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Author : Gregory D. Reed
Publisher : Unknown
Page : 68 pages
File Size : 54,6 Mb
Release : 1977
Category : Contamination (Technology).
ISBN : UCR:31210012771778
Author : Anonim
Publisher : Unknown
Page : 1198 pages
File Size : 40,5 Mb
Release : 1988
Category : Hydrology
ISBN : UOM:39015034738271
Author : Enos L. Stover,Peter J. Marks
Publisher : Unknown
Page : 56 pages
File Size : 40,8 Mb
Release : 1976
Category : Calibration
ISBN : UCR:31210012654743
Author : Robert A. Baker
Publisher : CRC Press
Page : 564 pages
File Size : 45,5 Mb
Release : 1991-08-19
Category : Technology & Engineering
ISBN : 0873715284
The fate and transport of natural and anthropogenic sediment-borne organic contaminants is a critical environmental issue and complex processes are involved that until now have been poorly defined. Organic Substances and Sediments in Water is a three-volume book that provides the best information available regarding the many interdisciplinary factors affecting organic substances associated with particulates in water. Topics discussed include absorption and transport of contaminants associated with particles; interfacial processes affecting fate and transport of organic substances associated with particles; the release of contaminants in receiving water bodies; water treatment; the role of biological factors in the fate and transport of organic contaminants in aqueous systems; development of biotransformation in natural and anthropogenic systems; the use of organic contaminant and sediment chemicals; biological and physical data to refine models to be used by resource managers; and chemical and biological processes that affect the fate and transport of organic constituents and determine degradation of contaminants and uptake in plants. This will be an important reference for environmental chemists, environmental engineers, environmental biologists, water treatment and natural system modelers, and soils scientists.
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 1584 pages
File Size : 40,5 Mb
Release : 1983
Category : Electronic
ISBN : UCBK:C025690119
Author : United States. Environmental Protection Agency
Publisher : Unknown
Page : 1760 pages
File Size : 53,5 Mb
Release : 1983
Category : Electronic
ISBN : UCBK:C047942923
Author : Lawrence H. Keith
Publisher : CRC Press
Page : 1740 pages
File Size : 46,9 Mb
Release : 1996-09-26
Category : Science
ISBN : 1420050613
The popular first edition of this book contained approximately 600 analyte/method summaries. This new edition contains twice as many new EPA-approved methods for testing and analyzing industrial chemicals, pesticides, herbicides, dioxins, and PCBs and is a printed version of the EPA's Sampling and Analysis Methods Database. Each analyte/method summary contains all of the information required to stand alone as a reference. Thus, in addition to a brief summary of each method, descriptions include required instrumentation, interferences, sampling containers, preservation techniques, maximum holding times, detection levels, accuracy, precision, quality control requirements, EPA reference, and, when available, EPA contacts with phone numbers. Each summarized report is a "stand-alone" document.
Author : K. G. Robinson
Publisher : IWA Publishing
Page : 220 pages
File Size : 43,5 Mb
Release : 2004-01-01
Category : Science
ISBN : 9781843396970
This research attempts to evaluate nitrification treatment performance in combined carbon/nitrogen municipal wastewater reactors using traditional physical/chemical methods and modern molecular techniques. Bench scale activated sludge reactors were operated at different SRTs under varying DO levels and temperatures over a 21-month period. Real-time PCR assays were used to determine cell concentrations of total bacterial 16S rDNA, a gross measure of biomass content, the amoA gene, a measure of ammonia-oxidizing bacteria (AOB), and the Nitrospira 16S rDNA gene, a measure of nitrite-oxidizing bacteria (NOB). As expected, gravimetric biomass and total bacterial 16S rDNA levels increased with increasing SRT. Ammonia oxidation rates and N. oligotropha-type AOB concentrations did not follow similar trends with respect to changes in SRT, temperature, and DO nor were they highly correlated. The concentration of available nitrite and SRT were positively correlated with Nitrospira cell densities, while DO concentration and temperature were negatively correlated with NOB levels. The percentage of the total population comprised of AOB and NOB obtained with the real-time PCR assays were compared to predicted values estimated from design equations using typical kinetic parameters. While the percentages of NOB measured using the real-time PCR assay corresponded very well with the predicted values, the measured percentages of AOB were much lower than those estimated from the design equations, suggesting that N. oligotropha-type AOB were not the dominant ammonia-oxidizing species in these reactors. This publication can be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 992 pages
File Size : 51,8 Mb
Release : 1977
Category : Government publications
ISBN : UCR:31210024274522
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author : Anonim
Publisher : Unknown
Page : 650 pages
File Size : 51,7 Mb
Release : 1988
Category : Water
ISBN : PSU:000068689056
Author : Anonim
Publisher : Unknown
Page : 550 pages
File Size : 55,8 Mb
Release : 1997
Category : Michigan, Lake
ISBN : UCR:31210018629145
Author : Paul D. Capel,Steven J. Larson
Publisher : Unknown
Page : 112 pages
File Size : 42,5 Mb
Release : 1996
Category : Water
ISBN : UCR:31210025352319
Author : Maria Csuros
Publisher : CRC Press
Page : 333 pages
File Size : 41,6 Mb
Release : 2018-02-06
Category : Science
ISBN : 9781351450140
This book provides the basic knowledge in sample collection, field and laboratory quality assurance/quality control (QA/QC), sample custody, regulations and standards of environmental pollutants. The text covers sample collection, preservation, handling, detailed field activities, and sample custody. It provides an overview of the occurrence, source, and fate of toxic pollutants, as well as their control by regulations and standards. Environmental Sampling and Analysis for Technicians is an excellent introductory text for laboratory training classes, namely those teaching inorganic nonmetals, metals, and trace organic pollutants and their detection in environmental samples.
Author : United States. National Bureau of Standards
Publisher : Unknown
Page : 744 pages
File Size : 53,5 Mb
Release : 1976
Category : Washington (D.C.)
ISBN : UCSD:31822042925271
Author : United States. National Bureau of Standards
Publisher : Unknown
Page : 748 pages
File Size : 50,9 Mb
Release : 1977
Category : Electronic
ISBN : UCAL:B4280892