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Olive
pits used to decontaminate Sewage
 Chevy
Chase, MD -- The waste obtained from olive during the oil
extraction process can be used to eliminate heavy metals
from sewage or waste waters of productive activities. Olive
pits, pomace and remains (from olive tree pruning) present
an outstanding capacity to retain the lead present in this
water, which confirms their capacity as biosorbents for
their application in the depuration of effluents on an
industrial scale.
This is one of the main
conclusions of the doctoral thesis “Characterization and
application of residual biomass for the elimination of heavy
metals” carried out by Mª Angeles Martin Lara in the
department of Chemical Engineering of the University of
Granada, which has been supervised by professors Francisco
Hernainz Bermudez de Castro, Gabriel Blazquez Garcia and
Monica Calero de Hoces.
Given the high la toxicity of
heavy metals in solution on the ecosystem, one of the main
problems of this industry at present is that there are not
many metabolisation routes by the living beings or of
degradation by the environment, and some of them have a
limited capacity. This recalcitrance, together with an
excessive deposit to the environment, usually of
anthropogenic origin, generates serious environmental
problems that sometimes are difficult to control.
A “clean” alternative
Biotechnological processes have
attracted the attention of the scientific community due to
the variety of detoxification methods of heavy metals. Among
them, according to the UGR researchers, “biosortion
represents a viable alternative technical and economically,
both for its depuration capacity and its economic operation
cost, it has also been considered as a “clean” technology in
the elimination of heavy metals in sewage and waste waters
of productive activities”.
The UGR scientists have studied
the capacity of these three solid residues obtained from
olive oil industry (olive pits, pomace and pruning remains)
to depurate effluents with lead in dissolution, both in
mono-metallic systems (lead only) and in bi-metallic systems
(lead and chromo).
Olive industry produces great
amounts of such sub-products in Andalusia and their costs
are very low or even nothing; sometimes, their management
can become a problem. Their use as biosorbents of heavy
metals, according to the researchers of the UGR, “makes them
a very desirable alternative, as they would have an extra
value before their final elimination”.
Lead retention takes place in a
very fast way with the three biosorbents used. The process
becomes faster when using pruning remains; similar results
have been obtained when using pits and pomace.
The work carried out at the UGR
has also revealed that the three biosorbents analyzed
present a higher affinity for lead than for chromo as the
lead biosortion capacity is significantly higher. When two
heavy metals are present in an environment, the capacity of
biosortion is lower, which could be connected, according to
the researchers, with the interferences produced between
both ions in the points of sortion.
Source:
http://www.ugr.es/
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This
newsletter is sponsored by:
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Trojan Technologies wins 2009
SIWA
 Stockholm,
Sweden -- Trojan Technologies, a Canadian developer and
proponent of large-scale ultraviolet (UV) water disinfection
systems used worldwide, has been named the winner of the
2009 Stockholm Industry Water Award.
Based in London, Ontario, Trojan
Technologies produces open channel and pressurized UV
disinfection systems for industrial applications, municipal
water and wastewater treatment, commercial integration,
residential use, and elimination of environmental
contaminants from wells and other sources of drinking water,
including reused water.
“Trojan’s success has contributed
to a viable competitive industry in the area of ultraviolet
technologies, leading to the development of a full range of
industrial technologies in both specialized and general
applications,” noted the Stockholm Industry Water Award
nominating committee in its citation. “Their work with other
members of the UV industry has advanced world-wide
regulatory acceptance, overcome many limitations of existing
technologies, and provided a new means of protecting public
health and developing new sources of water supply.”
Executives from Trojan
Technologies will formally receive the Stockholm Industry
Water Award at a ceremony during World Water Week in
Stockholm this coming August.
By demonstrating and
communicating the benefits of UV-based water treatment
solutions to government regulators and industry bodies, and
using education to alleviate public concerns over treatment
and re-use of wastewater, Trojan Technologies has led
adoption of the technology around the world. With water
supplies at risk from overuse and contamination in both the
developing and industrial regions of the planet, decision
makers now increasingly select UV technology to ensure the
safety of drinking water.
Ultraviolet light purifies water
by destroying the ability of microorganisms to function and
reproduce. In water treatment applications such as those
pioneered by Trojan Technologies, specialized lamps project
intense UV light into the water, effectively neutralizing
the organic contaminants it contains.
UV water treatment systems are
especially effective at eliminating disease causing agents
in wastewater. They destroy bacteria such as E. coli,
viruses such as those causing hepatitis and polio, and
virtually all water-borne pathogens, including
chlorine-resistant types such as Giardia and
Cryptosporidium. They also eliminate many micro-pollutants
from herbicides and pesticides, a significant issue in
agricultural regions.
UV technology also works more
than 20 times faster than traditional chlorine based
systems, with no environmental impacts from chemical leaks
or any known disinfection byproducts that could be harmful
to health.
By virtue of these combined
advantages, UV treatment presents an especially effective
solution to the interrelated challenges of water quality and
sufficient supply in arid regions. Its proven performance in
eliminating all contaminants has led to public acceptance
and confidence in sophisticated new applications for
wastewater re-use.
In its citation, the Stockholm
Industry Water Award nominating committee highlighted
several recent installations of Trojan systems that
illustrate the potential of UV treatment for wastewater
re-use applications. The most notable of these are
large-scale projects in Orange County, California and South
East Queensland, Australia.
Source:
http://www.trojanuv.com/
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New
Water Loss Control Products from ADS
 Huntsville,
AL -- ADS LLC today introduces a full line of
cost-efficient, advanced water loss control products for
leak detection and flow measurement. These technologically
innovative instruments form an integrated approach to system
monitoring and leakage control for water distribution
networks.
ADS can now offer leak detection
services and products with single point accountability for
project execution. All ADS Water Loss Control Products are
powered by technology from Primayer Ltd. and supported by
the U. S. based ADS Environmental Services® for fast,
responsive, customer service.
“For 113 years, the Pitometer
Group of ADS™ has been providing the finest available
services to conduct water loss control programs,” states
Karl Boone, President of ADS LLC.
“We identified a need in the
industry for improved local product support on advanced
water loss control instrumentation. With our new line of
products, we will provide superior product support to help
customers reduce water loss and increase water revenue.”
The ADS Water Loss Control
Products are easy-to-operate and include the ADS Enigma® for
multi-point and delayed-start correlation, the Eureka
Digital for challenging noise environments, Eureka2R for
routine leak location, Mikron with advanced sound
microphones, an electromagnetic insertion flowmeter, data
logging systems, and more.
The ADS Enigma is a featured
product. This state-of-the-art, multi-point, digital logging
correlation system determines the location of leaks in
buried pipes with real-time, unattended, and delayed-start
options. Noise logging and noise correlation are combined
into one operation to provide improved operational
efficiency and optimum performance for challenging leak
detection and water loss control.
For more information visit:
http://www.adsenv.com/
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Screenmaster CS : Screening
Made Simple
 Livingston,
NJ -- Franklin Miller has introduced the Screenmaster®
CS mechanical bar screen. This unit provides efficient
cleaning of a bar screen rack and removal of solids
from channel installations. The unit makes solids
removal simple with its highly efficient operation. It
employs a front clean/ front return principle, is easy
to install in new or existing channels and at a
75-degree inclination, has a very small footprint.
The design features a simple, continuous rotary motion.
As the rake head passes through the bar slots collecting
debris, it travels up the unit’s dead plate until it
reaches a special scraper supplied with a dash pot for
smooth operation. The screenings then drop out of a
discharge chute. where they can be processed by a
Spiralift SC Screenings conditioner/wash or deposited
into a bin or conveyor.
The Screenmaster is fully constructed in stainless steel
for resistance to corrosion and long life. It
is supplied complete with an S320 Program Controller
which activates on a timed basis or when a high level is
indicated by a supplied level sensor. The unit is driven
by a ¾ HP-1HP motor and gear drive and is custom built
for channel width and lift height.
For more information contact:
Franklin Miller, Inc.
60 Okner Pkwy
Livingston, NJ 07039 USA
Telephone: 973-535-9200
Fax: 973-535-6269
Web site:
http://www.franklinmiller.com/
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Featured Videos
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your videos with everyone - promote your plant, your
product and your company, free.
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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. Heuvel needs help with
dairy plant wastewater:
I have a question on when to
take parts of your plant out of service for better
treatment.
Our plant was designed for
3.06 MGD with a dairy 30 years ago, normal flow then was
about 1.8 MGD, now our flow has dropped to under 1 MGD.
We have 3 primary clarifiers,
2 aeration tanks and 2 final clarifiers. We are an activated
sludge plant with anaerobic digestion.
Any help would be
appreciated. (Click
here to post a reply)
Thanks,
Terry Heuvel
Merrill WWTF
terry.vandenheuvel@ci.merrill.wi.us
Help Forum:
Share your
expertise with others in our
Help
Forum. |
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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 this week:
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Operators Position Available - FL
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
© 1999-2009 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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you have company news, a new product, new service or other
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Please submit articles via e-mail, only to: news@waterandwastewater.com |
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::
Olive pits used to decontaminate
Sewage
::
Trojan Technologies wins SIWA
::
New Water Loss Control Products
from ADS
::
Screenmaster CS : Screening
Made Simple
:: The News Center : More headlines
:: The Water and Wastewater Blog
:: Video Center
:: Help Forum
::
Water and Wastewater Plant
Directory : Featured Plant
:: The Job Fair
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:: Ask Tom! Column!
:: 182,000+ visitors in May !
:: Call For Photographs!
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:: Archive Information
:: About Us
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| Hi Everyone, 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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Send
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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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 We
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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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Featured
Case History |
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Efficient, Multi-Element,
Self-Cleaning Strainers
For municipal water
treatment, it is critical that suspended solids are
continuously and cost effectively removed from
wastewater. For the Lemay Treatment Plant in St.
Louis, this means utilizing the appropriate
automatic, self-cleaning strainer technology as part
of its process to remove contaminants and debris
from wastewater before returning it to the nearby
Mississippi River....(more) |
More case histories...
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| Call For
Photographs
This week's photo is an
installation of a Franklin Miller Taskmaster twin shaft
grinder reduces solids at plant headworks to help protect
pumps and process equipment from ragging and plugging.
Submitted by Bill Galanty of
Franklin Miller
Send us
your photos: We would love to have your photo of
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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