Estimating Microorganism Densities in Aerosols from Spray Irrigation of Wastewater
Author : John P. Glennon
Publisher :
Page : 42 pages
File Size : 25,91 MB
Release : 1982
Category : Aerosols
ISBN :
Author : John P. Glennon
Publisher :
Page : 42 pages
File Size : 25,91 MB
Release : 1982
Category : Aerosols
ISBN :
Author :
Publisher :
Page : 1054 pages
File Size : 10,31 MB
Release : 1983
Category : Government publications
ISBN :
Author :
Publisher :
Page : 862 pages
File Size : 14,20 MB
Release :
Category : Government publications
ISBN :
Author : United States. Environmental Protection Agency
Publisher :
Page : 1760 pages
File Size : 48,44 MB
Release : 1983
Category :
ISBN :
Author : Howard T. Bausum
Publisher :
Page : 146 pages
File Size : 20,72 MB
Release : 1976
Category : Air
ISBN :
Air sampling equipment was selected and adapted for the study of bacterial aerosols generated through land application of treated wastewater by spray irrigation. Preliminary data were obtained on bacteria present in treated and untreated domestic sewage at Army installations. Data were also obtained on survival of enteric bacteria in laboratory aerosols generated from wastewater at various relative humidities. A field study of 3 weeks duration was undertaken to measure aerosol dissemination of bacteria at a wastewater spray irrigation site at Ft. Huachuca, Az, Aerosol densities for the total aerobic bacteria ranged up to 1630 cu. m. at sampling points nearest the aerosol source. Confirmed coliform bacteria represented about 0.5 percent of the total, and of those nearly half were Klebsiella. Densities were greater under conditions of low wind, atmospheric stability and darkness. A mathematical model predicting downwind aerosol densities was developed, based on the dispersion equation of Pasquill and took into account the parameters of the spray equipment used. The model, in conjunction with fluorescein tracer data, was used in deriving an estimate of the fraction of wastewater entering the aerosol state.
Author :
Publisher :
Page : 42 pages
File Size : 44,64 MB
Release : 1978
Category :
ISBN :
The second phase of a field study to measure microbiological aerosol disemination by the spray irrigation mode of land wastewater application was conducted at Ft. Huachuca, AZ. Chlorinated and unchlorinated secondarily treated wastewaters were sprayed in periods of high and low sunlight intensity, and bacterial and virus aerosols were sampled. Predictions of long distance migration and aerosol dispersal of total aerobic bacteria and enteric virus (utilizing seeded coliphage f2 as a model), were emphasized.
Author :
Publisher :
Page : 1428 pages
File Size : 36,71 MB
Release : 1982
Category : Science
ISBN :
Author : Gerald Berg
Publisher : CRC Press
Page : 242 pages
File Size : 24,15 MB
Release : 2018-01-18
Category : Science
ISBN : 1351082914
This book argues, that without methods, there can be no research. Effective research requires effective methods, not always easy to come by. The development of methods in environmental virology became a focus of growing interest about two decades ago. Progress has been significant since that time in pure experimental systems, where there are no interferences, consistent high recoveries of viruses from environmental waters has been achievable for some time. In the natural environment, however, in relatively clean waters, substances such as humic and fulvic acids interfere with viral recoveries and average recovery rates probably do not reach 20%. With sewage sludges and shellfish, recoveries are undoubtedly much lower. Yet, even relatively low viral recovery rates have made possible the detection of viral hazards in drinking waters. The hazards that exist are undoubtedly much greater than those demonstrated with the relatively inefficient methods inefficient methods developed thus far. Improving methods, as they are developed in the years to come, will undoubtedly bring the true extent of the hazards into better perspective.
Author : Gabriel Bitton
Publisher : John Wiley & Sons
Page : 324 pages
File Size : 31,96 MB
Release : 1997-10-21
Category : Science
ISBN : 9780471139058
Dieses nützliche Handbuch umfaßt über 200 Formeln, die von Umweltingenieuren für Problemlösungen im Bereich biologischer und biochemischer Prozesse in natürlichen und künstlich angelegten Systemen eingesetzt werden. Jeder Problemeintrag erhält eine Definition, eine Formel, Zahlenwerte, die in der Literatur genannt werden, Verweise und entsprechende Tabellen und Diagramme. Umrechnungstabellen finden sich im Anhang. (10/97)
Author : Sherwood C. Reed
Publisher : McGraw Hill Professional
Page : 450 pages
File Size : 44,77 MB
Release : 1998-08
Category : Nature
ISBN : 9780071346627
MANAGE WASTE AT LOWER COST WITH EMERGING NATURAL SYSTEMS Biologically-based waste management systems are emerging as a more reliable, less costly alternative to conventional energy-intensive mechanical process. If you're involved in planning, designing, building, upgrading or operating waste management facilities, Natural Systems for Waste Management and Treatment, Second Edition, by Sherwood C. Reed, Ronald W. Crites, and E. Joe Middlebrooks, can help you quickly evaluate and adopt one or more of these innovative technologies. Complete with performance data plus easy-to-follow design procedures (with example), it gives you a thorough working backgroud in: Wastewater stabilization ponds; Aquatic treatment systems; Feasibility assessment; Land treatment systems; Wetland systems; Site selection; Planning; Sludge management and treatment; On-site wastewater management; Much more.