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Could
Nanotechnology solve the Water Crisis?
 India
- Nanotechnology could be the answer to ensuring a safe
supply of drinking water for regions of the world stricken
by periodic drought or where water contamination is rife.
Writing in the International Journal of Nuclear
Desalination, researchers in India explain how carbon
nanotubes could replace conventional materials in
water-purification systems.
Water shortages and lack of
access to safe drinking water will continue to grow as major
global problems. At present, more than one billion people
lack access to safe drinking water and 2.4 billion people
lack access to proper sanitation, nearly all of them in the
developing countries. At present a third of the world's
population live in water-stressed countries, and by 2025,
this is expected to rise to two-thirds.
S. Kar, R.C. Bindal, S.
Prabhakar, P.K. Tewari, K. Dasgupta, and D. Sathiyamoorthy
of the Bhabha Atomic Research Centre (BARC) in Mumbai,
India, explain how new water purification technologies are
constantly being investigated but to be viable in the
developing world these have to be relatively simple and
inexpensive to install, operate, and maintain.
They have turned to
nanostructured, the carbon nanotubes, hollow carbon fibers
less than a billionth the thickness of a human hair. The
unique chemical properties of carbon nanotubes mean that
only very small molecules, such as water molecules can pass
along their interiors, whereas viruses, bacteria, toxic
metal ions, and large noxious organic molecules cannot.
The team points out that the
smooth and water repellant interior of carbon nanotubes
means that a filter based on this technology would be very
efficient, allowing a high flow rate of water through the
filter without fouling. Importantly, the power needed to
drive water through such a system will be low compared to
conventional membrane technology.
However, to be useful as a
nanotech filtration system for contaminated water, these
nanoscale structures need to be engineered to form
well-defined arrangements to allow the efficient
decontamination of water. The team has now investigated the
potential of forming water filtration systems based on
carbon nanotubes that could remove arsenic, fluoride, heavy
metals and toxic organic chemicals. Carbon nanotubes have
impressive credentials for water purification, the
researchers say.
Source: Inderscience Publishers |
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This
newsletter is sponsored by:
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Innovation needed to solve
Sanitation Crisis
 VIENNA,
Austria -- At the International Water Association's World
Water Congress, ITT Corporation's chief executive officer,
Steve Loranger, called for greater investment in sanitation
and continued focus on innovative solutions to address the
health crisis affecting some of the world's poorest regions.
Loranger's comments were made during the second event in a
discussion series announcing ITT's new corporate
philanthropy initiative, ITT Watermark.
"The impact of poor sanitation on
the health of people in some of the world's developing
countries is well-documented and inescapable, but still
dramatically overlooked by governments and industry alike,"
said Steve Loranger during the panel discussion. "While
governments must recognize the incredible health and
economic benefits of investments in sanitation, industry
must continue to invest in the research and development of
viable solutions for the world's most vulnerable
populations."
According to the World Health
Organization, 2.2 million children under the age of five die
each year from diarrheal disease. It is estimated that
providing children with access to toilets reduces their
chances of contracting these deadly diseases by half.
"As a global water technology
company, we recognize our responsibility and are working
hard to develop water and wastewater treatment solutions
that meet the specifications and price-points of the
developing world, while investing in innovative and locally
sustainable philanthropic activities to provide safe water
and sanitation where they are needed most," Loranger added.
In addition to Loranger, the
panel featured Ned Breslin, director of international
programs at Water For People, and Dr. Darren Saywell,
development director at the International Water Association.
The panel was moderated by J. Carl Ganter, director of
Circle of Blue, a media project of the Pacific Institute, a
non-profit water policy think tank. A summary of this
discussion can be viewed at
www.ittwatermark.com.
Watch the Discussion - Online
The
complete panel discussion is available online in our Video
Center, here are the links to watch them now:
The Sanitation Crisis -
Chapter 1
http://www.waterandwastewater.com/videos/view_video.php?viewkey=2af431fb7b672a68b659
The Sanitation Crisis -
Chapter 2
http://www.waterandwastewater.com/videos/view_video.php?viewkey=8bb2e16d03b85bde76e2
The Sanitation Crisis -
Chapter 3
http://www.waterandwastewater.com/videos/view_video.php?viewkey=8a345332c751b2f2e476
Sources:
http://www.itt.com/ and
http://www.waterforpeople.org |
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New, Zero-Waste, Wastewater
Treatment System
 MILWAUKEE,
WI -- Procorp Enterprises LLC introduces the 'Targeted
Phosphorous Extraction Pellet Reactor System' for wastewater
treatment. This sustainable system quickly and safely
extracts high purity calcium phosphate, magnesium phosphate
or Struvite pellets directly into a recycle bin to minimize
sludge disposal and related costs, eliminate phosphorous
loading and run off issues, and reduce chemical usage and
cost. It also removes ammonia and phosphorous in one step,
while crystallizing the phosphorous into concentrated,
self-dewatering reusable pellets.
"The
Procorp Pellet Reactor System breaks the nasty
phosphorous-eutrophication cycle once and for all,
essentially eliminating non-point discharge," says Eric
Fessler, Procorp Chief Operating Officer. "The system
extracts phosphorous as pure, solid pellets that are
significantly more 'green', convenient and cost-effective to
manage compared with biosolids," he says.
Conventional phosphorous removal systems convert phosphorous
into biosolids, or sludge, with every gallon of chemical
used in the process generating about 9 gallons of sludge.
These processes have high costs associated with chemicals
and waste hauling. Of even greater concern, they generate
increased non-point discharge through land spreading, which
accounts for more than 90% of eutrophication.
The
Procorp Pellet Reactor System is a highly automated, modular
and skid mounted solution that offers plug-and-play
commissioning and operation. The system minimizes operator
attention and eliminates biological variability, and can be
installed in new or existing wastewater treatment
facilities.
The
heart of the Procorp system is the pellet reactor. Water is
pumped in an upward direction, maintaining the seed material
in a fluidized state. Crystal pellets form around the seed
material, and the pellets grow and move toward the reactor
bottom. Periodically the pellets are discharged from the
reactor and fresh seed material is added without any
downtime, parallel capital equipment or labor. Simple
atmospheric drying produces pure, safe-to-handle and
virtually water-free pellets that are reusable as ceramic
filler for cement, agricultural feed or fertilizer
feedstock.
For
more information contact:
Procorp Enterprises LLC
10200 Innovation Drive, Suite 500
Milwaukee, WI 53226
Telephone: 800.449.8777 or 414.258-8777
Fax: 414.258.8066
Email: eng@procorp.com
Web site:
http://www.procorp.com/
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ClearSCADA 2009 Edition
SCADA Host Software
 Ottawa,
Canada -- Control Microsystems, global developer of
advanced SCADA products for water and wastewater
treatment plants, today announced the release of
ClearSCADA 2009 Edition, the newest version of our
premium SCADA Host software.
Free Demo
A ClearSCADA 2009 demo may be
downloaded (403Mb) from the Control Microsystems
website, or a demo CD request made at
sales@controlmicrosystems.com
New features enhance the
product’s power, interoperability and ease of use. With
support for 64-bit operating systems, customers can use
the latest and most powerful server hardware for their
critical infrastructure, allowing larger database sizes.
External programs can connect
to the ClearSCADA server with .NET API and actions such
as configuration and system monitoring and control can
be efficiently performed. This feature provides detailed
error reporting and Intellisense; a tool that aids
developers in writing code for an application.
Also new to ClearSCADA 2009
is the integration of Kepware’s KEPServerEX OPC Server
which boosts connectivity with a wide range of third
party devices. The suite of Kepware OPC drivers adds
over 50 device protocols and allows ClearSCADA to
support hundreds of third party products.
“ClearSCADA 2009 is modern
SCADA management software designed to save the end user
time and money”, says Eric Schwantler, ClearSCADA
Product Manager. “The 2009 product is the culmination of
years in development and field use”.
Additional driver
enhancements include a Direct SMS Driver facilitating
messages to be sent straight to a mobile phone, and a
Driver Development Kit, providing a .NET 2.0 framework
for creating custom communication drivers in any .NET
2.0 compliant language.
Control Microsystems is a
global supplier of automation products for Supervisory
Control and Data Acquisition (SCADA) systems and is the
world’s largest, privately held SCADA products company.
Source:
http://www.controlmicrosystems.com/ |
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Featured Videos
Share
your videos with everyone - promote your plant, your
product and your company, free.
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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. Ngoc Duc wants help with
Daphnia growth:
I'm working at a WWTP
for catfish processing treatment using 1 oxidation ditch
with 2 surface aerators. We have just start up and get a
very well result for wastewater but suddenly the Daphnia (a
very small organism) appear in our oxidation ditch and
clarifier and they are eating all the activated sludge we
have.
COD in oxidation ditch is
about 1500 and BOD is 1000. We have tried CaOH to
remove them, but after 2 weeks the Daphnia appear again.
Please help me to remove this Daphnia problem.
(Click
here to post a reply)
Thanks everybody,
Khong Dang Ngoc Duc
ndf1984@yahoo.com
Help Forum:
Share your
expertise with others in our
Help
Forum. |
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| From the Job
Fair: Waste Water
Treatment Supervisor - New Mexico
We are looking with 8 or more
years of experience in the waste water sludge removal
industry. This position requires a current wastewater
treatment certification issued by the state of New Mexico
IAW New Mexico Administrative Code 20.7.4.13.
This position is for a
facility supporting 10,000 people.
Resumes can be sent to
busdev@nvttech.com
If you have any questions
please contact:
Robert at NVT Technologies
Telephone: 703-406-8000 ext. 102
The Job Fair:
A free
service of Water and Wastewater.com. You can post job
opening for managers, engineers, sales, reps or other
talented people you need. ...Or one can post their resume
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
© 1999-2008 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
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Newsletter is a 100% opt-in e-mail list of information for
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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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::
Could Nanotechnology solve the
Water Crisis?
::
Innovation needed to solve
Sanitation Crisis
::
New, Zero-Waste, Wastewater
Treatment System
::
ClearSCADA 2009 Edition SCADA
Host Software
:: The News Center : More headlines
:: The Water and Wastewater Blog
:: Video Center
:: Help Forum
::
Water and Wastewater Plant
Directory : Featured Plant
:: The Job Fair
:: Top Picks at Amazon.com
:: Ask Tom! Column!
:: 180,000+ visitors in August !
:: Call For Photographs!
:: Subscribe, Unsubscribe
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:: About Us
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| Hi Everyone,
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interviews lined up for WEFTEC and only 3 slots remain open.
This will be our last call for interviews, so if you company
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For more information and to
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click here.
Thanks,
Joe Taylor, Editor
jtaylor@waterandwastewater.com
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Featured
Case History |
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Kruger Case Study : City of Palm Coast, FL
The City of Palm Coast, located on the east coast of
Florida, expanded their existing Wastewater
Treatment Plant (WWTP) to increase capacity to 6.83
MGD due to population growth, as well as add the
production of reclaimed reuse water for use within
the City. The existing facility disposed effluent
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More case histories...
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| Call For
Photographs
This weeks photo
is of a VSEP that is being tested at a major winery as a
wastewater treatment alternative to a "land grabbing"
conventional digester systems. The pilot testing is
evaluating VSEP as a treatment option for barrel wash water,
equipment cleaning solutions and high TDS ground water.
Photo courtesy
Greg Johnson of New Logic Research
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