Fort Washington, Pa. –August 18, 2003 – Polymers have long been used in the treatment of water and wastewater to attract, adsorb and ultimately remove suspended particles. Since polymer handling is critical to the process, the polymers must be carefully mixed and fed into the treatment process. Now, Severn Trent Services introduces the industry’s most advanced liquid polymer blending unit, enhanced with a programmable logic micro-controller, the Semblex.Polymax Series L.

The compact Semblex system introduces and activates the polymer solution using a two-stage tapered mixing system, avoiding damage that can be caused by high-energy, high-sheer devices. Employing a thin film blending technology, the Semblex system also features clear in-line mixing elements to provide visual confirmation of the mixing/blending process.

Equipped with a programmable logic micro-controller, the new system features standard pre- and post- auto-flush cycles; a built in LCD operator interface screen; and on-board diagnostics. The standard autoflush eliminates clogging and reduces maintenance costs. A built-in LCD screen and on-board diagnostics assist with set-up, maintenance, and troubleshooting the system. Additional features such as selectable latching or auto-reset alarms and adjustable time delays on alarm outputs enable the Semblex Polymax Series L to be used in a variety of conditions.

Severn Trent has designed this state-of-the-art liquid feed system to reduce system costs and enhance operation. “Polymers can represent a significant part of a treatment plant’s chemical cost,” stated Greg Kriebel, Semblex Product Manager, Severn Trent Services. “Properly mixed and activated polymers can improve process performance and reduce chemical costs.”

Severn Trent Services ( www.severntrentservices.com ), 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 and filtration technologies, pipeline analysis, rehabilitation and repair services, contract operating services, and state-of-the-art residential metering products. The company is part of the Severn Trent Group (London: SVT.L), Birmingham, England, an international environmental services leader.

PALM DESERT, Calif., -- USFilter is seeking applicants for its annual $25,000 research award for innovative work in biosolids management. The North American Technology Center (NATC) of Veolia Water, USFilter’s parent company, established the award in 2001.

According to Dr. Mohammad M. Abu-Orf, biosolids R&D director of the NATC, award applications are competitively judged on originality and relevance to the existing needs in biosolids management. The research may also focus on state-of-the-art treatment processes, addressing current operational issues within biosolids management systems.

Abu-Orf explains that the funding is intended as seed money for examining innovative or emerging technologies in biosolids management. The selection committee consists of members of the NATC, USFilter biosolids experts, and independent acknowledged scholars in the environmental field.

Applicants must be from the United States or Canada, and the application deadline for this year’s award is Sept. 17. The selected individual or team will conduct the research project for approximately one year, commencing in the fall of each year. USFilter and Veolia Water employees are ineligible for the grant.

For more information about the award, contact:
Dr. Abu-Orf
USFilter's North American Technology Center
1901 W. Garden Rd.
Vineland, NJ 08360
Telephone: 856-507-4158
Email: abu-orfm@usfilter.com

The North American Technology Center, a consortium of USFilter water experts, drives and fosters applied research and technology development in North America – bringing an unmatched water expertise to USFilter’s municipal and industrial clients.

United States Filter Corporation, a Veolia Environnement company, is North America’s leading water company providing comprehensive water and wastewater systems and services to commercial, industrial, municipal and residential customers. Visit the company’s web sites at www.usfilter.com

Livingston, NJ -- The Taskmaster Titan Duplex joins the Taskmaster Titan family of innovative, high flow twin shaft channel grinders. These grinders have a unique design that provides a next generation of improved performance.

Unlike conventional twin shaft grinders that have two small diameter cutting stacks, one cutter stack of the Titan intermeshes with a second one that has a much larger diameter and many more cutting teeth. The result is a unit with a massive wall of cutters and a larger throat opening of active cutting than any prior grinder.

Benefits include superior processing of larger objects, a high flow intrinsically open design, the elimination of any path for solids to bypass cutting and greatly increased cutter life. Like all Taskmaster grinders, the Titan and Titan Duplex employ unique cutter cartridge technology for unmatched unit strength and low maintenance.

Each Taskmaster Titan produces a finely ground output particle for excellent protection of pumps and other downstream equipment from jamming and plugging. These powerful channel grinders make short work of reducing sneakers, wood, rags, paper, mops and bottles while allowing liquids to freely pass through in high volume.

The Taskmaster Titan Grinder is provided with high quality tungsten carbide mechanical seals housed in a hardened stainless steel cartridge assembly for extremely reliable seal reliability. Additionally, the unit housings are uniquely protected by the use of replaceable wear elements.

The Taskmaster Titan Duplex employs two sets of counter-rotating shafts for flow rates up to 16 mgd (710 l/s) and wider channel widths starting at 35" (889mm) and wider.

For more information contact:
Franklin Miller, Inc.
60 Okner Pkwy
Livingston, NJ 07039
Tel. (973) 535-9200
Fax (973) 535-6269
Email: info@franklinmiller.com
Web site: http://www.franklinmiller.com/

DENVER, CO -- The American Water Works Association (AWWA), the authoritative resource on safe drinking water, today announced a new column titled “Market Outlook,” premiering in the August 2003 issue of the Journal AWWA.

Established in 1881, AWWA is the oldest and largest nonprofit scientific and educational organization dedicated to safe drinking water in North America. AWWA has over 57,000 members worldwide and its 4,500 utility members serve 80 percent of America's population. Journal AWWA, published for the past 89 years, is the flagship of the American Water Works Association periodicals. Both a professional and a scholarly journal, it has earned the reputation of being the most respected publication in the water community.

The new bi-monthly “Market Outlook” column will provide detailed outlooks and forecasts on multiple water issues including drought, regulations, wastewater, privatization, and the cost of water. “Market Outlook” is authored by Steve Maxwell, managing director of an environmental consulting group in Boulder, Colorado. Maxwell is also the editor and founder of The Environmental Benchmarker and Strategist, a comprehensive source of competitive and financial data for the environmental industry.

“Our diverse readership has a common interest in having access to forecasts and outlooks for the issues affecting them in their various positions,” said Marcia Lacey, Journal AWWA Editor. “This new column provides the water profession with the insight necessary to plan for the future.”

Complete coverage of the August Journal AWWA including feature articles, executive summaries, departments, and expanded coverage can be found online at http://www.awwa.org/communications/journal/

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

Matt wants to reuse wastewater from chicken processing:

We have an application where a client wishes to reuse wastewater from a chicken processing plant.  The plant kills, defeathers, scalds, and segments chickens at a rate of about 60,000 per day.  The wastewater currently goes to a DAF with  to remove FOG and other insolubles.  From the DAF it then goes to an aerated biological process and then to a second DAF with polymer addition for sludge removal.

Volume is approx 500,000 liters per day.  The waste water is currently spray irrigated.

Final effluent quality is
BOD 50, TDS 852, turbidity 53, COD 260, NO3 39.8, TKN 97.1, NH3 48.2, TOC 110, pH 6.91, EColi 3.6 E6, Faecal coliforms 3.9 E6.

We are considering microfiltration however feel that the residual ammonia is too high to achieve any permeate disinfection and that the permeate would not be stable. (Chlorine dioxide is currently used on site for disinfection of other raw water streams.)  It is proposed that the treated waste water be stored in a 1Ml tank and be used for wash down of particularly the live bird area.  The wash water would then find its way back to the effluent plant.  We have been through the trials and tribulations of running a pilot membrane plant on secondary treated waste water before (not chicken waste) and are therfore mindful of the cleaning, fouling problems that can be inherent.
 
I would be interested to hear of other experience with this approach or other approaches to achieving water recycle, reuse and/or water reduction measures for this type of plant.
(Click here to post a reply)

Matt
Aqueous Solutions - Australia
matt@aqueoussolutions.com.au

Mr. Keena needs help de-nitrification:

Recently, I witnessed a discussion as to the merits of using Methanol or Molasses as the preferred material to be added as the additional Carbon source to assist in a de-nitrification process.

Molasses appears to have lost the argument because it was claimed to increase the COD of the discharge whereas Methanol seems to be absolved from this problem.  (Click here to post a reply)

Any comments?
Tom Keenan
info@nesa.ie

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

Water/Wastewater PE - Florida

I'm on the search for Civil Engineers with their Florida PE licensure. Our client has 20 years of Florida experience, a stabile client base and offers a full range of engineering, surveying, planning, landscape architecture, construction management, and design/build services to their clients.

The available position is a Water/Wastewater PE for DeLand, FL. 

Requirements:
*  B.S.C.E.  
*  Florida Licensed Professional Engineer, or the ability to get a license within 12 months  
*  Previous commercial experience with land/site development, utilities, drainage, water, wastewater, transportation, quality control, or project management.  
*  These positions are more design based (versus Project Management)
*  No relocation offered - candidates must reside in surrounding areas and must be US Citizens or Greencard holders.

The position is a 3 month contract to hire opportunity.  Please forward your resume for immediate consideration to shyla.frusciante@hhgroup.com and reference job number 121333.

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This week's photo is of the restoration of City of Eastpoint Georgia's existing water treatment plant basins.  Precision Concrete installed a cement-based, overlay material to the badly eroded surfaces in approximately 10 basins.  Precision Concrete has worked hard to gain the reputation as the Southeast's premier concrete contractor.

Submitted by Bob Baumeister of Precision Concrete Construction, Inc.

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