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Dissertations / Theses on the topic 'Water Quality Parameters'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Benson, Richard Lynn. "On-line monitoring of water quality parameters." Thesis, University of Hull, 1991. http://hydra.hull.ac.uk/resources/hull:8391.

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Chapter one summarises the development of UK legislation for the protection of the aquatic environment, and highlights current EC legislative requirements for water quality. The need for on-line water quality monitoring and the alternative instrumental approaches to it are discussed, together with the philosophy of "easy care instrumentation" and water industry requirements for online analysers. A simple spectrophotometric FI system is proposed for the on-line determination of a range of water quality parameters. The following chapter details instrumentation used in the FI system, emphasising

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2

Eriksson, Simon. "Water quality in the Koga Irrigation Project, Ethiopia: A snapshot of general quality parameters." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-203128.

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The government of Ethiopia has initialized an investment in the agricultural sector in order to secure food production for a growing population. The Koga Irrigation and Water Management Project is a pilot project and hopes are that crop production will double. Water quality is an important factor to meet these expectations. The aim of this study is to assess the irrigation water’s biological and chemical quality by using locally available methods and compare the results with international water quality standards pertaining to agricultural use as well as human and animal consumption. The water

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3

Bannon, Henry James. "Effects of Water Quality Parameters on Prolonged Swimming Ability of Freshwater Fishes." The University of Waikato, 2006. http://hdl.handle.net/10289/2618.

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The critical swimming speed (Ucrit) of rainbow trout parr (Oncorhynchus mykiss) and three life stages of Galaxias maculatus, larval (whitebait), postlarval inanga and adult inanga, were tested at temperatures from 5oC to 25oC. All fish were swum at their acclimation temperature under normoxic conditions to determine the optimal aerobic exercise temperature. To determine whether acclimation affected swimming ability, trout parr acclimated to either 10oC or 20oC were swum at 20oC and 10oC, respectively. The potential effect of mild hypoxia (75% saturation) on trout parr and whitebait was also ex

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4

Nemeth, Douglas J. "Relationship of Aeromonas hydrophila to fish community health and water quality parameters." Virtual Press, 1985. http://liblink.bsu.edu/uhtbin/catkey/421946.

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Temperature, conductivity, and Aeromonas hydrophila density were determined bimonthly at six sites in the White River drainage system, Delaware County, Indiana, from April, 1984 through December, 1984. Fish were collected from four of the six sites. Fish were identified to species, examined for gross pathology, and their blood collected. Titers against A. hydrophila antigen 157 were determined for all carp (Cyprinus carpio) captured. Certain carp serum samples were also tested against three additional A. hydrophila antigens.Aerononas hydrophila densities appeared to be related to temperature a

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5

Miguntanna, Nadeeka Sajeewani. "Determining a set of surrogate parameters to evaluate urban stormwater quality." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/30416/1/Nadeeka_Miguntanna_Thesis.pdf.

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This thesis details methodology to estimate urban stormwater quality based on a set of easy to measure physico-chemical parameters. These parameters can be used as surrogate parameters to estimate other key water quality parameters. The key pollutants considered in this study are nitrogen compounds, phosphorus compounds and solids. The use of surrogate parameter relationships to evaluate urban stormwater quality will reduce the cost of monitoring and so that scientists will have added capability to generate a large amount of data for more rigorous analysis of key urban stormwater quality proce

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6

Medvedeva, О., and Y. Kryvoshei. "Assessment of some parameters of biological quality of the water in the city of KropIvnytskyi." Thesis, ТДМУ Укрмедкнига, 2017. http://dspace.kntu.kr.ua/jspui/handle/123456789/7242.

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7

Neto, Miguel Paulo Rodrigues. "Study of quality of water wells in Iguape-CE." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12251.

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Universidade Federal do CearÃ<br>According to the United Nations (UN), the target of one of the objectives Development Goals of halving the number of people without access to water drinking was reached - however, 768 million people still do not enjoy this advance overall, especially in rural areas. In this context, the population of Iguape, a district of municipality of Aquiraz-EC, is part of this minority, lacking sewage and supply for water distribution network. Thus, a study was performed to During the year 2013 with the objective of determining if the water wells used by population - the m

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8

Schlaerth, Hannah L. "Remote Sensing of Water Quality Parameters Influencing Coral Reef Health, U.S. Virgin Islands." Kent State University Honors College / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1525710103251186.

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9

Lathouri, Maria. "Assessment of the temporal variability of surface water quality parameters in setting environmental quality standards for metals." Thesis, Imperial College London, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550232.

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Metals, such as copper, zinc, cadmium, nickel and lead, can vary significantly in concentration over time and across small specified areas at the micro scale (geographic regions), either naturally or also due to human activities, such as urbanization, industrial and agricultural activities. Their chemical forms and distribution control their mobility, bioavailability and subsequent potential for toxicity which, in turn, dictates surface water quality. The physicochemical forms in which a metal ion is present (i.e. its speciation) determine the behaviour of the metal and therefore its bioavaila

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10

Obi, CL, MNB Momba, A. Samie, JO Igumbor, E. Green, and E. Musie. "Microbiological, physico-chemical and management parameters impinging on the efficiency of small water treatment plants in the Limpopo and Mpumalanga Provinces of South Africa." Water SA, 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000861.

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In the wake of the growing dependence on small water treatment plants (SWTPs) in providing quality water to rural areas and the global burden of water borne diseases, this study sought to examine the efficiency of 55 SWTPs located in rural or peri-urban areas of Limpopo and Mpumalanga Provinces in order to gauge the safety of water supply for human consumption. The microbiological and physical parameters of raw water, treated water and water in the distribution systems were examined using standard methods. Management issues impacting on quality of water supply were determined by use of questio

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11

Floresquerra, S. M., D. R. Dulaney, Kurt J. Maier, and Phillip R. Scheuerman. "Monitoring of Selected Bacteriological and Water Quality Parameters Associated with the Sinking Creek TMDL." Digital Commons @ East Tennessee State University, 2002. https://dc.etsu.edu/etsu-works/2929.

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12

Hall, Kimberlee K., L. K. Gallagher, Brian G. Evanshen, Kurt J. Maier, and Phillip R. Scheuerman. "Comparison of Microbial Water Quality Parameters of Four Geographically Similar Creeks in Northeast Tennessee." Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etsu-works/2943.

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Four creeks within the Watauga River watershed in Northeast Tennessee are routinely monitored for water quality assessments. To identify sources and monitor remediation, Sinking Creek, Cash Hollow Creek, Buffalo Creek and Boones Creek are monitored for chemical and microbial parameters. These parameters include phosphates, nitrates, BOD and fecal coliforms. Sinking Creek is a tributary of the Watauga River with 10 miles of impaired water. Cash Hollow Creek enters the Watauga River at river mile 11.4 with 3.4 miles of impaired water. Boones Creek contains 18.6 impaired miles while the status of

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13

Morgan, Elizabeth M. Ms. "Salmonella and Aeromonas Contamination in a 303(d) Listed Water Body Compared to Fecal Indicators & Water Quality Parameters." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/honors/370.

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Since the passage of the Clean Water Act, concern about surface water quality has increased. Reducing exposure to pathogens and adverse impacts on human health because of contact with surface waters has become the focus of many regulatory agencies. Fecal pollution is often a cause of surface water impairment. Fecal indicators, such as fecal coliforms and Escherichia coli, are used as surrogates to evaluate the presence or absence of fecal pollution. However, a growing body of research has shown that these species lack key characteristics necessary to be adequate indicators. As such, exploratio

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14

Barba, Ferrer Carme. "Physical, geochemical and microbial parameters driving the improvement of water quality in managed aquifer recharge." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/671103.

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Worldwide water demand has been increasing over time, mainly due to population growth and society development. In addition, climate change is causing a significant alteration of the periodicity and intensity of precipitation and climate related events. All this implies significant challenges for a sustainable exploitation of water resources specially during water scarcity periods. Therefore, Managed Aquifer Recharge (MAR) represents a feasibly solution to deal with future water management challenges through the storage of available water in aquifers. The present dissertation is focused on t

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15

Johnson, Johanna. "Aspects of Flexographic Print Quality and Relationship to some Printing Parameters." Doctoral thesis, Karlstad : Faculty of Technology and Science, Chemical Engineering, Karlstads universitet, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1793.

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16

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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17

Perttu, Nils. "Assessment of hydrogeological and water quality parameters, using MRS and VES in the Vientiane Basin, Laos /." Luleå : Luleå tekniska universitet, 2008. http://epubl.ltu.se/1402-1757/2008/35/.

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18

Asbaghi, Navid. "Assesment [sic] of water quality parameters in the West Fork of the White River in Muncie, Delaware County, Indiana." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1371683.

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Water quality parameters including ammonia, nitrate+nitrite, phosphate, total suspended solids, Escherichia coli, and dissolved oxygen were statistically evaluated from sampling data collected by the Bureau of Water Quality (City of Muncie, Indiana) at five sampling locations in Delaware County over a five-year period (2002-2006). These data were also compared with water quality standards/guidelines to determine how sample values compared to acceptable levels of these parameters. Friedman's non-parametric test was used to study the differences between sites and seasons. Spearman's Rank Correla

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19

Serrano, Odean. "The assemblage of water quality parameters and urban feature parameters, utilizing a geographic information system model for the use of watershed management in the Dardenne Creek Watershed, St. Charles County, Missouri." Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3172.

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Thesis (Ph. D.)--George Mason University, 2008.<br>Vita: p. 179. Thesis director: Lee M. Talbot. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Environmental Science and Public Policy. Title from PDF t.p. (viewed July 18, 2008). Includes bibliographical references (p. 148-149). Also issued in print.

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20

Matthews, Mark William. "Remote Sensing of Water Quality Parameters in Zeekoevlei, a Hypertrophic, Cyanobacteria-Dominated Lake, Cape Town, South Africa." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/4782.

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21

Ufermann, Susanne. "Evaluation of a semi-analytical approach to the retrieval of water quality parameters from optical data in European coastal Case-II waters." Thesis, University of Southampton, 2003. https://eprints.soton.ac.uk/9888/.

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This work addresses the retrieval of the three water quality parameters chlorophyll-a, yellow substance and suspended particulate matter from spectra of remote sensing reflectance in European coastal waters. We study the suitability of a semi-analytical algorithm for the retrieval of these parameters in coastal waters to investigate the validity of radiative transfer theory and bio-optical models that have been developed primarily for open ocean waters. To obtain water quality parameters from reflectance measurements we employ a non-linear inversion method (Gauss-Newton). Algorithm parameters

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22

Ali, Khalid A. "PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF CASE 2 WATERS." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1309980508.

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23

Clyde, Gerard A. "Spatial and temporal patterns exhibited by select physicochemical and biological water quality parameters in Lake Texoma, Oklahoma and Texas." Thesis, University of North Texas, 2004. https://digital.library.unt.edu/ark:/67531/metadc4628/.

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From August 1996 through September 1997 eleven fixed stations were sampled monthly in January, March , April , July, August, September, and November and fortnightly in May and June for the purposes of establishing baseline conditions present in Lake Texoma as related to U.S. Army Corps of Engineers chloride control activities in the upper Wichita River, Texas. Five reservoir zones were identified a priori using historical chloride concentration data and include the Red River Zone (RRZ), Red River Transition Zone (RRTZ), Main Lake Body (MLB), Washita River Transition Zone (WRTZ), and Washita Ri

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24

Kou, Zhiqing. "Use of artificial neural network for predicting stage-discharge relationship and water quality parameters for selected Hawaii streams." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/7002.

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The goal of the study is to examine the efficacy of the artificial neural network (ANN) to develop stage-discharge relationship and to simulate water quality parameters. With the data from the United States Geological Survey (USGS) for two Hawaii stream gaging stations: the Manoa Stream at Kanewai field and the Waiakeakua Stream at Honolulu, ANN will be used to predict discharge for those two stations, but only Manoa Stream at Kanewai Field will be analyzed for the water quality parameters such as dissolved oxygen, dissolved organic carbon, solids residue and suspended sediment. For both stati

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25

Hall, Kimberlee K., L. K. Gallagher, Brian G. Evanshen, Kurt J. Maier, and Phillip R. Scheuerman. "Comparison of Microbial Water Quality Parameters in Four Geographically Similar Creeks In Northeast Tennessee Using Multivariate Statistical Analyses." Digital Commons @ East Tennessee State University, 2007. https://dc.etsu.edu/etsu-works/2945.

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26

Mitchell, Andy M. "The effect of varying several operational parameters on the dewatering characteristics of activated sludge." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/50063.

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The purpose of this study was to investigate selective operational parameters and their effect on activated sludge settling and dewatering rates. Several laboratory scale reactors were used in this study and fed with various synthetic substrates. The sludges produced from these reactors were used to examine sludge settling and dewatering characteristics as the selected operational parameters were varied. This study intended to determine if: (1) qualitative shock loadings affect sludge dewatering and settling and will biological systems recover quickly under various conditions; (2) aeration bas

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27

Kamba, Evelyn Tatenda. "Effects of Aloe ferox in drinking water, on growth performance, blood parameters, meat quality, fatty acid profile and oxidative stability of broiler meat." Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/d1020202.

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The objective of the study was to determine the effects of Aloe ferox inclusion in drinking water on growth performance, blood biochemistry, physico-chemical characteristics, fatty acid profile and oxidative stability of broiler meat. The importance of A. ferox as a medicinal plant and factors that influence its utilization by communal poultry farmers were also investigated by use of a questionnaire survey. The survey revealed that the majority of respondents (84.6%) faced health challenges in their chickens and many relied (96.2%) on A. ferox to treat diseases and control parasites. The study

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Gudas, Mindaugas. "Systematic approach in water quality assessment of Lithuanian rivers in the context of physical, chemical and hyd-robiological parameters." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20110902_144002-20766.

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In this study the relationships among the land use and soil types in the entire river basin as well as in the buffer strip on the one hand, and the Lithuanian river water quality physico-chemical parameters on the other hand have been identified. The spatially based Factor analysis has been tested on river hydrochemical data from 108 sites for the period of 1999-2004. The Factor analysis enabled the identification of the main natural and anthropogenic processes (factors) determining water quality during each season of a year. As a result, monitoring stations were grouped into clusters each rep

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Johnson, David Richard Venables Barney J. "Use of in-stream water quality measurements and geospatial parameters to predict consumer surfactant toxic units in the upper Trinity River watershed, Texas." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-6091.

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30

Floresguerra, Susana Maria. "The use of selected water quality parameters to identify fecal coliform sources in support of the Sinking Creek total maximum daily load." [Johnson City, Tenn. : East Tennessee State University], 2003. http://etd-submit.etsu.edu/etd/theses/available/etd-0804103-094629/unrestricted/Flor081303f.pdf.

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Thesis (M.S.E.H.)--East Tennessee State University, 2003.<br>Title from electronic submission form. ETSU ETD database URN: etd-0804103-094629. Includes bibliographical references. Also available via Internet at the UMI web site.

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Souza, Lunéia Catiane de. "Uma análise crítica da qualidade de águas destinadas ao consumo humano no município de Francisco Beltrão - PR." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/52.

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Made available in DSpace on 2017-05-12T14:42:09Z (GMT). No. of bitstreams: 1 LUNEIA_CATIANE_SOUZA.pdf: 5365481 bytes, checksum: 9a9d4b12bca640330807fb186710d80f (MD5) Previous issue date: 2015-02-27<br>This research presents a critical analysis on the acceptable levels determined by the brazilian law for water contamination by agro-chemical residues, based on a diagnosis of the quality of water used for human consumption in the city of Francisco Beltrão, state of Paraná. In this work the elements related to the use of natural resources and socio-environmental impacts of agriculture are discu

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Johnson, David Richard. "Use of In-Stream Water Quality Measurements and Geospatial Parameters to Predict Consumer Surfactant Toxic Units in the Upper Trinity River Watershed, Texas." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc6091/.

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Surfactants are used in a wide assortment of "down-the-drain" consumer products, yet they are often discharged in wastewater treatment plant effluent into receiving water, potentially causing environmental harm. The objective of this project was to predict surfactant toxic units and in-stream nutrients in the upper Trinity River watershed. Surface and pore water samples were collected in late summer 2005. General chemistries and surfactant toxic units were calculated. GIS models of anthropogenic and natural factors were collected and analyzed according to subwatersheds. Multiple regressio

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Žydelis, Renaldas. "Vandens kokybės parametrų kaita ir Akademijos tvenkinio įtaka jų pokyčiams Dotnuvėlės upėje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_143233-75055.

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Lietuvoje kaip ir daugelyje pasaulio šalių dedama daug pastangų, kad vandenų tarša mažėtų. Pagal valstybinio monitoringo duomenis nustatyta, kad Lietuvos upėse vis dar išlieka didelės biogeninių medžiagų koncentracijos. Vandens tarša yra viena iš pagrindinių ES aplinkosaugos problemų. Norint išsiaiškinti pagrindines vandens taršos problemas, būtina atlikti nagrinėjamos upės vandens kokybės parametrų matavimus. Tam tikslui nuo 2010-11-06 iki 2013-05-07 buvo atliekami vandens kokybės tyrimai, kurių metu buvo fiksuojami šie parametrai: vandens lygis, ištirpusio deguonies koncentracijos, aktyvi va

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Maximo, Alessandra Cristina Niero Ferreira. "Água subterrânea da microbacia hidrográfica do Córrego Rico como fator de risco à saúde humana em propriedades rurais e urbanas no Município de Jaboticabal/SP /." Jaboticabal : [s.n.], 2009. http://hdl.handle.net/11449/94631.

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Orientador: Luiz Augusto do Amaral<br>Banca: Oswaldo Durival Rossi Junior<br>Banca: Laudicéia Giacometti Lopes<br>Resumo: O município de Jaboticabal está localizado em região onde prevalece a atividade agrícola e há uma elevada utilização da água de poços tanto para consumo humano, como animal, pertencentes a Microbacia Hidrográfica do Córrego Rico. O mesmo se observa em propriedades situadas na área urbana, com água advinda de poços particulares, que abastece uma grande parcela da população. O presente estudo teve como objetivo avaliar a situação deste tipo de abastecimento alternativo no mun

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Santos, Martha Raquel Pereira. "Bacterial community as a complementary tool to the water directive framework in ecological quality assessment of Caima river." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/21461.

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Mestrado em Microbiologia<br>Freshwater ecosystems have been suffering severe degradation and loss of biodiversity, caused by human disturbances such as agriculture, industry, mining, urban development and climate changes. Therefore, the European Union reached an agreement and implemented the Water Framework Directive (WFD), with the main goal of reach a good ecological status in all water bodies. However, WFD is very complex, methodologies are time-consuming and costly. Thus, the main objective of this study is to develop a rapid and cost-effective approach, by studying the bacterial communit

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Tshivhase, Ndivhuwo Samuel. "Assessment of river health using in situ water quality parameters and miniass protocol in the Marico and Crocodile rivers, North West Province, South Africa." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/77891.

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Freshwater resources in South Africa are limited and scarce, which is mainly attributed to the country’s varying climate resulting in predominantly desert to semi-desert conditions. Among the freshwater resources, groundwater is by far the most abundant and readily available source of water; followed by lakes, reservoirs and the rivers that provide a vital connection and access to freshwater. The Crocodile and Marico rivers are the two main rivers in the Crocodile (West) Marico Water Management Area (WMA) which primarily lies within the North West Province. Rivers have undergone varying degree

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Maximo, Alessandra Cristina Niero Ferreira [UNESP]. "Água subterrânea da microbacia hidrográfica do Córrego Rico como fator de risco à saúde humana em propriedades rurais e urbanas no Município de Jaboticabal/SP." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/94631.

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Made available in DSpace on 2014-06-11T19:27:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-05Bitstream added on 2014-06-13T20:56:03Z : No. of bitstreams: 1 maximo_acnf_me_jabo.pdf: 434278 bytes, checksum: c50398cf816f21d982ccdedf7da5818f (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>O município de Jaboticabal está localizado em região onde prevalece a atividade agrícola e há uma elevada utilização da água de poços tanto para consumo humano, como animal, pertencentes a Microbacia Hidrográfica do Córrego Rico. O mesmo se observa em propriedades

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Mwangi, François Ngera. "Land use practices and their impact on the water quality of the Upper Kuils River (Western Cape Province, South Africa)." Thesis, University of Western Cape, 2014. http://hdl.handle.net/11394/3366.

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>Magister Scientiae - MSc<br>The water quality in many Cape Town Rivers and streams is a major challenge. Kuils River is subject to multiple land use impacts from upstream to downstream because of rapid urbanization in its catchment area. The main pollution sources are urban and industrial, organic matter from litter under the road-bridge, and golf course. However no systematic efforts have been made to evaluate and improve the health of the river in term of management. To assess impacts on water quality, this study was conducted from 4th September to 27th November 2012 in 5 selected sites in

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Hall, Kimberlee K., Brian G. Evanshen, Kurt J. Maier, and Phillip R. Scheuerman. "Application of Multivariate Statistical Analyses to Microbial Water Quality Parameters in Four Geographically Similar Creeks in Northeast Tennessee to Identify Patterns Associating Land Use to Fecal Pollution Sources." Digital Commons @ East Tennessee State University, 2008. https://dc.etsu.edu/etsu-works/2947.

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Woodward, Craig Allan. "Development of chironomid-based transfer functions for surface water quality parameters and temperature, and their application to Quaternary sediment records from the South Island, New Zealand." Thesis, University of Canterbury. Geological Sciences, 2006. http://hdl.handle.net/10092/1380.

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This thesis resulted in the development of robust chironomid-based transfer-functions for February mean air temperature and the concentration of total nitrogen (TN) in lake-water. The New Zealand transfer-functions for both variables compare favourably with chironomid-based transfer-functions for equivalent variables from elsewhere in the world, and diatom-based transfer-functions for nutrients and lake production from New Zealand. The application of the temperature and TN transfer-functions provided insight into New Zealand climate conditions during the last glacial and served as validation f

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Quaresma, FabrÃzia da Silva. "Lethal concentration (LC50-96h) and sublethal effects of un-ionized ammonia on haematological para parameters of fingerlings tambacu (Colossoma macropomum x Piaractus mesopotamicus)." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16666.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>A amÃnia Ã um composto tÃxico para os organismos aquÃticos e em elevadas concentraÃÃes na Ãgua pode causar diversas alteraÃÃes no animal. Dessa forma, torna-se importante determinar o limite de tolerÃncia dos animais aquÃticos cultivados Ã essa substÃncia. Sendo assim, o objetivo do trabalho foi determinar a concentraÃÃo letal mÃdia (CL50-96h) da amÃnia nÃo ionizada (NH3) em alevinos de tambacu (Colossoma macropomum x Piaractus mesopotamicus), em teste de toxicidade aguda e avaliar os efeitos de concentraÃÃes subletais atravÃs da a

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Correia, Rosália Filipa Soares. "Modelação e análise do sistema de abastecimento de água na freguesia de Duas Igrejas do concelho de Penafiel." Master's thesis, [s.n.], 2012. http://hdl.handle.net/10284/3682.

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Dissertação apresentada à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Engenharia e Gestão Ambiental<br>A água é vital para a humanidade e, atualmente, o aceso a água com qualidade foi reconhecido como um direito humano pela Organização das Nações Unidas, sendo fundamental uma mudança nos hábitos de consumo e rejeição deste recurso. As entidades gestoras de água têm, por isso, o dever de proteger as origens de água, bem como de disponibilizar água com qualidade e em quantidade suficiente aos consumidores, como indicado no Decreto-Lei n.º 306/2007.

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De, Prisco Joseph Anthony. "An investigation of some key physico-chemical water quality parameters of an Integrated Multi-Trophic Aquaculture (IMTA) system operating recirculation methodology in the Western Cape of South Africa." Master's thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/32653.

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Over the last few decades, Integrated Multi-Trophic Aquaculture (IMTA) in South Africa has developed from early experimental designs to large scale, commercially operating farms. This was in response to uncertainty regarding food availability for stock (primarily kelp in the case of abalone farms) and a desire to recirculate water whilst reducing the environmental footprint of the abalone farms. The growing prevalence of IMTA as a commercially viable activity has brought about a need for an expansion of the knowledge pool regarding the physico-chemical processes at work in such systems. Of par

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Conterato, Taiane Menezes. "SIMULAÇÃO DA QUALIDADE DA ÁGUA DO RESERVATÓRIO DO VACACAÍ MIRIM UTILIZANDO O MODELO CE-QUAL-W2." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/7918.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The pollution and inadequate use of waters are problems that have been discussed frequently, because the water is a limited resource, which needs better management and conservation. Mathematical models of water quality have been used to assist studies relating to lakes, rivers, reservoirs and estuaries. The CE-QUAL-W2 is a software that simulates the change in water quality in the vertical and horizontal directions, it has several resources, and has been used by many authors. In Santa Maria, the Vacacaí Mirim reservoir has great im

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Hort, Zbyněk. "Parametry laserového paprsku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318845.

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The diploma thesis consists of the three main parts. The first part deals with the theoretical description of the laser technology and other unconventional technologies. In the second part, the thesis is focused on testing the parameters of the laser and evaluating the most suitable parameters. In the last part the diploma thesis deals with comparison of unconventional technologies in terms of cut quality

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Moussa, Haidar Chaden. "Évaluation de la qualité de l’eau du bassin supérieur de la rivière du Litani, Liban : approche hydrogéochimique." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0295/document.

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A la quantité limitée de l’eau disponible au Liban, vient s’ajouter un nouveau problème, la dégradation de la qualité des eaux superficielles menacées continuellement par la pollution et la salinisation. Les utilisations agricoles et industrielles et l’augmentation de la population génèrent des pollutions des cours d'eau qui posent des problèmes environnementaux et sanitaires. Afin de limiter et d'anticiper ces pollutions, il est nécessaire de disposer de méthodes d'évaluation des effets des systèmes de culture sur la pollution des eaux de rivière. Pour cela, nous avons sélectionné la rivière

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NEPOMUCENO, Thiago Cabral. "Modelo para simulação de nitrogênio e fósforo em sistemas de recursos hídricos, aplicação em região do alto curso do Rio Piranhas-PB." Universidade Federal de Campina Grande, 2018. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/389.

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Submitted by Lucienne Costa (lucienneferreira@ufcg.edu.br) on 2018-04-13T20:32:36Z No. of bitstreams: 1 THIAGO CABRAL NEPOMUCENO – DISSERTAÇÃO (PPGECA) 2018.pdf: 5961539 bytes, checksum: ea3a80835b67c0d1615b111f56921a4a (MD5)<br>Made available in DSpace on 2018-04-13T20:32:36Z (GMT). No. of bitstreams: 1 THIAGO CABRAL NEPOMUCENO – DISSERTAÇÃO (PPGECA) 2018.pdf: 5961539 bytes, checksum: ea3a80835b67c0d1615b111f56921a4a (MD5) Previous issue date: 2018-02-27<br>Capes<br>O lançamento de efluentes domésticos em ambientes aquáticos sem o devido tratamento vem comprometendo a qualidade da água

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Zamberlan, João Fernando. "CARACTERIZAÇÃO DE ÁGUAS DE RESERVATÓRIOS SUPERFICIAIS PARA USO EM MICROIRRIGAÇÃO." Universidade Federal de Santa Maria, 2007. http://repositorio.ufsm.br/handle/1/7618.

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Water is the most important and restrictive factor for the agricultural cultures so, the knowledge of its qualitative composition is important to the verticalization of productivity. For the microirrigation systems (located irrigation), its requirement in physical and chemical quality is bigger, because of the reduced diameter of its components, particularly the transmitters. The objective of this work was to characterize the superficial waters of UFSM campus in order to use them in microirrigation, trying to identify the levels of chemical and physical parameters that influence the irrigation

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Kubín, Matěj. "Obrábění těžkoobrobitelných materiálů pomocí vodního paprsku s abrazivem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402519.

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The diploma thesis deals with unconventional technology of material separation by water jet with abrasive. It describes the influence and specification of technological parameters of the water jet on the quality of the cutting surface. The work contains an experiment, where the aim was to achieve from the theory the influence of tech-nological parameters on surface roughness on composite materials from glass fiber and carbon fiber.

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Santos, Karina Pinheiro dos. "Macroinvertebrados bentônicos e parâmetros físico-químicos como indicadores da qualidade da água de microbacias utilizadas para o abastecimento público da região metropolitana de Goiânia." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/3957.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-27T13:42:09Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Karina Pinheiro dos Santos - 2014.pdf: 3037076 bytes, checksum: df6a8e2dbd116c93aeb46f89072253a7 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-28T11:22:01Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Karina Pinheiro dos Santos - 2014.pdf: 3037076 bytes, checksum: df6a8e2dbd116c93aeb46f89072253a7

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