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NSF : Helping to Protect Ballast
Water Against Invasive Water Species
 ANN
ARBOR, MI -- To address the ongoing problems associated with
invasive species in ship ballast water, a new agreement has
been signed by the U.S. Environmental Protection Agency
(EPA) and the Institute of Environmental Science and
Engineering (IESE) at Nanyang Technological University in
Singapore. As part of the agreement, NSF International will
play a pivotal role in addressing this ongoing global water
quality issue.
The new agreement will allow IESE
to conduct verification testing for the EPA Environmental
Technology Verification (ETV) Program. The first effort
under this agreement will be with ballast water treatment
systems under the Water Quality Protection Center, operated
by NSF International. Other ETV technology areas are
expected to follow.
Ballast water is absolutely
essential to the safe and efficient operation of modern
shipping, providing ship balance and stability while
unloading cargo and during voyages. However, it also poses a
serious ecological, economic and health risk, because
coastal port areas are home to a wide variety of organisms
that live in the water and bottom sediments. When a ship
takes on ballast, it also takes on organisms such as
microscopic plants and animals, mussels, crabs, and even
fish living in that port. Scientists estimate that as many
as 3,000 alien species per day are transported in ships
around the world, and some of these species have been known
to cause disruptions in the natural ecosystem where
discharged, bringing about economic troubles, and carrying
diseases.
The EPA, through the ETV
Program's Water Quality Protection Center (WQPC), is
currently developing a testing protocol to verify the
performance of commercially-available ballast water
treatment systems designed to remove, kill or inactivate
biological organisms present in ballast water. NSF
International manages the WQPC and will oversee the work of
IESE. Ballast water testing will also be completed at the
Naval Research Laboratory facility in Key West, Florida and
at other locations to be developed.
The EPA/IESE agreement was signed
on May 20 at the Second International Conference on Ballast
Water Management, hosted by IESE. More than 150
participants, from more than 40 countries, attended the
conference including regulators, policy makers, the shipping
industry, technology developers and researchers.
According to Tom Stevens, NSF
Manager of the WQPC, who attended the Singapore conference:
“The conference presentations provided excellent insight on
the status of ballast water efforts around the world.
Significant progress has been made toward development of
international standards and technologies for ballast water
treatment. Conference participants expressed a broad
interest in the ETV protocol as a means of demonstrating the
capabilities of treatment technologies.”
About NSF International
NSF International, an
independent, not-for-profit organization, certifies products
and writes standards to help protect food, water, air and
consumers goods (www.nsf.org). Founded in 1944, NSF is
committed to protecting public health and safety worldwide.
NSF is a World Health Organization Collaborating Centre for
Food and Water Safety and Indoor Environment. Additional
services include safety audits for the food and water
industries, management systems registrations delivered
through NSF International Strategic Registrations, Ltd. and
education through the NSF Center for Public Health
Education.
Source:
http://www.nsf.org/
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This
newsletter is sponsored by:
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Denitrification : High-Speed
Processing Can Be Realized By Microorganisms
 Japan
-- Kurita Water Industries, Ltd. has developed a new
biological nitrogen removal process which uses denitrifying
microorganisms known as ANAMMOX (ANAerobic AMMonium
Oxidation) microorganisms.
Anammox® process can reduce capital investment and
operational costs dramatically compared to the conventional
nitrification-denitrification process. In conventional
processes, ammonia or organic nitrogen in wastewater is
totally oxidized to nitrate under aerobic condition, and
nitrate is then converted to dinitrogen gas under anoxic
condition. In denitrifying step, organic materials like
methanol are needed as an electron donor for the reaction.
Anammox process consists of two reactors, named nitritation
and Anammox. In the nitritation reactor, half of the ammonia
is oxidized to nitrite, and ammonia and nitrite are
converted to nitrogen gas in Anammox reactor.
In
this regard, energy for the aeration in the nitritaion could
be reduced about by half, and in Anammox reactor no
additional BOD is needed for denitrification because ammonia
acts as an electron donor. Since reactions are done by
autotrophic bacteria, about 70% of excess sludge could be
reduced compared to the conventional process.
Pathway of the conventional process and Anammox process.
Anammox microorganisms were first discovered in 1990 by a
research group of Technical University of Delft in the
Netherlands. Kurita Water Industries had formed a
partnership with PAQUES BV in the Netherlands, the first
contractor of Anammox process in the world. Kurita and Prof.
Furukawa, Department of Civil Engineering Kumamoto
University, discovered ANAMMOX microorganisms from
wastewater treatment plant in Japan.
Kurita
has developed “sludge granulation technology” to keep high
concentration of ANAMMOX microorganisms in the reactor. This
technology uses UASB (Upflow Anaerobic Sludge Blanket)
granule as an initial carrier for starting up of Anammox
reactor and reactor can maintain 40 to 50 g/L of SS
(Suspended Solid) concentrations and volumetric loading of 5
to 7 kgN/m3/d can be achieved. This loading rate is
approximately 5 to 10 times higher than that for
conventional denitrification process, and area requirement
could be greatly reduced.
In
nitritation process, key factor for stable operation is how
to avoid growth of nitrite oxidizing microorganisms. Kurita
has developed new reactor which can eliminate nitrite
oxidizing microorganisms. Combination of this technologies
and DNA analysis of ammonia and nitrite oxidizing
microorganisms, stable operation of nitritation process
could be achieved.
Pilot-scale experiments of Anammox process were done for the
treatment of reject water from anaerobic sludge digestion in
wastewater treatment plant located in Niigata prefecture.
Experiments had continued for two years and finished
successfully, and efficiency and stability of Anammox®
process were confirmed. KWI has started sales promotion
activities of Anammox® process for treatment of wastewater
with high (over 200mgN/L) concentration of ammonia or
organic nitrogen. Main target will be, reject water from
anaerobic sludge digestion, and wastewaters from chemical
industries, food industries, and power plant.
Results of pilot scale experiments were presented at 40th
Annual Technical Conference by JSWA (Japan Sewage Works
Association). Another presentation with regarding
granulation technology of Anammox microorganisms was
presented at 6th International Symposium on Strong
Nitrogenous and Agro-Wastewater, held by IWA (International
Water Association), and obtained the award for the best
paper of the symposium!
Source: Kurita Water Industries
Web site:
http://www.kurita.co.jp/
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WEF : 10th Annual Industrial
Wastes Technical And Regulatory Conference
 Alexandria,
VA -- The Water Environment Federation (WEF) and the Air &
Waste Management Association (A&WMA), in cooperation with
the Water Environment Research Foundation, the Pennsylvania
Water Environment Association and the U.S. Environmental
Protection Agency, announce the 10th annual Industrial
Wastes Technical and Regulatory conference, August 22-25 at
the Adam’s Mark Philadelphia hotel in Philadelphia,
Pennsylvania.
In any
business, relationships are vital to achieving success.
Whether for succession planning, research and development,
regulatory compliance or any other business need, successful
relationship building is one of today’s greatest business
challenges. To adequately equip themselves to address this
issue, environmental professionals from around the world
will gather for this four-day conference designed to
encompass environmental regulatory and technical issues
related to air, wastewater and residuals from production
and/or treatment for a variety of industries.
“This
conference will help industry representatives develop and
maintain the tools and contacts essential for managing
corporate environmental stewardship strategies in a global
business environment,” said Al DeCarvalho, WEF Managing
Director of External Relations and Public Education.
A
series of presentations and discussions will focus on key
regulatory, technical, research and management topics,
including: petroleum refining, chemical, automotive,
electronics, metal finishing, pharmaceuticals, food
processing and textiles.
“The
Industrial Wastes conference offers industrial and
manufacturing executives and technical professionals an
opportunity to leverage the water quality community’s depth
and breadth of knowledge and experiences,” continued
DeCarvalho.
Those
encouraged to attend include: industrial wastewater
treatment personnel (managers, engineers, scientists, plant
personnel), industry environmental consultants, military and
refinery treatment personnel, equipment manufacturers,
municipal treatment plant personnel and pretreatment
coordinators, national, regional, state and local
regulators, environmental, health and safety personnel,
professors and students from engineering and environmental
science programs at universities and colleges, and
laboratory personnel doing sampling and analysis for
industries.
For
more information and to register, visit
www.wef.org
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Measurement : Open
Channel Flowmeters Suit Narrow Weirs and
Flumes
 SOUTHAMPTON,
PA -- Princo Instruments, Inc., a
well-respected, long-time manufacturer and
supplier of control instrumentation,
introduces its Model L4660/OC SmartSonic Open
Channel Flowmeters with novel Narrow Beam
Angle Technology for high accuracy and
reliability. The flowmeters include built-in
flow equations for 20 configurations,
including the common Parshall, Palmer-Bowlus,
and Khafagi Venturi flumes, and rectangular,
trapezoidal, bottom-step, circular, and
Thomson weirs, as well as many others. The
self-contained units include the sensor,
signal conditioner, microprocessor, and
totalizer in one unit housed in a NEMA 4X
enclosure.
With their novel
Narrow Beam Technology the new transmitters
are accurate in even narrow weirs and flumes,
problem-some applications for many ultrasonic
flowmeters. Princo's SmartSonic Narrow Beam
Technology also ignores baffles, uneven
sidewalls , and other obstructions that
interfere with other ultrasonic devices. Since
the narrow beam signals have outstanding
focus, they penetrate gasses, vapors, heavy
fuming, and foams that may fool other units.
Initial units have been successfully installed
and proven in water treatment applications
that measure 8 million gallons per day.
Princo SmartSonic
transmitters are the only ultrasonic open
channel flowmeters available with a 10-year
warranty. Basic units are priced at about
$800, one-third to one-half less than the cost
of similar units with far fewer features.
SmartSonic
transmitters provide a unique combination of
advantages in addition to their narrow beam
angle, including full temperature
compensation, simple pushbutton programming,
and high accuracy and reliability independent
of the materials being measured or the design
of the vessel, weir, or flume. Options include
HART® Communication Protocol, Intrinsically
Safe Electronics, and 3A approved Tri-Clamp
configuration.
For more
information and technical specifications,
contact:
Ms. Janet Turner
Princo Instruments, Inc.
1020 Industrial Boulevard
Southampton, PA 18966
Telephone 800-221-9237 or (215) 355-1500
Fax (215) 355-7766
Website:
www.princolevelcontrols.com
E-mail:
info@princoinstruments.com
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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. Jetland wants info quality
drinking water:
We are in a different situation where we
are supplying "purple piping" (reuse as flush water)
systems for several offshore clients. In our analysis of
the quality of the reuse water it came up that we could
easily use a membrane technology to produce a water of
close to ultra pure. With the costs coming down on the
membrane system this is feasible within the newer
wastewater - water process.
If this premise is considered to be true
then what would be the proper or ideal characteristics of the
final effluent as drinking water. We realize that
additions, i.e minerals, would be required to the final
effluent.
An issue that will come up and will need
consideration if not now in the near future.
(Click
here to post a reply)
Thank you,
Michael F. Jetland
J. P. Savage Company
jetland@earthlink.net
Mr. Hussein
wants to know more about RO:
Gentlemen: I have received this
message from one of RO buyer. Please reply with
non-engineers answer, thank you.
I'm a taxpayer listening to lawyers who
believe reverse osmosis is just the thing to clean up water
from the Sacramento River, Napa River & whatever else runs
off into the Bay ... so we can drink it.
They plan on reverse osmosis to clean up
the bay water. VOCs & all that trash.
Is that technically & medically OK? Is it
economically sound? Can you point me to a comprehensive
discussion aimed at educated non-engineers?
(Click
here to post a reply)
Thanks for any help.
Mustafa A. Hussein
Waan Enviro Tech
mustafa@waanenviro.com
Help Forum:
Share your
expertise with others in our
Help
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| From the Job
Fair :
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the Job Fair This Week
The Job Fair:
A free
service of Water and Wastewater.com. You can post job
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Do you have a position
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Fair. |
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| About Us :
Water and Wastewater Newsletter
© 1999-2004 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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Please submit articles via e-mail, only to: news@waterandwastewater.com |
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::
NSF : Helping to Protect Ballast
Water
Against Invasive Water Species
::
Denitrification : High-Speed
Processing
Can Be Realized By Microorganisms
::
WEF : 10th Annual Industrial
Wastes
Technical And Regulatory Conference
::
Measurement : Open
Channel
Flowmeters Suit Narrow Weirs and
Flumes
:: The News Center : More headlines
:: Help Forum
::
E-Classified Ad of the Week
:: The Job Fair
:: Top Picks at Amazon.com
:: Ask Tom! Column!
:: 64,000+ visitors in March !
:: Call For Photographs!
:: Subscribe, Unsubscribe
:: Archive Information
:: About Us
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| Hi Everyone,
With over 8,100+ subscribers and
64,000+ visitors each month to our web site, 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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Methods for UASB
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Guest article by Nguyen
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