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NAE : $1,000,000 Challenge Prize
for Arsenic Removal
 WASHINGTON
-- The National Academy of Engineering (NAE) announced today
the establishment of the Grainger Challenge Prize for
Sustainability. This prize will award $1 million for a
practical technology that can prevent the slow poisoning of
people throughout the world as a result of arsenic
contamination of drinking water.
Arsenic-contaminated drinking
water affects tens of millions of people, especially in
developing countries where existing treatment technologies
are too expensive for widespread use. The prize will be
awarded for the development of a small-scale, inexpensive
technique for reducing arsenic levels in drinking water.
A quarter of the population of
Bangladesh drinks water from tube wells -- a cheap, low-tech
way of accessing groundwater. Many of the country's
estimated 10 million tube wells were built with
international aid to provide an alternative to
bacteria-tainted surface water. Unfortunately, these wells
frequently tap into aquifers contaminated by arsenic from
natural sources.
Arsenic poisoning is a slow,
painful process that can ultimately result in death.
Debilitating sores often appear first, followed by nerve
damage, commonly in the hands and legs, which are especially
sensitive to arsenic. Affected people can have difficulty
working or even walking, and continued exposure can lead to
liver failure, kidney failure, cancer, or the loss of arms
or legs.
The goal of the Grainger
Challenge Prize is to encourage the development of a
household- or community-scale water treatment system to
remove arsenic from the contaminated groundwater. The system
must have a low life-cycle cost and must be robust,
reliable, easily maintainable, socially acceptable, and
affordable. As a sustainable technology, the system must
also be within the manufacturing capabilities of a
developing country and must not degrade other water quality
characteristics or introduce pathogens.
"Sustainable development is not
just about conservation and the wise use of the Earth's
resources, but also about improving the quality of life for
all people," said NAE President Wm. A. Wulf. "A
challenge prize does more than just reward an individual for
achieving a technical goal," Wulf explained. "It also
focuses the talents of a particular community on solving a
problem."
The Grainger Challenge Prize for
Sustainability is made possible through the generous support
of The Grainger Foundation. The prize is administered and
managed by the National Academy of Engineering, a private,
nonprofit institution that provides technology advice under
a congressional charter.
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This
newsletter is sponsored by:
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AWWA
: How-To Guide for Protecting Drinking Water
 WASHINGTON,
DC -- Across America, undeveloped lands that protect
regional and local drinking water supplies are threatened by
population growth and sprawling development. A critical tool
for protecting the quality of the nation’s drinking water is
land conservation, according to a new handbook released
today by the Trust for Public Land (TPL) and the American
Water Works Association (AWWA).
The
Source Protection Handbook: Using Land Conservation to
Protect Local Drinking Water Supplies provides local
governments, water suppliers and agencies, and community
drinking water advocates with the tools to identify source
water conservation opportunities, implement funded source
water conservation programs, and acquire and protect the
lands that will help keep our drinking water clean.
"With
all we know about the essential need for a clean and safe
drink of water, it is important that our communities protect
the sources of that water – from origin to the tap," said
Will Rogers, president of TPL. "The conservation of
watershed and recharge lands for our drinking water sources
puts American communities in the enviable position of
lowering treatment costs and protecting public health, often
in addition to conserving a beautiful open space for the
community to enjoy."
While
modern drinking water treatment can reduce most source water
contaminants to acceptable levels before water is delivered
to consumers, protecting drinking watersheds and recharge
lands is emerging as a critical drinking water protection
strategy, in part due to often-high costs of treatment.
"Protecting our precious source waters is critical to
maintaining a safe and secure drinking water supply,” said
Jack Hoffbuhr, executive director of AWWA. "Land
conservation can be an important component in a water
supplier's plan for resource management." This new
publication also provides best practices and case studies
from organizations such as TPL and communities across
America.
In
making the case for protecting drinking water sources, the
report summarizes research about drinking water and public
health, the costs of not protecting water sources, and the
management of watersheds. The research is thoroughly
detailed in a companion report released earlier this year,
titled Protecting the Source.
Both
The Source Protection Handbook and Protecting the Source can
be ordered on the Web at
www.tpl.org/publications
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Actiflo : Demonstrates
Phosphorus Removals of 99%
 Cary,
NC -- Lincoln Park, NJ (Two Bridges Sewerage Authority)
Actiflo Pilot Study – Actiflo demonstrates phosphorus
removals of 99% from secondary effluent at wastewater
treatment plant.
The
two week pilot study consisted of testing to determine
optimal operating parameters for the ACTIFLO® process at the
WWTP. Operating parameters that were optimized were
coagulant type and dose, polymer type and dose, and the pH
level within the ACTIFLO® process. After optimization was
complete the ACTIFLO® process was operated under optimal
conditions for extended runs. During extended runs the
ACTIFLO® process consistently reduced phosphorus levels from
2.7 mg/l influent tP to under 0.08 mg/l effluent tP.
The
ACTIFLO® Process is a high performance and compact
clarification system using micro-sand enhanced flocculation
and settling. The standard design includes a static mixer
and three coagulation/flocculation tanks. A coagulant is
added to the raw water prior to the static mixer. The
coagulated water then enters a tank called the coagulation
tank and then the injection tank where microsand and polymer
are added.
The
micro-sand provides a large surface area and acts as ballast
therefore accelerating the settling of the flocs. The
destabilized suspended solids will bind to the microsand
particles by polymer bridges. In the third tank, the
maturation tank, the particles agglomerate and grow into
high-density flocs known as microsand ballasted flocs, which
settle quickly to the bottom of the settling tank. The
efficiency of settling is further increased by the use of
the lamella tubes.
The
sludge/microsand mixture collected at the bottom of the tube
settler is pumped to hydrocyclones where the sludge is
separated from the microsand by the centrifugal force of the
vortex action. The recovered clean microsand is then
recycled to the injection tank whereas the separated sludge
is continuously discharged.
The
Two Bridges Sewerage Authority in Lincoln Park, NJ will soon
be required by the regulatory agencies to reduce Total
Phosphorous (tP) in the effluent from their WWTP. The Two
Bridges Sewerage Authority is considering implementing
ACTIFLO® Systems to assist them with this task. The ACTIFLO®
System is being evaluated due to its high removal
efficiencies, small footprint, and quick start up time. A
pilot study was performed October 25, 2004 through November
05, 2004 to evaluate the process as a viable option.
The
ACTIFLO unit was positioned on site at Two Bridges Sewerage
Authority WWTP to access the secondary clarifier’s effluent.
A pump was placed in the secondary clarifier’s effluent
collection trough to supply water to the ACTIFLO unit.
Source:
www.veoliawatersystems.com
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Strategic Marketing
: Targeted to Your Audience
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can you reach the world's water and wastewater top
executives, engineers, managers and service personnel?
By purchasing a banner ad package on the industry's most
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| Help Forum :
Hot Messages from the Help Forum
People post their requests
for help and offer their suggestions to others in our open
forum.
Mr. Manas
needs help with chili and shrimp wastewater:
Hi, we are a dimsum
manufacturer, one of our products is chili sauce and
shrimp dimsum. We are currently facing two
problems with our waste water, and we appreciate
anybody's thoughts on this. We are not really experts in
waste water.
We have 2 waste by-products
that has been causing us problems with our waste treatment
plant. Thus we are currently diverting both waste products.
As both of them, when mixed with our treatment plant kills
the bacteria.
The first by-product is water
that was used with the chilis during cutting. During the
cutting process some of the juices of the chili mix with the
water. Although, the quantity of this water is not much;
about a drum of water, however, whenever we combine this
water with our water treatment, it kills all the bacteria.
Currently, we are forced to divert the by-product and
dispose without processing. We have been informed that the
bacteria dies because our water was "hot" from the chili. Is
this true?
The second by-product is
water that was used to wash the shrimp. The water is mixed
lye (potassium hydroxide) and used to wash the shrimp.
Somehow, when we mix this concoction to the treatment plant,
the bacteria also dies.
Can anybody help us process
these waste. Our treatment plant is otherwise ok without
these two. Any help is most appreciated.
(Click
here to post a reply)
Thanks,
Francis Manas
M&H Food
fhmanas@yahoo.com
Mr. Scofield needs corn chip wastewater:
I have a tortilla/tortilla
chip manufacturing plant. I am looking for a cost effective
solution to reducing our average BOD from 2825 to 200, COD
from 6,725 to 450 and TSS from 759 to 200 mg/L to the city.
Our average pH is in the range of 5.5 - 6.3, but can be as
high as 12.0 depending on when and where you sample the
water. We cook white corn with lime to soften the kernal's
skin in order to grind it into masa.
We only discharge 10,000 gal
per day. The starch is totally soluble. We have an old DAF
System, but it has never been used. It has about 25,000 gal
of storage capacity in 5 tanks.
(Click
here to post a reply)
John Scofield
SG Mexican Foods, Inc.
scofield@ellago.net
Help Forum:
Share your
expertise with others in our
Help
Forum. |
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| Water
and Wastewater Plant Directory :
Featured Plant
 Whistler
WW Treatment Plant
Whistler, British Columbia
The Resort Municipality
of Whistler operates one of the most advanced
wastewater treatment facilities in British Columbia.
The process includes primary, secondary and tertiary
treatment using ferrous....(Click
here to read more...)
Profile your plant in
our new Plants Directory. Its quick, simple
and free of charge. You can even include a
photograph with your profile!
Click here to list your plant in the Plants
Directory |
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| From the Job
Fair : Water Production
Operator - CO
Parker Water and Sanitation
District is accepting applications for a full-time Water
Production Operator. Requires skills to operate a
groundwater-based water supply and distribution system. Must
be able to obtain a Class C CDL with Hazmat endorsement.
SCADA and telemetry experience, Word, Excel and data base
skills a plus.
Pay range is $14.33 to $26.70
dependent upon certification level. Minimum D Certification
is required. Closing date for applications is February 28,
2005.
Submit applications and
resumes to jellis@pwsd.org
or fax to 303.841.8992.
Web site:
http://www.pwsd.org/
The Job Fair:
A free
service of Water and Wastewater.com. You can post job
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for companies who are looking to add talented people to
their staff.
Do you have a position
you need to fill? Visit the Job
Fair. |
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| About Us :
Water and Wastewater Newsletter
© 1999-2005 Water and Wastewater.com
Home page: http://www.waterandwastewater.com
Joseph Taylor, Editor
Water and Wastewater Newsletter
3948 South Third Street, No. 121
Jacksonville Beach, FL 32250
Phone: 904-280-4656
Fax: 904-273-1399
Email: jtaylor@waterandwastewater.com
Water and Wastewater
Newsletter is a 100% opt-in e-mail list of information for
the water and wastewater treatment professional. Do
you have company news, a new product, new service or other
information you would like to share with our subscribers?
Please submit articles via e-mail, only to: news@waterandwastewater.com |
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::
NEA : $1,000,000 Challenge Prize
for
Arsenic Removal
::
AWWA
: How-To Guide for Protecting
Drinking Water
::
Actiflo : Demonstrates
Phosphorus
Removals of 99%
::
Strategic Marketing : Targeted to Your
Audience
:: The News Center : More headlines
:: Help Forum
::
Water and Wastewater Plant
Directory : Featured Plant
:: The Job Fair
:: Top Picks at Amazon.com
:: Ask Tom! Column!
:: 82,000+ visitors in January!
:: Call For Photographs!
:: Subscribe, Unsubscribe
:: Archive Information
:: About Us
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| Hi Everyone,
How would a million bucks feel
in your wallet? The NAE has thrown down the challenge
- for arsenic removal. Are you up to it? If so,
it maybe worth a great deal of money to you. Read on!
With over 7,600+ subscribers, our goal is to provide information
to improve your business by using the resources available on the
Internet.
Thanks,
Joe Taylor, Editor
jtaylor@waterandwastewater.com
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Send
a copy of this newsletter
to a friend or associate! |
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 This
is a great book with many sample tests that can be very
helpful for the EIT examinations." |
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FE/EIT Sample Examinations
by Michael R. Lindeburg
Paperback: 111 pages, January 1999
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| This
months Ask Tom! article |
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Everything You Wanted To Know About Water Softening
Guest article by Gary Schreiber
The Purolite Company
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 We
Need Your
Guest Articles!
Do you have an area of expertise in water and wastewater
treatment, have you solved a difficult problem? Share your
knowledge with others and promote yourself too, by contributing
an article to the Ask Tom! Column. For more
information, please contact Tom
Keenan.
Click here for past
Ask
Tom! Archived Articles
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Featured
Case History |
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*2,000+ visitors in January! |
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| Call For
Photographs
This weeks
photo is of
the
massive cleansing and repair of this vital 149 mile Iraqi
waterway also includes the $12 million refurbishment of 13
water treatment plants and the repair of the pumping
station that sends water from the canal's reservoir
through a network of pipelines leading to residential,
commercial and agricultural users.
Photo courtesy
of
USAID.
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a water or wastewater treatment "action shot" for
inclusion on our home page, free of charge. Send your
photograph and description to: news@waterandwastewater.com
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