Valoración de unidades de filtración lenta en arena como alternativa para la remoción de contaminación bacteriológica en aguas residuales de efluentes secundarios anaerobios PDF Download
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Author: Kelly Andrea Aguirre Osorio Publisher: ISBN: Category : Languages : es Pages :
Book Description
Resumen: En nuestro país, los vertimientos de aguas residuales afectan los cuerpos de agua y a la salud pública con contaminación orgánica y organismos patógenos; específicamente en las áreas rurales los sistemas de tratamiento más utilizados son los sistemas sépticos, y en los últimos años ha aumentado la aplicación de humedales construidos para la remoción de materia orgánica, principalmente como sistemas de tratamiento secundario, siendo pocos los casos en donde se llega a un nivel de tratamiento superior. Dado que la mayoría de los sistemas convencionales de tratamiento de aguas residuales liberan una gran cantidad de microorganismos, la desinfección de efluentes secundarios es necesaria para salvaguardar la salud pública y el medio ambiente. Se requieren entonces, tecnologías apropiadas, confiables y seguras para la desinfección de aguas residuales, particularmente en países en desarrollo. Por lo tanto, y ante la necesidad de disminuir la contaminación bacteriológica en aguas superficiales, el objetivo principal de esta investigación fue evaluar la efectividad y determinar variables de operación de unidades de filtración lenta en arena (FLA) para la remoción de organismos patógenos de aguas residuales provenientes de efluentes secundarios anaerobios a escala piloto. El montaje experimental se llevó a cabo en la Planta de Tratamiento de Aguas Residuales de la Universidad Tecnológica de Pereira. Se evaluaron como factores la carga hidráulica (alta y baja), el diámetro de la arena (fina y gruesa) y el tratamiento secundario preliminar, filtro anaerobio de flujo ascendente (FAFA) y humedal vertical (HV). Las variables de respuesta principales correspondieron a organismos indicadores tales como coliformes totales y E-Coli y parásitos como huevos de helminto...
Author: Kelly Andrea Aguirre Osorio Publisher: ISBN: Category : Languages : es Pages :
Book Description
Resumen: En nuestro país, los vertimientos de aguas residuales afectan los cuerpos de agua y a la salud pública con contaminación orgánica y organismos patógenos; específicamente en las áreas rurales los sistemas de tratamiento más utilizados son los sistemas sépticos, y en los últimos años ha aumentado la aplicación de humedales construidos para la remoción de materia orgánica, principalmente como sistemas de tratamiento secundario, siendo pocos los casos en donde se llega a un nivel de tratamiento superior. Dado que la mayoría de los sistemas convencionales de tratamiento de aguas residuales liberan una gran cantidad de microorganismos, la desinfección de efluentes secundarios es necesaria para salvaguardar la salud pública y el medio ambiente. Se requieren entonces, tecnologías apropiadas, confiables y seguras para la desinfección de aguas residuales, particularmente en países en desarrollo. Por lo tanto, y ante la necesidad de disminuir la contaminación bacteriológica en aguas superficiales, el objetivo principal de esta investigación fue evaluar la efectividad y determinar variables de operación de unidades de filtración lenta en arena (FLA) para la remoción de organismos patógenos de aguas residuales provenientes de efluentes secundarios anaerobios a escala piloto. El montaje experimental se llevó a cabo en la Planta de Tratamiento de Aguas Residuales de la Universidad Tecnológica de Pereira. Se evaluaron como factores la carga hidráulica (alta y baja), el diámetro de la arena (fina y gruesa) y el tratamiento secundario preliminar, filtro anaerobio de flujo ascendente (FAFA) y humedal vertical (HV). Las variables de respuesta principales correspondieron a organismos indicadores tales como coliformes totales y E-Coli y parásitos como huevos de helminto...
Author: Damir Brdjanovic Publisher: IWA Publishing ISBN: 1780404638 Category : Science Languages : en Pages : 472
Book Description
In 1982 the International Association on Water Pollution Research and Control (IAWPRC), as it was then called, established a Task Group on Mathematical Modelling for Design and Operation of Activated Sludge Processes. The aim of the Task Group was to create a common platform that could be used for the future development of models for COD and N removal with a minimum of complexity. As the collaborative result of the work of several modelling groups, the Activated Sludge Model No. 1 (ASM1) was published in 1987, exactly 25 years ago. The ASM1 can be considered as the reference model, since this model triggered the general acceptance of wastewater treatment modelling, first in the research community and later on also in practice. ASM1 has become a reference for many scientific and practical projects, and has been implemented (in some cases with modifications) in most of the commercial software available for modelling and simulation of plants for N removal. The models have grown more complex over the years, from ASM1, including N removal processes, to ASM2 (and its variations) including P removal processes, and ASM3 that corrects the deficiencies of ASM1 and is based on a metabolic approach to modelling. So far, ASM1 is the most widely applied. Applications of Activated Sludge Models has been prepared in celebration of 25 years of ASM1 and in tribute to the activated sludge modelling pioneer, the late Professor G.v.R. Marrais. It consists of a dozen of practical applications for ASM models to model development, plant optimization, extension, upgrade, retrofit and troubleshooting, carried out by the members of the Delft modelling group over the last two decades.
Author: Piet Lens Publisher: IWA Publishing ISBN: 1843391007 Category : Science Languages : en Pages : 545
Book Description
Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
Author: Gabriela Dotro Publisher: IWA Publishing ISBN: 9781789062519 Category : Science Languages : es Pages : 176
Book Description
Humedales para tratamiento es el séptimo volumen de la serie “Tratamiento biológico de aguas residuales” (en inglés “Biological Waste Water Treatment Series”), que provee una presentación de vanguardia sobre la ciencia y tecnología del tratamiento de aguas residuales. Los principales tipos de sistemas de humedales son tratados en este volumen, a saber: (i) Humedales de flujo subsuperficial horizontal, (ii) Humedales de flujo vertical; (iii) Humedales de flujo vertical tipo francés; (iv) Humedales intensificados; (v) Humedales de flujo libre; (vi) otras aplicaciones de los humedales para tratamiento. El libro presenta en forma clara y didáctica, los conceptos básicos, los principios de la tecnología, desempeños esperados, criterios de diseño, ejemplos de diseño, aspectos constructivos y guías para la operación. El libro ha sido escrito en su versión inglesa, y traducido al castellano, por un equipo internacional de expertos en el campo de los humedales para tratamiento.
Author: Mogens Henze Publisher: IWA Publishing (International Water Assoc) ISBN: Category : Science Languages : en Pages : 170
Book Description
For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.
Author: David M. Robbins Publisher: IWA Publishing ISBN: 178040476X Category : Science Languages : en Pages : 148
Book Description
This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Author: Kelly Andrea Aguirre Osorio
Author: Kelly Andrea Aguirre Osorio
Author: C. Van Dijk
Author: Elizabeth Tilley
Author: Norman N Potter
Author: Damir Brdjanovic
Author: Piet Lens
Author: Gabriela Dotro
Author: Mogens Henze
Author: David M. Robbins
Author: United States. Office of Foreign Agricultural Relations