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Water and Waste Water Dot Com Newsletter
"For the water and wastewater treatment professional...."
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Vol. 2, No. 12, June 5, 2000
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Joseph Taylor, Editor, mailto:jtaylor@waterandwastewater.com
Copyright 1999-2000, Water and Waste Water Dot Com
John Yazek, Co-Editor, mailto:jyazek@h2ochem.com
H20Chem.com, http://www.h2ochem.com/
This is a 100% opt-in newsletter with news and information
for the water treatment professional. The Newsletter is
currently sent to 1,207 professionals at the time of this
mailing. Unsubscribe instructions are at the end of this
newsletter.
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The Newsletter
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Our goal is to provide information to improve your business
by using the resources available on the Internet.
Please forward this newsletter to your friends, intact.
Thanks, Joe Taylor
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Contents:
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> Contributors Wanted!
> EPA to Reduce Arsenic in Drinking Water
> Infilco Degremont, Inc. acquires Anderson Water System, Ltd.
> This Week's Top Picks From The Reading Room
> H2OChem.com’s Technical Tip of the Week
> Dissolved Oxygen Measurement in a Wastewater Treatment Plant
> Hot Messages from the Help Forum
> Call For Photographs!
> From the Job Fair
> Subscribe and Unsubscribe Information
> ReferWare
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Contributors Wanted!
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Press releases, show announcements and industry news wanted!
Do you have company news, a new product, new service or other
information you would like to share with our subscribers?
DEADLINE FOR THE NEXT ISSUE IS: June 10, 2000
We give full credit to contributing authors. If so please send
it to:
mailto:news@waterandwastewater.com
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EPA to Reduce Arsenic in Drinking Water
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The U.S. Environmental Protection Agency today took steps to
significantly reduce public health risks from arsenic in the
nation's drinking water. The agency is proposing to reduce
the current arsenic standard from 50 parts per billion (ppb)
to 5 ppb in drinking water. The proposal would provide
additional protection to at least 22.5 million Americans
from cancer and other health problems.
"Our tap water is among the safest in the world, with more
than 90 percent of Americans served by community water systems
receiving water that meets tough federal standards. The
Clinton-Gore Administration has made providing safe drinking
water to all communities a priority, and since 1993, 23
million more Americans receive water that meets tough federal
health standards," EPA Administrator Carol M. Browner said.
"We will continue to take actions to protect public health
by strengthening existing standards when necessary, as we
are doing today."
The current arsenic standard of 50 ppb in drinking water was
set by EPA in 1975, based on a Public Health Service standard
originally set in 1942. In March 1999, the National Academy
of Sciences (NAS) completed a review of updated scientific
data on arsenic and recommended that EPA lower the standard
as soon as possible. Although the NAS did not recommend a
specific numeric level, its recommendation formed the basis
for EPA's proposal today.
All 54,000 community water systems, serving 254 million
people would be subject to the new standard. However, EPA
estimates that only 12 percent of community water systems,
approximately 6,600, would need to take corrective actions
to lower arsenic levels in drinking water to 5 ppb.
Ninety-four percent of these water systems serve fewer
than 10,000 people each.
More Information
The proposed arsenic rule is open for comment for 90 days.
For general information on arsenic in drinking water, contact
the Safe Drinking Water Hotline, at (800) 426-4791, or
visit the EPA Safewater web site at:
http://www.epa.gov/safewater
or the arsenic web site at:
http://www.epa.gov/safewater/arsenic.html.
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Infilco Degremont, Inc. acquires Anderson Water System, Ltd.
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RICHMOND, VA, - Infilco Degremont, Inc. (IDI) announced that
it has acquired Anderson Water Systems, Ltd. (AWS) of Dundas,
Ontario, Canada. The transaction was completed on May 10, 2000,
with ceremonies in the AWS headquarters attended by Vernon
D. Lucy, President of IDI, Howard Sites, Sr. Vice-President,
and Albert A. Pristera, Vice President of IDI's Industrial
Business Unit.
AWS engineers and manufactures custom industrial water
treatment systems, specializing in ion exchange, filtration,
and membrane process technologies. AWS systems serve a variety
of industrial markets - including power generation, petrochemical,
pulp and paper, pharmaceutical, and beverage - that require
process, boiler feed, and/or ultrapure water. Founded in 1952,
AWS is a fully integrated design-production-service firm that
is widely recognized throughout North America as a provider
of high quality industrial water systems. AWS employs 54
engineers and shop personnel and expects turnover in 2000 of
approximately $7 million USD.
Mr. Lucy stated: "The acquisition of AWS presents a significant
opportunity for IDI to better serve the industrial marketplace.
By working closely with Nalco, acquired last year by Suez
Lyonnaise des Eaux, and Nalco Industrial Outsourcing, we will
now be in a position to offer a full line of high quality,
efficient, and cost-effective water and wastewater treatment
solutions which best meet the needs of our valued industrial
customers."
Peter Wheatley, President of AWS, explained that "Acquisition
by IDI, and being a part of the Degremont Group, will allow
Anderson to significantly expand its reach and scope in the
industrial marketplace." IDI's Pristera noted that "There
will
be tremendous synergies as we match IDI's strengths as the
leading designer and supplier of physical/ chemical pretreatment
systems with the established strengths of Anderson in membranes
and ion exchange." Sites added that AWS will operate as the
Anderson Water Systems Division of IDI and remain in its
present facilities in Dundas with its present management and
staff.
Infilco Degremont, Inc., serving the water and wastewater
industry since 1894, is a member of the Degremont Group, the
leading company in water and wastewater treatment worldwide,
which encompasses more than 30 companies in 50 countries.
Degremont, SA, of Rueil-Malmaison, France, is a member of
the Water Division of Suez Lyonnaise des Eaux, which also
contains the Nalco and Lyonnaise des Eaux operations. Suez
Lyonnaise des Eaux is traded on the Paris Stock Exchange.
For more information contact:
Infilco Degremont Inc
P.O. Box 71390
Richmond, VA 23255-1390
Telephone: 804-756-7600
Fax: 804-756-7643
Web site: http://www.infilcodegremont.com/
mailto:schrierj@idi-online.com
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This Week's Top Picks From The Reading Room
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Top picks from the Reading Room this week are:
"Centrifugal
Pumps - Second Edition"
by Igor J. Karassik, Terry McGuire, J. T. McGuire, L. Karassik
Hardcover - 520 pages 2nd edition (November 1997)
"Water
Treatment Plant Design"
by American Society of Civil Engineers, AWWA
Hardcover - 806 pages 3rd edition (October 1997)
"Anaerobic
Sewage Treatment: A Practical Guide for Regions With
a Hot Climate"
by Adrianus C. Van Haandel, Gatze Lettinga
Paperback - 236 pages (January 1995)
We thank you for your continued support of the Reading Room.
Do you need a book? Can you suggest a book you love, that we
should have in the Reading Room? Let me know and we will
try to include it!
You can visit the Reading Room and view the selections we
have made for you at:
http://www.waterandwastewater.com/www_services/readingroom.htm
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H2OChem.com’s Technical Tip of the Week
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CLARIFICATION TROUBLE-SHOOTING
This week's technical tip provides trouble-shooting ideas
regarding water clarification.
To go the entire tip click below:
http://h2ochem.com/tips/default.asp#tip
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Dissolved Oxygen Measurement in a Wastewater Treatment Plant
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Guest article by Jim Klauer, GLI International
Breakdown of organic wastes entering a wastewater treatment
plant is accomplished by using a bio mass or blend of beneficial
microscopic organisms, bacteria, and solids. This converts
the non-settleable solids (dissolved and colloidal matter)
into settleable solids, carbon dioxide, water, and energy.
The bio mass must be kept alive by maintaining the proper
concentration of dissolved oxygen throughout the treatment
process.
When not enough dissolved oxygen is present, at least some
of the bio mass will die, and the organic wastes will not be
properly treated. If this happens, the plant may have to
replace the bugs which, in most cases, proves to be very
expensive and time consuming. When too much dissolved
oxygen is present, the treatment plant is over aerating,
and consequently, wasting costly energy.
Some typical applications for measuring and controlling
dissolved oxygen are found in various stages of a wastewater
treatment plant:
Equalization Basin -- The equalization basin provides a
means of controlling the loading of the treatment process
due to varying plant loads caused by erratic industrial
discharges, storm water, diurnal variations, etc. It is
important to monitor the dissolved oxygen content in the
equalization basin stage to ensure that the incoming waste
is not excessively loading the treatment plant.
This measurement information provides the plant operators
with a "starting point" for their process control.
Aeration Basin -- Aeration is a basic requirement in the
secondary treatment of wastewater. Aeration ensures that
proper sludge quality and bio mass growth conditions exist.
The dissolved oxygen added in the aeration basin, through
the aeration process, provides the primary life sustaining
element for the activated sludge microbes.
Aerobic/Anaerobic Digester -- Most wastewater treatment
plants have sludge handling facilities that use an aerobic
or anaerobic biological process to treat the sludge,
rendering it harmless. When using an aerobic digester the
operator wants to ensure the presence of oxygen, similar
to monitoring in the aeration basin. When using an anaerobic
digester the operator wants to ensure the presence of
nitrogen, which is directly correlated to the lack of
oxygen.
Final Effluent -- When plant effluent is discharged into
a lake or river, its dissolved oxygen level must be
maintained to sustain the aquatic life near the discharge
point. Also, measuring dissolved oxygen at this point
ensures local permit compliance for the plant discharge.
SUMMARY
Monitoring dissolved oxygen is an important part of the
activated sludge process. It assists in ensuring that
there is sufficient dissolved oxygen in the process for
the biological activity to take place, and helps to
optimize energy usage through controlled air addition.
In some cases, aeration accounts for between 2% and 3%
of their annual energy costs.
Maintaining a proper level of dissolved oxygen can only
be accomplished by using an on-line instrument that will
accurately and continuously measure the dissolved oxygen
concentration at the various stages throughout the
treatment process.
This is one of several documents pertaining to dissolved
oxygen measurement in wastewater treatment. To obtain
other Application Notes on this subject, consult GLI
International, Inc. http://www.gliint.com/
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Hot Messages from the Help Forum
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People post their requests for help and offer their suggestions
to others in our open forum.
Ms. Woods wants help with red alga:
We are currently experiencing huge growth by what I believe to
be Hildenbrandia (crustose red alga) in a chemical processing
treatment plant.
I would be grateful for information on Hildenbrandia- a macroalgae.
The plant is a chemical plant in Ireland that has pH balancing
tanks, balancing tanks and aeration tanks each of differing pH.
Basically the pH ranges from extremely alkaine to extremely
acidic in nature depending on the tank.
There has been good weather here in recent weeks- 20 degrees C
and sunny. Around the start of this good weather spell large
quantities of algae has been found growing in all of the tanks.
Currently personnel are literally using picket forks to lift
out the algae growth in the tanks.
Is there anything that we can change regarding process conditions
to stop the growth and ensure no future algal blooms occur?
I would be most grateful of any response.
Thanks in advance,
Zita Woods
mailto:zita.woods@jeil.ie
Mr. Basol wants help with pumping saline water:
I have 4 wells, generating saline water. The total water is
pumped to another well for storage. The pump's injector has a
high corrosion and scale build ups because of the water. What
is the best way to treat the water while pumping? Is it an
effective way to use Magnetic water treatment?
Thanks,
Yenal Basol
Tanksan Machinery & Engineering
Turkey
Tel:+90.216.4640816
Fax:+90.216.4640817
mailto:tanksan@superonline.com
The Help Forum is open for everyone to use. Share your
expertise with others, you can find these & other messages at:
http://www.waterandwastewater.com/cgi-bin/yabb/YaBB.pl
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Call For Photographs!
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We would love to have your photo of a water treatment process,
new plant or equipment "action shot" for our home page.
If you have a favorite photograph of water treatment at its
best, please e-mail us a jpeg or gif of the photo with a
description of what is in the photo for our home page.
Full credit and the description of the photo will be given.
Photographs are be changed every two weeks to give everyone
a chance to be included.
Send your photograph and description to,
mailto:news@waterandwastewater.com
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From the Job Fair
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No new positions posted this past week.
The Job Fair is a free service of Water and Waste Water Dot 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:
http://www.waterandwastewater.com/jobs_toc.htm
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Thank you, Joe Taylor
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Water and Waste Water Dot Com Newsletter
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http://www.waterandwastewater.com/
Joseph Taylor, Editor
3948 South Third Street, No. 121
Jacksonville Beach, FL 32250
Phone: 904-280-4656, Fax: 904-273-1399
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