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NSF Standard Accepts New S.S. in
Drinking Water
 Ann
Arbor, MI -- NSF International announced today that NSF/ANSI
Standard 61: Drinking water system components – Health
effects now allows additional types of stainless steel as
acceptable materials for use in the manufacturing of
drinking water equipment.
“The incorporation of these
stainless steel grades allows drinking water treatment and
distribution equipment manufacturers greater latitude in
selecting stainless materials for products that are
certified to NSF/ANSI Standard 61,” according to Dave
Purkiss, general manager of NSF’s Drinking Water Treatment
and Distribution Systems Program. According to Purkiss, the
incorporation of these additional grades into the standard
will save equipment manufacturers time and expense in
getting their products certified to NSF 61 while continuing
NSF’s ongoing commitment to protecting the public.
NSF/ANSI Standard 61 is the
American National Standard that ensures pipes, tubes,
storage tanks and other products that come in contact with
drinking water do not contribute levels of contaminants that
could cause serious health problems. Forty-five U.S. states
and two Canadian provinces require drinking water system
components to comply with NSF/ANSI Standard 61 requirements.
The NSF/ANSI Standard verifies
that stainless steels are highly resistant to leaching of
contaminates into potable water. Duplex stainless steel
grades 2205, 2304, 2101 and 2003 have been incorporated into
the standard. These are in addition to types 304, 304L, 316
and 316L, which have previously been accepted under NSF/ANSI
Standard 61.
To verify the acceptability of
stainless steel, NSF tested randomly selected samples from
stainless steel manufacturers. The samples underwent an
aggressive three-week exposure period according to the
requirements of NSF/ANSI Standard 61. Collected water
samples were analyzed for a wide range of contaminants
including lead, arsenic and chromium.
The modification of the standard
was approved by the NSF Joint Committee on Drinking Water
Additives, which oversees NSF/ANSI Standard 61, and the NSF
Council of Public Health Consultants, an independent
advisory group of professional and regulatory officials who
review all NSF standards to ensure they provide public
health protection. The additional section can be found in
Annex C of NSF/ANSI Standard 61: 2005.
“The stainless steel industry
has responded to the requirements of the water product
manufacturers who needed a larger selection of stainless
steel grades that were acceptable under NSF 61. This allows
the industry a greater selection of materials that can be
used in NSF 61 Certified products without further testing,”
said John Grocki, treasurer of SPLASH (Stop Pipe Leaks, Ask
for Stainless Help), Inc.
If you would like a copy of
Standard 61, please contact Rich Martin at 734-769-5346 or
martin@nsf.org. If
you have questions regarding the new materials section,
please contact Dave Purkiss at 734-827-6855 or
purkiss@nsf.org
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This
newsletter is sponsored by:
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EPA Recommends Interim Approval
of LDO Method
 Loveland,
CO -- The U.S. Environmental Protection Agency (EPA) has
recommended to each of its EPA Regions the use of ASTM
International D888-05 Standard Test Methods for Dissolved
Oxygen in Water, Test Method C (Luminescence-based Sensor
Procedure) for use in measuring DO in wastewater and for use
in measuring DO in methods approved at Title 40 of the Code
of Federal Regulations, for measuring BOD. The recommended
interim approval is to be effective from January 3, 2006 to
the effective date of final rules(s) promulgating the method
in the Federal Register.
Hach’s
new portable HQd plug-and-play meters and LDO® IntelliCAL™
probes offer significant benefits over traditional DO meters
based on galvanic or polarographic sensor technology - No
membranes to replace, no electrolyte solution, and no
electrode polishing required. The new HQd meters offer the
unparalleled versatility to take up to two simultaneous
measurements of pH, conductivity and LDO® with a single
meter. It’s the first instrument for field and lab use that
does not require you to predetermine parameters - buy any
probes you need now, and add more later!
Hach’s
LDO Process Probe offers similar features for on-line
monitoring applications, allowing continuous operation with
no membranes to replace and minimal maintenance.
For
more information, contact:
Hach Company
P.O, Box 389
Loveland, Colorado, 80539
Tel.: 800.227.4224
Fax: 970.669.2932
Email: orders@hach.com
Online:
www.hach.com/epaldo
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Industry's Largest Mobile Water
Filtration System
Erlangen, Germany -- The Siemens Industrial Solutions and
Services Group (I&S) announced today that it has completed,
commissioned and deployed the largest mobile water
filtration system in the industry. The Horizontal Filtration
Trailer, or HFT, is a unique, high-capacity trailer-mounted
system designed to provide temporary water treatment in a
variety of industrial and municipal applications.
With a
total surface area of 242 square feet, the HFT has the
highest capacity flow rate of any single trailer on the
market today. It provides high-quality effluent at flow
rates of up to 1,600 gallons per minute (GPM) for general
filtration. For pre-treating reverse osmosis feedwater, the
HFT can produce flows up to 1,200 GPM. The system can be
loaded with filter media, carbon, or specialized resin,
depending on the application and the customer's specific
requirements.
"These
units complement our existing fleet of mobile clarification
systems," says Bill Mertes, mobile and on-site services
general manager, "allowing us the unique ability to clarify
and filter 1.0 to 1.5 million gallons per day of surface
water for industries or municipalities."
The
first installation of an HFT was for potable drinking water,
providing emergency water flow for an Arizona town of 19,000
where the wells had failed and nearby municipalities could
not meet the demand.
"We
also see great promise for HFT in applications where
high-flow reverse osmosis systems require pretreatment to
prevent membrane fouling, reduced membrane life and
inconsistent flow or water quality," says Mertes. "In fact,
we see these opportunities routinely in the power, refining,
chemical production, pulp and paper and primary metals
industries."
Siemens Water Technologies provides mobile systems and
reliable service for: temporary, emergency or long-term
water treatment; pilot plant operations on various water
streams; treatment for seasonal peaks or scheduled
maintenance; pre-treatment and deionization without on-site
regeneration; and on-site services including operations.
Mobile clarification, filtration, pretreatment, reverse
osmosis and demineralization are all part of Siemens Water
Technologies' overall mobile and on-site service
capabilities.
For
more information visit:
www.usfilter.com
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New Storm Water Management Solution
 Findlay,
OH -- Hancor offers a new storm water
retention/detention chamber for engineers and
contractors. LandSaver is specially engineered to meet
the demands of subsurface storm water management
applications.
The structure’s design offers
versatility through different design options and can be
used in different applications. LandSaver’s open bottom
design can retain storm water and then allow it to
infiltrate slowly into the soil, assisting in recharging
the groundwater. The chamber can also be used for
detention to relieve peak flows through an outlet
control structure.
The chamber technology can
help reduce system costs and assist in achieving the
most efficient land use possible. “Hancor’s LandSaver
does what its name implies – it helps maximize available
land for more productive uses,” says Bill Altermatt,
Vice President of Sales & Marketing at Hancor.
“LandSaver is one more solution from Hancor that
effectively manages storm water runoff.”
LandSaver provides effective
and long-lasting subsurface storage for commercial,
industrial, recreational and residential developments.
Its lightweight construction makes it easy to install.
Its secure, overlapping joints provide a dependable
connection while its sidewall openings and open bottom
reduce the need for expensive connections. Plus
LandSaver’s large storage volume per square foot offers
enhanced site optimization.
Hancor is a solutions
provider. One of the nation’s largest suppliers of storm
water management systems, Hancor manufactures a wide
variety of plastic drainage products for the commercial,
residential, construction and agricultural markets.
Hancor was founded in 1887 in Findlay, Ohio and operates
manufacturing facilities and service centers across the
country.
For more information, visit
the Hancor website at
www.hancor.com, or call 1-888-FOR PIPE (367-7473). |
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Water and Wastewater Blog
Don
Dunnington, Moderator |
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Story Behind the Story:
New Orleans Cleanup Article Written by Baghdad
Communications Specialist |
| "Curious as
to how someone in faraway Baghdad came to cover
a New Orleans cleanup story, I sent her an
email. She replied immediately,,." |
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"Infrastructure" Reveals and Celebrates the Often
Unnoticed Engineered Environment |
"Brian Hayes
brings to public attention the essential
underpinnings of the
modern world. Like the air we breathe, and the
water we drink,,." |
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Why Do I Do This Web Site? |
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"We are going
into our 8th year now, over 250 newsletters
published, 1,000 articles in the News Center,
over 3,400 posts on the Help Forum, it just
keeps adding up. I think to myself, 'Does this
do any good for anyone?'." |
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..enter the Water and Wastewater Blog |
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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. Kendall needs help with
diffuser failures:
I have a couple of SBR plants
fitted with rubber membrane diffusers that have suffered
premature failures. I'd like to hear from other people with
similar experiences.
Plant "A"
The tube type rubber membranes seem to have shrunk in
length. They are 4 years old. The sewage to the plant is
typical domestic strength (BOD 250, SS 280, pH 7, TN 60)
with very little industrial waste in the catchment. It is a
two basin SBR and it seems the membranes in one basin have
failed. We suspect someone dumped something in the catchment
and it fed to one basin only.
Plant "B"
Same sort of sewage as plant "A". Failure of diffusers
occurred after about 12 months operation. These have split
along their length. The plant receives winery waste. I
suspect that alcohol or cleaning agents in the waste may
have attacked the rubber.
We are going to change to a
different type of material in the membranes.
(Click
here to post a reply)
Regards,
Geoff Kendall
Water Corporation of WA
fritz_tc@westnet.com.au
Mr. Raber wants to know about LDO sensors:
Has anyone any experience
with Hach's new LDO sensors for measuring dissolved oxygen?
(Click
here to post a reply)
Thanks,
Rich Raber
Dom Gen
rar@usa.com
Help Forum:
Share your
expertise with others in our
Help
Forum. |
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| Featured Plant
: Chagrin Falls
Wastewater Treatment Fac.
 Chagrin
Falls, Ohio, USA
The Bar Screen is
utilized for removal of heavy debris that could
cause damage to pumps and clog pipes. This includes
rags, sticks, rocks and large chunks of grease...
(Click
here to read more...)
Profile your plant in the Water & Wastewater Plants Directory.
Add
your plant in the
Directory! |
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| From the Job
Fair : Eastern Regional
Sales Manager Wanted
Responsibilities:
Professional career opportunity to Implement and assist in
the development of sales and marketing strategies working
with Representatives to meet goals and objectives for the
Eastern Region.
Experience: 5 + years working
with Representatives and Consulting Engineers in the
wastewater industry.
Require: Wastewater,
Biological/Process background. Air Travel 35-50%.
Base + Commission + benefits.
Aeration is located in Minnesota. We are willing to relocate
or office out of your home.
Contact:
Ms. Marlene Miller
Aeration Industries Int'l., Inc.
4100 Peavey Road
Chaska, MN 55318
Email:
marlene.miller@aireo2.com
Telephone: 1.800.328.8287 ext. 725
Fax: 1.952.556.5759
Web:
http://www.aerationindustries.com/
The Job Fair:
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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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::
NSF Standard Accepts New S.S. in
Drinking Water
::
EPA Recommends Interim Approval
of
LDO Method
::
Industry's Largest Mobile Water
Filtration System
::
New Storm Water Management
Solution
:: 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!
:: 114,000+ visitors in January!
:: Call For Photographs!
:: Subscribe, Unsubscribe
:: Archive Information
:: About Us
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| Hi Everyone,
We are very pleased to have over
100,000 visitors in the month of January. Its a new
record for us here at Water and Wastewater.com, Thank you
for your support.
With over 8,200+ 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
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 "One
of the very best engineering texts that I have run across in
my career" |
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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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Need Your
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Do you have an area of expertise in water and wastewater
treatment, have you solved a difficult problem? Share your
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| Call For
Photographs
This week's photo is of
manual cleaning at a water treatment plant in Southern
Iraq. Bechtel's work on behalf of the USAID has enabled
treatment of wastewater for more than 7.5 million people and
restored the ability to provide treated water to meet the
needs of 8.5 million people.
Photo courtesy of
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Corporation.
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