Medical Microbiology. Introduction Microorganisms(Microbes) Microbiology Medical Microbiology.
Environmental Engineering Linking Microbiology to Engineering
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Transcript of Environmental Engineering Linking Microbiology to Engineering
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20-Jan-2010 electrical, computer and energy engineering
Environmental EngineeringLinking Microbiology to Engineering
Dr. AbbazadeganGraduate Students: Lauren McBurnett and Otto Schwake
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You are on the beach
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Tempe Town Lake
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What water would you drink?
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Environmental Engineersn Pretend you are environmental engineering expertsn Your job is to design a treatment process that will allow you to
drink the water at Tempe Town Lake
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What needs removed from the water?
n Large contaminants
n Medium contaminants
n Small contaminants
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Large Contaminant Removaln How can you remove the large contaminants?
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Prescreening Treatment
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Medium Contaminant Removaln How can you remove the dirt from the water?
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Gravity Settling Treatment
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Small Contaminant Removaln What about the dirt and oils that did not settle in the gravity
settling basin?
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What is turbidity?
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Why is turbid water a problem?n Measured in terms of Nephelometric Turbidity Units (NTU)
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Small Contaminant Removaln How can you remove turbidity?
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Coagulation and Flocculation Treatment
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Small Contaminant Removaln How can you remove the flocs that formed during coagulation
and flocculation?
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Secondary Settling Treatment
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Small Contaminant Removaln How can you remove the particles that did not join flocs or those
that did join flocs but were not heavy enough to sink?n What about removing odor?
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Filtration Treatment
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Filtration Mechanisms
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Filtration Soils
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Activated Carbon
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Small Contaminant Removaln How can you remove the microbes from the water?
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Chlorination Disinfection Treatment
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Drinking Water Treatment
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Environmental Engineersn Your next job is to design a treatment system to filter Tempe
Town Lake and other unknown dirty water samples
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Filtration Design Questionsn What is filtration?n What types of filtration are there?n What is filtered out during filtration?n What factors are used to define what is filterable?
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Filtration Engineering and Design
Before Coming to ASUn Design a filtern In groups of 3 or 4
n Incomplete Materials List– Coarse Aggregate– Fine Soil– Container
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Filtration Engineering and Design
While at ASUn Test your filter’s ability
remove – Odor– Turbidity– Microbes– Chemicals– Color
Scoringn Categories
– Highest Microbial Removal– Most Effective Odor Removal– Most Effective Color Removal– Lowest Cost
– Overall Winner– Highest score in
microbiological, odor and color categories versus the cost of the filter