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ASCE
: Water Trust Fund proposed
 Washington,
D.C. -- As Americans, we owe our health and much of our
quality of life to the improvements that have been made
during the past century to the drinking water and wastewater
systems on which we rely. Despite the importance of those
systems to our daily lives and the nation’s economy, our
water infrastructure currently faces a five-year funding
shortfall of more than $100 billion.
At a press conference this
morning to announce Rep. Earl Blumenauer’s plan to introduce
legislation to create a Water Trust Fund (the Water
Protection and Reinvestment Act), the American Society of
Civil Engineers (ASCE) expressed strong support for the
creation of a stable, long-term funding mechanism and
commended Blumenauer for his support for the nation’s
infrastructure.
The Society noted that such a
commitment will be essential to the renewal of these vital
national resources, but that provisions—such as making the
program deficit-neutral and including budgetary firewalls to
prevent the diversion of monies collected—must be included
to ensure long-term, sustainable success.
In the Society’s 2009 Report Card
for America’s Infrastructure, ASCE assigned both wastewater
and drinking water systems a barely passing grade of D-.
According to ASCE president D.
Wayne Klotz, P.E., D.WRE, F.ASCE, “Every day we rely on
seemingly invisible water and wastewater systems to support
our quality of life and the nation’s economy, and yet they
suffer from inattention and underfunding. A long-term,
dedicated funding source, like the one proposed by
Congressman Blumenauer, will go a long way in ensuring that
these vital systems can continue to support the health and
safety of the American people.”
Later in the afternoon, a
representative from ASCE’s Report Card for America’s
Infrastructure Advisory Council, Dale Jacobson, P.E., BCEE,
will testify before the House Transportation and
Infrastructure Committee’s Subcommittee on Water Resources
and Environment about the potential challenges facing the
trust fund proposal, as well as the potential opportunities
and benefits such a program could bring.
Source:
http://www.asce.org/
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Wet, marshy grounds no match for
driving-style anode
 Doylestown,
PA -- Designed to overcome the obstacles of installing
cathodic protection (CP) systems in wet, marshy grounds,
Matcor’s MMP™-X Direct Drive Anode is a prepackaged mixed
metal oxide (MMO) anode design that reduces installation
time and materials. Designed with a unique driving cone and
driving assembly, the anode can be driven into soft soil,
mud or sand to depths of 30 ft or more without the need for
drilling equipment.
“Non-marine steel pilings are
typically used to provide a stable base to support the
immense weight of liquid natural gas (LNG) storage tanks in
wet, marshy soils,” says Matcor President William Schutt.
“Matcor’s proprietary driving-cone design is a proven
solution specifically meant for driving anodes into these
types of soils to prevent corrosion of the steel pilings or
other buried structures.”
Wet, marshy grounds are often
subject to low-resistivity, highly corrosive soils, making
CP a necessity in this environment. Matcor’s MMP™-X MMO
Anodes can be used to protect:
· Pipelines
· Storage Tanks
· Sheet Pile Walls (Land Side)
· Structural Piles
· Other Buried Structures
Unlike the traditional method of
drilling a hole into the ground first and then placing the
anodes into the hole, the MMP™-X Direct Drive Anode is meant
to be driven or pushed into the ground.
These anodes were first used in
1983 and have been successfully used in a variety of
projects around the world. When installing these anodes,
protection of the cable connection is critical so specially
engineered driving tools are used to protect the cabling
during the installation.
The anode element is prepackaged
with tightly compacted Matcor high grade carbon backfill in
a heavy gauge steel canister. The anode lead cable
connection is the multi-step, PL®-connection with the anode
being looped to create multiple connections between the
anode and the cable. The standard design life of the anode
is 20 years at rated operating current in soil. Longer
design life is available upon request.
Source:
http://www.matcor.com/
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Abanaki
Portable, solar-powered “Oil
Skimmer”
 Cleveland,
OH -- Abanaki Corporation offers the Oil Grabber® Model 8
with a Solar Option, the leading oil skimmer with a
solar-power enhancement, which makes it a portable
oil-skimming powerhouse.
Applying the Model 8’s already
proven success at removing oil from water and water-based
solutions, this unit provides a continuous belt and wiper to
remove up to 40 gallons of oil per hour from the fluid
surface - and lets you “run with the sun.” A 12-V motor
powers the compact, self-contained unit. That motor runs off
a deep-cycle battery, which in turn is recharged by an
adjustable solar panel. It takes only a couple of hours to
recharge the battery.
The solar option makes this unit
ideal for locations far from electric service, such as mine
sites and the remote corners of steel mills, food processing
plants, and rail yards. At times, skimming alone can reduce
oil to an acceptable level of water purity. Depending on the
characteristics of the liquid, it is possible for the Model
8 solar oil skimmer alone to reduce oil content to less than
five parts per million in water. The unit is used as a
pretreatment before disposal, as well as in conjunction with
coalescing systems and with systems where it prevents
filters from blinding prematurely.
Using an upper and lower pulley
system, the belt runs through contaminated liquid to pick up
oil from the surface. The belt travels over the head pulley
and then passes through tandem wiper blades, from which oil
is scraped off both sides and discharged. The tail pulley
features flanges that allow the pulley to roll freely on the
inside of the belt without becoming dislodged. No bearings
are needed; the unit does not need to be fastened to the
tank.
An optional tether and cage
assembly is offered to prevent the tail pulley from being
dislodged. The Oil Grabber Model 8 can be used in tanks with
depths as shallow as one foot or as deep as 100 feet.
Source:
http://abanaki.com/
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A single atom makes a big
difference in Purer Water
 Albuquerque,
NM — By substituting a single atom in a molecule widely
used to purify water, researchers at Sandia National
Laboratories have created a far more effective
decontaminant with a shelf life superior to products
currently on the market.
Sandia has applied for a
patent on the material, which removes bacterial, viral
and other organic and inorganic contaminants from river
water destined for human consumption, and from
wastewater treatment plants prior to returning water to
the environment.
“Human consumption of
‘challenged’ water is increasing worldwide as preferred
supplies become more scarce,” said Sandia principal
investigator May Nyman. “Technological advances like
this may help solve problems faced by water treatment
facilities in both developed and developing countries.”
The study was published in
June 2009 in the journal Environmental Science &
Technology (a publication of the American Chemical
Society) and highlighted in the June 22 edition of
Chemical & Engineering News. Sandia is working with a
major producer of water treatment chemicals to explore
the commercial potential of the compound.
The water-treatment reagent,
known as a coagulant, is made by substituting an atom of
gallium in the center of an aluminum oxide cluster —
itself a commonly used coagulant in water purification,
says Nyman.
The substitution isn’t
performed atom by atom using nanoscopic tweezers but
rather uses a simple chemical process of dissolving
aluminum salts in water, gallium salts into a sodium
hydroxide solution and then slowly adding the sodium
hydroxide solution to the aluminum solution while
heating.
“The substitution of a single
gallium atom in that compound makes a big difference,”
said Nyman. “It greatly improves the stability and
effectiveness of the reagent. We’ve done side-by-side
tests with a variety of commercially available products.
For almost every case, ours performs best under a wide
range of conditions.”
Wide-ranging conditions are
inevitable, she said, when dealing with a natural water
source such as a river. “You get seasonal and even daily
fluctuations in pH, temperature, turbidity and water
chemistry. And a river in central New Mexico has very
different conditions than say, a river in Ohio.”
Brought to the river: Sandia
researchers May Nyman and Tom Stewart take a water
sample on the banks of the Rio Grande. The two developed
a patent-applied-for, material-based approach to
purifying water that has generated commercial interest.
The Sandia coagulant attracts
and binds contaminants so well because it maintains its
electrostatic charge more reliably than conventional
coagulants made without gallium, itself a harmless
addition.
The new material also resists
converting to larger, less-reactive aggregates before it
is used. This means it maintains a longer shelf life,
avoiding the problem faced by related commercially
available products that aggregate over time.
“The chemical substitution
[of a gallium atom for an aluminum atom] has been
studied by Sandia’s collaborators at the University of
California at Davis, but nobody has ever put this
knowledge to use in an application such as removing
water contaminants like microorganisms,” said Nyman.
Source:
http://www.sandia.gov/
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| Help Forum :
Hot Messages from the Help Forum
People post their requests
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Mr. Kumar needs help with
MBR WWTP:
We are operating one MBR
Sewage Treatment Plant. We have got some problem in our
plant. poor performance of the aeration tank caused some
problem even at the maximum MLSS level.
Supplier Suggesting to dose
Flux Enhancement (basically Polymer, I think) with the Mixed
Liquor to improve the situation. But generally, the Membrane
Manufacturers are not suggesting to use polymer in Sewage
treatment Plants.
Can anybody suggest, it could
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Mixer liquor will be recirculated back to the aeration Tank.
Possibly It might affect the bacterial activity in the
aeration Tank., right.
Please somebody advise. (Click
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Oxy Oman
senthil_kumar@oxy.com
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| Water
and Wastewater Plant Directory - Featured Plant
 South
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Renton, Washington
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of Seattle. Besides treatment operations, the plant
site includes facilities for biosolids handling,
water reuse and testing alternative treatment... (Click
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| About Us :
Water and Wastewater Newsletter
© 1999-2009 Water and Wastewater.com
Home page: http://www.waterandwastewater.com
Joseph Taylor, Editor
Water and Wastewater Newsletter
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::
ASCE : Water Trust Fund proposed
::
Wet, marshy grounds no match for
driving-style anode
::
Abanaki Portable, solar-powered
“Oil Skimmer”
::
A single atom makes a big
difference
in Purer Water
:: The News Center : More headlines
:: The Water and Wastewater Blog
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::
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Directory : Featured Plant
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"...a hands-on guide to
understanding the biology and biological conditions that
occur at each treatment unit." |
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Wastewater Bacteria (Microbiology)
by Michael H. Gerardi
Paperback, 272 pages, 2006
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| This
months Ask Tom! article |
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Using Zeta Potential to Optimize Water Treatment
Guest article by Ana
Morfesis & Ulf Nobbmann, Malvern Instruments
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Featured
Case History |
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Kruger Case Study : Wildcat Hill WWTP, Flagstaff, AZ
In order to achieve more
stringent effluent limits, the City of Flagstaff
worked with Black and Veatch to upgrade the Wildcat
Hill Wastewater Treatment Facility, located in
northern Arizona. The facility produces a high
quality effluent, as well as reclaimed water, which
is distributed throughout the region to construction
companies and golf courses. The remaining treated
water is discharged into the Rio de Flag Creek....(more) |
More case histories...
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Photographs
This week's
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industry.
Submitted by
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