Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Acidity Hardness Iron & zinc Alkalinity Acidity Hardness Iron & zinc Alkalinity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Mercury Aluminium Lead Arsenic Mercury Aluminium Lead Arsenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in Oxidation of carbonaceous matter to CO₂ Coagulation and flocculation of colloids All of these Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Oxidation of carbonaceous matter to CO₂ Coagulation and flocculation of colloids All of these Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ionisation potential employed in the industrial electrostatic precipitator is of the order of 30 to 70 kV AC 230 V DC 30 to 70 kV DC 230 V AC 30 to 70 kV AC 230 V DC 30 to 70 kV DC 230 V AC ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Chlorination Ion exchange process Oxidation followed by settling & filtration Lime soda process or manganese zeolite process Chlorination Ion exchange process Oxidation followed by settling & filtration Lime soda process or manganese zeolite process ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following industries discharge mercury as a pollutant? Beverage plant Tanneries Phosphoric acid plant Chloro-alkali industry Beverage plant Tanneries Phosphoric acid plant Chloro-alkali industry ANSWER DOWNLOAD EXAMIANS APP
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