Lecture 9: Engineered vs. Non-Point Systems; September 21, 2010

Fit entire world into domain of Albemarle County?

Pipes: must size for worst case scenario. When you gather it all in one pipe, however, does afford opportunity to treat it

Water moving across ground: non-point pollution. Difficult to control.

Well designed sewage system can release clean water back into river.
Healthy non-point system, when area is provided, there’s no catastrophe associated with it. Resilient.

How can be build resilience into engineered systems and control into non-point systems?

“Pollution is a resource in the wrong place at the wrong time.” Buckminster Fuller

[EUTROPHICATION: excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.]

[DENUDE: strip (something) of its covering, possessions, or assets; make bare : almost overnight the Arctic was denuded of animals.]

Whole concept of the city was closing the loops in the systems
Water: Waste water goes into a plant, biogas solids are retrieved, turned into waste, then fuel, used for heat.
Everything produced is turned into something productive.

Warren Byrd
Upper pond of dell is settling pond for primary silt and sediment of stream
Lands at threshold, skims and spills into secondary pool, finer sediment settles.
Later spills again, further filtering.

Chesapeake Bay is largest estuary in US. Shared by 6 states. Shared by 16 million people.

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