Environmental Engineering in CE Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? Activated carbon adsorption Lagooning Biological oxidation pond Chemical coagulation Activated carbon adsorption Lagooning Biological oxidation pond Chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Increases Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of aldrin in public water supply system is about __________ μg/litre. 0.5 357 17 1097 0.5 357 17 1097 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Solid content in most of the domestic sewage is about __________ percent. 10 0.1 0.001 5 10 0.1 0.001 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Algae growth in water is controlled by Deoxidation Aeration Bleaching Chlorination Deoxidation Aeration Bleaching Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Iron & manganese Bi-carbonates Carbonates Arsenic Iron & manganese Bi-carbonates Carbonates Arsenic ANSWER DOWNLOAD EXAMIANS APP
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