Langley, BC -- The City of Port Alberni operates a wastewater treatment lagoon treating average flows of ~45,000 m3/d of municipal and industrial effluent. The cities nine existing surface aerators are old and unreliable and spare parts are often no longer available. Whenever a unit breaks down, or is pulled for service, parts need to be manufactured adding significant maintenance costs and down time.

During the summer the towns fish processing and packaging plant ramps up production. The effluent from this fish processing operation effectively doubles the biological loading on the city’s wastewater treatment lagoon. The existing aeration equipment cannot keep up with the increased loading and effluent DO figures drop below permitted values. The City contacted MGD Process Technology Inc. to arrange an on-site trial of the Turborator to determine if the Turborator would provide an acceptable and cost effective alternative to traditional surface aerators.

MGD Process Technology Inc. supplied one, twenty horsepower unit, on a floating platform for a two month trial. The unit was customized to compensate for the shallow depth of the lagoon. The standard ten foot shaft was replaced with a six foot shaft. This customized shaft placed the impeller only three feet below the surface instead of the standard seven feet. The shallower installation of the shaft meant that the area of influence for mixing was reduced, and that air pulled down the hollow shaft would rise to the surface faster – reducing the amount of time for reactions to take place.

The unit was delivered and installed and the trial was conducted. Overall the installation of the trial unit had a positive effect with daily DO figures stabilizing and averaging 18% higher than the one month period prior to the trial.

• The average DO reading for the month prior to installation of the trial unit was 2.46 Mg/l. with 390 HP of installed aeration
• The average DO reading for the trial period was 2.89 Mg/l an overall increase of 18% with 410 HP of installed aeration an increase in energy demand of 5%
• In the one month prior to the installation of the trial unit 16 of 30 (56%) of the daily DO readings fell below 2.00 Mg/l and readings fluctuated wildly from day to day.
• In contrast, during the Turborator trial DO figures stabilized with only 7 of 56 (12.5%) of the daily DO readings falling below 2.00Mg/l

The Turborator is ideal for existing wastewater treatment plants that require a reliable and efficient source of additional oxygen and mixing. Our units are produced in a range of sizes from 5 – 25 horsepower and can be customized to suit the particular installation and application. Limited product trials and equipment leases are available.

For more information contact:
MGD Process Technology Inc.
Web site:  http://www.mgdprocess.com/

LUM in Strategic Partnership with Eppendorf

Berlin, Germany -- LUM GmbH, Berlin, world-wide leading producer of analytical devices for direct and rapid stability analysis and particle characterization of dispersions announces the begin of a long-term cooperation with Eppendorf AG, Hamburg. Eppendorf is the world-wide leading producer of systems for biotechnology and produces high-end laboratory centrifuges.

The exclusive agreement enables LUM to use the latest centrifuge technology for the innovative product lines LUMiSizer and LUMiFuge and provides the customers with solutions for future challenges.

"This cooperation permits us the consistent expansion of our product portfolio of dispersion and stability analyzers according to the increasing demands from our international customers", states Prof. Lerche, Managing Director of LUM GmbH. "In addition to the classic devices, completely based on our own development, we meet an increasing demand for the advanced LUMiFuges and the LUMiSizers since their market release in the end of 2004. For the first time our customers are able to analyze at low temperature and with very high accelerations, covering also new applications in the field of nano dispersions. Due to the cooperation with Eppendorf we are now able to provide solutions for particle characterization with the LUMiSizer, too."

This analytical centrifuge features the complete dispersion laboratory in one device, with the determination of stability, particle size and consolidation of concentrated dispersions, on the basis of LUMґs patented STEP-technology.

About LUM GmbH

LUM GmbH is an independent, technology based German company. The company was founded in 1994 and is located in the Science and Media City Berlin-Adlershof. Successful product development is based on decades of scientific experiences in the fields of fluid mechanics, rheology and colloid chemistry. The products from LUM GmbH solve problems of stability and separation analysis as well as allow particle characterization of (nano- and microscaled) diluted and concentrated suspensions and emulsions. LUM GmbH is represented world-wide in more than 20 countries directly or through distributors.

For more information contact:
Dr. Dietmar Lerche
LUM GmbH
Rudower Chaussee 29
12489 Berlin, Germany
Tel: +49 30 6780 6030
Fax: +49 30-6780 6058
Email: sales@lum-gmbh.de
Web site: www.lum-gmbh.com

FORT WASHINGTON, PA -- Wastewater treatment facilities in Syracuse and LaGrange, Indiana will be awarded the Municipal Safety Award by the Indiana Water Environment Association (IWEA) at the organization’s annual conference in November. The Syracuse Wastewater Treatment Plant (WWTP) and the LaGrange WWTP, both operated and maintained by Severn Trent Services, earned the rare distinction of achieving perfect scores of 100 in the annual safety assessment conducted by the IWEA.

Both facilities also will receive Excellence in Laboratory awards, which recognize outstanding achievement in the implementation of laboratory technique and administration. While both plants are class II facilities based upon their size, they were graded at more stringent class IV levels.

The Syracuse WWTP is owned by the Town of Syracuse; the LaGrange facility is owned by the Town of LaGrange.

A perfect score of 100 on the safety assessment has only been achieved once previously. The Syracuse WWTP, under the management of Severn Trent Services, earned that distinction in 2004. The IWEA safety program is designed to give recognition to all plants which grade high in merit points and which sustain a minimum of lost-time accidents.

“Our work in Indiana shows the value Severn Trent Services brings to municipal wastewater treatment authorities,” said Dana Kaas, vice president of contract operations for the company. “Hundreds of cities and industrial clients rely on Severn Trent Services to protect their utility investment and ensure regulatory compliance. Our professional operations personnel help improve process control while reducing administrative and operational costs.”

About Severn Trent Services

Severn Trent Services, based in Fort Washington, Pa., is a leading supplier of water and wastewater treatment solutions. The company’s broad range of products and services is concentrated around disinfection, instrumentation, and filtration technologies, pipeline analysis, rehabilitation and repair services, contract operating services and state-of-the-art residential metering products and services.

Web site: www.severntrentservices.com

. Emerson's First Liquid Point Level Switches Wastewater treatment facilities in Syracuse and LaGrange, Indiana will be awarded the Municipal Safety Award by the IWEA.

Blue Water selected as Capstone Design Project
An industrial design project submitted to the University of Idaho, College of Engineering by Blue Water Technologies, Inc. has been selected as a Senior Capstone Design Project.
 

New : Watson-Marlow Bredel’s 323 Peristaltic Pump Watson-Marlow Bredel’s 323 pump is a low maintenance, low-cost pump that outperforms traditional “throw-away” solenoid diaphragm pumps.

Click here to visit the News Center...

People post their requests for help and offer their suggestions to others in our open forum.

Mr. Lumb wants help with chicken effluent coagulation:

I am working with an interesting effluent at the moment, and would like to share my experience as well as welcome any advice.

The waters arise from the cooking of chickens, followed by coating with flavors, color and sometimes batters. The effluent is fatty and is treated by coagulation and DAF separation. However, coagulation will only occur when the pH is 4 or below, neutral pH does not allow flocs to form. Aluminum salts are better than iron which is surprising, given that they are amphoteric and are more soluble in acid conditions.

My theory is that the effluent contains a large amount of collagen (protein) which is soluble in neutral conditions and is denatured under acid, causing it to be insoluble, hence the flocculation.
(Click here to post a reply)

Any advice welcomed,
Tony Lumb
Oasis Environmental
tony@oasisenviro.co.uk

Mr. Chirlikar wants to know about H2S removal:

What is the effective method for removal of H2S from waste water. The influent concentration is 7 ppm and expected outlet concentration < 0.1 ppm.

Does this get removed in extended aeration?
(Click here to post a reply)

Thanks,
Satish Chirlikar
Metito
satish.chirlikar@metito.com

Help Forum:  Share your expertise with others in our Help Forum.

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Wastewater Engineers - Concord, MA

Earth Tech, Inc., a leading global provider of consulting, engineering and construction services, is seeking the following positions to work out of our Concord, MA office.

Junior Wastewater Engineer

Responsibilities include working with project teams on CWMP, sewer needs analysis, Public Involvement Plans, Agency Liaison, and MEPA coordination. BS with 2+ years experience.

Senior Wastewater Engineer

Project Engineer needed for preparation of reports, designs, & construction services, will also mentor junior staff. PE & BS required with 10 years of experience in wastewater collection & treatment systems.

Apply online at www.earthtech.com or fax resume to 978-318-4713.

Contact Information:
Cheryl VanMolle
Earth Tech, Inc.
196 Baker Avenue
Concord, MA 01742
cheryl.vanmolle@earthtech.com

Equal Opportunity Employer M/F/D/V
Qualified minorities and women are encouraged to apply.

The Job Fair:  A free service of Water and Wastewater.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.

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© 1999-2005 Water and Wastewater.com
Home page:  http://www.waterandwastewater.com

Joseph Taylor, Editor
Water and Wastewater Newsletter
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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

WEFTEC is coming soon, hope to see you in Washington DC!  Need to reduce dissolved oxygen in your lagoon?  Check out this week's article from Midan...read on!

With over 8,000+ 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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Wastewater Collection System Operator Certification Studybook
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This weeks photo is of an open-top Aquastore tank installed at the Coca Cola plant in Cayey, Puerto Rico.  The tank is a part of a six-tank, MBR System for wastewater treatment.  Engineered by Malcolm Pirnie and installed by the local dealer, Florida Aquastore. 

Photo courtesy of Tom Renich of Aquastore.

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