Author: Publisher:
ISBN:
Category : Water
Languages : en
Pages : 167
Book Description
Innovative Alternatives to Minimize Arsenic, Perchlorate, and Nitrate Residuals
Author: Innovative Alternatives to Minimize Arsenic, Perchlorate, and Nitrate Residuals
Author: J. MinPublisher: IWA Publishing
ISBN: 9781843399346
Category : Science
Languages : en
Pages : 200
Book Description
Potentially high levels of arsenic, nitrate, and perchlorate are found in water sources throughout the United States. Most treatment technologies for removing these contaminants produce concentrated waste that requires special handling and disposal. Disposal options for these wastes are often limited by local regulations and other site-specific restrictions. Presently, the disposal issue is limiting certain treatment technologies for arsenic, perchlorate, or nitrate. Therefore, innovative alternatives for managing residuals discharge and disposal are needed. The objectives of this project were to develop and validate innovative processes to minimize the production of residuals from treatment processes used to remove arsenic, perchlorate, or nitrate from drinking water.
Water Treatment Plant Design, Fifth Edition
Author: American Water Works AssociationPublisher: McGraw Hill Professional
ISBN: 0071745734
Category : Technology & Engineering
Languages : en
Pages : 1377
Book Description
THE MOST TRUSTED AND UP-TO-DATE WATER TREATMENT PLANT DESIGN REFERENCE Thoroughly revised to cover the latest standards, technologies, regulations, and sustainability practices, Water Treatment Plant Design, Fifth Edition, offers comprehensive guidance on modernizing existing water treatment facilities and planning new ones. This authoritative resource discusses the organization and execution of a water treatment plant project--from planning and permitting through design, construction, and start-up. A joint publication of the American Water Works Association (AWWA) and the American Society of Civil Engineers (ASCE), this defi nitive guide contains contributions from renowned international experts. COVERAGE INCLUDES: Sustainability Master planning and treatment process selection Design and construction Intake facilities Aeration and air stripping Mixing, coagulation, and flocculation Clarification Slow sand and diatomaceous earth filtration Oxidation and disinfection Ultraviolet disinfection Precipitative softening Membrane processes Activated carbon adsorption Biological processes Process residuals Pilot plant design and construction Chemical systems Hydraulics Site selection and plant arrangement Environmental impacts and project permitting Architectural design HVAC, plumbing, and air supply systems Structural design Process instrumentation and controls Electrical systems Design reliability features Operations and maintenance considerations during plant design Staff training and plant start-up Water system security and preparedness Construction cost estimating
Monitored Natural Attenuation of Inorganic Contaminants in Ground Water
Author: Publisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 124
Book Description
V.3 ... consists of individual chapters that describe 1) the conceptual background for radionuclides, including tritium, radon, strontium, technetium, uranium, iodine, radium, thorium, cesium, plutonium-americium and 2) data requirements to be met during site characterization.
Perchlorate in the Environment
Author: Edward Todd UrbanskyPublisher: Springer Science & Business Media
ISBN: 1461543037
Category : Science
Languages : en
Pages : 299
Book Description
Based on a symposium sponsored by the Environmental Division of the American Chemical Society, Perchlorate in the Environment is the first comprehensive book to address perchlorate as a potable water contaminant. The two main topics are: analytical chemistry (focusing on ion chromatography and electrospray ionization mass spectrometry), and treatment or remediation. Also included are topics such as ion exchange, phytoremediation, bacterial reduction of perchlorate, bioreactors, and in situ bioremediation. To provide complete coverage, background chapters on fundamental chemistry, toxicology, and reulatory issues are also included. The authors are environmental consultants, government researchers, industry experts, and university professors from a wide array of disciplines.
Identifying Future Drinking Water Contaminants
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309172969
Category : Nature
Languages : en
Pages : 276
Book Description
With an increasing population, use of new and diverse chemicals that can enter the water supply, and emergence of new microbial pathogens, the U.S. federal government is faced with a regulatory dilemma: Where should it focus its attention and limited resources to ensure safe drinking water supplies for the future? Identifying Future Drinking Water Contaminants is based on a 1998 workshop on emerging drinking water contaminants. It includes a dozen papers that were presented on new and emerging microbiological and chemical drinking water contaminants, associated analytical and water treatment methods for their detection and removal, and existing and proposed environmental databases to assist in their proactive identification and regulation. The papers are preceded by a conceptual approach and related recommendations to EPA for the periodic creation of future Drinking Water Contaminant Candidate Lists (CCLsâ€"produced every five yearsâ€"include currently unregulated chemical and microbiological substances that are known or anticipated to occur in public water systems and that may pose health risks).
Reducing Environmental Cancer Risk
Author: Suzanne H. ReubenPublisher: DIANE Publishing
ISBN: 1437934218
Category : Health & Fitness
Languages : en
Pages : 240
Book Description
Though overall cancer incidence and mortality have continued to decline in recent years, cancer continues to devastate the lives of far too many Americans. In 2009 alone, 1.5 million American men, women, and children were diagnosed with cancer, and 562,000 died from the disease. There is a growing body of evidence linking environmental exposures to cancer. The Pres. Cancer Panel dedicated its 2008¿2009 activities to examining the impact of environmental factors on cancer risk. The Panel considered industrial, occupational, and agricultural exposures as well as exposures related to medical practice, military activities, modern lifestyles, and natural sources. This report presents the Panel¿s recommend. to mitigate or eliminate these barriers. Illus.
Perchlorate
Author: Baohua GuPublisher: Springer Science & Business Media
ISBN: 0387311130
Category : Technology & Engineering
Languages : en
Pages : 413
Book Description
Provides a detailed description of perchlorate chemistry and recent advances in innovative remediation technologies for perchlorate contamination and their pros and cons Additionally, the first book to describe the natural occurrence of perchlorate and its unique isotopic signatures for environmental forensics and its detection in the environment, particularly the real-time analysis using surface enhanced Raman spectroscopy
Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309278139
Category : Nature
Languages : en
Pages : 423
Book Description
Across the United States, thousands of hazardous waste sites are contaminated with chemicals that prevent the underlying groundwater from meeting drinking water standards. These include Superfund sites and other facilities that handle and dispose of hazardous waste, active and inactive dry cleaners, and leaking underground storage tanks; many are at federal facilities such as military installations. While many sites have been closed over the past 30 years through cleanup programs run by the U.S. Department of Defense, the U.S. EPA, and other state and federal agencies, the remaining caseload is much more difficult to address because the nature of the contamination and subsurface conditions make it difficult to achieve drinking water standards in the affected groundwater. Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites estimates that at least 126,000 sites across the U.S. still have contaminated groundwater, and their closure is expected to cost at least $110 billion to $127 billion. About 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations. At sites where contaminant concentrations have plateaued at levels above cleanup goals despite active efforts, the report recommends evaluating whether the sites should transition to long-term management, where risks would be monitored and harmful exposures prevented, but at reduced costs.
Earth Materials and Health
Author: National Research CouncilPublisher: National Academies Press
ISBN: 030910470X
Category : Technology & Engineering
Languages : en
Pages : 189
Book Description
A range of natural earth materials, like arsenic or fluoride, have long been linked to significant human health effects. Improved understanding of the pervasive and complex interactions between earth materials and human health will require creative collaborations between earth scientists and public health professionals. At the request of the National Science Foundation, U.S. Geological Survey, and National Aeronautics and Space Administration, this National Research Council book assesses the current state of knowledge at the interface between the earth sciences and public health disciplines. The book identifies high-priority areas for collaborative research, including understanding the transport and bioavailability of potentially hazardous earth materials, using risk-based scenarios to mitigate the public health effects of natural hazards under current and future climate regimes, and understanding the health risks that result from disturbance of earth systems. Geospatial information - geological maps for earth scientists and epidemiological data for public health professionals - is identified as one of the essential integrative tools that is fundamental to the activities of both communities. The book also calls for increased data sharing between agencies to promote interdisciplinary research without compromising privacy.