61. Aerated Lagoons - Wastewater Treatment Information about the operation and science of aerated lagoons for wastewater treatment. http://www.lagoonsonline.com/

Lagoon Systems In Maine An Informational Resource for Operators of Lagoon Systems Mission Search Acknowledgements Discussion Group ... Firms Aerated Lagoons - Wastewater Treatment astewater lagoons have been used as a process for wastewater treatment for centuries. In the 1920's artificial ponds were designed and constructed to receive and stabilize wastewater . By 1950, the use of ponds had become recognized as an economical wastewater treatment method for small municipalities and industries. As of 1980 approximately 7,000 waste stabilization lagoons were in use in the U.S. Today, one third of all secondary wastewater treatment facilities include a pond system of one type or another. Of these, just over 90% are for flows 1 MGD or less. But ponds can be used for larger cities for wastewater treatment as well. Some of the largest pond systems in this country are in Northern California, serving such cities as Sunnyvale (pop. 105,000), Modesto (pop. 150,000), Napa (pop. 175,000), and Stockton (pop. 275,000). Home Site Map Search Contact Us ... Links

62. Environmental Inquiry - Wastewater Treatment Environmental Inquiry is a website and curriculum series developed at Cornell University to help students conduct environmental science research and participate in communities http://ei.cornell.edu/biodeg/wastewater/

Home For Teachers For Students Toxicology ... Watershed Dynamics Wastewater treatment Wastewater treatment uses microbes to decompose organic matter in sewage. If too much untreated sewage or other organic matter is added to a lake or stream, dissolved oxygen levels will drop too low to support sensitive species of fish and other aquatic life. Wastewater treatment systems are designed to digest much of the organic matter before the wastewater is released so that this will not occur. Treatment systems use physical, chemical, and biological processes: Primary treatment physically removes large solids using grates, screens, and settling tanks. Secondary treatment promotes growth of bacteria and other microbes that break down the organic wastes. These biodegradation processes also take place in streams, lakes, and oceans, but the purification systems in nature can easily be overloaded with input of too much organic waste. Secondary treatment prevents this type of pollution by degrading most of the organic matter before the water is released into the environment. Tertiary treatment is used only where it is needed to protect the receiving waters from excess nutrients. In tertiary treatment, the concentrations of phosphorus or nitrogen are reduced through biological or chemical processes.

63. IREPOLIA :: �tudes Et Analyses Environnementales Conducts research and technology development on wastewater treatment methods. Site is in English and French. http://www.irepolia.com/

64. Victoria's Water Environment - Wastewater wastewater. A key role of EPA is to improve the quality of water environments and prevent water pollution. Although major improvements in the control of wastewater have already http://www.epa.vic.gov.au/water/wastewater/default.asp

@import "/css/main.css"; Skip to content Quick links: Site map Subscribe Careers Contact details Main navigation: About EPA Air Land Noise ... Sustainable business and industry Site tools: Change size Small text size Large text size Print You are here: Home Water Wastewater A key role of EPA is to improve the quality of water environments and prevent water pollution. Although major improvements in the control of wastewater have already taken place, there are still cases where the impacts of discharges need to be minimised. Wastewater includes sewage and industrial waste. EPA's program to control wastes is based on the following hierarchy (order of preference): avoidance re-use and recycling recovery of energy treatment and disposal The best way to manage wastes is to stop them being generated, while treatment and disposal is the least preferred approach. This order applies to all types of waste, including wastewater. EPA believes the above hierarchy is a key to moving towards a sustainable society. Guidelines for risk assessment of wastewater discharges to waterways The impact of wastewater discharges to inland and marine water bodies is attracting greater interest, particularly given predictions for a drier climate in the future. Impacts are often exacerbated by drought conditions, with low flows reducing the dilution of discharges.

65. Ecological Wastewater Treatment Systems: Restorers/Living Machines Designs and builds ecological wastewater treatment systems called Living Machines in UK. http://www.ltluk.com/

66. North River Wastewater Treatment Plant North River wastewater Treatment Plant. The New York City Department of Environmental Protection’s (DEP) Bureau of wastewater Treatment manages a comprehensive program to http://www.nyc.gov/html/dep/html/harbor_water/northri.shtml

67. Water And Pollution Control Depa Drinking water and wastewater treatment provider for the City of Ames, Iowa http://www.city.ames.ia.us/waterweb/

East 5th Street Building 1 Ames, Iowa 50010 Phone: FAX: Water Rate Structure Administration Project Updates Employment/Internship Opportunities ... Water and Pollution Control Department Welcome OUR VISION "Every City of Ames Water and Pollution Control Department employee commits to continually earning the trust and confidence of our community by demonstrating dependability, professionalism and leadership in our mission to protect public health and the environment." WHAT'S NEW IDNR Issues "DRAFT" National Pollutant Discharge Elimination System (NPDES) permit for the City of Ames. View permit. TakeAway Iowa's Medication Disposal Program Project Updates ... View the 2010 Consumer Confidence Report Ames WPC Receives the NACWA's Platinum-20 Peak Performance Award again in 2010! WHAT WE DO From your toilets and sinks to the sewers and streams we ensure Ames has quality water. The water you drink goes through many processes before it lands in your cup. The process starts by collecting water from Squaw and Skunk River Valley shallow groundwater aquifers (or underground layers of water) and treating the water, making it potable (drinkable). Once treated the water is distributed throughout the city into homes and businesses. The cycle is then completed when water from your showers, sinks and toilets enters the sewer system travels to the wastewater facility where it is treated before returning to the lakes and streams, creating a healthy environment.

68. EcoWaters Projects CEPP conducts workshops, demonstrations, evaluation and public education about ecological wastewater solutions, such as composting toilets and graywater systems. http://www.ecowaters.org/

xxx formerly Center for Ecological Polution Prevention Home Calendar Ecowaters News EcoSan Center ... Contact Ecowaters Projects develops, promotes and demonstrates better wastewater management systems and practices, with an emphasis on source-separation and utilization approaches. ...Because the best way to deal with pollution and wastes is to avoid creating the problem in the first place. Join us! Take a tour, attend a workshop, buy a book, and find out more about waste-utilization practices. Contact us: info @ ecowaters.org (remove spaces) LEARN about ways to manage water and wastewater ecologically through Ecowaters presentations, tours, and books TOUR a variety of plant-based wastewater systems for a range of applications, from homes to whole communities. BUILD composting toilets, graywater gardens and other ecological wastewater systems with Ecowaters workshops worldwide Ecowaters Projects is mostly funded through the sale of its books and plans Books Ecowaters provides plans for constructing composting toilets and graywater systems Plans

69. Universal Waste, Waste Water Disposal, Drums, Solid Waste United Waste Water processes and recycles a full range of nonhazardous industrial and other waste. We include waste water, ink and paint washwater, sludges, high metal streams http://unitedwastewater.com/

Skip to Navigation An Employee Owned Company in Front Page in Front Page Header 3 in Front Page Header Last in Front Page United Solutions, Inc. is a full service environmental company that manages tomorrow's resources today At United Waste Water Services, we specialize in non-hazardous waste pre-treatment and recycling. Currently servicing Ohio, Kentucky, Indiana, Tennessee, Alabama, North Carolina and West Virginia. United offers a professional and guaranteed high level of quality to all of our customers. Our services are designed to achieve a superior level of fitness and performance, and we look forward to designing a custom program to fit your individual needs. We invite you to fill out our customer survey , and let us know what is important to you. Thank you United Team Members for working together and achieving the Top 60 Work Places in Cincinnati! If you are interested in learning more about the services that United can provide, please contact us to schedule a facility audit with a member of our management team About Us Services Referrals ... Locations Versatility - Scheduled route service, call in service, 24 hour emergency service

70. - WaterWiser - Professional And Technical Resources - AWWA Water efficiency clearning house. Directory of water and wastewater related publications, products and services. http://www.awwa.org/waterwiser/

Advanced Search Search The Water Library Join/Renew Member Benefits ... WRF: People conserve to save money Unable to Locate Requested Resource Thank you for trying to access online resources at the American Water Works Association Web site! Your attempt has failed and prompted this message either because the link you used is no longer valid or the content has been removed from the site. Please link to the AWWA Home Page to search for or navigate to content you are looking for, and replace invalid bookmarked URLs with new ones as applicable. If you manage a Web site that links to AWWA’s site, please update those URLs with new ones as applicable. If you have any questions, please contact AWWA . You can also reach our Customer Service Department at 800.926.7337 (303-794-7711 if outside the U.S. and Canada) or custsvc@awwa.org SHARE PRINT Welcome Please Log In American Water Works Association - 6666 W. Quincy Ave., Denver, CO 80235 Phone: 303.794.7711 or 800.926.7337 - FAX: 303.347.0804 -

71. Wastewater wastewater. Outside of the laboratory there is no such thing as pure water. Even rain water, for example, will take on gases, solid particles and other impurities as it falls http://water.me.vccs.edu/courses/ENV149/wastewater.htm

72. UU/IT/research/syscon/automatic/modcont_waste Control and optimization of wastewater treatment plants, research in progress. http://www.it.uu.se/research/syscon/automatic/modcont_waste

Information�Technology Education Research Centres ... Seminars Divisions Computer Systems Computing Science Human-Computer Interaction Scientific Computing ... Internal Search� MODELING AND CONTROL OF WASTEWATER TREATMENT PLANTS Objectives Increasing demands on effluent quality and increasing loads in combination with shortage of land area call for an improved control and optimization of wastewater treatment plants. Applied research in automatic control is one important tool in achieving an overall high plant performance. An improved control and optimization of wastewater treatment plants lead to an increased pollutant removal, a reduced need for chemicals and energy savings. We are developing control and estimation strategies for wastewater treatment plants. In particular, the activated sludge process is studied. A key goal is to develop and evaluate control strategies which can be of practical use in improving the performance of the plants. In several projects we develop methods for reducing the energy consumption without reducing the effluent quality (sometimes the effluent quality even improves!). The following researchers in our group perform research in applying methods from automatic control to wastewater treatment technologies: Senior researcher: Bengt Carlsson Ph.D. student:

73. AECOM - Water - Wastewater At AECOM, we develop sustainable wastewater treatment systems to meet today's environmental challenges. We take an integrated and sustainable approach, which is essential to the http://www.aecom.com/What We Do/Water/Wastewater

@import "/internet1/css/print.css"; English Russian - Русский Chinese (Simplified) - 简体中文 French - Français Offices and Contacts Calendar About All AECOM Brochures ... Water Resources Print Xi Lang Wastewater Treatment Plant Read More Sewage System Master Plan for Delhi, India Read More Blue Plains Wastewater Treatment Plant AECOM provided construction management, resident engineering and inspection services, quality control, safety oversight, and contract administration in support of a major capital improvement program at the Blue Plains Wastewater Treatment Plant. Read More Aberdeen Wastewater PFI Scheme AECOM with Balfour Beatty Construction was contracted for the Aberdeen wastewater project in Aberdeenshire, Scotland. Read More Harbour Area Treatment Scheme Stage 2A - Sewage Conveyance System, Hong Kong Due to increasing pollution of Hong Kong’s Victoria Harbour waters, an infrastructure program known as the Harbour Area Treatment Scheme (HATS) was created to improve the water quality in Victoria Harbour. Read More Additional Information Relevant News Upcoming Events Key Contacts Available Jobs Wastewater At AECOM, we develop sustainable wastewater treatment systems to meet today's environmental challenges. We take an integrated and sustainable approach, which is essential to the effective management of wastewater and wastewater systems and the protection of our public waterways and drinking supplies.

74. Welcome To Calgon Carbon Corporation Specializes in wastewater treatment, water purification, and municipal water treatment. http://www.calgoncarbon.com/

dqmcodebase = "/js/" //script folder location Choose your industry... Aerospace Agriculture Automotive Catalyst Cigarette Dry Cleaning Electric Utilities Electronics Environmental Remediation Food and Beverage Home and Commercial Water Treatment HVAC Industrial Gas Inorganic Chemical Medical Metals and Mining Municipal Drinking Water Municipal Waste Water Oil and Natural Gas Organic Chemical Other Personal Protective Equipment Petrochemical Pharmaceutical Printing and Surface Coating Pulp and Paper Solutions Literature Click your browser PRINT button to print this printer friendly page. For our European Operations please contact: Calgon Carbon News November 1, 2010 Calgon Carbon Announces Third Quarter Results November 1, 2010 Q3 2010 Calgon Carbon Corporation Earnings Conference Call September 21, 2010 Important pricing information for our customers August 20, 2010 Calgon Carbon Awarded $19.8-Milion Contract for Ballast Water Management July 29, 2010 Calgon Carbon Receives Verdict in ADA-ES Lawsuit July 14, 2010 Calgon Carbon Names New CFO June 28, 2010

75. Welcome To City Of Spokane Wastewater Management Sewer Maintenance 909 East Sprague Avenue 99202 Phone(509) 6257900 Fax(509) 625-7940 http://www.spokanewastewater.org/

Sewer Maintenance 909 East Sprague Avenue 99202 Phone:(509) 625-7900 Fax:(509) 625-7940 Riverside Park Water Reclamation Facility 4401 N. A.L. White Parkway 99205 Phone:(509) 625-4600 Fax:(509) 625-4605 Home CSO Reduction Collection System Reclamation Facility ... News Items Welcome to the Wastewater Management Department The City of Spokane Wastewater Management Department provides customer services relating to wastewater collection systems, wastewater treatment, stormwater management, and combined sewer overflow reduction. All of these services are designed and managed to protect our local water resources; both our rivers and groundwater, which are intimately connected. All of our services are linked through our Water Quality Improvement Program (WQIP) to assure that every effort is being made to protect Spokane's water in an integrated fashion. As our WQIP logo depicts, it takes many helping hands to protect our most precious natural resource. The department employs over 170 full-time and regular part-time staff, with an annual operating budget of over $42 million dollars (excluding major capital expenditures). The current annual budget, and associated program allocations, can be viewed by

76. Wastewater Treatment India, Solar Power Solutions India - Paradise Environment P A company offers a range of products and solutions for wastewater treatment for the industry and domestic applications. http://www.paradiseenviro.com

77. Wastewater - Definition And More From The Free Merriam-Webster Dictionary Definition of word from the MerriamWebster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. http://www.merriam-webster.com/dictionary/wastewater

78. Wastewater Treatment Systems | Sewage Treatment Systems | Water Treatment In Afr wastewater and water treatment plants and plant design, engineering and contracting. http://www.naston.co.uk

News Home Profile Products IMBR SBR SAF COMPAK ... FBDA Projects Kew STW Transfer Crawley STW Extensions Stoke Newington PS Thornham WTW ... J.E. Hartley Project List Project Reference List Powder Process Division Package Plant Reference List Latest News ... Links Naston Ltd The Control Tower Brooklands Weybridge Surrey England KT13 0YP Tel: 01932 336611 Phone calls may be recorded for training and quality purposes. Fax:+44 (0)1932 336886 Email: enquiries@naston.co.uk Naston Ltd: Water and Wastewater Treatment Systems Naston have extensive experience with water and waste water treatment systems from large scale projects to smaller sewage treatment package plant schemes; Naston are fully experienced in taking a project from conception to completion. Our primary areas of expertise are: Potable Water Treatment Municipal Sewage Treatment Sludge Treatment Industrial Wastewater Treatment Effluent Treatment Systems Bulk Material Handling Sewage Treatment Systems Including Package Plant Project Design and Management Waste Water Treatment Systems Process Monitoring and Control Tunnel Ventilation Systems Recent large scale water treatment contracts in West Africa, The Middle East, Central America and the UK have all been Project Managed to Budget and on schedule therefore providing an efficient service each time.

79. Wastewater Wastewater News, Recycling, Resources, And Systems Water World's coverage of wastewater. Topics include wastewater treatment, water collection, biosolids, water reuse and water recycling. Water industry Buyer's Guide available. http://www.waterworld.com/index/waste-water.html

80. Sewage Treatment Ireland, Water Treatment Chemicals, Water Testing Innovative wastewater technology for industry and community. http://www.hydrointernational.com/

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