Managing Nutrient Pollution
Water & Wastes Digest
May 2008
By David Slack
The Howard F. Curren Advanced Wastewater Treatment Plant continues to reduce nutrient inflow into the Tampa Bay Estuary after nearly 30 years in operation
Opting for Ozone
Water & Wastes Digest
May 2008
By Clifford Seth Lebowitz
A Kansas city addresses taste and odor problems with a primary disinfection ozone system
Scrubbing Out Odor
Water & Wastes Digest
January 2008
By Mike Hoover
Packaged scrubber system fills odor control needs in a Michigan town
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UVC Lights Enhance Air Quality
Water & Wastes Digest
December 2007
By Robert Scheir
Indoor air quality problems are solved by an odor control system and UVC lights
Sludge Treatment Made Easy
Water & Wastes Digest
September 2007
By Neda Simeonova
Lakeview WWTP reduces odor and maintenance costs by switching from incineration of heat-treated sludge to incineration of untreated sludge
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Low Odor Control
Water & Wastes Digest
January 2006
By Richard Speece, Ph.D.
Orange County demonstrates superoxygenation for odor/corrosion prevention
Keeping Odor Under Control
Water & Wastes Digest
August 2005
By Ed Sullivan
“We are very concerned about maintaining an odor cap,” said David Williams, project engineer at Shell Oil (Shell Manufacturing) Martinez Refinery, California “Our treatment pond is about 1/4 mile from a residential community. We’ve got a delicate situation where even just a slight amount of odor could arouse complaints from the community. So, we keep a close eye on it.”
Providing a One-Two Punch
Water & Wastes Digest
September 2004
Lianna Mah
The Oakville plant treats 109 million liters per day of water from Lake Ontario.
Ending Odor Complaints
Water & Wastes Digest
May 2004
A long-running odor problem was solved by tapping a 30,000-cfm-capacity biofilter array into a 14 mgd average, 55 mgd maximum sewage transfer line. The line discharges into underground junction box, with the odor control system’s main collection duct evacuating box headspace air above ground for humidification and biofiltration before discharge to atmosphere through fan stacks.
Winds Can Produce a Malodor Malady
Water & Wastes Digest
September 2003
Anthony J. Sadar
Odor-minimization practices can reduce your facility's chance of emitting offensive odors beyond its borders. By implementing odor-minimization techniques, careful siting and construction of potential odor-producing sources, and the use, when necessary, of odor controls, your plant can successfully minimize malodors and keep its good-neighbor status.
Integrated Technology Simplifies Dewatering Process at Two Municipal STPs
Water & Wastes Digest
February 2003
Robert W. Mau, USFilter
The borough of West Mifflin, Penn., is a community located about nine miles southeast of downtown Pittsburgh. For years, the West Mifflin Sanitary Sewer Municipal Authority (WMSSMA) hauled liquid from its New England STP (a 1.2 mgd plant) to the Thompson Run facility (a 4.5 mgd plant), where it was processed on a belt press for dewatering. However, the hauling and associated labor proved very costly, and it was not always easy to coordinate dewatering schedules for both plants.
Additionally in the late 1990s, the WMSSMA faced a requirement to achieve higher cake solids and provide odor control that would respect nearby homes and businesses. Moreover, space constraints and staffing reductions necessitated a simple-to-operate installation.
Odor Control System
Water & Wastes Digest
January 2003
Brent Howe
Odor complaints have become an all too familiar subject to WWTP managers. They are not only expected to manage their plants effectively and efficiently, meeting both regulatory specs and budget requirements – they are also expected to be good neighbors and keep odor under control. This article describes the successful odor control efforts of the South Dearborn Regional Sewer District located in Lawrenceburg, Ind.
Integrated Technology Simplifies Dewatering Process at Two Municipal STPs
Water & Wastes Digest
October 2002
In the late 1990s, one western Pennsylvania sewage treatment plant (STP) sought to process Class B biosolids on-site, eliminating the expense of hauling liquid off-site and significantly decreasing associated labor costs. At the same time, the plant needed to achieve higher cake solids and provide strict odor control. In addition, the selected equipment also had to be able to greatly enhance process efficiencies at not just the one plant, but its sister facility as well. Fortunately, USFilter offered a fairly simple solution to meet the STP's seemingly complex needs.
New Mixed Oxidant Controls Belt Press Odors
Water & Wastes Digest
February 2002
A Midwest municipality needed to find a way to eliminate hydrogen sulfide from the atmosphere in the sludge dewatering area as well as on the plant grounds. The successful elimination of noxious and toxic gas would not only make a safer, healthier environment for the workers involved but would also result in a reduction in the corrosion of metallic components in the dewatering area, while greatly reducing odor complaints from neighbors.
Neutralizing Noxious Odors at Singapore’s Ulu Pandan Sewage Treatment Works
Water Engineering & Management
January 2002
Larry Lewis and Ken Galardi, P.E.
Three significant reputations for innovative, reliable solutions to environmental problems came together as the Singapore Ministry of the Environment (ENV) planned for expansion and upgrading of its water and wastewater treatment facilities at Ulu Pandan Sewage Treatment Works .
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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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Pump Upgrade Solves Odor Problem at Texas Lift Station
Water & Wastes Digest
September 2000
Threatened by a stench-driven lawsuit several years ago, the city of Rockport, Texas, decided to convert the last of its three dozen lift stations to submersible pumps. Today, with the problem resolved, significant benefits have accrued. The odors have dissipated, the nearby residents and business people are breathing comfortably, and the sewer system is operating more efficiently.
Dairy Farmers Having Success Piping Animal Waste to Lagoons
Water Engineering & Management
August 2000
Two dairy farmers have found similar success using animal waste lagoons to protect groundwater and cut overhead. For one of these farmers, recycling the herd’s waste has even led to another farm-based business.
Hydrogen Sulfide Control in Wastewater Collection Systems
Water Engineering & Management
August 2000
Tony Palmer, Paul Lagasse and Maureen Ross
When most environmental professionals think about hydrogen sulfide control in their wastewater collection systems, they are concerned with odor and corrosion. Instrumentation is now available to measure sulfides online, providing the opportunity to optimize the chemical dosage and monitor sulfide control.
Wastewater Odor Control: An Evaluation of Technologies
Water Engineering & Management
May 2000
Vaughan Harshman, P.E., and Tony Barnette
In the modern world of wastewater treatment, control of odors has moved from an afterthought to a primary design consideration for most collection and treatment facilities.
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