Download or read book Bacterial Transport in Coarse Soils Beneath On site Wastewater Treatment Systems written by Thomas C. Peterson and published by . This book was released on 1987 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Amendments and Environmental Quality written by Jack E. Rechcigl and published by CRC Press. This book was released on 1995-09-25 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive and balanced overview of soil amendments and their effect on the environment. It encompasses both positive and negative aspects of chemical fertilizers that supply nitrogen, phosphorous, sulfur, lime, micronutrients, and trace metals. Pros and cons are discussed with respect to the optimal and the most environmentally sound use of soil amendments, and guidance is provided on how to minimize the environmental effects of amendments. Natural fertilizers, including manure, sludge, fly ash, phosphogypsum, and byproduct gypsum are also discussed. Alternative agronomic practices and biotechnology that ameliorate or minimize potential adverse effects of fertilizer use are examined in detail. This authoritative and up-to-date treatise is multidisciplinary in nature and international in scope, a powerful reference tool for researchers, a thorough guide for practitioners and policy makers, and an excellent text book for academic courses.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Bulletin written by and published by . This book was released on 1987-11 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Bulletin Colorado Agricultural Experiment Station Colorado Agricultural and Mechanical College written by Colorado Agricultural Experiment Station and published by . This book was released on 1932 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Onsite Wastewater Treatment Systems Manual written by and published by . This book was released on 2002 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This manual contains overview information on treatment technologies, installation practices, and past performance."--Introduction.
Download or read book Technical Bul written by and published by . This book was released on 1986 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On site Wastewater Treatment written by American Society of Agricultural Engineers and published by . This book was released on 1988 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viral and Bacterial Contamination of Groundwater by On site Wastewater Treatment Systems in Sandy Coastal Soils written by Christine L. Moe and published by . This book was released on 1984 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil based Wastewater Treatment written by Jose A. Amador and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our book addresses the needs of practitioners, engineers, scientists, regulators, resource managers, planners, and others with a need to know about septic systems. It arose after discussions about the need for a text that integrated current understanding of the hydrologic, physical, chemical, and biological processes involved in the treatment of wastewater using soil. In our experience, people working with septic systems – ourselves included – have a fragmented understanding of what these systems are, how they function, how wastewater moves through soil, how and which pollutants are removed, and how these systems impact the environment and public health. The relevant information is scattered across disciplines, information sources and audiences. This book is an attempt to collect and integrate this information in one place, and provide a scientific framework for understanding soil-based wastewater treatment.
Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1989 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: June and Dec. issues contain listings of periodicals.
Download or read book Physics of Wastewater Flow and Pathogen Transport Processes from a Soil based At grade Effluent Treatment System and Associated Groundwater Contamination Risks in Alberta Canada written by Amanuel Oqbit Weldeyohannes and published by . This book was released on 2015 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding of wastewater flow and transport processes and treatment effectiveness through the soil-absorption field of soil-based wastewater treatment systems remains a challenge. In addition, Alberta regulators and the on-site wastewater industry wanted to quantify the effectiveness of the new LFH At-grade soil-based wastewater absorption and treatment system design. An extensive field research program was executed at Wetaskiwin Rest Stop, Central region of Alberta, a site that has been receiving secondarly treated and ultraviolet disinfected effluent via pressurized effluent distribution at-grade laterals since 2007. The specific objectives were to investigate: i) hydrologic response to effluent infiltration from at-grade line sources under shallow groundwater conditions, ii) fate and transport of pathogens under boundary conditions typical of on-site water treatment systems (OWTS), and iii) groundwater contamination risks associated with OWTS. Following site characterization, field-scale tracer experiment was conducted using E.coli and Bromide as step and pulse inputs respectively. Groundwater response to effluent infiltration, wastewater plume movement, E.coli and virus concentrations were monitored in nests of monitoring wells over time. Finally, using the field measurements, HYDRUS 2D was used to investigate groundwater contamination risks associated with OWTS. Considering the existing regulatory requirement of 7-day effluent travel depth through the vadose zone that has been established in Alberta, a residence time assumed to be enough for pathogens attenuation in the vadose zone, weekly cycle hydrologic responses were interpreted. Findings indicated: i) significant hydrologic response to effluent infiltration from at-grade line sources at a weekly scale, ii) effluent reaching the groundwater for approximately 15% of the time in the spring and summer periods when effluent loading rate of ≥5 cm3 cm-2 d-1 encountered a groundwater at ≤0.5 m below the ground surface. These conditions also coincided with the significant 7-day cycle of the effluent input function due to traffic on the highway and use of the facilities. The results suggest consideration of both surface effluent loading and regional hydrologic conditions when designing at-grade wastewater treatment systems to minimize potential groundwater contamination risks; iii) the vadose zone of ≥0.88 m thick, the vertical separation between the at-grade lines and the top of the groundwater level, filtered E.coli bacteria that were present in the infiltrating effluent to acceptable levels achieving the 7-day effluent travel depth design criteria, however it didn't perform well for some viruses, and iv) initial groundwater depth from the surface is critical for designing at-grade effluent treatment systems. Under the prevailing site boundary conditions and assuming a homogenous medium, a loading rate up to 15 cm3 cm-2 d-1 poses less threat when the initial depth to groundwater is at ≥2 m. In practical terms therefore, matching effluent loading rate vis-a-vis the effluent receiving site characteristics is critical particularly during the spring snow melt and summer period. In addition to the design criteria of OWTS, inclusion of performance criteria as standard of practices for these systems is suggested. The findings presented in this thesis contribute significantly to the understanding of wastewater flow and transport under boundary conditions typical of OWTS and shallow groundwater conditions.
Download or read book Proceedings written by Robert C. Ward and published by . This book was released on 1986 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Microbiology written by Gabriel Bitton and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 809 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Groundwater Contamination Volume I written by Chester D. Rail and published by CRC Press. This book was released on 2000-04-14 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated and expanded into two volumes, the new edition of Groundwater Contamination explains in a comprehensive way the sources for groundwater contamination, the regulations governing it, and the technologies for abating it. Volume 1 covers all major contaminants and explains the hydrology and data used to determine the extent of pollution.
Download or read book Septic Tank System Effects on Ground Water Quality written by Canter and published by CRC Press. This book was released on 1985-04-01 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable reference delineates the ground water quality concerns associated with the planning and usage of septic tank systems. Septic tank systems represent a significant source of ground water pollution in the United States. Since many existing systems are exceeding their design life by several-fold, the usage of synthetic organic chemicals in the household and for system cleaning is increasing, and larger-scale systems are being designed and used.
Download or read book Transport of Copiotrophic Bacteria in Oligotrophic Coarse Soils written by Thomas C. Peterson and published by . This book was released on 1987 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
