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Microorganisms in Toxic Groundwater Studied
 Oak
Ridge, TN -- Microorganisms can indeed live in extreme
environments, but the ones that do are highly adapted to
survive and little else, according to a collaboration that
includes Department of Energy's Oak Ridge National
Laboratory and Joint Genome Institute (JGI) and the
University of Oklahoma.
The metagenomic study of a
"stressed" microbial community in groundwater near a former
waste disposal pond site on DOE's Oak Ridge Reservation
(ORR) revealed microbes with an overabundance of genes
involved in DNA recombination and repair and other defense
mechanisms for dealing with contaminants and other
environmental stresses.
The studies, said ORNL researcher
David Watson, are ultimately aimed at developing
biologically based methods for reducing the level of the
contaminants in the groundwater, which at the ORR site
includes nitrates, solvents and heavy metals, including
uranium.
"We are looking to better
understand the evolution of microbes in the groundwater
plume," Watson said. "The microbes that can break down
nitrate into nitrogen can have a long-term benefit toward
attenuating the plume."
Watson added that researchers
particularly want to better understand the genetic makeup of
microbes that can metabolize oxidized forms of uranium into
a form that is only slightly soluble and thus easier to
precipitate and remove from the groundwater environment.
ORNL's Watson was joined in the
study by the University of Oklahoma's Jizhong Zhou and
Christopher Hemme; Joint Genome Institute Director Eddy
Rubin; and a team that included researchers from ORNL's
Environmental Sciences Division, the University of
Oklahoma's Institute for Environmental Genomics, Montana
State University, Michigan State University and Lawrence
Berkeley National Laboratory.
They found that the naturally
occurring populations of microbes in the polluted
groundwater — which consisted of only a few cell types — had
"very simple" genetic structures tuned primarily to
overcoming the stresses presented by the toxic soup, which
has a highly acidic pH level of 3.5.
The accumulation of genes
involved in resistance and responses to stress appears to be
a basic survival strategy that has left the microbes with a
marked loss in metabolic diversity.
The waste ponds, which are now
part of the Oak Ridge Environmental Remediation Sciences
Program Integrated Field Research Center, have been out of
use for decades and were capped in 1983.
The research, recently published
in the on-line ISME (International Society for Microbial
Ecology) Journal, is sponsored by DOE's Office of Science.
ORNL is managed by UT-Battelle
for the U.S. Department of Energy Office of Science.
Source:
http://www.ornl.gov/
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This
newsletter is sponsored by:
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Lunch & Learn : New "Batch
Mixing" Lecture
Jacksonville Beach, FL -- We are
pleased to announce "Batch Mixing" a new class by Eric
Maynard, in the Online Training Center.
Click here for a Free Preview!
http://www.powderandbulk.com/online_training/
In this first session of a
three-part lecture series on mixing and blending
fundamentals, Eric Maynard, Senior Engineering Consultant
with Jenike & Johanson, covers the basics of batch mixing.
"Travel less - Learn more"
Eric discusses batch mixing
processes are described for common industrial applications.
The differences between mixing and blending are presented,
including the three basic mechanisms of mixing.
After discussion of batch mixing
fundamentals, Eric then reviews specific batch mixing
equipment, such as V-blenders, ribbon/paddle mixers and
fluidization blenders. Basic operating features, system
advantages and possible concerns with each mixer are
presented in this lecture.
Information from this session can
effectively help an engineer, formulator or plant operator
with the batch mixing fundamentals required to troubleshoot
mixing difficulties or selection of equipment for a powder
blending application.
Lecture includes downloadable
class notes and a self administered quiz with answer sheet.
The seven-day subscription allows you to watch and review
this video class as many times as you need. All for only
$39, payable via credit card online.
The Online Training Center is a
virtual campus providing quality and targeted online
training to meet the information needs of the bulk materials
handling professional. At the Training Center you can learn
about the latest developments and technology from leading
industry experts - on your own schedule. Take our online
classes 24/7, from anywhere in the world.
This is the first lecture in the
Mixing and Blending Fundamentals Lecture Series, we hope you
enjoy it.
Online Training Center:
http://www.powderandbulk.com/online_training/
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Project to Upgrade Largest WWTP in Australia
 Kansas
City, MO -- Black & Veatch has confirmed that the company
will be part of the Eastern Tertiary Alliance that will
deliver the Tertiary Upgrade of the Eastern Treatment Plant
in Melbourne, Victoria, Australia, the largest activated
sludge plant in the country. This follows the success of
Stage 1 of the project where Black & Veatch was asked to
lead a series of technology trials to determine the
preferred treatment technology to be used.
The alliance also includes
Melbourne Water, owner of the plant; Baulderstone/UGI, a
joint venture of two local construction firms; and KBR, an
international engineering consultant.
The Aus$ 380m upgrade will
greatly improve the quality of treated effluent discharged
into the Bass Strait with resulting benefits for the marine
environment. The upgrade will also open the door to
significantly more recycling opportunities over time and
make the plant one of the most sophisticated large-scale
wastewater treatment facilities in the world.
Black & Veatch were employed by
Melbourne Water in 2008 to lead the technology trials that
were successfully completed in early 2009. These trials
determined that the preferred treatment processes for the
upgrade would be ozone and biological media filtration
coupled with ultraviolet and chlorine disinfection.
The construction phase will
commence soon and is scheduled for completion in 2012.
Source:
http://www.bv.com/
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Onset Announces Conductivity
Data Logger
 Bourne,
MA -- Onset, the world’s leading supplier of data
loggers, today announced the HOBO® Conductivity Logger,
a high-accuracy, easy-to-maintain data logger that
substantially reduces the cost of measuring conductance
and temperature in streams, lakes, and other freshwater
sources.
Ideal for monitoring aquifers
for saltwater intrusion and road and agricultural
runoff, the HOBO Conductivity Logger provides a number
of features that greatly simplify maintenance and
minimize drift-related measurement errors. For example,
it was designed with a non-contact sensor that makes it
less susceptible to drift than loggers that utilize
contact, electrode-based sensors. The logger also
provides open access to the sensor for easy cleaning,
and software-based drift compensation using calibration
points from the start and end of each deployment.
Powerful, intuitive software
Onset’s HOBOware® Pro
software makes it easy to graph and analyze conductivity
data, and offers a number of features that simplify
conductivity monitoring projects. It provides a choice
of methods for easy, accurate conversion of conductivity
data to specific conductance for various water types.
The software also makes it easy to combine data sets
from multiple loggers, and offers one-click data export
to Microsoft Excel and other programs.
Convenient data offload
The HOBO Conductivity Logger
offloads data to a PC via a convenient optical USB
interface, which provides high-speed, reliable data
offload in wet environments. The optical design
eliminates problems associated with failure-prone
mechanical connectors. The logger is also compatible
with Onset’s HOBO Waterproof Shuttle, which provides
easy and reliable data retrieval and transport.
Source:
http://www.onsetcomp.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.
Mr. Hurst needs help finding a
BOD procedure:
I am looking for a method to
determine the BOD on the solids being discharged from a
compactor. The compactor reduces the volume of the
screenings from the headworks of the plant.
This seems difficult at best
to determine an accurate sample, but was wondering if
someone might know something.
Thanks,
Shaun Hurst
Andritz Separation
(Click
here to post a reply)
Help Forum:
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| Water
and Wastewater Plant Directory - Featured Plant
 SEAU
Piatra Neamt WWTF
Neamt, Romania
The SEAU Piatra Neamt
Wastewater Treatment Facility is designed to treat
500l/s of domestic sanitary sewage from the cities
of Piatra Neamt as well as industrial wastewater.
The existing wastewater treatment processes....
(Click
here to read more...)
Click here to add
your plant to our directory:
Water and Wastewater Plants Directory
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| From the Job
Fair: We have a number of job openings on the Job
Fair, here are just a few of them we would like to share
with you. If you know someone in need, please forward
our newsletter to them, so they can check on a job that
might suit them.
Help
Someone to Find a Job - Today!
New Openings:
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For job more listings, and we
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Do you have a position
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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
Jacksonville Beach, FL 32250
Phone: 904-280-4656
Fax: 904-273-1399
Email: jtaylor@waterandwastewater.com
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Newsletter is a 100% opt-in e-mail list of information for
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information you would like to share with our subscribers?
Please submit articles via e-mail, only to: news@waterandwastewater.com |
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::
Microorganisms in Toxic
Groundwater Studied
::
Lunch & Learn : New "Batch
Mixing"
Lecture
::
Project to Upgrade Largest WWTP
in Australia
::
Onset Announces Conductivity
Data Logger
:: 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!
:: 157,000+ visitors in February !
:: Call For Photographs!
:: Subscribe, Unsubscribe
:: Archive Information
:: About Us
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| Hi Everyone,
Happy Easter, we hope you enjoy
your holiday! Read on!
With over 12,000+ 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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Send
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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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 We
Need Your
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Featured
Case History |
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KMS Provides Florida Community Clean Water
Roy Fallon, chief
operator of the wastewater treatment plant at the
Village of Tequesta in Palm Beach County, FL, said
that after the company installed two reverse osmosis
systems back in 2000, it was more than eight years
before the membranes needed to be cleaned.
Naturally, after using a reverse osmosis system for
eight years to desalinate a water supply — and never
cleaning it even once — one might assume that the
build-up of dirt and slime would be more than even a
hazmat team...(more) |
More case histories...
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| Call For
Photographs
This week's
photo is of an Alar Auto-Vac Sludge Dewatering Filter. The
equipment is skid mounted, pre-piped and pre-wired for easy
installation. It is offered both with semi-automatic and
automatic modes of operation. This design works with
virtually any industrial waste such as coolants, cleaners,
and process waters.
Photo courtesy
Alar
Corporation
Send us
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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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