Design-build wastewater treatment plant upgrade
Courtesy of Burns & McDonnell
Client: City of Andover
Completion Date: 1997
- Extended aeration
- Ultraviolet disinfection
- Effluent reuse
- SRF funding
When Andover officials realized the existing plant would not meet future needs or new effluent requirements, they decided the design-build method of project delivery would produce a new wastewater treatment plant in less than a year.
Burns & McDonnell incorporated ultraviolet disinfection into the design of the plant and provided for reclamation of effluent to be used in the irrigation of a local golf course.
The plant was completed six to seven months ahead of the owner's schedule at a cost savings of $2 million, and two years ahead of the traditional method of design and construction.
Effluent management flexibility through nutrient removal
ABSTRACT The City of Carson City (City) Wastewater Reclamation Plant (WRP) is facing several effluent management challenges, which include increased effluent nitrogen concentrations, seepage from its reclaimed water storage reservoir, and increased influent flow due to growth. The City desires an economical solution that will allow it to continue its 100 percent reuse program as well as protect the public health and environment. The City approached the problem by working with the Nevada Department of Environmental...
Sludge Minimization Technologies-Doing More to Get Less
Sludge minimization technologies have been available for several decades; however recent developments have brought some sludge minimization technologies to the forefront. All of the technologies utilize one or more of three basic approaches to minimize the amount of waste activated sludge produced by an activated sludge process: cell lysis, cyclic oxic environments, and long solids retention time. This paper will discuss the three basic mechanisms, will review the development of several sludge minimization...
Trojan Technologies Helping To `Renature` The Isar River
The renaturing of the Isar River in Germany is one of the most unique and ambitious environmental programs in the world. Part of a major undertaking by the State of Bavaria, the Isar River, which flows northward from its source in the Alps through Munich and then on to the Danube, is an important tourism and recreation area for millions of citizens and visitors each year. Bavaria has committed about EURO 3.5 million to the first phase of the overall renaturing project, which will help wastewater plants along...
Bring on the rain!
Alabama facility implements direct filtration for wet weather conditions During significant rain events, flow at the Village Creek Wastewater Treatment Plant (Birmingham, Ala.) can increase from a normal 30 mgd (114,000 m3/d) to more than 360 mgd (1.4 million m3/d). In the past, any flow beyond about 80 mgd (303,000 m3/d) had to be bypassed to the Village Creek waterway, which feeds Bayview Lake. Both the creek and the lake are impaired and have been the focus of ongoing cleanup efforts by community groups and...
SBR Wastewater Treatment Provides Large Clean-up on Small Site
One of the largest capacity wastewater treatment plants in Europe is under construction on a small plot of land at Ringsend, on Dublin Bay in Ireland. Sequencing batch reactor (SBR) technology and 100,000 diffusers from ITT Industries` Sanitarie unit was selected to meet the challenging waste treatment needs for this site. When Dublin`s wastewater treatment plant was built in the 1970s, it answered the Irish capital`s population and environmental needs. But as environmental awareness and Dublin`s population has...
Major Breakthrough in Wastewater Nitrogen Removal
Working together in close collaboration, the Hollandse Eilanden en Waarden Water Authority (Zuiveringsschap Hollandse Eilanden en Waarden, ZHEW) and Paques are pleased to announce the world`s first system for sustainable nitrogen removal from waste water. In May of next year, an Anammox® system will be opened in the Dokhaven waste water purification plant of ZHEW in Rotterdam. Through the combination of the Anammox® process with de existing nitrogen removal plant (SHARON - process), a high level of sustainable...
Recovering Carbon Source from the Thermophilic Aerobic Digested Sludge for Biological Nutrient ...
Available carbon source is essential to enhance the biological nutrient removal (BNR) in wastewater treatment. Volatile fatty acids (VFAs) accumulated in the thermophilic aerobic digestion (TAD) supernatant under the microaerated operation is the potential carbon source for denitrification and phosphorus removal. This study investigated the use of VFAs recovered from the TAD supernatant in the BNR processes. Batch tests (2.8 L/batch, simulating the anaerobic, anoxic and aerobic conditions in sequences) and...
Troubleshooting the Compost Pile
While composting is a biological process, we as composters must provide the microorganisms that do the work with the conditions they need to do their job. If there is a problem with the system, then look at it from the point of view of the microbe. What does that microbe need to function, and why isn’t it functioning correctly? Microorganisms need a source of energy organic feedstocks to feed on and draw energy. Some of that released energy causes the compost pile to heat. Besides energy, organisms need nutrients...
Composting Key to Meeting Landfill Organics Ban
The Halifax Regional Municipality (HRM) in Nova Scotia took a giant leap in 1998 to reaching a 50 percent diversion goal by 2000. Between July and November, 1998, organics collection carts were distributed to almost 100,000 households in the region. In December, two new composting facilities designed to process those materials, as well as feedstocks from the commercial sector, opened their doors. “The Halifax Regional Municipality’s new integrated solid waste-resource management system is ‘leading edge’ in all...
Environmental Situation in Africa
Abstract Africa The economic and social needs of Africa depends more on its environmental resources but these natural resources are seriously declining and that is really effecting the entire region. Sustainable development in this rapidly changing region has become an imperative, and must take place in the complex context of a diverse and changing ecosystem, political transition and evolution toward market economies. The region is heading towards integrating environmental components into sectors like...
Moving bed biofiltration for dynamic denitrification of 3,600 m3/h sewage effluent
STP ‘De Groote Lucht’ in the Netherlands had to be upgraded in order to meet the tightened criterion for total nitrogen (10 mg/l N as yearly average). ASTRASAND moving bed biofiltration, is introduced for post-denitrification. Pilot plant tests were executed in 1996 and it was found that in order to achieve good filter performance with the specific process conditions, an adequate process control system was required. This filter control ensured removal efficiencies of > 95% with influent concentrations up to 30...
MSW Composting in the United States
Massachusetts became home to two new composting facilities that process MSW and biosolids. Nationally, the total number of operating plants is 19. Since the mid-1980s, BioCycle has been conducting an annual, nationwide survey of municipal solid waste (MSW) composting facilities. From the late 1980s into the early 1990s, when it was projected that landfill capacity would drop and tipping fees would skyrocket, interest in MSW composting was high. About two dozen companies were marketing systems and equipment, and...
Recycling of Municipal Wastes in Agriculture. II. Irrigation of Corn with Treated Municipal ...
Abstract Restriction of available water observed in the last years in arid or semiarid areas forces the planners to consider any source of water for irrigation. The purpose of this paper was to investigate the suitability of wastewater produced by the treatment plant of the city of Larissa, Central Greece for irrigation of corn. With a three year`s field experiment it was shown that wastewater significantly increased corn yield and may substitute considerable quantities of mineral fertilizers. Increase in corn...
Wastewater Treatment Plant Installs Covers & Scrubber System to Control Odor Emissions
Twenty-five miles west of Dayton, Ohio is the county seat for Preble county - Eaton, Ohio, population 8,000. As the only city in this largely rural county, Eaton finds itself the focus of residential and commercial development transforming it into a bedroom community for Dayton as well as Cincinnati 50 miles to the south. Participating in this transformation is the Eaton Wastewater Treatment plant. From the original facility in 1909, the Eaton plant has upgraded and expanded to a treatment capacity of 1.9...
Effluent Reuse for Power Generation: Pacific Power Eraring Power Station
Background Pacific Power`s Eraring Power Station (Eraring), is a 4 x 660 megawatt coal-fired power station and provides some twenty-five per cent of NSW power requirements. Eraring is located in close proximity to Dora Creek sewage treatment plant (STP), north of Sydney. The cleaner production initiative at Eraring was recognised by a Highly Commended classification in the inaugural NSW EPA, ACCP and AWWA 1996 National Cleaner Production Award.
In Situ Physical/Chemical Treatment for Ground Water and Leachate
The main advantage of in situ treatments is that they allow ground water to be treated without being brought to the surface, resulting in significant cost savings. In situ processes, however, generally require longer time periods, and there is less certainty about the uniformity of treatment because of the variability in aquifer characteristics and because the efficacy of the process is more difficult to verify. Physical/chemical treatment uses the physical properties of the contaminants or the contaminated...
Common Treatment Technologies for Halogenated SVOCs in Soil, Sediment, and Sludge
Common treatment technologies for halogenated SVOCs in soil, sediment, and sludge include biodegradation, dehalogenation, incineration, and excavation with off-site disposal. All types of biodegradation, both in situ or ex situ, can be considered to remediate soils: in situ bioremediation, bioventing, composting, controlled solid phase, or landfarming. Slurry phase biological treatment is also applicable but is less widely used. Treatability studies should be conducted to evaluate design parameters, such as...
Introduction Land Treatment is a full-scale bioremediation technology in which contaminated soils, sediments, or sludges are turned over (i.e., tilled) and allowed to interact with the soil and climate at the site. The waste, soil, climate, and biological activity interact dynamically as a system to degrade, transform, and immobilize waste constitutes. Wastes are periodically tilled to aerate the waste. Soil conditions are often controlled to optimize the rate of contaminant degradation. Conditions normally...