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Dissertations / Theses on the topic 'Coal Effluent'

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1

Reynolds, Christopher David. "The effects of coal mine closure on macroinvertebrate communities." Thesis, Nottingham Trent University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341279.

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2

Little, Kathryn Leigh. "Using Electrical Resistivity Imaging to Relate Surface Coal Mining Valley Fill Characteristics to Effluent Stream Quality." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/94131.

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Surface coal mining has altered Appalachian landscapes, affecting water quality and aquatic ecology. Valley fills created from excess overburden are prominent features of many mined landscapes. Increased total dissolved solids (TDS), as measured by its surrogate specific conductance (SC), is a significant water quality concern related to the exposure of fresh mineral surfaces to weathering in valley fills. Specific conductance levels in waters draining Appalachian mined areas are highly variable, yet the causes for this variability are not well known. Here we sought to improve understanding of
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3

Kennedy, Alan James. "An Ecotoxicological Assessment of a Treated Coal-mining Effluent in the Leading Creek Watershed, Meigs County, Ohio." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/36291.

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The majority of research studying the ecological impacts of the coal mining industry on freshwater systems has focused on abandoned-mined land, and the associated acid drainage and metals toxicity. Treated discharges from active mining and preparation facilities, however, can also impair lotic ecosystems through total dissolved solids (TDS) toxicity, caused primarily by the reagents used for pH modifications and the oxidation of reduced sulfur. Such impairment was best detected through application of (1) benthic macroinvertebrate surveys using metrics of biotic impairment such as relative Ep
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4

Claxton, Andrew. "The effect of coalmine effluent on the parasite assemblages of Lepomis spp. in the Saline River Basin /." View online, 2009. http://repository.eiu.edu/theses/docs/32211131524883.pdf.

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5

Latimer, Henry Augustus II. "An Ecotoxicological Evaluation of Active Coal Mining, Sedimentation and Acid Mine Drainage in Three Tributaries of the Leading Creek Watershed, Meigs County, Ohio." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/9767.

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Three streams (Parker Run, Little Leading Creek and Thomas Fork) in the Leading Creek watershed, Meigs County, Ohio were impacted by active coal mining, agricultural and abandoned mined land sedimentation and acid mine drainage (AMD), respectively. An ecotoxicological evaluation was performed using physical (water chemistry and sediment depth analyses), toxicological (acute water column, chronic sediment and 35-day in situ toxicity tests) and ecological (benthic macroinvertebrate community sampling) parameters. Persistent acute toxicity (mean 48-hr LC50 of 30.3% to C. dubia) due to low pH (mea
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6

Harding, Theodor. "A prototype dynamic model for the co-treatment of a high strength simple-organic industrial effluent and coal-mine drainage." Doctoral thesis, Faculty of Engineering and the Built Environment, 2020. http://hdl.handle.net/11427/32660.

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This research study's the use of biological sulfate reduction technologies for the treatment of Sasol Secunda's coal-mine drainage (CMD) using Fischer-Tropsch Reaction Water (FTRW) as a cost-efficient carbon source. The research aims to develop a prototype dynamic model that describes this co-treatment of FTRW and CMD in both a continuously stirred tank reactor (CSTR) biological sulfate reduction (BSR) system and a BSR gas-lift (BSR-GL) integrated system. The BSR-GL system recovers elemental sulfur (S0 ) from the H2S produced and stripped from the BSR unit. Furthermore, this study aims to use
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7

Doherty, Melissa Kuckler. "Mosquito Populations in the Powder River Basin, Wyoming: A Comparison of Natural, Agricultural and Effluent Coal Bed Natural Gas Aquatic Habitats." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/doherty/DohertyM1207.pdf.

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Coal bed natural gas development in northeastern Wyoming has increased surface water in ranching and agricultural areas over undeveloped land. This increase of water increases larval habitat for mosquitoes, potentially increasing adult populations of West Nile virus vector mosquitoes. I compared adult and larval mosquito populations in four different habitat types in the Powder River basin including agricultural, natural, CBNG and upland sagebrush steppe. Adult mosquitoes were sampled weekly (2004) or bi-weekly (2005) using CDC miniature black-light traps baited with dry ice. A fixed-effect mi
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8

Specht, Winona L. "Alteration and recovery of a stream macroinvertebrate community exposed to fly ash effluent and an analysis of the causative factors." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/76483.

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Structural and functional changes in the macroinvertebrate community of a fly ash receiving stream were investigated during the final year of fly ash basin operation and for 10 months after fly ash discharges to the stream were terminated. Minimal changes were observed in the benthic community until the basin reached 77% of capacity, at which time the number of macroinvertebrate taxa, density of organisms, diversity, and relative abundance of Ephemeroptera all declined sharply. Ephemeroptera (mayflies) exhibited the greatest sensitivity to the fly ash effluent, while the beetle, Psephenus herr
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9

SOTO, OMAR ALFREDO JUAREZ. "REMOVAL OF MANGANESE II FROM LIQUID EFFLUENTS THROUGH THE SORPTION ON PALYGORSKITE AND COAL ASH." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7600@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Neste trabalho estudou-se a remoção de manganês II, de efluentes da indústria mineira, por sorção, utilizando dois tipos de sorventes: o minério de paligorsquita proveniente Nova Guadalupe (Piauí) e a fração pesada das cinzas proveniente da queima de carvão mineral da indústria termoelétrica de Tubarão (SC). Foi apresentado um breve histórico da sorção de metais em argilas e óxidos, além das características dos processos de sorção e a análise dos principais trabalhos correlatos disponíveis na literatura, procurando evidenc
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10

Mansuy-Huault, Laurence. "Rôle du milieu réactionnel au cours de la maturation artificielle de la matière organique : application au prélèvement des effluents en cours de pyrolyse." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL041N.

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Dans un système de pyrolyse comme dans un système de maturation naturelle de la matière organique, les différentes fractions du pyrolysat, qui constituent le milieu réactionnel, sont en contact intime sous l'effet de la pression développée dans le système. De façon à mettre en évidence les interactions entre ces différentes fractions et leur importance dans les réactions de maturation de la matière organique, cinq milieux réactionnels différents ont été reconstitués (1) une série de pyrolyse en milieu confiné classique du charbon de la Mahakam (280°C à 370°C - 24 h ; 700 bars) (2) une série EC
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11

CRAESMEYER, GABRIEL R. "Tratamento de efluente contendo urânio com zeólita magnética." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10578.

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Made available in DSpace on 2014-10-09T12:42:11Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:05:08Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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12

Bagchi, Bratendu. "Computer modeling of Tennessee Valley Authority's coal based power plant at Kingston to predict the effluent to Emory river." 2006. http://etd.utk.edu/2006/BagchiBratendu/BagchiBratendu.pdf.

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13

(9812015), Chantal Lanctot. "Sub-lethal impacts of coal mine wastewater: Exploring behavioural responses in native aquatic organisms." Thesis, 2017. https://figshare.com/articles/thesis/Sub-lethal_impacts_of_coal_mine_wastewater_Exploring_behavioural_responses_in_native_aquatic_organisms/13443221.

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Coal mining represents a primary economic activity in Australia, but wastewater resulting from the extraction and refinement of coal can present risks for aquatic ecosystems. It is, therefore, imperative that the impacts of coal mine water releases on aquatic ecosystems are fully understood. The broad objectives of this thesis are to provide information on the potential toxicity and sub-lethal effects of coal mine wastewater on a range of native macroinvertebrate, amphibian, and fish species that are directly relevant to Central Queensland. In particular, the project evaluates the use of behav
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14

Janse, van Rensburg Darelle Tania. "Aquacultural use of heated effluents from coal-fired power stations : a feasibility study." Thesis, 2012. http://hdl.handle.net/10210/7115.

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M.Sc.<br>This project considers the feasibility of using heated cooling water from coal-fired power stations within Eskom for the culturing of C/arias gariepinus (Sharptooth catfish) and Oreochromis mossambicus (Mozambique tilapia). The work includes: an overview of world wide trends in power plant thermal effluent aquaculture, the identification of suitable power stations for aquaculture, long term monitoring of the physical and chemical characteristics of the cooling water at selected power stations, including the effects of the cooling water on the growth response, food conversion, conditio
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15

Holman, DP. "Solar evaporation of liquid effluent from composting toilets in cool temperate climates." Thesis, 2005. https://eprints.utas.edu.au/20621/7/whole_HolmanDavidPaul2005.pdf.

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This thesis investigates the design of a solar powered evaporator aimed at reducing visual intrusion of composting toilet infrastructure on the natural landscape. A series of tests were undertaken beginning in the laboratory, progressing to outdoor conditions at the University ofTasmania in Hohart and culminating in a field test in the Mt Field National Park in southern Tasmania. This field test involved the substitution of the field test evaporator for an existing unit at the Government Huts composting toilet facility. A method for gathering the data to enable matching of evaporator si
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16

Kros, Charles. "Radiological dose assessment for the leaking coil replacement on the Necsa radioactive effluent evaporator facility." Thesis, 2014.

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A dissertation submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science. Johannesburg, 2013.<br>In this study a dose assessment is used to demonstrate conformance to national and international dose limits for workers and meets the Necsa ALARA goals for a radiological repair task. The dose assessment methodology is based on international standards, principles and criteria and involves the process of determining radiological dose, through the use of exposure scenarios, bioassay results, monitori
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