evidence of source water fecal
contamination; and
·
Compliance monitoring for systems that are sufficiently
treating drinking water to ensure effective removal of
pathogens.
A
groundwater system is subject to triggered source-water
monitoring if its treatment methods don't already remove
99.99% of viruses. Systems must begin to comply with the
new requirements by Dec. 1, 2009.
Source: EPA October 23, 2006
Whaddya Know About H20?
Did you
know that a leak of one drop per second could waste up
to 2400 gallons of water a year?
How much of the Earth is covered with water?
About
70% of the earth’s surface is covered with water.
Ninety-seven percent of the water on the earth is salt
water. Salt water is filled with salt and other
minerals, and humans cannot drink this water. Although
the salt can be removed, it is a difficult and expensive
process.
Two
percent of the water on earth is glacier ice at the
North and South Poles. This ice is fresh water and could
be melted; however, it is too far away from where people
live to be usable.
Less
than 1% of all the water on earth is fresh water that we
can actually use. We use this small amount of water for
drinking, transportation, heating and cooling, industry,
and many other purposes.
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October 24, 2006
The town of Millsboro, Del., has selected an
advanced solution from Parkson Corp. as a
key part of its wastewater treatment plant
upgrade. Parkson’s DynaLift™ membrane
bioreactor (MBR) system will be used to help
expand the town of Millsboro’s wastewater
treatment capacity from 0.6 mgd to 1.15 mgd.
Parkson’s MBR technology is a flexible,
out-of-basin membrane system that uses ultra
filtration tubular membranes with a simple
biological wastewater treatment plant to
provide extremely high-quality effluent for
beneficial reuse.
After evaluating numerous technologies, CABE
Associates, Inc. recommended that the town
of Millsboro choose Parkson’s DynaLift
system for its ability to meet the most
stringent current and future permit
requirements, and also because it fit onto
the existing plant site
According to Chuck Morgan, DynaLift MBR
product manager, both submerged and external
membrane bioreactor configurations were
carefully evaluated for the project.
Lee Beetschen, president of CABE Associates,
Inc., said the town of Millsboro selected
the DynaLift system based on several
factors. These included the easy
accessibility and maintenance of the
external membrane systems, the low operating
cost as a result of the innovative airlift
design, the use of rugged tubular membranes,
and the simple, safe and automatic membrane
cleaning.
In addition to grit removal, flow
equalization and sludge dewatering, the
upgrade will include: a new headworks
building with two new Parkson Rotomesh,
internally fed, fine-mesh drum screens;
screenings dewatering using a Parkson
shaftless screw conveyor and Parkson
dewatering press; new anoxic/oxic biological
tanks utilizing high-efficiency, ultrafine
bubble Parkson HiOX Aeration Panels; a new
membrane building with Parkson external
DynaLift membrane skids; and a plant-wide
Parkson integrated control and SCADA system.
Source: Parkson Corp. October 24, 2006
Most people pay for water delivered
to their home according to the
amount they use. In the United
States the water rate is charged for
each 1,000 gallons used (in other
countries the charge is for each
cubic meter used). Prices vary
greatly, but a typical cost is about
$2 (U.S.) for 1,000 gallons. A
gallon of tap water costs less than
one penny. For the cost of one
bottle of designer water you could
refill it 2,000 times with tap
water.
One thousand gallons of water would
serve one consumer for about 20
days, so tap water is not very
expensive. Of the amount charged for
1,000 gallons, about $0.30 to $0.50
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is for treatment; the rest is for
paying the mortgage on the treatment
plant and the pipes in the street,
the salaries of the employees who
work for the drinking water utility,
and some profit for privately owned
water companies.
You can figure the cost of water in
your area by looking at your water
bill and dividing the total cost for
water by the total amount of water
used (just use the water part of the
bill if other costs are included).
In general, in the United States we
spend about 0.5 percent of our
income on both drinking water and
wastewater disposal.
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Excerpted
from Plain Talk Drinking Water by
Dr. James M. Symons |
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