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Waste Water – Advanced Treatment Exam Questions and Answers

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2023/2024 Written for academic year
Institution Advanced Water Treatment
Course Advanced water treatment
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Advance Wastewater Treatment - Answer-also called tertiary wastewater treatment defined as additional treatment needed to remove suspended and dissolved substances remaining after conventional secondary treatment Priority Pollutants - Answer-toxic to humans and aquatic environment Volatile organic compounds - Answer-toxic to human; carcinogenic; form of smog Ammonia - Answer-increase chlorine demand can be converted to nitrates and can deplete oxygen with phosphorus, can lead to development of undesirable aquatic growths Nitrate - Answer-stimulates algal and aquatic growth can cause methemoglobinemia Phosphorus - Answer-stimulates algal and aquatic growth interferes w/ coagulation interferes w/ lime-soda softening Calcium and Magnesium - Answer-increase hardness and TDS Chlorine - Answer-imparts salty taste intergeres w/ agricultural and industrial processes surfactants - Answer-cause foaming and may interfere w/ coagulation Granular Filtration - Answer-used after gravity separation removes additional suspended solids and oils before other treatment polishing step that lowers the levels of suspended solids and associated contaminants in treated wastes cake filtration - Answer-when particle removal takes place on surface of the media

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