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Natgun and DYK Merge to form DN Tanks
 Wakefield,
MA and El Cajon, CA -- Natgun Corporation of Wakefield, MA
and DYK Incorporated of El Cajon, CA jointly announced the
merger of their companies on January 4, 2011, and the
formation of their new parent company “DN Tanks, Inc.”.
Both companies specialize in the
design and construction of prestressed concrete storage
tanks used for potable water, waste water, chilled water,
and other liquids. The merger of the two companies, with
over 130 years of combined experience, creates the largest
producer of wire and strand-wound prestressed concrete tanks
in the world.
Initially, Natgun and DYK will
operate under their existing names, as divisions of DN
Tanks. As the integration process takes place, they will
evolve into a single operating company. A four-member Board
of Directors, comprised of Charles Crowley, William
Hendrickson, William Crowley, and David Gourley, will lead
DN Tanks, Inc. Charles Crowley and William Hendrickson will
serve as Co-CEO’s.
Both DYK and Natgun design and
construct prestressed concrete tanks in accordance with the
American Water Works Association Standard D110. Each company
brings specialized skills to meet varying project
requirements. While there are some differences in the
methods of tank construction, both companies share a
commitment to quality, durability, and to delivering
long-term value for their customers. The merger of the two
companies into DN Tanks results in expanded construction
capacity, unmatched technical expertise, and proficiency in
multiple types of proven tank designs to provide customized
liquid storage solutions for their customers.
“Our vision for the merger is to
leverage the strengths of each company to become more
efficient, and to increase construction capacity. That
results in expanded opportunity for utilities and industries
to enjoy the benefits of prestressed concrete tanks”, said
DN Tanks Co-CEO Charles Crowley. He also noted opportunity
for employees. “By combining our two organizations, we will
create an environment that will allow dedicated and talented
employees from DYK and Natgun to thrive in the future.”
William Hendrickson, DN Tanks
Co-CEO stated, “The combination of DYK and Natgun into the
newly formed DN Tanks brings together two very strong
organizations. With our combined resources, we will expand
our ability to deliver the best product and service to our
clients. As a combined company, DN Tanks will excel in terms
of solving problems, creating solutions, and delivering
well-managed, conservatively designed, safe projects on time
and within budget.”
With Operations Centers in
Massachusetts, Texas, and California, as well as multiple
Regional Offices, DN Tanks will serve clients nationally and
internationally.
Source:
http://www.dntanks.com/
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This
newsletter is sponsored by:
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WaterRF Funds Perchlorate
Treatment Research
 Denver,
CO -- The Water Research Foundation (WaterRF) is funding a
special project to assess the current state of science
related to perchlorate treatment technologies and
regulations in the United States. The Foundation’s new
research anticipates new regulations from the U.S.
Environmental Protection Agency regulating perchlorate in
drinking water.
Perchlorate is a chemical
primarily used in the manufacturing of explosives and rocket
propellants for the defense and aerospace industries. Low
levels of ammonium perchlorate have also been found to occur
naturally in the environment. Perchlorate contamination is
becoming a widespread concern as sources of such
contamination continue to be identified and more sensitive
analytical methods are developed that can detect this
compound in soil, groundwater, and surface water.
WaterRF’s Rapid Response Project
titled, “State of Science on Perchlorate Treatment
Technologies and Regulations,” will be conducted by Dr. Geno
Lehman, P.E. and Dr. Arun Subramani, both from the MWH
Americas, Inc. The study is scheduled to be completed in
April 2011. Once finalized, WaterRF will host two
informational workshops for subscribers.
“It is crucial that EPA’s new
regulations pertaining to perchlorate be based on sound
science,” said Rob Renner, Executive Director of WaterRF.
“The research we are initiating will help establish a solid
benchmark of the current state of the science and existing
regulations from which EPA and other interested parties can
make informed decisions.”
Source:
http://www.waterrf.org/
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Siemens’
Disc Filters Increase Capacity at Ohio WWTP
 Warrendale,
PA -- The Metropolitan Sewer District of Greater Cincinnati
(Ohio, USA) will be installing four Forty-X disc filters
from Siemens Water Technologies at its Sycamore Creek
Wastewater Treatment Plant. Part of a wastewater treatment
improvement project, the filters will allow the plant to
increase design flow capacity from 6 to 9 mgd (22,712 to
34,069 m3/d), with a peak flow capacity of 18 mgd (68,137
m3/d). The project also changes the plant’s process from
conventional activated sludge treatment to advanced
biological phosphorus removal.
The disc filters will replace the
Sycamore Creek plant’s current sand filtration system, which
has reached its usefulness due to increased flow volumes.
Three of the disc filters will be operational, with one
remaining in stand-by mode. The Forty-X disc filters’ small
footprint and versatile hydraulic capabilities will allow
them to be easily retrofitted into the sand filters’
existing concrete tankage, using only four of the eight
filter concrete basins to meet the increased plant capacity.
The Forty-X disc filter’s pleated
filter media panel design provides 40% more filtration area,
compared to flat panel designs. The inside-out filtration
design offers many distinct advantages over the outside-in
filtration technology. For example, all mechanical and
functional hardware as well as the filtration panels are
accessible from the top of the filter without draining the
filter tank.
The filter panel’s spoke
(housing) design discourages floatable materials from
catching and impeding water flow through the filter.
Additionally, for safety and convenience, permanently
mounted sliding covers allow operators easy access to all
the filter components as well as keeping blowing debris out
of the tank and deterring algae growth within the filter
tank.
Source:
http://www.siemens.com/
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Innovative Biogas Solution
for Alaskan WWTP
 Weston,
MA -- A year ago, Palmer, Alaska, faced a problem common
to thousands of towns and cities: its aging 3-lagoon
wastewater treatment plant was failing—and faced an
estimated $60 million price tag for upgrades. Today,
Palmer’s treatment plant is on track to treat more
wastewater with less energy, and even generate
power—without expanding the facility’s size or paying
staggering upgrade costs.
“We’re going to significantly
reduce capital costs,” says Palmer’s Public Works
Director Carter Cole. “But this has so many other
implications. We’re taking the waste out of wastewater.”
The town contracted
wastewater system consulting firm, Ecological
Engineering Group (EEG), which designed a phased
solution to optimize the performance of the existing
lagoons by adding floating insulation (Phase 1) and
injecting free waste heat from a combined heat and power
plant fueled with biogas from an anaerobic digester
(Phase 2). The digester will use organic wastes such as
animal manures, garbage and sewage sludge as feedstock
to produce methane to power the entire plant — and sell
excess power to reduce the town’s utility rates through
energy recovery.
These low-cost additions to
the wastewater treatment facility, funded by the
American Recovery and Reinvestment Act, boost natural
processes to get more and better treatment in a smaller
space, stabilizing the town’s utility rates. A second
part of phase 2 will collect and re-inject the waste
heat from a proposed natural gas fueled electric power
plant into the lagoons, allowing even more wastewater to
be treated in the same space. The current 1
million-gallon-per-day (gpd) plant will increase in
capacity to 8 million gpd simply by adding sufficient
heat to the influent to maintain an optimum environment
for microbial growth and reproduction. The result will
be cleaner water, reduced operating costs, and increased
energy efficiency and production.
“Ecological Engineering Group
is the front-runner in this field,” Cole says. “No other
firm came close to meeting our needs. Other firms didn’t
want to even consider this approach. They wanted to sell
us an expensive new treatment plant. EEG was the only
one that gave us accurate information about what was
going on in the treatment works and what could be done
to solve our problems without starting over, eliminating
a $60 million-dollar upgrade cost.”
The principle behind the
design is a patent-pending EEG approach known as the Del
Porto Q10 System. “Q10” refers to the biological
principle that warming a metabolic process by 10 degrees
Centigrade will boost the rate of activity by a factor
of two. For Palmer, it means doubling the amount of
treatment in the lagoon for every ten degrees rise in
temperature. The result is treating more wastewater to a
higher standard - producing cleaner discharges to
surface waters and creating opportunities for water
reuse.
“This has huge potential for
cities and the private sector, “according to Cole, “it
shows that wastewater utilities can be self-sufficient
for costs and energy, and even serve as generators of
significant volumes of clean energy. What we learned in
Palmer should go statewide – the energy in wastewater is
an untapped resource, the EEG approach simply makes
economic and ecological sense.”
Source:
http://www.ecological-engineering.com/
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Video
Center : Featured Videos
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your water and wastewater treatment videos with everyone - promote your plant, your
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Hot Messages from the Help Forum
People post their requests
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Mr. Jamil needs help with
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I have a requirement of a
client that needs to use disc oil to be added upstream the
API, in order to remove oil and sediment.
The question is any one knows
more info about both disc oil & API (even suppliers might
work), What will be the efficiency for removing oil?
Thanks,
Dania Jamil
Veolia Water
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| About Us :
Water and Wastewater Newsletter
© 1999-2010 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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::
Natgun and DYK Merge to form
DN Tanks
::
WaterRF Funds Perchlorate
Treatment Research
::
Siemens’
Disc Filters Increase
Capacity at Ohio WWTP
::
Innovative Biogas Solution for
Alaskan WWTP
:: 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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| Hi Everyone, With over 13,000+ subscribers,
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Thanks,
Joe Taylor, Editor
jtaylor@waterandwastewater.com
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Water & Wastewater – Liquid Tank Selection
In liquid
storage containment, quality and value drives today’s
tank selection process. With advances in fabrication
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field construction techniques, some storage products
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products have pushed to the “front of the line” in
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Taskmaster Grinder Solves String Problem
Essilor Labs of America,
Omega Optical Laboratory in Dallas, Texas
specializes in the production of state-of-the-art
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the laboratory is a prescription lens composed of a
polycarbonate material. The lens blank is generated
using specialized CNC machinery. During the
generating process, the machine sprays water based
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| Call For
Photographs
This week's
photo is of a TecTank digester being erected at a wastewater
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Photo courtesy
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CST Storage .
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