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International Water Awards Announced
 Denver,
CO -- The 2008 Stockholm Water Prize Laureate is John
Anthony Allan, for his pioneering work in how understanding
and communication of water issues are linked to agriculture,
climate change, economics, and politics.
A professor at King’s College
London and the School of Oriental and African Studies, Allan
introduced the “virtual water” concept in 1993 to measure
how much water is used to grow, package, and produce various
commodities. For example, it takes 140 L of water to end up
with a single cup of coffee.
The relationship between the
export and import of water-intensive products has “opened
the door to more productive water use,” according to the
Stockholm International Water Institute, which confers the
prize. Thus, Allan proposes, importing food can reduce the
pressure on scarce water supplies.
The $150,000 prize will be
presented in August in Stockholm during World Water Week
events.
Also announced last week was the
awarding of a new prize. Andrew Benedek, a member of AWWA
and George Warren Fuller awardee, is the first recipient of
the Lee Kuan Yew Water Prize, which recognizes contributions
to world water problems through the application of
innovative technologies or programs.
Andrew Benedek, Winner of the Lee
Kuan Yew Water Prize
A leader in membrane research and
technology, Benedek founded ZENON Environmental to develop
cost-effective membrane solutions for water treatment, which
are being applied to wastewater, reclaimed water, industrial
uses, home appliances, and desalination, as well as drinking
water.
Benedek serves on several corporate and advisory boards and
is a research associate at the Scripps Institute of
Oceanography in San Diego.
An engineer with a PhD in
chemical engineering from the University of Washington,
Benedek has received honorary doctorates from the University
of Ottawa, McGill University, and McMaster University, where
he began his career. The Government of Canada recognized his
contributions to his country with the Queen’s Golden Jubilee
Medal in 2002.
The award, which carries a
$300,000 (Singapore dollars) cash prize, will be presented
during the Singapore International Water Week in June.
Source:
http://www.awwa.org/
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This
newsletter is sponsored by:
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Sanford to turn Sludge into
Renewable Energy
 SANFORD,
FL -- Sanford, Florida will be the first municipality in
North America to adopt the MaxWest gasification system as an
efficient, cost-effective and environmentally friendly way
to dispose of biosolids. MaxWest Environmental Systems of
Houston Texas has developed the gasification system, which
converts sludge from the municipal wastewater treatment
system into renewable, green energy.
“Compared to the projected cost
of natural gas, a fossil fuel, Sanford will save $9,000,000
over the 20-year life of our contract,” said Paul Moore,
Sanford Utility Director. “This technology has provided us
with the opportunity to save money while managing our waste
stream and protecting the environment.”
Here’s how it works: the end
product of a sewer plant, wastewater sludge, also called
“biosolids”, will be gasified in the enclosed primary
gasifier to produce syngas. In a continuous integrated
process, the syngas will be oxidized in an enclosed thermal
oxidizer to produce renewable thermal energy. For Sanford,
the thermal energy will replace natural gas to power a new
dryer.
In larger MaxWest systems,
sufficient thermal energy may be produced to generate
renewable, or “green” electric power.
According to Sanford Mayor Linda
Kuhn, “We are thrilled to incorporate the MaxWest
gasification solution at our South Wastewater Reclamation
Center. Not only is the MaxWest system cost-effective and
efficient, it enables Sanford to be a leader in green
disposal technologies. Our hope is that the rest of the
country will look to us and follow.”
“Traditional disposal methods for
biosolids are becoming more expensive, publicly unacceptable
and potentially harmful to the environment,” said Richard
Heien, president of MaxWest. “Leading municipal utilities
are searching for low-cost environmentally friendly
solutions for biosolids disposal. Our system eliminates
costly transportation and potential air and water pollution
related to the current disposal practices.
For states with a Renewable
Energy Credit program in place, the MaxWest system will be
entitled to credits for using an alternative to fossil
fuels.
The MaxWest system works well
with animal, wood, and crop wastes and other carbon-based
waste like plastic, making renewable “green” energy from
disposal problems. MaxWest systems are presently operating
at facilities converting wood, chicken and mixed wastes.
Source:
http://www.maxwestenergy.com/ |
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New AWWA Publication : "The
Business of Water"
 Denver,
CO -- The American Water Works Association announces the
publication of The Business of Water: A Concise Overview of
Challenges and Opportunities in the Water Market – a
comprehensive introduction to the challenges and
opportunities facing the commercial water industry. The
book, edited by water business and strategy consultant Steve
Maxwell, is a collection of market, commerce and
business-related articles published over the last four years
in the Journal AWWA.
In his
foreword, former AWWA Executive Director Jack Hoffbuhr says,
“There really hasn’t been a thoughtful look at the actual
business of water. The commercial side of water is going to
play an increasingly important role in how we ultimately
manage water. This book provides the first comprehensive
look at the current status of the water industry, what some
future scenarios might be, and what we need to do to be more
effective stewards of our critical water resources.”
With
more than 35 full-length articles by a number of leading
water industry experts, The Business of Water addresses
investment trends in the water industry, conservation
practices, the impacts of climate change, regulatory trends,
strategic planning in the water industry, financing topics,
water pricing and value issues, and many other relevant
issues.
This
compilation will be an invaluable reference source on the
commercial and market aspects of the water industry – for
industry managers, companies, investors, or for those simply
wanting to better understand the nature and scope of the
world water market.
The Business of Water is available on Amazon.com
About
Steve Maxwell
Steve
Maxwell is the Managing Director of TechKNOWLEDGEy Strategic
Group, a management consultancy and investment banking firm
in Boulder, Colorado which serves the water and broader
environmental service industries. He writes and speaks
frequently on the water industry topics, and has advised
dozens of water companies on strategy and transactional
issues. He is also the regular “Market Outlook” columnist
for the Journal AWWA.
Source: http://www.awwa.org/
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Is Gas Detection in Sewers
Important?
 Homestead,
PA -- During low-flow, dry-weather periods, sanitary
wastewater solids deposited in combined sewers become a
major pollutant of our water system. They have
significant adverse impacts on the integrity of the
sewage system and receiving-water quality. Even sewers
that are supposedly designed to be 'self-cleansing' will
have transient sediment deposits, and part of the load
in transport will move near the sewer invert.
These solids contain high
concentrations of sulfates, and the conditions of a
sewer are ideal for transforming them to hydrogen
sulfide. The hydrogen sulfide is then oxidized to
sulfuric acid, a highly toxic and corrosive gas, by
biochemical transformation.
Gas monitoring and gas
detection inspections are conducted prior to and during
any task involving a sewer because of the potential for
the presence of sewer gases, especially in large
diameter pipes where flow rates tend to be less and the
area above the flow level is greater than smaller
diameter pipes.
The potential for gas
problems is also greater in lift stations and chambers
than in small-diameter sewer pipes. This is because
sewers under most design situations have natural
ventilation that is pulled along by friction from the
flowing water in the pipe (and we don't tend to get that
kind of ventilation in lift stations, chambers and in
large diameter pipes.) Although there are many kinds of
sewer gases that are created, I will focus on Hydrogen
Sulfide (H2S) in this article.
The production of H2S can
prove devastating to our sewer systems. H2S in sewer
pipes is produced by a combination of bacteria. Some of
the bacteria then convert the H2S gas into sulfuric
acid. The acid corrodes interceptors and can cause the
collapse of other concrete waste treatment structures.
Collection systems vary widely in their vulnerability to
hydrogen sulfide corrosion. For example, vitrified clay
and plastic pipes are very resistant to hydrogen sulfide
corrosion. On the other hand, increases in sulfuric acid
rapidly accelerate the deterioration of concrete, steel
and iron pipes.
H2S levels should be
monitored over time to ensure that the concentration
remains below the threshold required to produce sulfuric
acid (less than 2.0 ppm). The collection system utility
should have a program under which it monitors areas of
the collection system that may be vulnerable to the
adverse effects of hydrogen sulfide. It may be possible
to perform visual inspections of these areas.
The records should note such
items as the condition of metal components, the presence
of exposed rebar (metal reinforcement in concrete),
copper sulfate coating on copper pipes and electrical
components, and loss of concrete from the pipe crown or
walls. "Coupons" may be installed in structures or
pipelines believed to be potentially subject to
corrosion. Coupons are small pieces of steel inserted
into the area and measured periodically to determine
whether corrosion is occurring.
The collection system utility
should also be aware that a system in which wastewater
inflow has been reduced may face an increased risk of
corrosion, since the reduction of flow through the pipes
allows un-submerged conditions to occur and acid to be
deposited. A terrain that encourages the wastewater to
move at a higher velocity will be freer of hydrogen
sulfide than one where the wastewater may experience
longer detention times in the pipes. Therefore, some
systems may need a more comprehensive corrosion control
program, while some might limit observations to
vulnerable points.
Source:
http://www.redzone.com/
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Featured Videos
Share
your videos with everyone - promote your plant, your
product and your company, free. Industry-related
videos have been watched
over 250,000+ times in our Video Center.
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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.
Romero needs help with
DAF saturation tank:
What are the criteria that
must be applied to the design of a saturation tank (vessel)
in a Dissolved Air Floatation (DAF) system ?
Does a physical and/or a
mathematical model, that can predict the behavior of the
saturation tank, exists?
(Click
here to post a reply)
Thanks,
Romero
Universidad Politecnica de Valencia
jsoca@etsii.upv.es
Ms. Jamil wants to know what
"down comers" are:
I am a chemical engineer in a
water treatment company. I am sizinq the equalization tank
but there is a problem when I calculate the amount of air
required, I got confused because I found no of diffusers
then, there is something called "down comers".
Depending on them I can find
actual number of diffusers. But what are the "down comers"?
Is there any one knows about this? Appreciated your help.
(Click
here to post a reply)
Thanks,
Dania Jamil
Veolia Water
dania.jamil@veoliawater.com
Help Forum:
Share your
expertise with others in our
Help
Forum. |
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| From the Job
Fair: Field Maintenance
Mechanic - Bowling Green, MO
Alliance Water Resources,
Inc., a highly respected provider of water and wastewater
services, has a Field Maintenance Mechanic position open in
our Bowling Green, Missouri division.
General knowledge of public
works maintenance, lift stations, wastewater collection
systems and water distribution. The work is performed under
general supervision.
High School/GED and the
ability to work outside in all weather conditions are a
must.; Class "A" CDL required; license is preferred but not
required.
If interested, please go to:
www.alliancewater.com
to download an application and send it to:
Bo Stinnett
#6 Jefferson Dr.
Bowling Green, MO 63334
Tel (573) 324-2660
Fax (573) 324-6298
Alliance offers a competitive
salary and benefit package. EOE.
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
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Email: jtaylor@waterandwastewater.com
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you have company news, a new product, new service or other
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Please submit articles via e-mail, only to: news@waterandwastewater.com |
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::
International Water Awards
Announced
::
Sanford to turn Sludge into
Renewable Energy
::
New AWWA Publication :
"The Business of Water"
::
Is Gas Detection in Sewers
Important?
:: 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!
:: 205,000+ visitors in February !
:: Call For Photographs!
:: Subscribe, Unsubscribe
:: Archive Information
:: About Us
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| Hi Everyone, With over 10,000+ 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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| This
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Featured
Case History |
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WWTP Takes a Bite Out of Tough Solids
The City of Hammonton’s original steel bar screen
rusted while continually allowing debris to pass
through to the oxidation ditch and final clarifier.
Floatables found their way through the plant to the
UV trough, clogging the RAS and internal recycle
pumps along the way. Managers of the Hammonton
Wastewater Treatment Plant took on the challenge of
finding a more efficient screening system....(more) |
More case histories...
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| Call For
Photographs
This week's
photo is of a wastewater treatment plant located at a
racetrack and hotel complex in Charlestown, West Virgina.
The plant's design includes four Aquastore tanks, an aerobic
digestor tank, two SBR tanks and a single post equalization
tank. Aquastore's coating system, glass-fused-to-steel,
ensure long, corrosion free operation.
Photo courtesy
of Jim Wary,
Aquastore
Send us
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