Sludge Solutions
Water & Wastes Digest
September 2007
By Dan Tumis
Sludge blanket level analyzers prove effective in King County, Wash., wastewater treatment plant
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Partnering with Pumps
Water & Wastes Digest
April 2007
By Jim Olson
The city of Rio Rancho maximizes pump performance using heavy-duty winches
Hauling Off a New Solution
Water & Wastes Digest
February 2007
By Rudy Morrison
Small plant realizes advantages of no longer hauling liquid sludge
From Sludge to Forest
Water & Wastes Digest
February 2007
By Sondra Sommer
A wastewater treatment plant discovers how to treat sludge and use it to benefit the community
Blanket of Protection
Water & Wastes Digest
February 2007
By Michael Munninger and Dale Keller
Tonto-Apache Tribe first in Southwest to deploy sludge system at water recycling facility
Mastering Digesters
Water & Wastes Digest
July 2006
By Brad Martin & Greg Moen
Tulsa Metropolitan Utility Authority utilizes unique Class A biosolids solution
Maximum Capacity Expected
Water & Wastes Digest
September 2004
By Christopher L. Komline
As a part of the expansion, a better method of sludge disposal was needed or the 20 acre lagoon would soon be full.
Double Dewatering
Water & Wastes Digest
February 2004
Completion of this project will make the Broward County facility one of the five largest belt filter press dewatering facilities in the U.S.
Progressive Cavity Cake Pumps Replace Conveyor System
Water & Wastes Digest
July 2003
Fred Murillo
Costly, time-consuming and persistent maintenance problems, coupled with unacceptable odor levels, prompted a major southwest wastewater treatment plant to scrap its sludge handling system.
New Wastewater Treatment Technology Emerges from Nevada Desert
Water & Wastes Digest
January 2003
Out of a landscape parched for water?but certainly not ideas?comes a unique innovation in wastewater treatment from Premier Wastewater International (PWI tm).
Based in southern Nevada, PWI has developed an economical treatment process that can remove more than 90 percent of the organic matter, according to Matt Russell, president and CEO.
Recent Advancements in Wastewater Sludge Composting
Water Engineering & Management
October 2002
Izrail S. Turovskiy, D. Sc. and Jeffrey D. Westbrook, P.E.
Many utility providers face growing problems with the disposal of the wastewater sludges (residuals) that are created as part of the wastewater treatment process. Other providers are looking to additional methods for converting the residuals into fertilizer/soil conditioner with a higher economic and social value. The new technology presented in this paper provides a composting method to address the disposal and/or use of wastewater residuals. By maintaining the recommendations presented in this paper, a Class A biosolid can be produced. This Class A biosolid provides the utility operator the maximum flexibility for its disposal or use as a fertilizer, soil conditioner, etc.
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Vortex System Proves Effective Mixing Biosolids In Storage Tanks
Water & Wastes Digest
January 2002
J. Mark Crump
The Springfield Metro Sanitary District (SMSD), a wastewater treatment facility that serves Springfield, Illinois and surrounding communities, needed to meet the pathogen and vector-attraction reduction requirements and prevent nitrate levels from contaminating groundwater. After careful study, the SMSD selected a process that would allow it to store digested biosolids that accumulated when the sludge could not be applied.
Pretreatment System Reduces Pollutants in Rendering Facilities
Water Engineering & Management
November 2001
The rendering industry contributes tremendously to efforts to maintain a clean and healthful environment and prevent a waste disposal problem by turning this otherwise unusable material into usable commodities. The CAF system has been successful at numerous rendering facilities.
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Automated Heat Drying System Produces Class A Biosolids, Aids Storage
Water & Wastes Digest
September 2001
USFilter
he rainy
winter months in Forest City, North Carolina, posed a major challenge for the
city’s wastewater treatment plant. In addition to treating wastewater, the city
also recycled and stored biosolids — a byproduct of the wastewater treatment
process.
Unique Dewatering Method Minimizes Handling
Water & Wastes Digest
February 2001
Edited by WWD staff
Throughout the 70s and 80s, a dramatic evolution took place in the area of environmental regulations. In the midst of these rapidly changing government mandates, numerous technological advancements were made, as business and industry raced to keep in compliance. One such technology was "dewatering."
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Innovative Odor Control -- A Good Neighbor Program
Water & Wastes Digest
February 2001
The Water and Wastewater Utility Department of the city of Austin, Texas, manages the operation of a regional sludge processing facility where they faced an odor problem. Working with a consultant, they purchased a fixed bed, iron oxide based odor control system from The SulfaTreat Company.
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Centrifuge Helps Filter Water and Process Fluids Automatically
Water Engineering & Management
February 2001
Customers’ calls documenting the ability to remove solids that build up in their water in their production and processing plants continue to confirm for Jeffery Beattey, president of Midwest Engineered Products Corp., an original equipment manufacturer based in Indianapolis, Ind., that his recent invention of a new centrifuge for fluid filtration was just in time.
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Philadelphia Sewer Replacement
A Work of Art
Water & Wastes Digest
September 2000
Facing a task that might have daunted even Rocky, engineers from Philadelphias Water Department needed to replace the deteriorating Central Schuylkill east side intercepting sewer line running beneath the citys famed Art Museum. They decided to install a parallel sewer line and use the existing sewer as an overflow line.
Automating the Sludge Pumping/Polymer Metering Systems
Water Engineering & Management
May 2000
Ted Follest
The Duffin Creek Water Pollution Control Plant (WPCP), located near Toronto, Ontario, Canada, has installed a state-of-the-art, computer controlled system to regulate polymer injection rates.
Municipal Sludge Dryer Produces Higher Solids Off the Press
Water & Wastes Digest
February 2000
A municipal sludge dryer was designed and installed by USFilter’s Davis Products for the Oconee County South Carolina Sewer Commission at the Coneross Wastewater Treatment Plant. The dryer is integrated into existing dewatering facilities for the purpose of drying sludge into a Class A biosolid product.
Oxygen-enhanced Incineration Increases Throughput, Decreases Emissions
Water & Wastes Digest
February 1997
In most wastewater treatment facilities, solids handling is the single most expensive operation. Innovative oxygen injection technology, combined with vacuum pressure swing adsorption (VPSA) oxygen supply systems, allows a plant to achieve a dramatic increase in personnel and equipment productivity with a minimal capital expense Ñ while reducing emissions.
Scalping Biosolids: A Sludge Dewatering Alternative
Water Engineering & Management
November 1995
Lawrence M. Kaplan, P.E.
By constructing and operating a scalping facility, some wastewater treatment plants can achieve great reductions in hauling and tipping fees.
Wastewater Disposal Goes Underground
Water Engineering & Management
February 1995
Craig W. Lichty
A susbsurface percolation system has been adapted to handle the wastewater from a California town.
Long Range Planning for Biosolids Management
Water Engineering & Management
February 1995
Margaret Norton-Arnold, Lisa Fitzhugh and Vicki Fischer
Given the regulatory demands imposed on sludge disposal, options for action have to be investigated carefully.
Greening of the Desert
Water Engineering & Management
November 1994
Bill Schoenecker
Sludge from three wastewater plants helps farm land.
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