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)? Chemical coagulation Biological oxidation pond Activated carbon adsorption Lagooning Chemical coagulation Biological oxidation pond Activated carbon adsorption Lagooning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Carbonates Chlorides Bi-carbonates Sulphides Carbonates Chlorides Bi-carbonates Sulphides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hydrogen ion concentration in distilled water is 10⁷ 7 x 10⁷ 7 x 10⁻⁷ 10⁻⁷ 10⁷ 7 x 10⁷ 7 x 10⁻⁷ 10⁻⁷ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. Coal ash Ortho-xylene None of these Potassium cyanide Coal ash Ortho-xylene None of these Potassium cyanide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Biological oxidation Composting None of these Incineration Biological oxidation Composting None of these Incineration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Iron Bromine Zinc Iodine Iron Bromine Zinc Iodine ANSWER DOWNLOAD EXAMIANS APP
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