belts and rubber/plastic covered metallic rollers.
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D.
all (a), (b) & (c).
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