wastewater treatment 1 water treatment: why? zhealthful to drink zclean enough to return to the...
Post on 21-Jan-2016
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Wastewater Treatment 1
Water Treatment: Why?
Healthful to drink
Clean enough to return to the environment...
...usually for others downstreamto use again!
Wastewater Treatment 2
DRINKING Water Treatment
Initial Settling
Alum to Coagulate, then settles
again
Pretreated to remove organics & microbes (Ozonate)
Filtered(sand)
Distribution System 3-7 Decades old
Wastewater Treatment 3
Why Treat Wastewater?
EutrophicationEutrophication
Downstream
Wastewater Treatment 5
Backyard Treatment Plant
Septic Tank
Three Types of WWTmt
Communator
Wastewater Treatment 20
Activated Sludge(aerobic)
1° Clarifyer
Wastewater Treatment 27
Anaerobicdigestion!
Wastewater Treatment 33
Its All Downhill
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