Science Current Events | Science News | Brightsurf.com
 

EARTH: Managing the seismic risk posed by wastewater disposal

April 19, 2012
Alexandria, VA - The debate over hydraulic fracturing has recently focused on the rise in seismicity throughout the primarily stable interior of the United States. These intraplate regions, though not unfamiliar with earthquakes, have been experiencing an increased amount of seismic activity in the last decade. This unusual increase is likely to be caused in part by wastewater disposal practices related to natural gas production. With such a sensitive issue it is important to keep the facts in perspective: No earthquake triggered by fluid injection has ever caused serious injury or significant damage. Moreover, approximately 140,000 wastewater disposal wells have been operating safely and without incident in the U.S. for many decades. Nevertheless, minor seismicity can occur, and it is important to recognize that with proper planning, monitoring and response the occurrence of small-to-moderate earthquakes associated with fluid injection can be reduced and the risks associated with such events effectively managed.

What steps can we take in order to safely practice wastewater injection? In the April issue of EARTH Magazine, Mark D. Zoback, professor of geophysics at Stanford University puts forward five steps that can be taken to reduce the probability of triggering seismicity associated with fluid injection. Zoback argues that through proper study and planning prior to injection, careful monitoring in areas where seismicity might be triggered, and careful training of operators and regulators will help to manage the seismic risk posed by wastewater disposal. To learn more, read the full article online at http://www.earthmagazine.org/article/managing-seismic-risk-posed-wastewater-disposal

Read this story and more in the April issue of EARTH magazine, available online at http://www.earthmagazine.org/. Explore the archaeology, volcanoes and hot springs of the Northern Atacama Desert; Probe the limits of the solar system with Voyager 1; and, unearth the mechanics of crustal thinning.

American Geological Institute


Related Wastewater Current Events and Wastewater News Articles


Malaysia's 'Smart Villages' and 9 other proven ideas for sustainable development
As nations zero in on the UN's post-2015 global Sustainable Development Goals, innovations being successfully pioneered and demonstrated in Malaysia offer several proven tactical ideas for improving the world, says an influential international sustainable development networking organization.

Stanford-led study assesses the environmental costs and benefits of fracking
A strange thing happened on the way to dealing with climate change: Advances in hydraulic fracturing put trillions of dollars' worth of previously unreachable oil and natural gas within humanity's grasp.

Study puts some mussels into Bay restoration
Restoring oysters-and their ability to filter large volumes of water-is widely seen as a key way to improve the health of Chesapeake Bay.

Shift in Arabian Sea Plankton May Threaten Fisheries
A growing "dead zone" in the middle of the Arabian Sea has allowed plankton uniquely suited to low- oxygen water to take over the base of the food chain. Their rise to dominance over the last decade could be disastrous for the predator fish that sustain 120 million people living on the sea's edge.

Exporting US coal to Asia could drop emissions 21 percent
Under the right scenario, exporting U.S. coal to power plants in South Korea could lead to a 21 percent drop in greenhouse gas emissions compared to burning the fossil fuel at plants in the United States, according to a new Duke University-led study.

Drilling in the dark: Biological impacts of fracking still largely unknown
As production of shale gas soars, the industry's effects on nature and wildlife remain largely unexplored, according to a study by a group of conservation biologists published in Frontiers in Ecology and the Environment on August 1.

'Fracking' in the dark: Biological fallout of shale-gas production still largely unknown
In the United States, natural-gas production from shale rock has increased by more than 700 percent since 2007. Yet scientists still do not fully understand the industry's effects on nature and wildlife, according to a report in the journal Frontiers in Ecology and the Environment.

New water balance calculation for the Dead Sea
The drinking water resources on the eastern, Jordanian side of the Dead Sea could decline severe as a result of climate change than those on the western, Israeli and Palestinian side.

Hormone-disrupting activity of fracking chemicals worse than initially found
Many chemicals used in hydraulic fracturing, or fracking, can disrupt not only the human body's reproductive hormones but also the glucocorticoid and thyroid hormone receptors, which are necessary to maintain good health, a new study finds.

Chemical pollution of European waters is stronger than anticipated
Substantial improvements in freshwater quality by 2015 have been a declared objective of the EU member states, manifesting itself by the requirements of the Water Framework Directive (WFD).
More Wastewater Current Events and Wastewater News Articles

Wastewater Engineering: Treatment and Resource Recovery

Wastewater Engineering: Treatment and Resource Recovery
by Inc. Metcalf & Eddy (Author), George Tchobanoglous (Author), H. David Stensel (Author), Ryujiro Tsuchihashi (Author), Franklin Burton (Author)


Wastewater Engineering: Treatment and Resource Recovery, 5/e is a thorough update of McGraw-Hill's authoritative book on wastewater treatment. No environmental engineering professional or civil or environmental engineering major should be without a copy of this book - describing the rapidly evolving field of wastewater engineering technological and regulatory changes that have occurred over the last ten years in this discipline, including: a new view of a wastewater as a source of energy, nutrients and potable water; more stringent discharge requirements related to nitrogen and phosphorus; enhanced understanding of the fundamental microbiology and physiology of the microorganisms responsible for the removel of nitrogen and phosphorus and other constituents; an appreciation of the...

Water and Wastewater Engineering

Water and Wastewater Engineering
by Mackenzie Davis (Author)


An In-Depth Guide to Water and Wastewater Engineering This authoritative volume offers comprehensive coverage of the design and construction of municipal water and wastewater facilities. The book addresses water treatment in detail, following the flow of water through the unit processes and coagulation, flocculation, softening, sedimentation, filtration, disinfection, and residuals management. Each stage of wastewater treatment--preliminary, secondary, and tertiary--is examined along with residuals management. Water and Wastewater Engineering contains more than 100 example problems, 500 end-of-chapter problems, and 300 illustrations. Safety issues and operation and maintenance procedures are also discussed in this definitive resource. Coverage includes: Intake structures and wells...

Water and Wastewater Technology (7th Edition)

Water and Wastewater Technology (7th Edition)
by Mark J. Hammer Sr. (Author), Mark J. Hammer Jr. (Author)


The new seventh edition of Water and Wastewater Technology continues its tradition of coverage water processing principles and modern management practices, but now integrates a new emphasis on sustainability throughout.   Comprehensive coverage of topics such as: Water processing Water distribution Wastewater collection Conventional and advanced wastewater treatment Sludge processing

Water and Wastewater Treatment: A Guide for the Nonengineering Professional, Second Edition

Water and Wastewater Treatment: A Guide for the Nonengineering Professional, Second Edition
by Joanne E. Drinan (Author), Frank Spellman (Author)


Lauded for its engaging, highly readable style, the best-selling first edition became the premier guide for nonengineers involved in water and wastewater treatment operations. Water and Wastewater Treatment: A Guide for the Nonengineering Professional, Second Edition continues to provide a simple, nonmathematical account of the unit processes used to treat both drinking water and wastewater. Completely revised and expanded, this second edition adds new material on technological advances, regulatory requirements, and other current issues facing the water and wastewater industries. Using step-by-step, jargon-free language, the authors present all the basic unit processes involved in drinking water and wastewater treatment. They describe each unit process, the function of the process in...

Wastewater Operator Certification Study Guide

Wastewater Operator Certification Study Guide
by John Giorgi (Author)


Pass your wastewater certification exam the first time! This study guide is is specially developed to give wastewater operators practice answering questions that are similar in format and content to the questions that appear on certification exams.

Sample questions are provided for Classes I, II, III, and IV wastewater operator certification exams, so you can study the questions that are specific to your grade level. Answers and references are included for questions. Math questions include the method to solve.

Lumpy Water Math: Math for Wastewater Operators

Lumpy Water Math: Math for Wastewater Operators
by Jerry Grant (Author)


Lumpy Water Math was written to help wastewater treatment plant operators and collection system operators with the basic problem solving ability needed to evaluate and control these systems. This understanding will help the operator use math in day-to day operation as well as help prepare for certification exams. The math will be helpful to water supply and distribution system operators as the math used is basically the same. The instruction begins with basic instruction in solving for areas and volumes, detention time, flow calculations, hydraulic and organic loading and progresses to specialty areas such as activated sludge and laboratory calculations. The book includes tips for making problem solving and use of calculators easier. Typical state design standards are listed so that...

Biological Wastewater Treatment, Third Edition

Biological Wastewater Treatment, Third Edition
by C. P. Leslie Grady Jr. (Author), Glen T. Daigger (Author), Nancy G. Love (Author), Carlos D. M. Filipe (Author)


Following in the footsteps of previous highly successful and useful editions, Biological Wastewater Treatment, Third Edition presents the theoretical principles and design procedures for biochemical operations used in wastewater treatment processes. It reflects important changes and advancements in the field, such as a revised treatment of the microbiology and kinetics of nutrient removal and an update of the simulation of biological phosphorous removal with a more contemporary model. See what’s new in the Third Edition: A chapter devoted to the description and simulation of anaerobic bioreactors Coverage of applications of submerged attached growth bioreactors Expanded discussion of modeling attached growth systems Increased information on the fate and effects of trace contaminants...

Wastewater Treatment Plant Operations Made Easy: A Practical Guide for Licensure

Wastewater Treatment Plant Operations Made Easy: A Practical Guide for Licensure
by Frank R. Spellman (Author), Joanne Drinan (Author)


A concise guide to wastewater treatment operations for operator training, this book explains all operations clearly and illustrates them through worked examples. Chapter self-tests and comprehensive review exams (answers included) make this volume the perfect, practical guide to preparing for Wastewater Treatment Plant Operations certification or licensing. In addition, it is a valuable resource of information on wastewater treatment, data, operational material, process control procedures and problem solving, safety and health information, new trends in wastewater treatment administration/technology, and numerous sample problem-solving practice sets.

Wastewater Engineering: Treatment and Reuse

Wastewater Engineering: Treatment and Reuse
by George Tchobanoglous (Author), Franklin L. Burton (Author), H. David Stensel (Author)


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...

Wastewater Microbiology

Wastewater Microbiology
by Gabriel Bitton (Author)


Wastewater Microbiology focuses on microbial contaminants found in wastewater, methods of detection for these contaminants, and methods of cleansing water of microbial contamination. This classic reference has now been updated to focus more exclusively on issues particular to wastewater, with new information on fecal contamination and new molecular methods. The book features new methods to determine cell viability/activity in environmental samples; a new section on bacterial spores as indicators; new information covering disinfection byproducts, UV disinfection, and photoreactivation; and much more. A PowerPoint of figures from the book is available at ftp://ftp.wiley.com/public/sci_tech_med/wastewater_microbiology.

© 2014 BrightSurf.com