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Studying the fate of drugs in wastewater
December 27, 2005Researchers at the National Institute of Standards and Technology (NIST) have published an interesting study that sheds light on the fate of a familiar pharmaceutical as it enters the waste stream. In work initially described last year, NIST chemists investigated probable chemical reactions involving acetaminophen when the drug is subjected to typical wastewater processing. Acetaminophen is the most widely used pain reliever in the United States, and a study of 139 streams by the U.S. Geological Survey found that it was one of the most frequently detected man-made chemicals.
The scientists found that the drug readily reacts in chlorine disinfection to form at least 11 new products, at least two of which are known to be toxic. The results, according to lead author Mary Bedner, demonstrate that environmental scientists need to be concerned about downstream reaction products as well as the original waste materials. "The issue is what you should be looking for in the environment," she says. "When you are looking for the effects of pharmaceuticals in the environment, you need to ask what they're going to turn into."
National Institute of Standards and Technology (NIST)
Wastewater Current Events and Wastewater News RSSExpert to Discuss Phosphorus' Impact on Gulf 'Dead Zone'
Phosphorus is an essential element in production agriculture, however fertilizer runoff and wastewater discharge have led to massive eutrophication problems in water bodies worldwide.
Chloride Found at Levels that Can Harm Aquatic Life in Urban Streams of the Northern U.S.--Winter Deicing a Major Source
Levels of chloride, a component of salt, are elevated in many urban streams and groundwater across the northern U.S., according to a new government study.
Toward a nanomedicine for brain cancer
In an advance toward better treatments for the most serious form of brain cancer, scientists in Illinois are reporting development of the first nanoparticles that seek out and destroy brain cancer cells without damaging nearby healthy cells.
Denitrification, its importance once diluted, may be back on top, Princeton-led team says
After more than a decade of inquiry, a Princeton-led team of scientists has turned the tables on a long-standing controversy to re-establish an old truth about nitrogen mixing in the oceans.
Watching over the water system
After a big earthquake, it's key to keep the water system afloat. Water is necessary for life, and it fights the fires that often accompany such disasters.
Energy efficient sewage plants
High-rate digestion with microfiltration is state-of-the-art in large sewage plants. It effectively removes accumulated sludge and produces biogas to generate energy. A study now reveals that even small plants can benefit from this process.
U of Minnesota researchers discover high levels of estrogens in some industrial wastewater
In a groundbreaking study, civil engineering researchers in the University of Minnesota's Institute of Technology have discovered that certain industries may be a significant source of plant-based estrogens, called phytoestrogens, in surface water.
Wastewater produces electricity and desalinates water
A process that cleans wastewater and generates electricity can also remove 90 percent of salt from brackish water or seawater, according to an international team of researchers from China and the U.S.
Purer water made possible by Sandia advance
By substituting a single atom in a molecule widely used to purify water, researchers at Sandia National Laboratories have created a far more effective decontaminant with a shelf life superior to products currently on the market.
Wastewater used to map illicit drug use
A team of researchers has mapped patterns of illicit drug use across the state of Oregon using a method of sampling municipal wastewater before it is treated.
More Wastewater Current Events and Wastewater News Articles
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Wastewater Engineering: Treatment and Reuse by George Tchobanoglous (Author), H. David Stensel (Author), Franklin L. Burton (Editor) Wastewater Engineering: Treatment and Reuse, 4/e is a thorough update of McGraw-Hill's authoritative book on wastewater treatment. No environmental engineering professional or civil or and environmental engineering major should be without a copy of this book- tt describes the technological and regulatory changes that have occurred over the last ten years in this discipline, including: improved techniques for the characterization of wastewaters; improved fundamental understanding of many of the existing unit operations and processes used for wastewater treatment, especially those processes used for the biological removal of nutrients; greater implementation of several newer treatment technologies (e.g., UV disinfection, membrane filtration, and heat drying); greater concern for the long... |
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Water and Wastewater Calculations Manual, 2nd Ed. by Shun Lin (Author), C. Lee (Author) Quick Access to the Latest Calculations and Examples for Solving All Types of Water and Wastewater Problems! The Second Edition of Water and Wastewater Calculations Manual provides step-by-step calculations for solving a myriad of water and wastewater problems. Designed for quick-and-easy access to information, this revised and updated Second Edition contains over 110 detailed illustrations and new material throughout. Written by the internationally renowned Shun Dar Lin, this expert resource offers techniques and examples in all sectors of water and wastewater treatment. Using both SI and US customary units, the Second Edition of Water and Wastewater Calculations Manual features: Coverage of stream sanitation, lake and impoundment... |
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Water and Wastewater Treatment: A Guide for the Nonengineering Professionals by Joanne E. Drinan (Author) This volume is the only resource that describes and explains in simple, non-mathematical terms the unit processes used to treat both drinking water and wastewater. Designed to meet the information needs of professionals without an engineering background, the text presents each unit process, states what function(s) it performs, illustrates what equipment it uses, and explains what its role is in the process of purifying or cleaning water. In addition, the book places water treatment technologies in the context of overall plant operation. In addition, it explains related topics such as plant management and environmental regulations. |
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Water & Wastewater Treatment by Faversham House Group Ltd Water & Waste Treatment is an independent monthly magazine published for professionals in the water and wastewater industry. It includes articles and commentary on state of the water industry, along with a mix of news, case studies, new products and technology, special reports, and features. | |
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Domestic Wastewater Treatment: Engineering and Design: Mobilization Construction: USACE Engineer Manual on CD-ROM by WVNAVY This manual prescribes general information and design criteria for guidance in the planning and design of domestic wastewater treatment plants at Army mobilization facilities. Chapters include: 1 General, 2 - Considerations for Site Selection, 3 - Treatment Requirements, 4 - Basic Design Considerations, 5 - Selection of Treatment Processes, 6 - Flow-measuring Devices, 7 Screening, 8 Sedimentation, 9 - Waste Stabilization Ponds, 10 - Trickling Filter Plants, 11 - Activated Sludge Plants, 12 - Sludge Handling, Treatment, and Disposal, 13 Disinfection, 14 - Small Sewage Treatment Facilities, 15 - Safety Features, A - Sample Problems, B - Oxygen Solubility Table, C - References |
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Hoodie Mens Dark Silver " Water And Wastewater Plant Operator's rule " Occupations Large by TopExpressions |
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Water and Wastewater Technology (6th Edition) by Mark J. Hammer Sr. (Author), Mark J. Hammer Jr. (Author) A best-seller in the field of water and wastewater engineering and technology, this book provides the fundamental principles and management practices in water technology. All major systems and operations are covered concisely yet comprehensively. Topics include: water processing, water distribution, wastewater collection, wastewater treatment, sludge processing, and water reuse. Introductory chapters provide a review of pertinent aspects of chemistry, biology, hydraulics and hydrology, and water quality. For those individuals in the field of sanitary technology and engineering as well as those interested in the operation and maintenance of water and wastewater facilities. |
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Little Giant WCR-9SS Wastewater Collection & Removal System (509082) by Little Giant Little Giant WCR-9SS Wastewater Collection & Removal System (509082)Wastewater Collection & Removal SystemThe new Little Giant; WCR-9S wastewater system is designed for collection and removal of water run-off from low-lying problem areas. Available pre-packaged with steel cover; discharge and electrical connections made through the side of basin, allowing top of basin to be flush with ground level. No digging is required for servicing the system. Unit is equipped with schedule 40 PVC discharge piping with a pre-drilled air-bleed hole and a full flow check valve with stainless steel clamp bands. The unit is also equipped with a 2" bulkhead fitting to easily route power cords out of basin. Comes equipped with a 4/10 HP 9S Series wastewater and sewage ejector pumpLittle Giant WCR-9SS... |
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Community Onsite Options: Wastewater Management in the New Millennium Also With: National Small Flows Clearinghouse (Primary Contributor) This video introduces community leaders, local officials, and interested audiences to the concepts, ideas, and processes of community/onsite/decentralized management systems (OMSs), including individual onsite systems and cluster systems. Alternatives to the conventional septic system are discussed, including mounds, sand filters, and aerobic treatment units. The video highlights several communities across the U.S. that effectively operate unique OMS approaches. Emphasis is placed on system suitability, viability, maintenance, and monitoring, as well as cost-effectiveness. This informational video is very useful to public health professionals, engineers, researchers, local officials, the general public, planners, managers, public health officials, finance officers, and... |
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"How It's Made: Hockey Gloves, Snack Cakes, Remolded Tires, and Wastewater Treatment DVD" by Discovery Education Have you ever wondered how things are made? Find out how the everyday objects people use become the things they are. |
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