Thesis (M.S.)--University of Alabama at Birmingham, 2010. / Title from PDF t.p. (viewed July 19, 2010). Includes bibliographical references (p. 35-37).

Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 373-387). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 373-387). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves 75-77). Also available on the Internet.

Thesis (M.Sc.Agric.) - University of KwaZulu-Natal, Pietermaritzburg, 2009. / Full text also available online. Scroll down for electronic link.

Wastewaters from intensive agricultural activities contain high concentrations of nitrogen and phosphorus that contributes to water management problems. During the past few years, there has been considerable interest in the use of constructed wetlands for treating surface water runoff from farmyards. If the contaminated runoff is not treated, this wastewater along with other non-point sources of pollution can seriously contaminate the surface water and groundwater. Integrated Constructed Wetlands (ICWs) are a type of free water surface wetlands. They are engineered systems that are designed, constructed and operated successfully for treating farmyard runoff in the British Isles. However, the long-term treatment performance of these systems, the processes involved in contaminant removal and the impact on associated water bodies are not well-known. The aims of this project were to assess the performance of full-scale integrated constructed wetlands and understand nutrient removal in them. Performance evaluation of these systems through physical, chemical and microbiological parameters collected for more than 7 years showed good removal efficiencies compared to international literature. The monitored nutrient concentrations in groundwater and surface waters indicate that ICW systems did not pollute the receiving waters. The role of plants (Typha latifolia) and sediment in removing nutrients was also assessed. More nitrogen and phosphorus were stored in wetland soils and sediments than in plants. The results demonstrate that the soil component of a mature wetland system is an important and sustainable nutrient storage compartment. A novel molecular toolbox was used to characterise and compare microbial diversity responsible for nitrogen removal in sediment and litter components of ICW systems. Diverse populations of nitrogen removing bacteria were detected. The litter component of the wetland systems supported more diverse nitrogen removing bacteria than the sediments. Nitrogen removing bacteria in the wetland systems appeared to be stochastically assembled from the same source community. The self-organising map model was applied as a prediction tool for the performance of ICW and to investigate an alternative method of analysing water quality performance indicators. The model performed very well in predicting nutrients and biochemical oxygen demand with easy to measure and cost-effective water quality parameters. The results indicate that the model was an appropriate approach to monitor wastewater treatment processes and can be used to support management of ICW in real-time.

This master´s thesis deals with the possibilities of innovation process water treatment. Specifically, to explore the use of sodium water glass and nanoiron in removing heavy metals from raw water at the drinking water treatment. For the comparison was used traditionally used coagulant, particularly liquid aluminum sulfate. The introductory part deals with the possibility of modifying the surface water during the treatment process such water into potable water. This chapter is a description of the quality of raw water used, then the description of currently used separation processes. Furthermore, they are described and commonly used types of treatment plants. Conclusion The introductory section deals with traditional coagulants and form a suspension. Another part of this master´s thesis has been devoted to the possibilities of innovation in the treatment of raw waters as drinking water, describes the options and features of the use of water glass and nanoiron. The following section describes the experimental part of this thesis. It is followed by the experimental results. The last chapter summarizes the acquired knowledge and commented on the measured values of the experimental part. This work also shows several specific projects using innovative technologies presented.

M. Tech (Department of Biotechnology, Faculty of Applied and Computer Sciences) Vaal University of Technology. / The presence of enteric viruses in drinking water poses a health risk to consumers. It is therefore very important for drinking water suppliers to provide water that is pathogen free and fit for human consumption. This can be achieved by an effective water treatment system that ensures the safety of water from the treatment plant until the water reaches the consumer. This study assessed the ability of a conventional water treatment system to remove viruses. The system consisted of three unit processes, namely, clarification, sand filtration and disinfection. These processes were simulated on a bench-scale to determine the effectiveness of each one at removing viruses. Clarification was conducted using a Phipps and Bird jar testing system and three different chemical treatments: (i) Polyelectrolyte (SUDFLOC 3835), (ii) a combination of lime and activated silica and (iii) a combination of lime, activated silica and ferric chloride. Sand filtration was simulated using a Phipps and Bird column filtration system. Disinfection was conducted using free chlorine. The findings from this study showed that the removal or inactivation of viruses increased with an increase in the concentration of chemicals added. For clarification, the combination of lime, activated silica and ferric chloride was the most effective treatment for the removal or inactivation of viruses. Sand filtration was found to be ineffective for the removal of viruses. Disinfection was shown to be the most effective process for the removal or inactivation of viruses. While clarification, sand filtration and disinfection did not remove or inactivate viruses equally, the entire treatment chain is still essential. This is because even if a barrier does not directly remove viruses it ensures that subsequent processes can function effectively. Overall the treatment processes should not be considered as discrete barriers but rather an integrated system that must function throughout to avoid a risk to customers.

Orientador: Carlos Gomes da Nave Mendes / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo / Made available in DSpace on 2018-08-18T02:21:58Z (GMT). No. of bitstreams: 1 Magalhaes_AlexFabianoRibeirode_D.pdf: 14333418 bytes, checksum: ee01e311442ea58a94ba5bd94ef4790c (MD5) Previous issue date: 2010 / Resumo: Através de informações do Sistema Nacional de Informações sobre Saneamento, verifica-se baixos índices de atendimento por água potável na Região Norte do Brasil, que chega a um percentual menor do que 40% no estado de Rondônia (SNIS (2005)). De maneira a disponibilizar tecnologias para tratamento das águas brancas e pretas da Região Amazônica para o atendimento a esta população, este estudo desenvolveu novas tecnologias, aptas para o tratamento destas águas. Para este desenvolvimento, foram implantadas unidades em escala de protótipo em Manaus-Am, para tratamento das águas pretas, e em Careiro da Várzea-AM, para tratamento das águas brancas, sendo a eficiência destas monitoradas através dos parâmetros de pH, turbidez, cor aparente, cor verdadeira e coliformes termotolerantes. Disponibiliza-se uma tecnologia para o tratamento das águas brancas da Amazônia composta de fases de pré-filtração dinâmica com taxa de 2,4 m³/m².d, préfiltração vertical ascendente em camadas com taxa de 4,3 m³/m².d, filtração lenta com taxa de 1,7 m³/m².d e a injeção de solução coagulante de Sulfato Alumínio Ferroso com dosagem de 30 mg/L, posicionada na tubulação de saída do pré-filtro dinâmico. Também se disponibiliza uma tecnologia para o tratamento das águas pretas da Amazônia composta de fases de pré-filtração dinâmica com taxa de 2,4 m³/m².d, préfiltração vertical ascendente em camadas com taxa de 4,3 m³/m².d, filtração lenta com taxa de 1,7 m³/m².d e filtração em carvão ativado granular com taxa de aplicação de 6,1 m³/m².d, sendo esta última posicionada após o filtro lento / Abstract: Through information from the National System of Sanitation Information, there is a low attendance rate for drinking water in northern Brazil, which arrives at a percentage lower than 40% in the state of Rondônia (SNIS (2005)). In order to provide technologies for water treatment of white and black waters of the Amazonian region to assist this population, this study developed new technologies, able to treat these kind of water. For this development, were implemented at scale prototype units in Manaus-Am, for treatment of black water, and the Careiro da Várzea - AM, for the treatment of white waters, the efficiency of these treatment was monitored through the parameters of pH, turbidity, color Apparent, true color and thermotolerant coliforms. Provides a technology for the treatment of white waters of the Amazonian consisted of the dynamic pre-filter with a rate of 2.4 m³/m².d, pre-filter layers in vertical upward with a rate of 4.3 m³/m².d, slow filter with a rate of 1.7 m³/m².d and the injection of Ferrous Sulfate Aluminum coagulant with a dose of 30 mg/L, positioned in the outlet dynamic pre-filter pipe. It also provides a technology for the treatment of the black waters of the Amazonian consisted of the dynamic pre-filter with a rate of 2.4 m³/m².d, pre-filter layers in vertical upward with a rate of 4.3 m³/m².d, slow filter with a rate of 1.7 m³/m².d and filter with granular activated carbon with a rate of 6.1 m³/m².d, this one positioned after the slow filter / Doutorado / Saneamento e Ambiente / Doutor em Engenharia Civil

The aim of the dissertation is an overview of the historical development and work carried out on the never realized regulation and the construction of the city of Prague. This development is described thematically on the basis of the different areas of the proposed regulatory plan. At the same time, several long-term construction projects are selected, in which the process of designing the project, its assessment and subsequent implementation into the regulatory plan is shown in detail in the form of a historical probe. The work is planted between the two world wars, ie. between 1919 and 1939, with a thematic overlap over both set dates. Keywords: Regulation, Urbanisation, Prague, State commission for regulation of Prague and suburbs, New Town, Main railway station, Masaryk Railway station, Nusle bridge, Petřín communication, Letná plains, Invalidovna, Water treatment plant, Water plant for undrinkable water.