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Southern California WWTP goes Solar
 Los
Angeles, CA -- With a literal flip of a switch, the
Metropolitan Water District of Southern California added to
its investments in solar power today.
Metropolitan board Chairman
Timothy F. Brick flipped a switch signifying activation of a
10-acre field of solar panels at the district’s Robert A.
Skinner Water Treatment Plant in the Temecula Valley of
southwestern Riverside County.
The 1-megawatt solar installation
will generate about 2.4 million kilowatt-hours (kWh) of
clean, renewable energy a year, nearly 25 percent of the
power used by the plant and equal to the power used by about
250 homes annually. The produced energy will be used
directly at the plant, helping to offset nearly 2 million
pounds of carbon emissions a year. Last year, the plant
consumed about 10.5 million kWh of electricity, at a cost of
nearly $1.2 million.
“As public stewards of our
natural resources, Metropolitan is ever-conscious of the
impact our operations have on the environment, from the
delivery and treatment of water to the day-to-day operation
of our facilities,” Brick said.
“Just as we have assumed a
leadership role in promoting conservation and other
waterwise activities such as recycling and groundwater
cleanup, we are compelled to reduce our carbon footprint,”
he said.
Debra C. Man, Metropolitan
assistant general manager and chief operating officer, said
generating solar power at the Skinner plant is part of a
strategic power plan to be considered by Metropolitan’s
board this summer. The proposed plan envisions Metropolitan
having 10 megawatts of solar power installed throughout the
district’s six county service area over the next five years.
“The proposed plan will outline a
number of energy-saving strategies at our
facilities, while laying out immediate, short-term,
intermediate and long-term goals,” Man said. “The plan’s
goal will be to maximize carbon reduction at all our
distribution facilities and develop renewable energy to
support deliveries on the Colorado River Aqueduct.”
Skinner’s solar collection field
features 462 sun-tracking stations, each supporting 10
230-watt panels. Each station of panels, weighing about 40
pounds apiece, will generate about 5,000 kilowatt hours of
electricity a year. The stations employ a tracking system
that allows the panels to follow the sun’s path from east to
west, producing 25 percent more power than fixed panels.
Man said the $10 million
solar-generating facility is expected to pay for itself in
six to eight years or sooner, as the solar generation
facility would operate during peak demand periods when
electricity costs are the highest. Metropolitan will receive
more than $5 million in rebates from Southern California
Edison during the first five years of operation.
Metropolitan’s program also is
consistent with Gov. Arnold Schwarzenegger’s California
Solar Initiative and state legislation, which have
established a statewide goal to create 3,000 megawatts of
new, solar-powered electricity by 2017, Man said.
Source:
http://www.mwdh2o.com/
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This
newsletter is sponsored by:
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Headworks introduces new Drum
Screen Line
 Houston,
TX -- The TurboDrum series from Headworks has been
specifically engineered to meet the higher levels of
screenings required by modern municipal wastewater
facilities. Innovative advances in water treatment such as
Membrane Bio Reactor (MBR) and Moving Bed Biofilm Reactor
(MBBR) processes require higher levels of screenings removal
(liquid-solid separation) on the front end. Headworks
TurboDrums are a reliable, cost effective way to achieve
these removal challenges.
“By utilizing wedge wire
manufactured by Johnson Screens®, Inc., we can offer proven,
high quality screening capacity to the municipal industry at
competitive rates.” said CEO Michele LaNoue. “And assembly
in Texas assures compliance with Buy American
requirements.”
This equipment is available in a
wide range of hydraulic and separation capacities to allow
customization for the most effective screening solutions.
The TurboDrumIF™ Internally Fed
Drum Screen: with screen openings as small as .25mm, is
ideally suited for fine liquid-solid separation. TurboDrumIF
effectively removes hair, fibers and suspended material from
municipal wastewaters, minimizing operation and maintenance
costs. This heavy duty drum screen works extremely well when
paired with MBR systems, package treatment plants, sludge
dewatering, and sludge thickening, with flow capacities up
to 2400m3/d (15.2 mgd).
The TurboDrumIN™ In-Channel
Inclined Drum Screen is designed to be installed in a
channel at a 35-degree angle for gravity fed applications.
This type of screen is an exceptionally good choice for fine
screening in front of MBR systems. This all-in-one system
handles flows up to 4600 m3h (29mgd) with minimum
maintenance.
TurboStat™ Sidehill Static Screen
is one of the simplest and most economical methods for
solids separation. This screen is best suited for small
municipal wastewater plants and various industrial
applications. The TurboStat is available in stainless steel
or fiberglass and requires only minimal maintenance with
flows up to 1,000 gpm.
Source:
http://www.headworksusa.com/ |
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AWWA
Publication : Water Audit and Loss Control Manual
 Denver,
CO -- Denver, CO -- The American Water Works Association
(AWWA) announced today the publication of the third edition
of AWWA manual M36,
"Water Audits and Loss Control Programs".
A properly executed water audit
and a loss control program are the most effective ways for a
utility to conserve water, save operating expenses, and
increase revenues. Water Audits and Loss Control Programs
(M36) provides step-by-step guidance and tools for
performing a standardized water audit and implementing a
water loss control program for all water utilities.
The new third edition provides an
improved auditing method—the IWA/AWWA Water Audit— developed
by the International Water Association Water Loss Task
Force. This method, recommended by AWWA as current best
management practice, tells utilities what information they
need, how to get that information, and how to enter it on
water audit worksheets. The new method also redefines and
standardizes water audit and water-loss control language and
approach, making it useful to utilities worldwide.
Highlights in Water Audits and
Loss Control Programs (M36) include sample forms that allow
utilities to plan and control water audit and leak detection
work, and keep track of leak repairs. The manual also
provides actual case studies of water audit and loss control
programs developed and implemented by small, medium, and
large North American utilities. And, while the methods and
tools offered in this manual are designed to work for water
utilities of all sizes, they have been carefully structured
with small water systems in mind.
Additionally, AWWA’s Water Loss
Control Committee provided a free, downloadable, water audit
software program. The software allows utilities to conduct a
basic water audit quickly and inexpensively (ideal for small
systems). When used in conjunction with manual M36, the
software is an excellent supplement to the benefits of a
water audit and loss control program. Audit software is
available on the WaterWiser web site at
www.waterwiser.org.
Utilities will achieve more
accurate results than ever before with the auditing methods
provided in Water Audits and Loss Control Programs (M36).
Buy the manual on Amazon.com now:
Water Audits and Loss Control Programs
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U.S. Army Deploys New Water
Purification Technology
 Wilmington,
MA -- The United States Army is utilizing
state-of-the-art membrane water purification technology
to support highly mobile military operations and
humanitarian missions. Mechanical Equipment Company Inc.
(MECO), of Sugar Land, Texas, has designed a Lightweight
Water Purifier (LWP) that can be easily transported to
remote locations to produce safe drinking water from
almost any available raw water, including highly-turbid
surface water, brackish water and seawater.
Additionally, the LWP is also capable of purifying water
contaminated with nuclear, biological and chemical
warfare agents.
The new LWP is light enough to be carried by four
soldiers and simple enough for two operators to assemble
and begin producing water in just 45 minutes from a
water source such as a river, lake, pond, or ocean. The
entire system can be transported in the cargo space of a
HMMWV and by a single haul of a medium-lift utility or
assault helicopter such as the UH-60 Black Hawk.
In
the past, desalination systems had been designed for
conventional seawater salt concentrations of 35,000 ppm,
however in the Middle East, the salinity is much higher.
It is 45,000 ppm in the Arabian Gulf, and in
"waterholes" in the desert it can reach 60,000 ppm. MECO
specifically tests each LWP to verify that it meets this
60,000 ppm requirement, enabling the systems to treat
any water, anywhere in the world.
The compact LWP unit will produce 125 gallons per hour
(gph) from fresh or brackish water and 75 gph from
seawater, sufficient production levels to support
company/battalion-sized units in the field. The exact
number of people that the LWP unit can sustain in the
field is proportional to the water consumption scenario.
For example, if the unit is used solely for drinking
water, it will be able to support many more soldiers
than if it is used for general purposes such as cooking,
cleaning, showers, or laundry.
Evolution of Portable Water Treatment
Water filtration technology has evolved significantly
since MECO began designing and manufacturing
transportable water treatment systems for the U.S.
military more than sixty years ago. In fact, the
original thermal desalination systems used by the Marine
Corps in the invasion of Iwo Jima employed MECO’s
patented vapor compression technology.
The new LWP combines two types of membrane filtration:
ultrafiltration (UF) membranes pretreat the water prior
to processing by reverse osmosis (RO) membranes. This
design replaces the Army’s previous generation of
portable water processing equipment, which pretreated
the RO feed water with multi-media filters (MMF) and
disposable cartridge filters.
The MMF and cartridge filters posed several problems.
Fundamentally, they were only capable of removing
suspended solids between approximately 1-5 microns,
allowing some particulate breakthrough and causing quick
fouling of the RO membranes.
The other problem was that the cartridge filters
required frequent replacement, as often as every half
hour in some cases. This problem extended beyond the
labor involved in replacing the filters. More
importantly, the continual re-supply of consumable items
can be a logistical challenge – and quite dangerous – in
remote locations and under combat conditions.
Source:
http://www.kochmembrane.com/
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Featured Videos
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your videos with everyone - promote your plant, your
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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.
Chellappa needs help with
biogas in boilers:
I have gone through the
impact of H2S in biogas boilers. It's quite interesting but
confusing too. I read in several articles that the H2S cuts
short the service life of boiler, right? Then why does it
work without any problem in some plants?
Some of the members say, even
with 3% H2S, they face no problems! Where should the line be
drawn? Theoretically boilers will be affected if the H2S
concentration exceeds 500 ppm.
So my question is, at what
concentration is H2S removal technology essential? (Click
here to post a reply)
Thank you,
Raji Chellappa
BIOTEC Asia
rajichellappa.biotec@gmail.com
Help Forum:
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Fair: We have a number of job openings on the Job
Fair, here are just a few of them we would like to share
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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
3948 South Third Street, No. 121
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Email: jtaylor@waterandwastewater.com
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::
Southern California WWTP goes
Solar
::
Headworks introduces new Drum
Screen Line
::
AWWA Publication : Water Audit
and Loss Control Manual
::
U.S. Army Deploys New Water
Purification Technology
:: The News Center : More headlines
:: The Water and Wastewater Blog
:: Video Center
:: Help Forum
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Directory : Featured Plant
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:: About Us
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| Hi Everyone,
Solar energy, screening and much
more this month, check it out in this week's issue, read on!
With over 11,000+ 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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"...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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Structural Aluminum Roof for Water Reservoir in CA
A common problem facing
cities across the U.S. in the first part of the 21st
century is the deterioration of water and wastewater
infrastructure. Specifically, potable and
non-potable water tanks all over the country are in
dire need of rehabilitation. In 2007, the City of
San Diego along with consulting engineering firm,
Simon Wong Engineering, concluded that the existing
concrete roof on the Rancho Bernardo Reservoir was
in need of replacement...(more) |
More case histories...
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