Presence of H2S in raw water (to be chlorinated) results in the (A) Reduced softening capacity of zeolite (B) Increased dosage of chlorine to provide a disinfecting residual in the water (C) Easy removal of its hardness (D) None of these

Presence of H2S in raw water (to be chlorinated) results in the
(A) Reduced softening capacity of zeolite
(B) Increased dosage of chlorine to provide a disinfecting residual in the
water
(C) Easy removal of its hardness
(D) None of these
by

1 Answer

Answer :

(B) Increased dosage of chlorine to provide a disinfecting residual in the
water
by

Related questions

The purpose of adding Na2CO3 to water of low alkalinity is to (A) Permit the use of alum as a coagulant (B) Increase the softening capacity of zeolite (C) Facilitate easy regeneration of zeolite (D) All (A), (B) and (C)

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Last Answer : (A) Permit the use of alum as a coagulant

Pick out the false statement pertaining to water treatment(A) Aeration of water is effective in CO2removal(B) The zeolite water softening process reduces the hardness of water by notmore than 50%(C) Sodium sulphate or sodium carbonate do not cause hardness in water(D) Water with pH value less than 7, is acidic.

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Last Answer : (B) The zeolite water softening process reduces the hardness of water by not more than 50%

By adding 1 ml of Orthotolidine solution to 100 ml chlorinated water taken after contact period, the residual chlorine makes the colour of solution (A) Yellowish (B) Greenish (C) Bluish (D) Reddish

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Permanent hardness of water can be removed by (A) Adding alum (B) Adding lime (C) Adding chlorine (D) Zeolite process

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Softening of hard water is done using sodium aluminium silicate (zeolite) . This causes

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Last Answer : (B) Sodium chloride

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Which adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant? (A) Silica gel (B) Diatomaceous earth (C) Basalt (D) Bog iron (i.e., moist ferric hydroxide)

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H2S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H2S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is (A) 2.0 (B) 1.56 (C) 1.0

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