Download or read book River Mixing and Microorganism Survival Slave River N W T written by Gordon Putz and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein involved investigations of the transverse mixing and microorganism survival within the Slave River downstream of Fort Smith, N.W.T. The Fort Smith wastewater treatment and disposal system consists of a three cell lagoon system, followed by a continuous discharge to the Slave River through a submerged near-shore outfall. The study included field bacteriological sampling and tracer tests under open water and ice covered conditions. The purpose of the tracer tests was to provide an accurate measurement of the wastewater mixing (the dilution and distribution) within the river. The tracer data serves as a reference against which the time-dependent survival of microorganisms may be assessed. The mixing studies were conducted using continuous injection of Rhodamine WT fluorescent dye and sampling at several selected cross sections over a 40 km reach of the river. The tracer tests indicated the mixing in the upper portion of the study reach was considerably lower than expected from test results on other natural streams and modelling using reach-averaged geometry, velocity and transverse mixing coefficient would prove unsatisfactory. However, a numerical modelling scheme using local parameters was found satisfactory and used to find local values of the transverse mixing coefficient. Bacteriological sampling and analysis for total and fecal coliforms were conducted for each sampling station. After accounting for the physical mixing the limited data indicated a barely discernable microorganism die-off rate within the study reach under ice cover conditions. During the summer the high efficiency of treatment within the lagoon system reduced indicator concentrations in the river to levels which prevented any evaluation of the die-off rate. The numerical model for the mixing was adapted to allow prediction of the concentration of microorganisms within the wastewater plume for various decay rates.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 28 (thesis year 1 983) a total of 10,661 theses titles from 26 Canadian and 197 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 28 reports theses submitted in-1983, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1985 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Specialty Conference on the Northern Community written by Ted S. Vinson and published by New York : American Society of Civil Engineers. This book was released on 1981 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers seven areas related to engineering: planning and development; physical and social environment; transportation, ports and harbors; architecture, structures and construction; wastewater treatment and solid waste management; water resources; and the freezing, frozen, thawing ground environment.
Download or read book Canadian Journal of Civil Engineering written by and published by . This book was released on 1984 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arctic Water Pollution Research written by W. A. Bridgeo and published by Oxford ; Toronto : Pergamon. This book was released on 1986 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comptes Rendus written by International Association for Hydraulic Research. Congress and published by . This book was released on 1985 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Canadian Society for Civil Engineering written by Canadian Society for Civil Engineering. Conference and published by . This book was released on 1982 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Slave River Environmental Quality Monitoring Program 1998 to 1994 written by Dennis J. Gregor and published by . This book was released on 1997 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by Susan E. Jasper and published by . This book was released on 1985 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Symposium on Ice Qu bec Canada July 27 31 1981 written by and published by . This book was released on 1981 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Drinking Water Quality in the Northern River Basins Study Area written by Tanya Faye Armstrong and published by . This book was released on 1996 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NTBS was designed to address the ecological concerns about pulp mill expansion, and to increase scientific knowledge about environmental conditions [ecology, ecosystem sustainability, water pollution and control, habitat, effect on fish and fishing, etc.] in the major river systems of the north. The study's objectives were to gather and interpret sound scientific information about the basins, develop appropriate recommendations for basin management, and communicate effectively with the public. The government response report confirms the governments' commitment to ecosystem sustainability and to pollution control in northern rivers. First Nations and Metis aboriginal [native] peoples contributed significantly to the NRBS.
Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112050443578 and Others written by and published by . This book was released on 2013 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography on Snow Ice and Frozen Ground with Abstracts written by and published by . This book was released on 1983 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Threats to Health written by Institute of Medicine and published by National Academies Press. This book was released on 2003-08-25 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infectious diseases are a global hazard that puts every nation and every person at risk. The recent SARS outbreak is a prime example. Knowing neither geographic nor political borders, often arriving silently and lethally, microbial pathogens constitute a grave threat to the health of humans. Indeed, a majority of countries recently identified the spread of infectious disease as the greatest global problem they confront. Throughout history, humans have struggled to control both the causes and consequences of infectious diseases and we will continue to do so into the foreseeable future. Following up on a high-profile 1992 report from the Institute of Medicine, Microbial Threats to Health examines the current state of knowledge and policy pertaining to emerging and re-emerging infectious diseases from around the globe. It examines the spectrum of microbial threats, factors in disease emergence, and the ultimate capacity of the United States to meet the challenges posed by microbial threats to human health. From the impact of war or technology on disease emergence to the development of enhanced disease surveillance and vaccine strategies, Microbial Threats to Health contains valuable information for researchers, students, health care providers, policymakers, public health officials. and the interested public.
Download or read book Emerging Infections written by Committee on Emerging Microbial Threats to Health and published by National Academies. This book was released on 1992-01-01 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of HIV disease and AIDS, the reemergence of tuberculosis, and the increased opportunity for disease spread through international travel demonstrate the critical importance of global vigilance for infectious diseases. This volume highlights risk factors for the emergence of microbial threats to health, warns against complacency in public health, and promotes early prevention as a cost-effective and crucial strategy for maintaining public health in the United States and worldwide. The volume identifies infectious disease threats posed by bacteria and viruses, as well as protozoans, helminths, and fungi. Rich in information, it includes a historical perspective on infectious disease, with focuses on Lyme disease, peptic ulcer, malaria, dengue, and recent increases in tuberculosis. The panel discusses how "new" diseases arise and how "old" ones resurge and considers the roles of human demographics and behavior, technology and industry, economic development and land use, international travel and commerce, microbial adaptation and change, and breakdown of public health measures in changing patterns of infectious disease. Also included are discussions and recommendations on disease surveillance; vaccine, drug, and pesticide development; vector control; public education and behavioral change; research and training; and strengthening of the U.S. public health system. This volume will be of immediate interest to scientists specializing in all areas of infectious dieseases and microbiology, healthy policy specialists, public health officials, physicians, and medical faculty and students, as well as anyone interested in how their health can be threatened by infectious diseases.
