Water Treatment, Wastewater Treatment, Bioremediation

Coliform
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Terms in this set (21)
Coliform
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Coliform is used for
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Steps used to process drinking water
Aeration
Coagulation
Softening
Filtration
Distillation
Disinfection
Contaminants targeted in each step - Drinking Water
Aeration - Dissolves Gases
Coagulation - Large particles and colloids are removed
Softening - Calcium ions removed
Filtration - Removal of organic impurities
Distillation - Inorganic impurities removed
Disinfection - Bacteria/viruses destroyed
Steps used to treat wastewater
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Contaminants targeted in each step
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Define wastewater.
Dairy and industrial waste
Domestic waste
Examples of wastewater
Dairy waste, slaughterhouse waste
Human and animal excreta
Waters used for washing, bathing, and cooking
Define trickling filter
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When is trickling filter used
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B.O.DBiochemical Oxygen DemandPrimary wastewater treatmentSedimentation and screening of large debrisSecondary wastewater treatmentBiological (activated sludge, trickling filter, oxidation ponds) and chemical (chlorination) treatment Objective is to reduce BOD, odors, and pathogensWhat are the final products of wastewater treatments?SludgeHow might these final products be used?Purpose sedimentation accomplish in the drinking water treatment processPurpose coagulation accomplish in the drinking water treatment processPurpose filtration accomplish in the drinking water treatment processPurpose disinfection accomplish in the drinking water treatment processWhat is bioremediation?Examples of Bioremediation