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Water-Jet System Cleans
Oakland's Downtown Sewer
 OAKLAND,
CA -- Last month, in the heart of the downtown business
district, the Oakland Public Works Agency completed probably
the most massive sewer cleaning project ever done in this
city — and hardly anyone noticed.
Using a new high-power
water-jetting system, Oakland-based V&A Consulting Engineers
coordinated the removal of sediment deposits up to three
feet deep from a 66"-diameter sewer beneath 20th Street in
record time, without interrupting service and without the
noisy machinery, exposed sewage piping and rank odor that
usually accompany such jobs.
“They operated for a week,” says
PWA project manager Gunawan Santoso, P.E., “and we didn’t
have a single complaint.”
The cleanout was part of a
condition assessment intended to assure that the existing
sewer system will be adequate for the rapidly growing
neighborhood, explains engineer Jose L. Villalobos, V&A’s
president and CEO. But the decades-old sediment layers made
closed-circuit TV inspection impossible.
“Removing it with a conventional
bucket machine might take have taken a month or more, if it
could be done at all,” Villalobos notes. “Meanwhile, you’d
have a thousand feet of bypass piping obstructing traffic
and the transfer of solids to the disposal truck would be
generating sewage odors.”
At that point Villalobos learned
of Sewer Hog™, an innovative sewer cleaning technology that
uses a 350-gallon-per-minute (gpm) water jet, at 2,000
pounds of pressure, to dislodge obstructions. After a field
trip to see the equipment in action, Villalobos arranged for
Texas-based Garner West, the system’s designer and
manufacturer, to send a unit to Oakland in early April. “If
it worked as we hoped, we would be able to get the data
Public Works needed, and also see a good demonstration of
the technology.”
The system is deceptively simple.
A 200-pound, multi-nozzle waterjet head is attached to the
Sewer Hog’s hose, inserted into a manhole and maneuvered
upstream, where the jet loosens the detritus and forces it
back to the manhole. A powerful downhole pump, essentially a
garbage disposal on steroids, then chews up everything,
including plastic, metal, bricks and rocks, and shoots the
resulting slurry through an 8-inch-diameter hose, at 2500
gpm, up to a pressurized dewatering box at street level. The
sand and grit are taken out and the filtered water goes back
into the sewer.
The equipment was set up near the
Oakland BART station entrance 20th Street and Broadway on
Tuesday, April 4. Cleaning started immediately and continued
for four days, removing all but a few inches of the sediment
from the 66" main. Work was continued over the weekend,
after a connecting 24" pipe was found to be almost totally
blocked with rags and other debris. A total of 46 tons of
sand, gravel and grit was removed and sent to a landfill.
“It wasn’t a complete cleanout,
but with limited funding this had to be essentially a pilot
demonstration project,” Villalobos explains.
Many municipalities have
large-diameter sewers, originally designed to carry combined
sanitary and stormwater flow, but Villalobos says they are
rarely or ever cleaned except after overflows or other
emergencies.
For more information contact:
V&A Consulting Engineers, Inc.
Lake Merritt Plaza
1999 Harrison Street, Suite 975
Oakland, CA 94612
Web: http://www.vaengr.com/
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This
newsletter is sponsored by:
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Microorganisms : Cruise Line
Buys Laser Water Monitor
 SAN
DIEGO, CA -- JMAR Technologies, Inc., a leading developer of
advanced laser technology, through its exclusive cruise ship
distributor, Hyde Marine, has received a purchase order for
its BioSentry(TM) water-monitoring system from Princess
Cruises.
The
BioSentry System recently completed a successful six-month
test run on two separate Princess Cruise ships. The system
was being tested as a security monitor for the presence of
high levels of bacterial contaminants that could result from
deliberate or inadvertent contamination of the ship's water
supply. The two ships had distinctly different destinations,
Alaska and the Mexican Riviera, thus testing the BioSentry
in two very different climates.
"The
cruise ship application exposed the BioSentry system to
challenging environments including high humidity, vibration,
and temperature, requiring our engineering team to make
design changes to meet the operational requirements. We are
thrilled to have overcome the challenges and to receive a
purchase order from Princess Cruises," said Neil Beer,
JMAR's president and CEO. "This industry constitutes one of
our most significant markets with strong future potential
for JMAR. We believe the test program with Princess confirms
our value to the cruise ship industry, a big step toward
growing our business in water safety and security."
BioSentry is a contamination warning system for waterborne
microorganisms. Whereas current water monitoring depends on
batch sampling of water and time-consuming lab analysis,
BioSentry uses laser-based technology to provide continuous,
on-line, real-time monitoring for harmful bacteria and
protozoa. BioSentry is targeted toward a number of
applications across multiple industries, including Homeland
Security, the beverage industry, and municipal drinking
water utilities.
About
JMAR Technologies, Inc.
JMAR
is a leading innovator in the development of laser-based
equipment for imaging, analysis and fabrication at the
nano-scale. The company develops, manufactures and markets
its BioSentry microorganism early-warning system for the
environmental and utility infrastructure industries.
For
more information contact:
Mr. Dennis Valentine
JMAR Technologies, Inc.
Telephone: 858-946-6800
Web site:
http://www.jmar.com/
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New : Flowserve Launches
Learning Resource Center
 DALLAS,
TX -- Flowserve Corp. a global provider of fluid motion and
control products and services, announces the launch of new
Learning Resource Center (LRC) instructional labs, which
offer hands-on technical facilities for pump, valve and seal
system optimization and maintenance training. The LRC is an
innovation in the industry, offering hands-on training in a
simulated plant environment that features complete pumping
systems and equipment from both Flowserve and other
manufacturers.
The
LRC, part of Flowserve Educational Services, sets a new
standard in technical education, with up to 50 percent of
training time spent working in the operational labs with the
pump, valve and seal systems plant professionals use every
day. Courses are specifically designed to increase
participants' skill levels in equipment selection,
installation, repair, failure analysis, and troubleshooting.
Participants return to work with practical knowledge to
improve plant performance, increase machine availability,
lower the cost of maintenance, and improve plant safety.
"The
Learning Resource Center presents another opportunity for
Flowserve to help customers achieve success in their
businesses," said John Jacko, chief marketing officer for
Flowserve. "Utilizing equipment from Flowserve as well as
other manufacturers enables our state-of-the-art training
center to create a real-world environment that demonstrates
our commitment to our customers and validates Flowserve as a
thought leader in the fluid motion and control industry."
Three
of the center's training labs, totaling 4,300 square feet,
enable participants to analyze equipment failures and
determine their causes, learning first-hand how to prevent
pump, seal and control valve failure. The inclusion of
equipment from various manufacturers ensures that learning
takes place in a real-world environment.
Four
900-square-foot power labs feature 26 operational pumping
systems, many with transparent piping and housings so
participants have a real-time view of fluid motion and
typical pumping system failures. Participants also learn to
create pump curves, troubleshoot cavitation problems, and
perform "dead head" tests and other vital diagnostics.
The
LRC's instructional team - experts in pumps, valves and
seals - have more than 100 years of combined experience in
industries from water treatment to aerospace. Because of
this breadth of experience, trainers have handled many
specific engineering, operator and mechanical problems, and
are able to recreate and then solve many of those problems
in the operational labs.
The
Learning Resource Center is located in Irving, Texas, in the
heart of the Dallas/Fort Worth Metroplex. Courses are also
offered at Flowserve Learning Centers across the U.S. and
on-site at plant locations around the world.
For
information about Flowserve Educational Services and the
Learning Resource Center, contact Juliette Rowe, director,
customer training, by phone at +1 (972) 915-1626 or by
e-mail at
jrowe@flowserve.com.
Visit
Flowserve Educational Services online at:
http://www.flowserve.com/education
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Moving Bed Biofilm Reactor - Ideal For WWTP Retrofits
 Providence,
RI -- The AnoxKaldnes’ Moving Bed™ Biofilm Reactor
(MBBR™) has been proven to achieve dramatic reductions
in biochemical oxygen demand (BOD) and chemical oxygen
demand (COD) in municipal and industrial applications.
This system is a high rate, fixed film process resulting
in a plant footprint that is 20% smaller than a
conventional activated sludge system.
This gives the customer the
capability to retrofit existing tankage and triple the
treatment capacity. MBBR applications are found in the
municipal (for nitrification and denitrification),
chemical, petrochemical, pharmaceutical, pulp and paper,
and food and dairy industries where waste loading
conditions are widely variable.
The process can be used to
retrofit existing wastewater treatment plants for
increasing treatment capacity and/or meeting new
effluent guidelines with respect to ammonia and total
nitrogen without adding any extra tankage.
The MBBR process utilizes
thousands of tiny, polyethylene biofilm elements to
provide a home for a vast, highly active bacteria
culture. These buoyant elements are kept in constant
motion throughout the entire volume of the reactor,
resulting in uniform, highly effective treatment.
Advanced wastewater treatment
AnoxKaldnes is a high
technology company focusing on biological wastewater
treatment. The company has a strong position on the
market, which is acquired by adopting a unique method of
operation, emanating from the need and possibilities of
the microorganisms.
Web site:
http://www.anoxkaldnes.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. Sessler needs soft water for soup manufacture:
We are currently in the
process of designing a soup manufacturing plant and need
direction regarding water treatment and wastewater
treatment.
(Click
here to post a reply)
Thanks,
Louis Sessler
West Wing Development
louis@west-wing.com
Ms. Hong needs help with BOD dilution factor:
I would like to ask a
question on BOD analysis.
For sample dilution, I use 3
times for the dilution factors. For example, 10%, 30%
and 90% of the samples. Is it correct on 3 times
dilution (ex-colleagues tell me to do so).
If it is correct, could you
tell me why? And how to calculate on it?
Or for the ease that I can
understand, if I know the result of the sample, how can I
calculate its dilution factor?
(Click
here to post a reply)
Thank you,
Julianna Hong
EPD
hifi0622@yahoo.com.hk
Help Forum:
Share your
expertise with others in our
Help
Forum. |
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| From the Job
Fair : Territory Pump
Sales - Massachusetts
Our client is a large
manufacturer of Submersible Pumps sold into Wastewater
Treatment. The Territory Sales role that I am currently
working in the Boston area.
This will be selling direct
to engineers and contractors mostly in municipalities and
industrial in a regional two state territory in
Massachusetts and Rhode Island. Overnight travel will be
minimal.
Our client offers a
competitive base salary, bonus program, car allowance, and
full benefits program including 401k and company paid
pension program.
If you are interested in
hearing more I will need a hard copy of your resume
submitted to
Mike.Rocky@PrincetonOne.com along with a daytime phone
number.
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
© 1999-2006 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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::
Water-Jet System Cleans
Oakland's
Downtown Sewer
::
Microorganisms : Cruise Line
Buys
Laser Water Monitor
::
New : Flowserve Launches
Learning
Resource Center
::
Moving Bed Biofilm Reactor -
Ideal For
WWTP Retrofits
:: The News Center : More headlines
:: The Water and Wastewater Blog
:: Help Forum
::
Water and Wastewater Plant
Directory : Featured Plant
:: The Job Fair
:: Top Picks at Amazon.com
:: Ask Tom! Column!
:: 144,000+ visitors in May !
:: Call For Photographs!
:: Subscribe, Unsubscribe
:: Archive Information
:: About Us
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| Hi Everyone,
Swooshing out and cleaning
sewers, using lasers to detect microorganisms and a free
report from the EPA are covered in this issue of our weekly
newsletter, read on!
"I Never Win Anything"
Does that sound like you?
Right now the odds of you winning our iPod Giveaway are one
in four! If you add your plant to the Water and Wastewater
Plant Directory, you are in the "drivers seat", because you
will be our fourth entry to-date. Like shooting fish in a
barrel, how can you go wrong.
Stop your whining and read
our article - find out how you can be the winner!
With over 8,900+ 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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 "One
of the very best engineering texts that I have run across in
my career" |
|
Pumping Station Design
by Robert L. Sanks
Hardcover, 1000 pages, February 2001
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| This
months Ask Tom! article |
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Zeta Potential in Water Treatment Process Control
Guest article by Bruce Jefferson and Simon A Parsons
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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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First Line of Defense
for Prison Effluent
For years, Graterford
Prison, a maximum security facility in Pennsylvania,
experienced continuous problems with their
wastewater system. Their antiquated equipment
consisted of bar screens, grinders and comminutors
which were frequently overwhelmed by the sewage
generated daily by 3,600 inmates...(more) |
More case histories...
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144,000+ visitors in May ! |
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| Call For
Photographs
This week's photo is of a
Vaughan chopper pump handling raw screenings at the
headworks at the Lott WWTP in Olympia, WA. The screenings
are chopped and pumped up to the screw centrifuge for
dewatering before trucking to the landfill.
Photo courtesy John Hayes of
Vaughan Company, Inc.
Send us
your photos: We would love to have your photo of
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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Water and Wastewater Newsletter was sent to 8,987 water and wastewater treatment professionals at the time of this
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"Presents
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