Wednesday, September 26, 2012

The Environment & You: Morning Links

In our everyday lives we are exposed to environmental hazards that we are well aware of. We may walk through a cloud of smoke from someone's burning cigarette or we may cross through a construction site and take in a lung full of concrete mist but there are a lot more problems out there that may affect us all that we don't even know exist.

Orlando pollution sites targeted for high-voltage cleanup:

In 1990 a large volume of tricholorethylene (TCE) was discovere beneath the Spellman Engineering warehouse in Orlando, Florida. The spill was large enough that it would result in the city of Orlando as being home to a Superfund site. By opting to cleanup the spill on their own the city of Orlando avoided the stigma of being listed as having a Superfund site and began what was prjoected to be a $13 million dollar cleanup.

The technology for remediation of the solvents is known as electrical-resistance heating and soon a current will be sent approximately 50 feet underground and be passed from through clusters of steel contacts and as the current faces resistance from the sands, clay, and water it will in turn heat the subterranean environment causing the TCE to boil and transform to a vapor to be recovered by a network of underground suction pipes.