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Rozprawy doktorskie na temat „Pond water”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Shpiner, R. A. M. "Treatment of produced water by waste stabilsation pond." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498655.

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Falabi, Ablawa Jeanne. "Pathogen removal from wastewater by a duckweed pond." Thesis, The University of Arizona, 1996. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0093_sip1_w.pdf&type=application/pdf.

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Saqqar, Muwaffaq M. "System analysis of a wastewater stabilization pond complex." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308964.

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Chmilar, Jennifer Andrea. "Ancient Maya Water Management: Archaeological Investigations at Turtle Pond, Northwestern Belize." Cincinnati, Ohio : University of Cincinnati, 2005. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1121358311.

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Betts, Anthony Thomas. "Assessment of a Countywide Stormwater Pond Improvement Project: Impacts of the Hillsborough County Adopt-A-Pond Program." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3009.

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Comparative research was conducted to assess the environmental impacts of the Adopt-a-Pond program, which operates throughout Hillsborough County, Florida. The Adopt-a-Pond program was established in 1992 and designed to address nonpoint pollution through outreach and stormwater pond enhancement. However, the program had never been thoroughly and scientifically evaluated. Therefore, assessments of water quality and vegetative characteristics were made at ninety Adopt-a-Pond participants and eleven control ponds to explore the potential impacts of the program on measurable environmental paramet

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6

Westensee, Dirk Karl. "Post-treatment technologies for integrated algal pond systems." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1018180.

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Integrated Algae Pond Systems (IAPS) are a derivation of the Oswald designed Algal Integrated Wastewater Pond Systems (AIWPS®) and combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. IAPS technology was introduced to South Africa in 1996 and a pilot plant designed and commissioned at the Belmont Valley WWTW in Grahamstown. The system has been in continual use since implementation and affords a secondarily treated water for reclamation according to its design specifications which most closely resemble those of the AIWPS® Advanced Secondary Process developed by

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Desrochers, Anne. "Water harvesting through ponds in the Arco Seco region of the Republic of Panama : decision support system for pond storage capacity estimation." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80908.

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The 'Arco Seco' or 'Dry Arc' region of the Republic of Panama is considered to be the driest in the country, where many areas of this region experience severe water stress during the months of January through May. This study was conducted to develop a tool for the assessment of sustainable implementation of water harvesting through ponds for agricultural purposes in the region. A computer based Decision Support System (DSS) has been developed specifically for the Arco Seco region in order to facilitate pond storage capacity estimation. As part of the DSS, four computer programs have bee

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Schneider, Seth J. "Hydrothermal and water quality modelng for evaluation of Ashumet Pond trophic state." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42637.

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Thye, F. Brian. "Virginia Tech Duck Pond Retrofit for Improved Water Quality in Stroubles Creek." Master's thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/46523.

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Stroubles Creek is registered on Virginiaâ s 303(d) list of impaired waters for both benthic and fecal coliform impairments. The upper reach of the creekâ s watershed drains into two ponds on the Virginia Tech campus. The area draining to the ponds, approximately 715 acres, encompasses most of the Town of Blacksburg and the Virginia Tech campus. Below the ponds, the creekâ s watershed is primarily forested and agricultural, with some areas of residential development. In order to improve water quality downstream, the two ponds will be converted to a water quality facility by redirectin

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10

Prokešová, Eva. "Posouzení možnosti zřízení vodní nádrže." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402596.

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The aim of the thesis is to assess the possibility of establishing a water reservoir in s selected location witch regard to its possible water management activities including geological conditions. The thesis also defines basic terms related to water reservoir and their parts. This work was elaborated with the help of available literature and valid laws of the Czech Republic concerning the given issue. At the end of the work will be valued land meeting the conditions for the construction of a small water tank. The award will take place in two ways according to the decree and direct comparison.

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Hounkpe, Wendeou Sèna Peace. "Wastewater treatment and resource recovery for poverty alleviation : a combined duckweed and water hyacinth pond system." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/20965.

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Floating macrophyte pond systems, with the ability to produce nutrient enriched plants simultaneously with wastewater treatment, are a sustainable solution to contribute to environmental protection and safe nutrient recovery from domestic wastewater. However, to meet the requirements for reuse with high strength wastewater containing high levels of metal pollution generated in developing countries, an adequate combination of water hyacinth and duckweed ponds is proposed in order to take advantage of the best characteristics of each of these macrophyte ponds. This research focused on the advanc

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12

Jimoh, Taobat Adekilekun. "Water quality, biomass and extracellular polymeric substances in an integrated algae pond system." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/57307.

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Integrated algae pond systems (IAPS) combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. Although, IAPS as a technology process offers many advantages including efficient and simultaneous N and P removal, no requirement for additional chemicals, O2 generation, CO2 mitigation, and a biomass with potential for valorization, a lack of technological advancement and the need for large land area, has limited the reach of this technology at industrial scale. In mitigation, peroxonation was introduced as a tertiary treatment unit and its effect on COD and TSS of IAPS

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13

Bowen, Christian A. "Effects of Raceway Pond Water and Nutrient Recycling on Microalgae Production and Harvesting." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1896.

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To be environmentally sustainable, algae biofuel production requires extensive recycling of water and nutrients during algae cultivation. Such recycling can be in the form of reuse of external wastewaters, such as from municipal sewers, but, to achieve significant biofuels production, internal recycling at the algae farms is also needed. A potential difficulty with internal recycling is the accumulation of auto-inhibitory compounds in recycled algae pond water. An additional concern is that nutrients in the residuals from algae biofuel manufacturing will be only partly bioavailable. Both these

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14

MCCORKEL, MIA, Chandra Khatri, Ritika Mohan, and Elizabeth Pedersen. "TREATMENT OF CENTRAL ARIZONA PROJECT WATER: REVERSE OSMOSIS AND EVAPORATION POND BRINE DISPOSAL." Thesis, The University of Arizona, 2009. http://hdl.handle.net/10150/192552.

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15

Vickers, Shannon Lynne. "Metal mobility in a stormwater detention pond, investigating metal mobility and sediment-water exchange." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0002/MQ46012.pdf.

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Choi, Julia. "The study of biological interactions using water quality modeling : Massachusetts Military Reservation, Ashumet Pond." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42623.

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Ouedraogo, Faissal Romaric. "Impact of Sludge Layer Geometry on the Hydraulic Performance of a Waste Stabilization Pond." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6344.

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Improving the hydraulic performance of waste stabilization ponds (WSPs) is an important management strategy to not only ensure protection of public health and the environment, but also to maximize the potential reuse of valuable resources found in the treated effluent. To reuse effluent from WSPs, a better understanding of the factors that impact the hydraulic performance of the system is needed. One major factor determining the hydraulic performance of a WSP is sludge accumulation, which alters the volume of the pond. In this study, computational fluid dynamics (CFD) analysis was applied to i

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18

Chainark, Suwanit Boyd Claude E. "Effect of sodium nitrate treatment on water and sediment quality in laboratory and pond studies." Auburn, Ala, 2008. http://hdl.handle.net/10415/1454.

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19

Vemuri, Sruthi Chowdary. "Nutrient Removal in a Constructed Wetland, and Impact on Water Quality in a Downstream Pond." Youngstown State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1327337303.

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Murphy, Sarah Elizabeth. "An investigation into the treatment efficiency of a primary pond in the Barker Inlet Stormwater Wetland System, South Australia /." Title page, table of contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09ENS/09ensm978.pdf.

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Thesis (M.Eng.Sc.)--University of Adelaide, Dept. of Civil and Environmental Engineering, 2000?<br>Corrigenda pasted onto front end-paper. The CD contains Excel spreadsheets containing data collected. Bibliography: leaves 209-222.

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21

Lizima, Louis. "Hydraulic Evaluation of a Community Managed Wastewater Stabilization Pond System in Bolivia." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4360.

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This work explores the hydraulic performance of a wastewater lagoon system located in San Antonio, Bolivia. The system consists of one facultative pond and two maturation ponds in series and is managed through a locally elected water committee. A tracer study was performed on the primary facultative pond and an analysis of the solids accumulation on the bottom of the facultative lagoon was also performed. The results were used to generate residence time distribution curves and provide an estimate of mean residence time in the system. The data was used to examine hydraulic efficiency as it rela

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22

Harper, Elizabeth B. "The role of terrrestrial habitat in the population dynamics and conservation of pond-breeding amphibians." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4693.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 25, 2007) Vita. Includes bibliographical references.

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23

Gornak, Steven. "A Comparison of Meristics and Morphometrics between Two Strains of Pond Cultured Striped Bass (Morone saxatilis)." W&M ScholarWorks, 1991. https://scholarworks.wm.edu/etd/1539617636.

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Ansah, Yaw Boamah. "Characterization of pond effluents and biological and physicochemical assessment of receiving waters in Ghana." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/31948.

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This study was carried out to characterize ponds and aquaculture systems, and also to determine both the potential and actual impacts of pond aquaculture effluents on receiving stream quality in the Ashanti and Brong Ahafo regions of Ghana. Water, fish and macroinvertebrate samples were collected from upstream, downstream and nearby reference streams of, and questionnaires administered to, 32 farms. Total settleable solids were higher in ponds than reference streams (p = 0.0166); suspended solids was higher in ponds than reference streams (p = 0.0159) and upstream (p = 0.0361); and total phosp

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25

Dang, Thien Ngon. "Autonomous water-cleaning machine using solar energy in shrimp ponds." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-99264.

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Limited water exchange shrimp culture technology is commonly used today in many shrimp farms in Vietnam to reduce water usage, input of diseases and discharge of nutrient-rich effluents into environment as well as to increase the production per unit area. However, a remaining problem in this technology is that the water quality in shrimp ponds will be reduced due to limitation of water exchange for a long period. The accumulation of inorganic components such as waste feed, bacterial deposits or other biological debris at the pond bottom will lead to low dissolved oxygen, high ammonia-nitrogen

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Lévesque, Céleste Marie. "Oil sands process water and tailings pond contaminant transport and fate : physical, chemical and biological processes." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50023.

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The Alberta Oil Sands development has been in operation since the 1960s, where innovations in technology in bitumen extraction have resulted in adaptive management of environmental sensitivities to Oil Sands Process-affected Water (OSPW) and tailings. This research assessed all the potential processes that OSPW constituents might undergo in the tailings impoundments in order to theorize on their ultimate fate. A conceptual tailing pond model was created, the first of its kind as there have been no attempts in the existing literature, and a tool for future management of these facilities. The de

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27

Vesk, Peter A. (Peter Anton). "Trace Metal Accumulation by Water Hyacinth, Eichhornia crassipes (Mart.) Solms, from Kensington Pond, Centennial Park, Sydney." Thesis, The University of Sydney, 1997. https://hdl.handle.net/2123/27621.

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Trace metal accumulation from urban stormwater run-off by a freefloating aquatic macrophyte, water hyacinth, Eichhornia crassipes (Mart) Solms, was studied in Kensington Pond, Centennial Park, Sydney. Two aspects of accumulation were investigated: - spatial variation of copper and lead concentrations among plants (and plant parts and sediment) throughout the wetland, using atomic absorption spectrometry of acid-digests; - metal distribution within the roots, using electron microscopy and Xray microanalysis. Copper and lead concentrations of roots ranged over an order of magnitude throu

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Caporuscio, Elizabeth. "EVALUATION OF A SEQUENTIAL POND SYSTEM FOR DETENTION AND TREATMENT OF RUNOFF AT SKYPARK, SANTA'S VILLAGE." CSUSB ScholarWorks, 2018. https://scholarworks.lib.csusb.edu/etd/773.

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Understanding the extent to which human activities impact surface water resources has become increasingly important as both human population growth and related landscape changes impact water quality and quantity across varying geographical scales. Skypark, Santa’s Village is a 233.76-acre tourism-based outdoor recreation area located in Skyforest, California residing within the San Bernardino National Forest. The park is situated at Hooks Creek, the headwaters of the Mojave River Watershed, and is characterized by a diverse landscape that includes forest cover and human development, including

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Stoudt, Amanda. "Pollution Prevention and Water Reuse at Utah Department of Transportation Facilities." DigitalCommons@USU, 2020. https://digitalcommons.usu.edu/etd/7714.

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As stormwater flows over roads, sidewalks, and other impervious surfaces, it picks up pollutants that are deposited on these surfaces. One common pollutant transported by stormwater is road salt. While the application of road salt is crucial for wintertime public safety, road salt has a host of negative environmental impacts. Road salt has been linked to increasing levels of dissolved solids in groundwater, vegetation damage, and behavioral changes in aquatic organisms. Studies have shown that these impacts are concentrated around salt storage facilities. As a result, the United States Environ

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30

Xu, Bojun. "Microbial fuel cells coupled with open pond for wastewater treatment: is it viable?" Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/52987.

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Sediment microbial fuel cell (SMFC) is a special type of microbial fuel cells that can be deployed in a natural water body for energy production and contaminant removal. This MS project aims to explore whether it will be viable to apply SMFCs for wastewater treatment. Experimental SMFCs were studied in several configurations and operational modes for organic removal, nitrate reduction, and energy recovery. When treating an artificial secondary effluent for nitrate removal, the SMFC could remove 44% of the nitrate, higher than that without electricity generation. The enhanced removal was attrib

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Bozkurt, Okan Cagri. "Operation Of The Water Control Structures." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615419/index.pdf.

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Floods are one of the most important natural disasters regarding damages caused by them. Major reasons of huge damages of floods are unplanned urbanization, narrowing of river beds and incorrect operation of water control structures. Geographic Information Systems (GIS) can provide important tools to be used in flood modeling studies. In this study, Lake Mogan, Lake Eymir and Incesu Detention Pond subbasins are studied for flooding events within GIS framework. These subbasins are important catchment areas of city of Ankara with total drainage area of 1070 km2. Soil Conservation Service (SCS) m

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TÃvora, Marcelo Aguiar. "Impact Socioenvironmental Release of Leachate and Sewage in Water Resources: The Case of Pond Borzeguim, Itapipoca-CE." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9009.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>O municÃpio de Itapipoca localiza-se na zona norte da regiÃo do estado do CearÃ e dista 133 km da capital, Fortaleza. Sua populaÃÃo Ã estimada em 114 mil habitantes e a cidade enfrenta um problema ambiental comum a outras cidades cearenses: a destinaÃÃo dos resÃduos sÃlidos em lixÃes. O lixÃo do municÃpio de Itapipoca foi instalado em 2002 em Ãrea de grande vulnerabilidade socioambiental, nas proximidades de uma importante lagoa e de uma comunidade que dela se utiliza para atividades econÃmicas e consumo prÃprio. A comun

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Deepa, K. G. "Occurrence of ectocommensal ciliates on Metapenaeus dobsoni (MIERS) in relation to water quality parameters in pond ecosystem at Vypeen." Thesis, Central Marine Fisheries Research Institute, 1997. http://eprints.cmfri.org.in/11050/2/Deepa%20K.G..pdf.

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Fishery sector has a place of pride in the national economy of India. Shrimps are the single item in the basket of marine products with universal taste-remain the backbone of Indian marine product export. Due to the declining trend of prawn catches from the sea, brackish water and fresh water prawn farming has immense scope to fulfill the growing demands of the population. The culture practices are mostly restricted to Penaeus sp. obviously because of certain special qualities attributed to it. However, in traditional prawn culture, practised in coastal waters, prawns other than Penaeus sp.

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Malone, Caroline E. ""Sea Water Fish in a Freshwater Pond:" An Institutional Approach to Understanding Cooperative Scarcity in the United States." Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/scripps_theses/499.

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There is remarkable cooperative organization scarcity in the United States. Particularly in the credit union and worker cooperative sectors, this scarcity is not satisfactorily explained by neo-classical economic models that assume competitive conditions and profit-maximizing organizations. This paper supplements the conventional economic understandings of credit union and worker cooperative scarcity with an institutional analysis. Mechanisms of coercive, mimetic, and normative institutional isomorphism developed in DiMaggio and Powell’s theory of organizational isomorphism are applied to prov

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35

Lee, Ronald Sang. "A physical assessment of Snake Pond of Cape Cod, Massachusetts, including a thermal and surface/ground water model." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42686.

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Edwards, Paula Kay. "The Correlation of the Concentration of Selected Metals Determined in Water and Fish Samples from a Public Pond." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etd/1774.

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The concentrations of heavy metals (Cd, Cu, Fe, Ni, Pb, Zn) were measured in water, and fish samples caught from the pond at Fishery Park in Unicoi County, TN. The water samples were collected once a week for 8 weeks. The amounts of metals in the muscle tissues, gill, and liver of the two fish species were measured. This was to determine if any correlation exists between the metal contents in water and those in the fish samples. The concentration ranges for the heavy metals found in the water samples are as follows: Zn 0.04-0.13; Cu, 0.00-0.00; Pb, 0.00-0.59; Cd, 0.0067-0.0071; Fe, 0.208-0.512

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Fairman, Christy Michelle. "Using an Occupancy Modeling Framework to Test the Effects of Habitat Variables on Pond Occupancy of Mabee's Salamander (A mabeei) and Marbled Salamander (A opacum)." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539626882.

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Drašar, Zdeněk. "Studie rekonstrukce rybníku Těšík v k.ú. Horní Bory." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371823.

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This diploma thesis deals with the proposal of reconstuction of the pond Těšík at the level of study. The introductory part of the thesis defines the terminology and the partition of small water reservoirs. The next practical part is focused to the locality of interest and its current state leading to the necessary reconstruction. This part is followed by the design of a technical solution for reconstruction based on hydrotechnical calculations and the graphics part.

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Woodside, M. D. "Analysis of water quality problems in the VPI & SU Duck Ponds and suggested management alternatives." Thesis, Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53725.

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Allochthonous nutrients were monitored during three storm events on one of the major tributaries entering the shallow VPI&SU Duck Ponds. Autochthonous nutrients were monitored for a period of ten months. During these storms, the stormwater runoff contributed large amounts of organic matter and fertilizer nutrients that settled in the ponds and during anoxic conditions, recycled to stimulate algal blooms. Alum was applied to one pond to reduce internal cycling of nutrients. A 25 mg/L dose of alum produced an aluminum hydroxide floc that settled to the bottom and afterwards, lowered othophosphat

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Florberger, Jenny. "Dagvattendammars reningseffekt : påverkande faktorer och metodik för statistisk modellering." Thesis, Uppsala University, Department of Earth Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88846.

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<p>Storm water is defined as runoff from precipitation such as rain or snow. It is collected in sewage disposal systems and since it mainly originates from urban areas it can contain high levels of heavy metals, nutrients and oil etc. Polluted storm water is currently treated by different methods such as wet ponds, constructed wetlands and filter strips. This study investigates these methods, which in earlier studies have shown to give varying results regarding their treatment efficiency.</p><p>This thesis has been written on commission of SWECO VIAK and was aimed at studying those parameters

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Ebanks, Sue C. "The Common Pond Snail Lymnaea stagnalis: Extracellular Fluid Recovery in Adults and Calcification and Lead Sensitivity During Embryonic Development." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/658.

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Freshwater organisms are known to maintain hyperosmotic internal conditions despite outward diffusive loss of ions. The freshwater common pond snail Lymnaea stagnalis faces this challenge while additionally attaining the necessary ions for calcification. These are the first documented assessments of the time and mode of recovery for ions lost due to full-body withdrawal in adults of this species. Additionally, this document reports on the physiological and developmental onset of embryonic calcification and the commencement of active acquisition of shell-forming ions from the surrounding env

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Eriksson, Linda. "Lakvattenrening och kontroll vid deponier : granskning och sammanställning." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88869.

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<p>If not purified leachate from landfills would cause damages on the environment. At most landfills in Sweden local treatment of leachate is achieved, at the rest the leachate is transported to sewertreatment. While no comprehensive legal provisions for discharge exist in Sweden there is a difference in discharges between the installations for landfill. If no comprehensive legal provisions is produced guidance must improve.</p><p>Treatment of leachate and self monitoring system at fifteen installations in Sweden has been studied and compared. A study of literature about different treatment so

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Groves, Sarah Anne Biological Earth &amp Environmental Sciences Faculty of Science UNSW. "Spatial and temporal variation in the hydrochemistry of marine prawn aquaculture ponds built in acid sulfate soils, Queensland, Australia." Publisher:University of New South Wales. Biological, Earth & Environmental Sciences, 2008. http://handle.unsw.edu.au/1959.4/43273.

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Many brackish water aquaculture ventures in Australia and overseas have established ponds in coastal regions with acid sulfate soils (ASS). Acid sulphate soils are known to leach relatively high concentrations of metals, acid (metal and H+ ion) and sulfur, however very little is known about how these leached elements affect the water quality of aquaculture ponds. The main objective of this thesis was to describe the hydrochemical processes controlling the water chemistry in the water column and sediment pore water in the studied aquaculture ponds over time and space. Water samples providing th

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Nipper, Joel. "Measurement and modeling of stormwater from small suburban watersheds in Vermont." ScholarWorks @ UVM, 2016. http://scholarworks.uvm.edu/graddis/444.

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Despite decades of U.S. water quality management efforts, over half of assessed waterbody units were threatened or impaired for designated uses in the most recent assessments, with urban runoff being a leading contributor to those impairments. This cumulative research explores several aspects of urban runoff dynamics through a combination of field study and modeling. Stormwater ponds are ubiquitous in developed landscapes due to their ability to provide multiple forms of treatment for stormwater runoff. However, evolving design goals have reduced the applicability of much of the early work tha

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Stevenson, James Ronald. "Sustainability of brackish-water pond aquaculture systems : a farm-level analysis of economic, social and ecological dimensions in the Philippines." Thesis, University of Reading, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427839.

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Petersen, Jacques R. "A geochemical investigation of ground water and soils affected by evaporation pond seepage, at the Namakwa Sands Mineral Seperation Plant(MSP)." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/4218.

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Bibliography: leaves 78-81.<br>Evaporation ponds are used for treating wastewaters in arid regions worldwide. Namakwa Sands an Anglo American plc operation, mines heavy minerals along the semi arid West Coast of South Africa. An acid effluent is generated during treatment of these heavy minerals. The effluent is neutralized and disposed of into unlined evaporation ponds. Seepage from the ponds affects the surrounding environment as well as the subsurface waters. The main objective of this study was to investigate the effects of the seepage on the groundwater resources and potential implication

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Aza-Gnandji, Cocou Davis Ruben. "Salinity of irrigation water in the Philippi farming area of the cape flats, Cape Town, South Africa." University of the Western Cape, 2011. http://hdl.handle.net/11394/2921.

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Magister Scientiae - MSc<br>This research investigated the nature, source and the spatial variation of the salinity of the water used for irrigation in the urban farming area of Philippi, which lies in the Cape Flats region of the Cape Town Metropolitan Area, South Africa. The irrigation water is mainly drawn from the Cape Flats aquifer, and pumped into ponds for eventual crop irrigation. Water samples were collected in summer and in winter from fifteen selected sites using standard water sampling procedures. Each site consisted of one borehole and one pond. The samples were routinely analyzed

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Luksanaree, Maneechot. "Impacts of Future Climate Change in Water Resources Management at the Chao Phraya River Basin, Thailand." Kyoto University, 2020. http://hdl.handle.net/2433/259028.

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Marcin, Richard, and Matej Mucha. "THEORETICAL STUDY TO IMPROVE THE ENERGY BALANCE IN WASTEWATER TREATMENT PLANT : Investigation of microalgae photobioreactor in biological treatment step and open algal pond in reject water treatment in Uppsala and Västerås." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29917.

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The self-treatment system of nature cannot handle man-caused high rate water pollution on its own, therefore cleaning in wastewater treatment plant (WWTP) is necessary to avoid eutrophication – excessive enrichment of nature by nutrients. Current technologies applied in WWTPs are old, outdating and highly energy demanding, especially biological treatment step generally requires large amount of energy for aeration of water. The alternative to current system could be microalgae treatment step, which would use green algae to consume pollutants present in the waste water, namely nitrogen, phosphor

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Girleviciute, Aiste. "Uppföljning av reningsfunktionen i Steningedalens våtmark." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353512.

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Dagvattnet från Märsta är belastat med bland annat tungmetaller och näringsämnen. Vattnet hamnar i Märstaån och transporteras vidare ut till Mälaren. Steningedalens våtmark är ett dammsystem som renar och fördröjer en del av Märstaåns flöde före transport ut mot Mälaren. Syftet med detta självständiga arbete på kandidatnivå har varit att undersöka anläggningens reningsfunktion med hjälp av sedimentprovtagning. Sedimentprover har tagits vid in- och utloppet och en kemisk analys av dessa har utförts i ett ackrediterat laboratorium. Resultaten från in- och utloppet har jämförts för att se om de

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