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Dissertations / Theses on the topic 'QUAL2Kw'

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Published: 4 June 2021
Last updated: 26 July 2025

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1

Mendes, Daniel Antoniazzi Ribeiro. "Aplicação do modelo QUAL2Kw para avaliação da capacidade de assimilação de cargas pontuais no Rio Itapanhaú." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-17082010-111717/.

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A existência de fontes pontuais em rios e córregos implica em impactos a jusante que podem comprometer os usos futuros desses recursos hídricos. Para tanto, a modelagem matemática apresenta-se como uma ferramenta fundamental na avaliação dessas descargas no sentido de avaliar o atendimento legal e subsidiar o licenciamento de atividades junto aos órgãos competentes. O principal objetivo do presente trabalho foi verificar, através de simulações numéricas com o modelo QUAL2Kw, a capacidade de assimilação de cargas pontuais em um trecho do Rio Itapanhaú para oxigênio dissolvido, demanda bioquímic
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2

Rôdas, Roger Daniel. "Variáveis limnológicas e utilização do modelo hidrológico QUAL2Kw na proposição de cenários para o rio Sorocabuçu (SP)." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-04122013-152853/.

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O reservatório de Itupararanga localizado na UGRHI-10 é principal manancial abastecedor da cidade de Sorocaba e destaca-se como o mais importante pelo seu porte e capacidade de regularização de vazão. Este reservatório tem como seus principais formadores os rios Sorocabuçu, Sorocamirim e Una e observou-se um decaimento na qualidade de sua água durante os últimos anos. Sendo assim, este estudo teve como objetivo avaliar a contribuição das principais variáveis físicas e químicas do rio Sorocabuçu para o reservatório de Itupararanga, avaliando o possível impacto no mesmo, visando fornecer subsídi
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3

Hobson, Andrew J. "Using QUAL2Kw as a Decision Support Tool: Considerations for Data Collection, Calibration, and Numeric Nutrient Criteria." DigitalCommons@USU, 2013. http://digitalcommons.usu.edu/etd/1511.

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The in-stream water quality model, QUAL2Kw, can provide guidance in watershed management decisions by linking changes in nutrient loads to responses in water quality. This model is particularly useful for determining wasteload allocations, aiding in total maximum daily load analyses, and developing numeric nutrient criteria. Unfortunately, states struggle to balance the data collection and modeling requirements to accomplish many of these water quality management tasks due to limited resources. This commonly results in routine data collection and monitoring efforts that do not satisfy the data
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4

AGARWAL, ROHIT. "APPLICATIONS OF QUAL2KW TOOL FOR WASTE ALLOCATION ON RIVER YAMUNA IN NATIONAL CAPITAL TERRITORY OF DELHI, INDIA." Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18410.

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Increasing water pollution is a rising concern due to industrial and domestic waste disposal in water bodies. River in the Delhi vicinity is highly polluted for the past few years due to receiving a large amount of wastewater disposal, where the in-organic waste of industrial disposal and domestic disposal are drained from 16 drainage points in the stretch of 21.9 Kilometres in river Yamuna. The purpose of this study is to investigate the cause of the pollution and compare it with the permissible parameter values using software tool. Using the Qual2Kw tool, this study analysed the water
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5

Fuentes, Olivares Iván Antonio. "Evaluación de la norma secundaria de calidad ambiental para la protección de las aguas continentales superficiales de la cuenca del rio BíoBío." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/113003.

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Ingeniero Civil<br>En Chile, se inició en el año 2004 el proceso de la dictación de las Normas Secundarias de Calidad Ambiental (NSCA), con el fin de salvaguardar el aprovechamiento del recurso hídrico, maximizando beneficios sociales y económicos. Bajo esta perspectiva y por ley, considerado en el Análisis General de Impacto Económico y Social (AGIES) que debe acompañar los proyectos de NSCA, se hace imprescindible la incorporación de elementos socio-económicos para evaluar el real impacto de la dictación de este tipo de normas. En este contexto, el objetivo principal de este trabajo fue con
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6

Soares, Samara Silva. "Modelagem da qualidade da água em um trecho do rio dos Bois, Goiás." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8365.

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Submitted by Liliane Ferreira (ljuvencia30@gmail.com) on 2018-04-20T11:40:19Z No. of bitstreams: 2 Dissertação - Samara Silva Soares - 2018.pdf: 2389318 bytes, checksum: 06b87e95368f7089f20eac8dea5806bb (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-04-23T11:48:56Z (GMT) No. of bitstreams: 2 Dissertação - Samara Silva Soares - 2018.pdf: 2389318 bytes, checksum: 06b87e95368f7089f20eac8dea5806bb (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made avai
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Bottino, Flávia. "Estudo experimental e matemático de qualidade da água com base na ecohidrologia fluvial de pequenas bacias: estudo de caso do rio Canha, Baixo Ribeira de Iguape, SP." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-16072008-193746/.

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Os cursos d\'água são ecossistemas predominantemente heterotróficos com gradiente longitudinal e possuem uma capacidade natural de depurar a matéria orgânica. Entretanto, o lançamento indiscriminado de efluentes ultrapassa a capacidade de suporte do ambiente aquático. O principal objetivo do presente estudo foi analisar como a qualidade da água do rio, em termos experimentais e de modelagem matemática, expressa processos ecohidrológicos nas escalas espaço-temporais, para variações de variáveis físicas, químicas e hidrológicas. O presente estudo foi conduzido através da abordagem de bacias embu
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8

Belmonte, Carmine. "Modellazione della qualita delle acque superficiali: "applicabilita e validazione del QUAL2K sull'asta principale del Canale Emiliano Romagnolo"." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6768/.

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Scopo dell'elaborato è quello di verificare l'applicabilità del modello di qualità fluviale, monodimensionale, QUAL2K al sistema idrico del CER. Il risultato conseguito rispecchia le ipotesi iniziali dello studio. Il modello sotto determinate ipotesi bene si presta a modellare le caratteristiche idrauliche e di qualità del Canale Emiliano Romagnolo.
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PALMIERI, VIVIAN. "CALIBRATION OF QUAL2E MODEL FOR CORUMBATAÍ RIVER (SP)." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4408@1.

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A previsão dos efeitos poluidores sobre uma bacia hidrográfica é uma constante necessidade para os órgãos de gestão ambiental e para os tomadores de decisão neste âmbito. Dentro deste contexto, os modelos matemáticos que permitam prever danos ou melhorias na qualidade de água de bacias hidrográficas são importantes ferramentas para este fim. O Qual2E desponta como uma destas ferramentas, de acesso livre, aplicável à sistemas fluviais, unidimensionais, bem misturados e de fluxo constante. Este trabalho propõe uma aplicação do Qual2E para o rio Corumbataí, localizado no interior do Esta
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10

Richens, Jared. "Evaluating the Impact of External Carbon Source in Laboratory-Based Denitrification Rate Experiments." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/6912.

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Limitations in the quality of transformation rates used with water quality models such as QUAL2K have led to the need to identify methods that can effectively and accurately determine these rates. During the early stages of method development of a Utah Department of Environmental Quality (Utah DEQ) funded project seeking to identify such methods, it was determined that under certain situations external carbon amendment may be required to successfully determine denitrification rates. The focus of this study was to evaluate the potential impacts that introducing external carbon sources may have
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Goktas, Recep Kaya. "Application Of Genetic Algorithms To Calibration And Verification Of Qual2e Model." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605591/index.pdf.

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The objective of this study is to develop a calibration and verification tool for the QUAL2E Model by using Genetic Algorithms. In the developed optimization model, an objective function that is formulated on the basis of the sum-of-least squares approach aiming at minimizing the difference between the observed and simulated quantities was used. In order to perform simultaneous calibration and verification, verification of the calibrated results was treated as a constraint and inserted into the objective function as a penalty function. The performance of the optimization model was tested for
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12

Garcia, Juliana. "A qualidade da água, o processo de autodepuração e a proposição de cenários para gerenciamento sustentável do rio Sorocamirim (SP)." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-20072017-102247/.

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Nos últimos anos tem-se agravado continuamente os problemas relacionados à poluição dos mananciais, principalmente em decorrência de lançamentos de esgotos sem qualquer tipo de tratamento e do desenvolvimento agrícola e industrial, evidenciando que o estudo da dinâmica das águas superficiais e o gerenciamento de bacias hidrográficas sejam cada vez mais necessários e fundamentais para garantir os usos múltiplos das águas. O presente estudo teve como objetivo principal avaliar as características limnológicas do rio Sorocamirim, visando fornecer subsídios para a gestão deste recurso hídrico e à g
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13

Landaverde, Velarde Lizzette del Carmen. "Modelación del oxígeno disuelto y DBO en el Río Pesquería utilizando QUAL2E /." Consultar esta Tesis en formato digital a través de la Biblioteca Digital. Acceso limitado a usuarios del Tecnológico de Monterrey, 2003. http://biblioteca.itesm.mx/cgi-bin/nav/ficha?cual=doctec:72380.

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14

Baldochi, Maria Aparecida. "Utilização do modelo QUAL2E como apoio ao gerenciamento da qualidade das águas da bacia do córrego dos Bagres." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-01122016-130751/.

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No presente trabalho o modelo de qualidade de águas superficiais QUAL2E foi utilizado como apoio ao gerenciamento das águas da bacia do Córrego dos Bagres, localizada no Estado de São Paulo (20º30\' e 20º40\'35\'\'S e 47º35\'2\'\' e 47º20\'18\'\'W). A modelagem foi aplicada em toda a extensão do curso da água, cerca de 44 km, simulando o Oxigênio Dissolvido e a Demanda Bioquímica de Oxigênio. Procurou-se também determinar os mais importantes fatores que afetam a concentração de oxigênio dissolvido no curso d\'água. O modelo foi calibrado e validado de acordo com dados de monitoramento da agênc
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15

Benassi, Simone Frederigi. "Estudo das variáveis limnológicas e do processo de autodepuração na \"descontinuidade serial\" do Ribeirão Bonito (SP)." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-04022016-101020/.

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Este trabalho teve como objetivo estudar o comportamento espaço-temporal das variáveis limnológicas, no Ribeirão Bonito (SP) a fim de avaliar a descontinuidade ocasionada pelas fontes poluidoras e o processo de autodepuração. Para tanto, foram determinadas variáveis físico-químicas, biológicas, climatológicas e hidrológicas, no eixo longitudinal do rio e utilizado como ferramenta para diferentes cenários de simulações das concentrações de oxigênio dissolvido, o modelo QUAL2E. Foi possível observar, que muitas das variáveis limnológicas estudadas no Ribeirão Bonito sofrem \"descontinuidades\" d
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Molinari, Riccardo. "Rimozione dei composti azotati nel Bacino 1 di affinamento reflui urbani trattati dal depuratore Santerno di Imola.Verifiche su impianto pilota." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Lo scopo di tesi è valutare la rimozione dei composti azotati e degli elementi biochimici presenti all’interno di un’ impianto pilota, che rappresenta in scala ridotta il primo bacino di finissaggio.Il quale posto alla fine di una linea di trattamento reflui a fanghi attivi, riceve una parte delle acque di scarico ed effettua un trattamento di finissaggio grazie alla presenza di una macrofita galleggiante, la Lemna Minor. Infine si sono comparati i dati reali con dati modellati dal Qual 2K. Per lo studio sono state effettuate diverse campagne di campionamento ben sei, ed in ognuna delle quali
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BÁRBARA, Viníciu Fagundes. "Uso do modelo qual2e no estudo da qualidade da água e da capacidade de autodepuração do Rio Araguari-AP (Amazônia)." Universidade Federal de Goiás, 2006. http://repositorio.bc.ufg.br/tede/handle/tde/593.

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Made available in DSpace on 2014-07-29T15:01:40Z (GMT). No. of bitstreams: 1 Viniciu Fagundes Barbara em PDF.pdf: 2483097 bytes, checksum: 5b34f64b65562b6c494035ae3e2630ee (MD5) Previous issue date: 2006-12-12<br>The current investigation presents a characterization of the hydraulics and water quality of the medium course of the Araguari River, State of Amapá, Brazil, which has an approximate extension of 120 km. The Araguari River is the main water resource of the State of Amapá, located in the domains of the Amazon (the greatest tropical forest of the planet) in a region with great hydropo
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Huhnke, Christopher Robert. "Factors Affecting Minimum Dissolved Oxygen Concentration in Streams." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1533910328223568.

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Silva, Tatiana Dumke da. "Integração dos modelos QUAL2K e WEAP para modelagem da qualidade da água em corpos de água receptores de efluentes de ETEs em áreas de adensamento urbano no Distrito Federal." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.11.D.19865.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental, 2015.<br>Submitted by Fernanda Percia França (fernandafranca@bce.unb.br) on 2016-01-21T17:34:06Z No. of bitstreams: 1 2015_TatianaDumkedaSilva.pdf: 5255303 bytes, checksum: 711a82519c1ecf8f130180a526c85efe (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2016-04-05T21:35:53Z (GMT) No. of bitstreams: 1 2015_TatianaDumkedaSilva.pdf: 5255303 bytes, checksum: 711a82519c1ecf8f130180a526c85efe (MD5)<br>Made available in DSpace on 2016-04-05T21
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Capitelli, Silvia. "Analisi e valutazione dello scarico in un corpo idrico superficiale di un depuratore di uno stabilimento alimentare: confronto tra trattamento con fanghi attivi e MBBR." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Il presente elaborato si pone l'obiettivo di confrontare ed analizzare due configurazioni diverse di un depuratore di acque reflue appartente ad un'azienda che produce alimenti. Le configuarazioni in questione sono: fanghi attivi e MBBR (Moving Bed Biofilm Reactor). L'analisi è stata effettuata mediante un modello di qualità delle acque, in particolare Qual2k, software gratuito promosso dall' Environmental Protection Agency (EPA). Infatti, è stato valutato il comportamento del corpo idrico in cui sversa lo scarico dell'azienda, prima nel caso di trattamento a fanghi attivi, poi nel caso di tra
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Marteleira, Rita Gonçalves Simões. "Avaliação da carga poluente afluente a uma massa de água – rio de S. Domingos." Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/6318.

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Dissertação para obtenção do Grau de Mestre em Engenharia do Ambiente – Perfil de Engenharia Sanitária<br>A crescente prática de desportos aquáticos de ondas tem vindo a levantar a questão da monitorização da qualidade das águas balneares, fora da sazonalidade típica destas análises, sendo que os praticantes destas modalidades, em cenários de Inverno, se encontram muitas vezes em situações de risco devido à exposição a águas contaminadas. Foi nesta óptica que se seleccionou o rio de S. Domingos e as praias de Molhe Leste e Supertubos,em Peniche, como objectos de estudo desta dissertação, sen
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Rodrigues, Roberta Baptista. "SSD RB - sistema de suporte a decisão proposto para a gestão quali-quantitativa dos processos de outorga e cobrança pelo uso da água." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-16092005-135904/.

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O presente trabalho apresenta-se como um marco inovador na área de gestão de recursos hídricos, já que o mesmo consegue inserir aspectos de qualidade da água para os processos de outorga e cobrança pelo uso da água, de forma articulada a todos os instrumentos da Política Nacional de Recursos Hídricos (Lei 9.433 de 1997), possibilitando a efetiva aplicação da Política e da Resolução n° 48, de 21 de março de 2005, que estabelece critérios gerais para a cobrança pelo uso dos recursos hídricos. Traz também para a Política um novo conceito, o de Justiça Hídrica, ou seja, quem capta água com qualida
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Cantagalli, Matteo. "Analisi del funzionamento di una parte del sistema di scolo del consorzio di Bonifica Parmigiana Moglia-Secchia con particolare riguardo agli aspetti di qualità dei deflussi." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amslaurea.unibo.it/134/.

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Bianchi, Stefano. "Analisi del funzionamento idraulico e degli aspetti di qualità di una parte del comprensorio di bonifica Parmigiana Moglia Secchia." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amslaurea.unibo.it/438/.

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Meng-Feng, Guo, and 郭孟鋒. "Application of QUAL2Kw Model for Water Quality Assessment and Pollution Reduction Scenarios Simulation in De-Zi-Kuo River." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2nexdy.

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碩士<br>國立宜蘭大學<br>環境工程學系碩士班<br>107<br>The water quality model can be applied to predict the effects of river remediation projects and evaluate the feasibility of pollution reduction. Yilan County has five important rivers , including the Lanyang river, Shincheng river, Suao river, Nanao river and Dezikuo river. According to the annual monitoring results of Environmental Protection Administration, the water quality of five important rivers in Yilan County are generally well. However, Dezikuo river in recent years in Cijie Bridge station monitoring, according to the results of water quality pollu
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Chen, Chen-Hua, and 陳貞樺. "A Study of Beigang River Water Quality Using QUAL2K Model." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/13790370022571263529.

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碩士<br>國立中興大學<br>水土保持學系所<br>95<br>The Environmental Protection Administration (EPA) regularly monitors the water quality in Taiwan. The measured results are expressed by RPI (river pollution index), consisting of dissolved oxygen (DO), suspended solid, NH3-N, biochemical oxygen demand (BOD) to assess the water quality. This study investigated the dissolved oxygen and oxygen demand of Beigang River which is the one of the serious polluted rivers in Taiwan.Pearson bivariate correlation analysis is used to examine the relationship for each pair of water quality factors. QUAL2K was used to simulate
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Tseng, Shu-Chun, and 曾淑君. "The Application of QUAL2K for River Pollution Control in Taichung City." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/48595803071026280901.

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碩士<br>逢甲大學<br>環境工程與科學所<br>98<br>This research uses a water quality model—QUAL2K—to simulate and analyze the water quality in Hansi and Fazih River near Taichung City under several water pollution control scenarios. Previous studies have indicated that major BOD and NH3-N sources in Fazih River are domestic sewage; additional sources are industrial wastes, livestock wastes, and irrigation water returns. Due to lack of monitoring data, the evaluation can not be performed in Hansi River. Therefore, only the Fazih River is evaluated. The pollution control scenarios under consideration in this stu
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Liou, Chun-Cing, and 劉醇慶. "A Study of Nitrogen Pollution Reduction by QUAL2K in Lain-Yang River." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/25608296514229983625.

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碩士<br>國立東華大學<br>環境政策研究所<br>94<br>In recent years, as the water pollution problem gets worse, the management problems of the river basins is becoming more evident. Nowadays, as the demands of the environment of water resources increases, the concept of managing river basins for it's overall improvement has become a trend. This research is based upon the results of experimentation of nitrogen nutrition pollution in the river basin of Lain-Yang and investigation of domestic river basin management strategies. The aims of the research includes (1) study of different types of domestic and interna
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Liao, Jun-qiang, and 廖俊強. "The Application of QUAL2K for Water Pollution Control in Old-Zhuoshui River." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/88168725150319386925.

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碩士<br>逢甲大學<br>水利工程與資源保育研究所<br>96<br>In recent years, population increase and economy fast development, the social milieu significantly changes a living modernization and makes various pollution sharply increase of Taiwan. Domestic wastewater, Industrial wastewater, Livestock wastewater in great quantities, result in the water pollution gradually serious. River pollution because of the pollutant not dealt carefully with and entered the river and exceed the river to permit ability, and change the river normal use of the quality influence of water, then endanger peoples health and living environm
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Hsu, Chang-Chun, and 許正俊. "Management strategy development via QUAL2K model – A case study of Xiaoli Creek." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/70217572101509377151.

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碩士<br>國立中央大學<br>環境工程研究所在職專班<br>104<br>There have been frequent sever water pollution which affect the water quality nearby in urban areas and river basins in recent years. As a result, the first article of Water Pollution Control Act was enacted with the purpose to prevent water pollution, to remediate the polluted water body, to ensure the quality of water resources, and to protect the ecology. The purpose of this work is to develop management strategy based on water quality model, QUAL2K using a case study, Xiaoli Creek, Hsinchu. QUAL2K is employed to simulate the amount of pollution and the
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Huang, Chih-Chuan, and 黃稚筌. "The Application of QUAL2K for Water Pollution Remediation in Lao-Jie River." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/00841614778831148032.

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Gao, Yu-Chi, and 高育琦. "The Application of QUAL2K for Water Pollution Remediation in Mei-Lun River." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/54867056454630042363.

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碩士<br>國立宜蘭大學<br>環境工程學系碩士班<br>101<br>The past cases of river pollution remediation, mostly for resolved a single issue to the project objectives. Many environmental factors influence each other, often to leading the effectiveness of remediation not as good as expected. Building water quality model can be applied to assess the effectiveness and accurate estimates for the reductive strategies. The Meilun River at Hualien County streams through dense population activities in the region. A large number of domestic sewage and livestock wastewater resulting the monitoring items at midstream and downs
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Chen, Chien-nan, and 陳建男. "Development of water quality management strategies for the Maoluo River watershed using QUAL2K." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/93734825726599225830.

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碩士<br>國立暨南國際大學<br>土木工程學系<br>103<br>Nantou County in Taiwan is known to be famous for its living and recreational environment. Due to industrial developments and concentration of the population density to the metropolitan area, Nantou City, river pollution has increased. In Nantou County, only the Zhuoshui River and Mauluo River basins have moderately polluted water quality. The Zhuoshui River basin has a high concentration of natural suspended solids (SS) while the Mauluo River basin has industrial wastewater and sewage that contribute to the deterioration of water quality. Therefore, this stu
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Huang, Pei-Yu, and 黃珮瑜. "Evaluation of Constructed Wetland to Improve Da-Han Creek Water Quality by QUAL2K Model." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/79984350230133810191.

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碩士<br>淡江大學<br>水資源及環境工程學系碩士班<br>100<br>The water quality model QUAL2K is applied in this study to simulate the improvement of water quality by constructed wetlands. The study area of this study is midstream and downstream of Da-Han Creek with its eight constructed wetlands. the purpose of this study is to: (1) evaluate the improvement and effects of water quality (BOD, SS and NH3-N) of Da-Han Creek by constructed wetland, (2) evaluate the effect of flow scenarios (Q90, Q75, Q50) on water quality improvement, and (3) explore the contribution of each constructed wetlands for water quality improve
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鄭湘琳. "The Application of QUAL2K to Pollution Control Strategies for Han River in Taichung City." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/99014652449792308345.

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碩士<br>逢甲大學<br>環境工程與科學學系<br>102<br>Abstract Due to the small proportion of sewer system in Taiwan, the domestic sewage directly discharges without treatment, and other sources such as industrial wastewater, livestock wastes and irrigation water returns can not enough strictly control cause the water quality to deteriorate gradually. Because the river pollution index(RPI) is moderate or serious pollution in Han River near Taichung City, This research uses a water quality model, QUAL2K, to simulate and analyze the water quality in Han River near Taichung City under several water pollution control
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"Calibration of qual2e model for corumbataí river (sp)." Tese, MAXWELL, 2003. http://www.maxwell.lambda.ele.puc-rio.br/cgi-bin/db2www/PRG_0991.D2W/SHOW?Cont=4408:pt&Mat=&Sys=&Nr=&Fun=&CdLinPrg=pt.

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Polák, Karel. "Posouzení samočistící schopnosti vodního toku vlivem revitalizačních úprav." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-179385.

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Rate of pollution degradation in stream depends on its self-purification ability. Intensity of self-purification capacity differs by various streams and except other factors it is notable affected by the character of the watercourse. Due to rugged watercourse, longer detention time and more favorable conditions for resurgence the self-purification capability of restored streams is supposed to be higher than the self-purification capability of technically modified streams. In this thesis the change of water quality indicators in technically modified (923 m) and restored (264 m) reach of Haraska
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Chen, Long-Kai, and 陳榮凱. "A Study of QUAL2K Model Applied to Simulate a Constructed Wetland with Long and Narrow Shape." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/12072552936782558270.

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碩士<br>國立高雄第一科技大學<br>環境與安全衛生工程所<br>95<br>Kao Ping River is the most main pollution source in the basin of Wu Lou Greek. The flow value is about the average discharge rate pro year of 10.9 cms, and the concentration of BOD is 16.5 mg/L. The quantity of polluted water is more then 13800kg/d. As the concentration of BOD is between 17 mg/L and 80 mg/L in the low water period, the Constructed Wetlands is used to naturally clean the polluted water in the Wu Lou Greek in order to decrease the pollution through the control of the water source. In this study the QUAL2E water quality model is used to s
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Lin, Chia-Yu, and 林嘉佑. "Application of Simulated Annealing to Optimize Parameters of the QUAL2E Model." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/64076221175303005895.

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碩士<br>國立臺灣大學<br>生物環境系統工程學研究所<br>93<br>Water quality model is often used in developing pollution control plan and estimating the assimilative capacity. The QUAL2E is one of the most favorite water quality models. This study applies simulated annealing to optimize parameters of the QUAL2E model. The TouChen creek is chosen as a study area. For letting the model reaching water balance, the study proposes a measure to adjust the flow data before optimizing the parameters. In the process of parameter optimization, the study area is divided into three kinds of zonations and the results of different
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Huang, Jih-Sheng, and 黃日昇. "Application of QUAL2K to Establish the Water Quality Model and Management Strategies for Kao-Ping and Tung-Kang Rivers." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/60892143088636644518.

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碩士<br>國立屏東科技大學<br>環境工程與科學系所<br>97<br>Water resource is important to the daily life of people, and also the place where all contaminants equilibrates and accumulates. The exclusive environmental characteristics increase the difficulties to develop the water resources in Taiwan. Allocation and management of water resources become increasingly difficult due to the disproportionate distribution of rainfall on spatial-time basis and precipitous topography. The water quality of the rivers, which influences the people’s life and health, is quite important to the environment and exploitation of water
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Wu, Pei-chien, and 吳佩倩. "Application of QUAL2K for Water Quality Modeling and Reduction Strategies of the Major Pollution Reaches in the De-Zi-Kuo River." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/19198281510253859236.

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碩士<br>國立宜蘭大學<br>綠色科技學程碩士在職專班<br>101<br>Yilan County have major rivers such as Lanyang river, Shincheng river, Su-ao river, Nanao river, De-zi-kuo river and other rivers. According to EPA “National Environmental Water Quality Information” as quoted by the five major rivers on Yilan County, the monitoring results over the years are good. However, in recent years, the monitoring results at Cijie Bridge station of the De-zi-kuo river show that the water quality class often reaches moderate to severe pollution. The main pollution item is ammonia nitrogen, followed by suspended solids and biochemica
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Tang, Ping-Kuei, and 湯平貴. "A Study on the Variations of Model Performance between QUAL2K and WASP for a River with High Ammonia and Organic Matters." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/98285900468289540267.

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博士<br>國立屏東科技大學<br>環境工程與科學系所<br>101<br>Two water quality models, QUAL2K (River and Stream Water Quality Model) and WASP (Water Quality Analysis Simulation Program), were employed to calibrate and verify the biochemical parameters spatially and temporally based on the data collected from 1965 to 2012, four surveys sampled on 25, 27 of November and 4, 8 of December in 2012, and three surveys in March 13 of 2008, October 9 of 2010, January 7, 2012. Furthermore, sensitivity evaluation, allowable discharge amounts, and cost analysis were also conducted. Through the calibration, validation, and re-va
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Hung, Teng-yi, and 黃騰毅. "QUAL2K Applied on the derivation of the optimal sanitary sewer collection rates in the Non-tidal influenced section of Damshui River." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/54852229799797234514.

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碩士<br>國立聯合大學<br>環境與安全衛生工程學系碩士班<br>94<br>Tidal not influenced section of Dan-Shui River located in Taipei county, consisted of three major branches, named Keelung River , Xin-Dian Stream and Da-Han Stream was investigated to achieve the optimal house connection percentage for fitting the standard and classification of surface water quality rule in Taiwan. QUAL2K water quality model was adopted to combine with GIS for verifying both of simulation and monitored data. The results of this study were categoried as follows: 1.The most suitable house connection sewers rate in the non-tidal influenced
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LIU, SI-MING, та 劉思明. "QUAL2E在河川涵容能力求法上之應用". Thesis, 1988. http://ndltd.ncl.edu.tw/handle/08699600000772823535.

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Chang, Hsiu-Chin, and 張秀琴. "Use QUAL2E Water Mold to Simulate the Influence in Damshui River by Building up Sewage Sewer." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/53413091592380132132.

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碩士<br>中原大學<br>土木工程研究所<br>92<br>Abstract In this research, the range of all river basin is consist of several mainstreams including Danshui River, Keelung River, Sindian River, Tahan River. Taipei City is used as a main area of population <a href="http://www.ntsearch.com/search.php?q=distribution&v=56">distribution</a> as well as the definition of boundary of building sewage sewer. In this investigation, the mode of QUAL2E is the simulator of <a href="http://www.ntsearch.com/search.php?q=water&v=56">water</a> quality of Danshui River. With this substantial data and completed examination, a set
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(6703574), Femeena Pandara Valappil. "IMPROVING NUTRIENT TRANSPORT SIMULATION IN SWAT BY DEVELOPING A REACH-SCALE WATER QUALITY MODEL." Thesis, 2019.

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<p>Ecohydrological models are extensively used to evaluate land use, land management and climate change impacts on hydrology and in-stream water quality conditions. The scale at which these models operate influences the complexity of processes incorporated within the models. For instance, a large scale hydrological model such as Soil and Water Assessment Tool (SWAT) that runs on a daily scale may ignore the sub-daily scale in-stream processes. The key processes affecting in-stream solute transport such as advection, dispersion and transient storage (dead zone) exchange can have considerable ef
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