Author: Menahem Libhaber
Publisher: IWA Publishing
ISBN: 1780400160
Category : Science
Languages : en
Pages : 582
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Book Description
In many countries, especially in developing countries, many people are lacking access to water and sanitation services and this inadequate service is the main cause of diseases in these countries. Application of appropriate wastewater treatment technologies, which are effective, low cost (in investment and especially in operation and maintenance), simple to operate, proven technologies, is a key component in any strategy aimed at increasing the coverage of wastewater treatment. Sustainable Treatment and Reuse of Municipal Wastewater presents the concepts of appropriate technology for wastewater treatment and the issues of strategy and policy for increasing wastewater treatment coverage. The book focuses on the resolution of wastewater treatment and disposal problems in developing countries, however the concepts presented are valid and applicable anywhere and plants based on combined unit processes of appropriate technology can also be used in developed countries and provide to them the benefits described. Sustainable Treatment and Reuse of Municipal Wastewater presents the basic engineering design procedures to obtain high quality effluents by treatment plants based on simple, low cost and easy to operate processes. The main message of the book is the idea of the ability to combine unit processes to create a treatment plant based on a series of appropriate technology processes which jointly can generate any required effluent quality. A plant based on a combination of appropriate technology unit processes is still easy to operate and is usually of lower costs than conventional processes in terms of investment and certainly in operation and maintenance. Chapters in the book are organized in a practical and accessible way to: Demonstrate selected unit process of appropriate technology and provide the scientific basis, the equations and the parameters required to design the unit processes, with some innovations developed by the authors. Highlight design procedures for selected combined processes which are in use in developing countries. Propose an innovative Orderly Design Method (ODM), which is easy to follow by practicing engineers, using the equations and formulas developed, once the fundamentals of each unit and combined process have been established. Provide a numeric example for the basic design of each selected appropriate technology process for a city with a population of 20,000 using the ODM and an Excel program which will be provided to the readers for download from an online web page. This book is a valuable and practical resource for all wastewater treatment engineers in field and the operational managers of waste treatment facilities. Authors: Menahem Libhaber, PhD, Consulting Engineer to the World Bank and other institutions, Alvaro Orozco Jaramillo, MSc, Consulting Engineer to the World Bank, the Inter-American Development Bank, Biwater and other institutions in various countries.
Author: Matthew E. Verbyla
Publisher: Momentum Press
ISBN: 1606507028
Category : Technology & Engineering
Languages : en
Pages : 164
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Book Description
Engineered ponds, lagoons, and wetlands have been used for centuries to treat and manage wastewater, and they are still widely used today. They require very few external energy and material inputs and provide ecosystem services for communities. This book presents a compilation of guidelines to design ponds, lagoons, and wetlands for the treatment and management of domestic or municipal wastewater, agricultural wastewater, and industrial waste. Sufficient detail and clarity is provided for practitioners to use this book as a reference, and for senior year or graduate college students to develop an understanding of the design concepts for these engineered natural treatment systems.
Author: B. B. Jana
Publisher: Springer
ISBN: 9811072485
Category : Technology & Engineering
Languages : en
Pages : 346
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Book Description
This volume provides state-of-the-art information on soil-water interactions in wastewater systems, characterization of wastewater, modes of treatment, safety of wastewater use, water conservation technologies involved in recycling of sewage in fish culture, biogeochemical cycling bacteria and nutrient dynamics, ecosystem resilient driven wastewater reclamation, bioremediation, aquaponics, ecological integrity, culture practices of fish farming, microbial food web phenomena, fish diseases, environmental economics of wastewater, environmental risk assessment, environmental law and regulations. Given its breadth of coverage, the book will be useful to researchers, teachers, students, administrators, planners, farmers and entrepreneurs interested in the profitable use of wastewater in the wastes-into-wealth framework of for the benefit of humanity, and in achieving the targets for sanitation and safe wastewater reuse by 2030, specified in the United Nations’ Sustainable Development Goals. Concerns are growing about the quality and quantity of fresh water, as severe crises are expected in the near future. Climate change has further worsened the strain on inland water resources, with its major impacts on ecosystems and human life. It is most urgent to protect and conserve inland water resources to maintain vital ecosystem functions. Despite the immense nutrient potentials of wastewater in terms of phosphorus, nitrogen and potassium and increasingly high rates of urbanization-based wastewater generation, wastewater has traditionally been overlooked as a resource. This produces a threefold loss – environmental degradation, monetary losses from fertilizers, and water. As a result, municipal wastewater offers a win-win strategy for water conservation and environmental protection, while also turning waste into wealth in the form of fish biomass and allied cash crops. Wastewater-fed aquaculture refers to a unique, integrated biosystem in which the wastes generated by the first system are used by the next subsystem. In wastewater-fed aquaculture biosystems, the organic wastes are recycled into fish biomass mediated through a complex microbial/autotrophic/heterotrophic food web mechanism.
Author: H. W. Pearson
Publisher: IWA Publishing (International Water Assoc)
ISBN:
Category : Science
Languages : en
Pages : 432
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Book Description
The importance of pond technology is now recognized globally and indeed is undergoing a renaissance at the present time. It was therefore no surprise that scientists and engineers from over 25 countries presented their most recent findings at the Marrakech conference. The choice of Morocco was especially appropriate as it, like most countries of the Magreb, has actively endorsed and implemented the use of waste stabilization ponds as a preferred wastewater treatment technology. The need to reuse treated wastewater is a key component of the water cycle in such water-short regions, and the crucial role that ponds can play in the safe reuse of effluents, particularly for agriculture, has also been recognized and supported by active research at institutions all round the world. This issue contains a selection of the papers presented both in the oral and poster sessions at the conference and should prove very informative for those who wish to keep abreast of developments in the field. Among the 52 papers selected from the oral and poster sessions for these proceedings are work on the performance of ponds systems worldwide, pond microbiology, nutrient removal, pond sludges and sediments, pond design and modeling, high-rate ponds, and effluent reuse.
Author: James R. Mihelcic
Publisher: John Wiley & Sons
ISBN: 1119604451
Category : Technology & Engineering
Languages : en
Pages : 738
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Book Description
ENVIRONMENTAL ENGINEERING
Author:
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 572
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Book Description
Author: Julia Rosa Caicedo Bejarano
Publisher: CRC Press
ISBN: 9780415375542
Category : Nature
Languages : en
Pages : 180
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Book Description
There is an urgent need to develop and improve low cost technologies for wastewater treatment. Simultaneously treating wastewater and producing duckweed in a pond system is, therefore, an attractive solution contributing to both environmental protection and food production. Duckweed has excellent qualities: a high protein content, a high growth rate and is an easy crop to handle. The small plant turns nitrogen from wastewater into a food source. This thesis reports on the effect of different operational variables, like anaerobic pre-treatment, the combination of algae and duckweed ponds and pond depth. Improved nitrogen removal was obtained through the combination of duckweed ponds with algae ponds. Duckweed pond systems could be designed with shallow depth without affecting nitrogen removal efficiency. This research is the result of the cooperative effort between the EIDENAR, Univalle, Cali, Colombia and the UNESCO-IHE Institute for Water Education in Delft, the Netherlands.
Author: U.S. Geological Survey Library
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 778
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Book Description
Author: Elizabeth Tilley
Publisher:
ISBN: 9783906484570
Category :
Languages : en
Pages : 176
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Book Description
Author: Miguel R. Pena
Publisher: IWA Publishing (International Water Assoc)
ISBN:
Category : Science
Languages : en
Pages : 164
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Book Description
Waste stabilization ponds and related natural wastewater treatment technologies are now widely seen as practical options to solve water quality problems. These systems can also contribute to tackling growing water shortages by enabling significant water reuse (and often nutrient recovery). These benefits are particularly relevant in regions such as Latin America which are facing continuous change in policy and regulation affecting water, sanitation and environmental management, yet are also characterised by a low public service coverage, particularly in low-income urban communities and rural settlements. Thus Latin American countries are at the forefront of the worldwide trend to the use of pond treatment systems. Countries such as Brazil, Cuba and Peru have considerable experience in pond technology, while countries such as Colombia, Ecuador, Mexico and Venezuela are implementing new systems. To understand the developments taking place the 1st IWA Regional Conference was held, bringing together scientists, engineers and professionals from several disciplines. From the papers presented 17, from across Latin America and beyond, have been selected for these proceedings that summarise the latest advances in ponding technology.
