2007 - [Sustainable Concepts] Water Filtering and the Friends
2007, vol. 52
Welcome to the July 2007 newsletter from Design Forward.
Please take some time to enjoy this month's features.
Quote of the Month: "Between earth and earth's atmosphere,
the amount of water remains constant; there is never a drop
more, never a drop less. This is a story of circular infinity,
of a planet birthing itself."
- Linda Hogan
Lisa A. Swan
The Friends Community School, a Quaker-based institution
located in College Park, Maryland, is building their
new classroom facility entirely out of straw bales.
This fall, the Friends Community School, a 21-year-old
College Park-based institution, will move into an enterprising
new facility near Greenbelt, Maryland, less than ten
miles to the east: a 27,000-square-foot, $5.7 million
"green" structure built entirely out of straw bales.
The building, which will sit on a 17-acre plot of land
and house upwards of 200 students, will be one of only
two in Prince George's County to be certified under
the Leadership in Energy and Environmental Design (LEED)
Green Building System, the U.S. Green Building Council's
benchmark for the design and operation of eco-friendly
Fitted with such fixtures as radiant floor heating,
waterless urinals and a "living," rain-sustained and
vegetation-covered roof - not to mention the bales themselves,
which provide energy-retaining insulation - the building
will be composed almost entirely of sustainable materials.
Low and slightly curved, tucked against a patch of adjacent
wetlands, its walls are constructed from thick rectangles
of locally grown straw, stacked one atop the other and
secured together with mud. The structure's lime-plastered
exterior resembles a southwestern-style adobe in both
texture and color - a smooth, pale-brown hue. Wide windows
and open porticoes fill the classrooms and the large
gymnasium space with natural light.
Article © Rachel Adams. Photo © Friends Community
Now that summer is here, we should be drinking
more water than ever. But how do you know if your water
Most water filters are not designed to remove a high
enough percentage of certain types of pollutants. Simple
carbon filters and many other types of filters do not
purify water; they can only filter out large particles.
Carbon filters remove mostly chlorine, and some other
harmful chemicals. They do not have a significant affect
on total dissolved solids.
In general, total dissolved solids are a combination
of minerals, metals (including lead), calcium and magnesium.
In highly populated and/or industrial areas, these substances
found in water create mineral imbalances (such as high
levels of sodium) and heavy metals.
To remove metals from our water, it is necessary to
remove the minerals as well: they cannot be separated.
A Reverse Osmosis System can remove 99.75% of total
dissolved solids. Not all RO systems work the same,
check the documentation for information on the distilled
quality or the water.
If you cannot afford a water purification system, look
into purchasing purified water from a local grocery
store or health food store dispensing machine. These
vending machines often charge $0.25 per gallon and you
provide your own container - glass containers are preferable
to plastic. Whether you are purchasing bottled or from
a water dispensing machine, "purified water" is preferable
to "filtered water."
Article © Lisa A. Swan
Reference article at http://www.h3environmental.com/html/products/water_facts.html
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