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Rozprawy doktorskie na temat „On-site wastewater systems”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 20 lutego 2023

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Sprawdź 28 najlepszych rozpraw doktorskich naukowych na temat „On-site wastewater systems”.

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1

Hassinger, Elaine, and Jack Watson. "Mound Systems: Alternative On-site Wastewater Treatment." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/146416.

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2 pp.<br>The conventional on-site household wastewater treatment system is known as the septic tank and absorption (leach) field. Local soil conditions; type, depth, texture and permeability all contribute to how well wastewater is treated as it moves toward groundwater. Soil conditions in parts of Arizona are not suitable for absorption fields, so alternative disposal systems are necessary. This article provides information on alternative disposal systems, the septic tank-mound system, and includes the description of the system, its background, where it should be used, and the cost and time c

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Peterson, Craig E. "On-site wastewater treatment and disposal systems on reclaimed mined land." Thesis, Virginia Tech, 1991. http://hdl.handle.net/10919/41708.

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The development of southwest Virginia’s coal mining areas is severely hampered by a lack of building sites and waste disposal facilities. New technologies to reclaim mined lands have the capacity to produce large level expanses of land suitable for building sites by using the minespoil to reshape the land contours. Because these areas are generally too remote for centralized sewer to be economically feasible, the problem of waste disposal remains. Also, the current Virginia Department of Health regulations forbid placement of on-site waste water treatment and dispsoal systems (OSWTDS) in any f

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Shubail, Hani Yahya Ali. "Assessment of on-site wastewater treatment systems in unsewered communities in Jordan." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284461.

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Centralized wastewater treatment systems need substantial funds besides high-cost operation and maintenance programs, which could be considered unsuitable for low-income developing countries. As a solution, it becomes the trend towards on-site wastewater treatment systems (OWTs) due to its cost-effectiveness and flexibility of implementation and management. However, the keenness to implement these systems appropriately and monitor them continually is crucial to ensure that they do not impact the surrounding environment and human health. Constructed wetland is one of the on-site wastewater trea

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4

Geary, Phillip M., University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "On-site system effluent source tracking using geochemical and microbial tracers in a coastal catchment." THESIS_CSTE_SFH_Geary_P.xml, 2004. http://handle.uws.edu.au:8081/1959.7/566.

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The principal aims of this thesis were to examine whether there were hydraulic links between individual on-site wastewater systems in sandy soils at Salt Ash and the Tilgerry Creek estuary near Port Stephens, New South Wales, and whether the chemical and microbiological contaminants from on-site systems could reach surface and groundwaters, and possibly lead to impacts on estuarine oyster growing waters. The research outcomes are contained within the thesis and in four refereed papers presented at conferences, and which have been subsequently published, or are in press. Copies of each of these

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5

Carroll, Steven Paige. "Risk-based approach to on-site wastewater treatment system siting design and management." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16116/1/Steven_Carroll_Thesis.pdf.

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The use of on-site wastewater treatment systems (OWTS) for the treatment and dispersal of domestic effluent is common in urban fringe areas which are not serviced by centralised wastewater collection systems. However, due to inappropriate siting and soil characteristics, the failure of these systems has become a common scenario. The current standards and guidelines adopted by many local authorities for assessing suitable site and soil conditions for OWTS are increasingly coming under scrutiny due to the public health and environmental impacts caused by poorly performing systems, in particular

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6

Carroll, Steven Paige. "Risk-Based Approach to On-site Wastewater Treatment System Siting Design and Management." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16116/.

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The use of on-site wastewater treatment systems (OWTS) for the treatment and dispersal of domestic effluent is common in urban fringe areas which are not serviced by centralised wastewater collection systems. However, due to inappropriate siting and soil characteristics, the failure of these systems has become a common scenario. The current standards and guidelines adopted by many local authorities for assessing suitable site and soil conditions for OWTS are increasingly coming under scrutiny due to the public health and environmental impacts caused by poorly performing systems, in particular

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7

Tjernström, Linnéa. "Function of soil-based on-site wastewater treatment systems - Biological and chemical treatment capacity." Thesis, KTH, Mark- och vattenteknik (flyttat 20130630), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210716.

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On-site wastewater treatment systems are among the main Swedish anthropogenic sources of nutrients causing euthropication of the Baltic Sea. Among on-site systems in Sweden almost half have septic tank treatment followed by a soil-based system, in which the wastewater is treated through soil filtration. In this study a soil based technique for on-site wastewater treatment is studied where wastewater is filtered through a sand filter. Composite samples of influent and effluent at two sand filters in the area of Stockholm are sampled to determine their chemical and biological function and to com

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8

Ringler, Joseph William. "MONITORING THE HYDROLOGY OF SOILS FOR ON-SITE WASTEWATER TREATMENT SYSTEMS USING MATRIC POTENTIAL SENSORS." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243013245.

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Ghumrawi, Marwa Jamal. "Potential for Nitrogen Losses from On-Site Wastewater Treatment Systems on Poorly Drained Soils to Curtain Drains." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471876488.

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10

Nguyen, Thi Van Anh, Xuan Hien Dang, and Duc Toan Nguyen. "Research on model-based calculation of greenhouse gas emissions from domestic wastewater treatment systems in Vietnam." Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A32621.

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There are three important greenhouse gases: carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), which are generated from the domestic wastewater treatment systems, including on-site and off-site sources. On-site emission of greenhouse gases occurs during process of wastewater treatment, while the off-site emission of greenhouse gases occurs during energy using and other supporting activities of the treatment system. The research established model to calculate greenhouse gas emissions from the domestic wastewater treatment systems, was named No.0 MTH model. The No.0 MTH model was based

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11

Toledo, De Leon Rogelio. "Predicting Hydrological Performance of Engineered (Curtain) Drains for On-Site Wastewater Treatment Systems Installed in Poorly Drained Soil." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417713887.

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12

Richards, Samia. "On-site wastewater treatment systems as sources of phosphorus and other pollutants in rural catchments : characteristics and tracing approaches." Thesis, Bangor University, 2017. https://research.bangor.ac.uk/portal/en/theses/onsite-wastewater-treatment-systems-as-sources-of-phosphorus-and-other-pollutants-in-rural-catchments-characteristics-and-tracing-approaches(cf2d6620-06b2-4737-8626-c6b736717585).html.

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This thesis investigated the influence of septic tanks (ST) on stream water quality. Characterisation of septic tank effluent (STE) revealed that STE were enriched in phosphorus (P), nitrogen (N), organic matter (OM) and metals relative to stream waters and large proportions of these parameters were present in the soluble reactive forms. Human factors such as tank design, number of users, dishwasher use and infrequent desludging significantly (P < 0.05) influenced effluent quality. ST that received roof runoff had reduced effluent retention time, while infrequent desludging was linked to incre

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13

O'Leary, Terry. "The development of a knowledge model for home owners to better understand and manage their on-site wastewater treatment systems." Thesis, University of Huddersfield, 2015. http://eprints.hud.ac.uk/id/eprint/29148/.

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In Ireland many people live in homes that are rurally located and not connected to public wastewater treatment systems. Where this is the case, the treatment of the wastewater produced must be undertaken by a private on-site wastewater treatment system (OSWTS). Properly built and maintained private on-site wastewater treatment systems can treat effluent in an ecologically sound manner and return the water to the environment. Nevertheless, inappropriately designed, installed and maintained systems can lead to the contamination of ground and surface water resources (Gray 1994; Daly, 2001; Flynn

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14

Dawes, Les A. "Role of soil physical and chemical characteristics and landscape factors in defining soil behaviour under long term wastewater dispersal." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16297/1/Les_Dawes_Thesis.pdf.

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The use of on-site wastewater treatment systems for the treatment and dispersal of domestic effluent is common in urban fringe areas which are not serviced by centralised wastewater collection systems. However, due to inappropriate siting and inadequate evaluation of soil characteristics, the failure of these systems has become a common scenario. The current standards and guidelines adopted by many local authorities for assessing suitable site and soil conditions for on-site dispersal areas are coming under increasing scrutiny due to the public health and environmental impacts caused by poorly

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15

Dawes, Les A. "Role of soil physical and chemical characteristics and landscape factors in defining soil behaviour under long term wastewater dispersal." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16297/.

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The use of on-site wastewater treatment systems for the treatment and dispersal of domestic effluent is common in urban fringe areas which are not serviced by centralised wastewater collection systems. However, due to inappropriate siting and inadequate evaluation of soil characteristics, the failure of these systems has become a common scenario. The current standards and guidelines adopted by many local authorities for assessing suitable site and soil conditions for on-site dispersal areas are coming under increasing scrutiny due to the public health and environmental impacts caused by poorly

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16

Rivera, Brian. "Analysis of the Florida's Showcase Green Envirohome Water/Wastewater Systems and Development of a Cost-Benefit Green Roof Optimization Model." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2580.

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The Florida Showcase Green Envirohome (FSGE) incorporates many green technologies. FSGE is built to meet or exceed 12 green building guidelines and obtain 8 green building certificates. The two-story 3292 ft2 home is a "Near Zero-Loss Home", "Near Zero-Energy Home", "Near Zero-Runoff Home", and "Near Zero-Maintenance Home". It is spawned from the consumer-driven necessity to build a home resistant to hurricanes, tornadoes, floods, fire, mold, termites, impacts, and even earthquakes given up to 500% increase in insurance premiums in natural disaster zones, the dwindling flexibility and coverage

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17

Geary, Phillip M. "On-site system effluent source tracking using geochemical and microbial tracers in a coastal catchment." Thesis, View thesis, 2004. http://handle.uws.edu.au:8081/1959.7/566.

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The principal aims of this thesis were to examine whether there were hydraulic links between individual on-site wastewater systems in sandy soils at Salt Ash and the Tilgerry Creek estuary near Port Stephens, New South Wales, and whether the chemical and microbiological contaminants from on-site systems could reach surface and groundwaters, and possibly lead to impacts on estuarine oyster growing waters. The research outcomes are contained within the thesis and in four refereed papers presented at conferences, and which have been subsequently published, or are in press. Copies of each of these

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18

Sörelius, Kiessling Helene. "”Rätt avlopp på rätt plats” : – Livscykelanalys av tre enskildaavloppsanläggningar." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-198701.

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”Rätt avlopp på rätt plats” – Livscykelanalys av tre enskilda avloppsanläggningar Problemen med övergödning i Östersjön och i Sveriges insjöar är stort och enskildaavlopp pekas ut som en central aktör, framförallt beträffande fosforutsläppen. I Sverigefinns det ungefär en miljon enskilda avloppssystem och nästan hälften av dessa har enså pass bristande vattenrening att de inte uppfyller gällande lagstiftning. Utvecklingenav nya tekniker för rening av avloppsvatten har länge strävat efter att minska utsläppenav övergödande ämnen, detta ibland på bekostnad av andra utsläpp, så somväxthusgaser oc

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19

Smith, Stephanie. "An evaluation of the physical and demographic characteristics contributing to on-site sewage management system failure in metropolitan Atlanta, Georgia." Thesis, Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/55041.

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When designed, installed, and maintained properly, septic systems provide a cost-effective and environmentally-sound method to treat domestic wastewater. However, poor installation, unsuitable site conditions, and infrequent maintenance can lead to system failure and the discharge of partially-treated effluent to local waterways. As many as 1%, or 4,000 systems, fail each year in the Atlanta area. Therefore, the purpose of this paper is to evaluate what social and physical factors are significant to the location of on-site sewage management system failures in Cherokee County, Georgia. A regres

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20

Touya, Eduardo J. Miles. "A comparative study of a conventional and a mound on-site wastewater disposal system in a coastal environment." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-12232009-020649/.

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Dowling, T. J. ""Sustainable development in water and sanitation" : a case study of the water and sanitation system at the Lynedoch Ecovillage Development." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1041.

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Thesis (M.Phil. (School of Public Management and Planning))--University of Stellenbosch, 2007.<br>ENGLISH ABSTRACT: Water and sanitation is one of the key factors in the socio-economic development of a nation and people. Billions of people worldwide do not have access to clean water or basic sanitation leading to many health problems and developmental issues. This article discusses the challenges facing the world, South Africa and in particular the Western Cape and Cape Town in the provision of water and sanitation. For most people the desire is to have access to their own private portable wat

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22

Litman, Stephanie Gail. "Liquid retention and radial distribution in coarse sand for on-site wastewater treatment systems." 1995. http://catalog.hathitrust.org/api/volumes/oclc/33147864.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1995.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 49-52).

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Mickelson, Mark Alan. "Rejuvenation of clogged on-site wastewater disposal systems in sandy soils using hydrogen peroxide." 1987. http://catalog.hathitrust.org/api/volumes/oclc/15609668.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1987.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 93-95).

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24

Urynowicz, Michael A. "Nitrogen removal from septic effluent utilizing on-site wastewater treatment systems Black River Correctional Center Research Station /." 1995. http://catalog.hathitrust.org/api/volumes/oclc/33154196.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1995.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 176-178).

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Endter, Brian B. "On-site wastewater treatment systems for nitrogen removal from septic tank effluent Black River Falls Correctional Center Research Station /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/37365420.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1996.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 48-149).

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26

Davies, Patrick Jeffrey. "Using electromagnetic induction techniques to locate and delineate contaminant plumes due to on site wastewater treatment systems and constituent movement away from OSWT systems." 2005. http://purl.galileo.usg.edu/uga%5Fetd/davies%5Fpatrick%5Fj%5F200512%5Fms.

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Sinclair, Andrew Charles. "An Integrated Modeling Approach for Evaluation of Phosphorus Loading in Rural Nova Scotia Watersheds." 2014. http://hdl.handle.net/10222/43970.

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Residential on-site wastewater systems (OWS) are a potential source of phosphorus (P) which can negatively impact surface water quality in rural watersheds. The magnitude of P loading from OWS is typically not monitored, and is further complicated when agricultural land-uses are intermixed with residential dwellings. Watershed-scale computer simulations are commonly used tools for evaluating the impacts of land-use changes on P loading. Existing models simulate OWS P treatment via vertical flow transport in native soils. However, in Nova Scotia (NS) OWS designs rely pre-dominantly on lateral f

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28

Hanson, Brian L. "The Spatial Relationship Between Septic System Failure and Environmental Factors in Washington Township, Marion County, Indiana." Thesis, 2019. http://hdl.handle.net/1805/19510.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Underground septic systems thrive or fail based on the relationship with their local environment. This paper explores ways environmental variables such as soil type, tree roots, degree of slope, and impervious surfaces affect on-site wastewater treatment systems. It also discusses the effects each of these variables may have on a septic system, and the resulting impact a compromised system may have on the surrounding environment. This research focuses on an approximately 20 square mile area of central Washington Township in Marion Co

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