Obtención de agua potable a partir de agua de mar por congelación - fusión

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis Obtención de agua potable a partir de agua de mar por congelación - fusión by : Maheri Contreras Fernández

Download or read book Obtención de agua potable a partir de agua de mar por congelación - fusión written by Maheri Contreras Fernández and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: [CASTELLÀ] El agua potable en ciertas partes del mundo resulta ser un recurso escaso o no disponible, o un recurso dependiente de las condiciones climatológicas de la zona. Es por ello que el ser humano se ha visto obligado a encontrar fuentes alternativas a los ríos, embalses y acuíferos para poder contrarrestar esta situación de escases. Una de las alternativas empleadas es la desalación del agua de mar. Desalar (desalinizar) el agua de mar o el agua salobre, consiste en eliminar las sales que se encuentran presentes en ella para hacerla apta para el consumo humano. Para desalinizar el agua de mar se pueden emplear varios métodos entre los que destacan aquellos que implican un cambio de fase y los que no. Dentro de los métodos que no emplean un cambio de fase se encuentra la ósmosis inversa, la cual utiliza una membrana semipermeable al agua para separar las sales de ésta, aplicando una presión mayor a la osmótica. La ósmosis inversa es una de las tecnologías más consolidadas en el campo de la desalación. Por su parte, dentro de los métodos que emplean un cambio de fase se encuentra la congelación – fusión, que consiste en la formación de cristales de hielo, libres de sales, que posteriormente son derretidos para la obtención de agua potable. La congelación - fusión es una tecnología que ha sido estudiada sólo a escala piloto en el campo de la desalación, sin embargo ha logrado grandes avances en la industria alimentaria. El presente trabajo define, caracteriza y compara dos tecnologías para desalar el agua de mar como son la congelación – fusión y la ósmosis inversa. Del estudio realizado se puede concluir, que la tecnología de congelación – fusión se encuentra aplicada sólo a escala piloto en el campo de la desalación, en donde las investigaciones afirman que tiene la ventaja principal de operar a bajas temperaturas disminuyendo así los problemas de incrustaciones en tuberías y equipos, a diferencia de la ósmosis inversa en donde se necesita el reemplazo constante de las membranas para que no disminuya el rendimiento del proceso, aumentando el coste de mantenimiento. El principal punto en contra que tiene la congelación – fusión, es vencer la dificultad del proceso de separación del hielo de la corriente de salmuera, la cual resulta ser una de las etapas más importantes del proceso para la obtención de agua potable. La recuperación energética, ya sea en la desalación por ósmosis inversa o por congelación-fusión ayuda a reducir los consumos específicos de energía.

La potabilización del agua de mar

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis La potabilización del agua de mar by : Alan Tabbush

Download or read book La potabilización del agua de mar written by Alan Tabbush and published by . This book was released on 1962 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

La potabilización del agua de mar

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Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (432 download)

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Book Synopsis La potabilización del agua de mar by : Alan Iabbush

Download or read book La potabilización del agua de mar written by Alan Iabbush and published by . This book was released on 1962 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Métodos de obtención de agua potable a partir del agua del mar

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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (87 download)

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Book Synopsis Métodos de obtención de agua potable a partir del agua del mar by : Alan Tabbush

Download or read book Métodos de obtención de agua potable a partir del agua del mar written by Alan Tabbush and published by . This book was released on 1962 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceso de desalación de agua de mar mediante un sistema de ósmosis inversa de muy alta conversión en tres etapas con recirculación de permeado y doble sistema de recuperación de energía

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ISBN 13 :
Total Pages : 321 pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis Proceso de desalación de agua de mar mediante un sistema de ósmosis inversa de muy alta conversión en tres etapas con recirculación de permeado y doble sistema de recuperación de energía by : Julen Cabero García

Download or read book Proceso de desalación de agua de mar mediante un sistema de ósmosis inversa de muy alta conversión en tres etapas con recirculación de permeado y doble sistema de recuperación de energía written by Julen Cabero García and published by . This book was released on 2015 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Glosario Del Banco Mundial

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Publisher : World Bank Publications
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Glosario Del Banco Mundial by : World Bank

Download or read book Glosario Del Banco Mundial written by World Bank and published by World Bank Publications. This book was released on 1996 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition of the World Bank has been revised and expanded by the Terminology Unit in the Languages Services Division of the World Bank in collaboration with the English, Spanish, and French Translation Sections. The Glossary is intended to assist the Bank's translators and interpreters, other Bank staff using French and Spanish in their work, and free-lance translator's and interpreters employed by the Bank. For this reason, the Glossary contains not only financial and economic terminology and terms relating to the Bank's procedures and practices, but also terms that frequently occur in Bank documents, and others for which the Bank has a preferred equivalent. Although many of these terms, relating to such fields as agriculture, education, energy, housing, law, technology, and transportation, could be found in other sources, they have been assembled here for ease of reference. A list of acronyms occurring frequently in Bank texts (the terms to which they refer being found in the Glossary) and a list of international, regional, and national organizations will be found at the end of the Glossary.

The North American Mosaic

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ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis The North American Mosaic by : Commission for Environmental Cooperation (Montréal, Québec). Secretariat

Download or read book The North American Mosaic written by Commission for Environmental Cooperation (Montréal, Québec). Secretariat and published by . This book was released on 2001 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The North American Mosaic has four overarching features. First, it is, to the extent feasible, based on comparable information on the status and trends of major indicators of the state of the environment in Canada,Mexico, and the United States. Second, the report confirms that these three countries together make up an incredibly complex, dynamic, and interconnected ecosystem in which humans play a dominant and decisive role. Third, the report raises important and sometimes disquieting questions concerning the sustainability of some current trends. Finally, the report is a reminder that our economic, social, and physical well-being are utterly dependent on the life-sustaining services provided by nature. This report emphasizes the importance of developing mutually compatible economic, social, and environmental goals and policies across the three-country region.

The Forbidden Religion

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Publisher : José M. Herrou Aragón
ISBN 13 : 1471725693
Total Pages : 107 pages
Book Rating : 4.4/5 (717 download)

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Book Synopsis The Forbidden Religion by : Jose M. Herrou Aragon

Download or read book The Forbidden Religion written by Jose M. Herrou Aragon and published by José M. Herrou Aragón. This book was released on 2012-07-03 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gnosis means knowledge. But we are not referring to just any knowledge. Gnosis is knowledge which produces a great transformation in those who receive it. Knowledge capable of nothing less than waking up man and helping him to escape from the prison in which he finds himself. That is why Gnosis has been so persecuted throughout the course of history, because it is knowledge considered dangerous for the religious and political authorities who govern mankind from the shadows. Every time this religion, absolutely different from the rest, appears before man, the other religions unite to try to destroy or hide it again. Primordial Gnosis is the original Gnosis, true Gnosis, eternal Gnosis, Gnostic knowledge in its pure form. Due to multiple persecutions, Primordial Gnosis has been fragmented, distorted and hidden.

Food Science

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Publisher : Springer
ISBN 13 : 9789401572637
Total Pages : 752 pages
Book Rating : 4.5/5 (726 download)

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Book Synopsis Food Science by : Norman N Potter

Download or read book Food Science written by Norman N Potter and published by Springer. This book was released on 2014-01-15 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Diccionario Jurídico Inglés-español Y Español-inglés Wiley

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Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 640 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Diccionario Jurídico Inglés-español Y Español-inglés Wiley by : Steven M. Kaplan

Download or read book Diccionario Jurídico Inglés-español Y Español-inglés Wiley written by Steven M. Kaplan and published by John Wiley & Sons. This book was released on 1993 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's "global village", nearly 450 million people speak English while another 350 million speak Spanish. The United States alone, with its more than 22 million Hispanic Americans, is now considered by many to be a bilingual society. As the practice of law and the resolution of legal issues, to a great extent, is all about precise communication, the impact of this on legal and business professionals is obvious - Spanish/English, English/Spanish translations are fast becoming an indispensable component of any thriving law practice or business, be it a small company or a multinational corporation. Translations are now routinely required for trials, contracts, real estate and financial transactions, and in many other situations. Clearly then, the need for a comprehensive bilingual reference such as this one has never been greater. Wiley's English/Spanish and Spanish/English Legal Dictionary offers comprehensive, up-to-date coverage of more than 40,000 essential words and phrases spanning all legal disciplines and subdisciplines including construction, real estate, insurance, business, trial, environmental law, intellectual property, family law, and more. It was written by a professional translator in collaboration with an advisory committee comprising attorneys from some of the most prominent firms in the international legal community. Featuring an extremely user-friendly format, the Dictionary was designed for quick reference. It directs you instantly to the precise equivalent you need without first "rerouting" you through a maze of other irrelevant terms and phrases. Gender neutral equivalents are provided, and in cases where the nongender neutral term is the norm, both are given.Wiley's English/Spanish and Spanish/English Legal Dictionary puts all important English and Spanish legal terms at the fingertips of attorneys, businesspeople, paralegals, and law students. It belongs on the shelves of law firms, libraries, businesses, and international agencies. It is also an essential communications tool for translators, interpreters, and civil servants.

Preventing Ageing Unequally

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Publisher : OECD Publishing
ISBN 13 : 9264279083
Total Pages : 258 pages
Book Rating : 4.2/5 (642 download)

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Book Synopsis Preventing Ageing Unequally by : OECD

Download or read book Preventing Ageing Unequally written by OECD and published by OECD Publishing. This book was released on 2017-10-18 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines how the two global mega-trends of population ageing and rising inequalities have been developing and interacting, both within and across generations.

The Green Web

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Publisher : Routledge
ISBN 13 : 1134189370
Total Pages : 425 pages
Book Rating : 4.1/5 (341 download)

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Book Synopsis The Green Web by : Martin Holdgate

Download or read book The Green Web written by Martin Holdgate and published by Routledge. This book was released on 2014-04-08 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is a history of the world's oldest global conservation body - the World Conservation Union, established in 1948 as a forum for governments, non-governmental organizations and individual conservationists. The author draws on unpublished archives to reveal the often turbulent story of the IUCN and its achievements in, and influence on, conservation and environmental policy worldwide - establishing national parks and protected areas and defending threatened species.

Banana: Genomics and Transgenic Approaches for Genetic Improvement

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Publisher : Springer
ISBN 13 : 9811015856
Total Pages : 345 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Banana: Genomics and Transgenic Approaches for Genetic Improvement by : Sukhada Mohandas

Download or read book Banana: Genomics and Transgenic Approaches for Genetic Improvement written by Sukhada Mohandas and published by Springer. This book was released on 2016-09-08 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bananas and plantains are among the most important food and cash crops in the world. They are cultivated in more than 135 countries, across the tropics and subtropics, with an annual global production of ca. 130 million metric tonnes. Though bananas are one of the most important components of food security in many developing countries, banana production is threatened by both abiotic and biotic stresses. These include a wide range of diseases and pests, such as bunchy top virus, burrowing nematodes, black Sigatoka or black leaf streak, Fusarium wilt, etc. In recent years, considerable progress has been made and several biotechnological and genomic tools have been employed to help understand and unravel the mysterious banana genome. Molecular and genomic studies have helped to decipher the Musa genome and its evolution. Genetic linkage map and whole genome sequencing of both Musa acuminata and Musa balbisiana (progenitors of cultivated banana) have completely changed the way of thinking and the approach on banana crop improvement. Whole-genome sequencing has helped to improve the selection of quantitative traits such as yield, as well as the selection of optimal parents for developing required hybrids in breeding programs. Gene isolation and the analysis of mutants have helped in the characterization of genes of agronomic value and the associated regulatory sequences. With the advent of molecular markers and new statistical tools, it is now possible to measure the diversity, identify genes and useful alleles linked to important agronomic traits. Further these alleles can be incorporated into cultivars through marker assisted selection or through transgenic approach. Transgenic approaches are potential tools for direct transfer of these genes into popular cultivars, which are generally not amenable for conventional breeding techniques, in specific with crops such as bananas which are sterile, triploid and heterozygous thereby making it difficult to reconstruct the recurrent genotypes in banana. Transgenic techniques thus have helped overcome the difficulty of working with sterile, triploid banana crop. In the last five years, enormous amount of new information and techniques have been generated for banana. A comprehensive book entitled “Banana: Genomics and Transgenic Approaches for Genetic improvement” on banana genomics, latest transgenic technologies and tools available for improved crop development in banana will address all these requirements.

Soil and Sediment Remediation

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Publisher : IWA Publishing
ISBN 13 : 1843391007
Total Pages : 545 pages
Book Rating : 4.8/5 (433 download)

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Book Synopsis Soil and Sediment Remediation by : Piet Lens

Download or read book Soil and Sediment Remediation written by Piet Lens and published by IWA Publishing. This book was released on 2005-09-30 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

In the Shadow of Melting Glaciers

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Publisher : Oxford University Press
ISBN 13 : 019974257X
Total Pages : 286 pages
Book Rating : 4.1/5 (997 download)

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Book Synopsis In the Shadow of Melting Glaciers by : Mark Carey

Download or read book In the Shadow of Melting Glaciers written by Mark Carey and published by Oxford University Press. This book was released on 2010-04-07 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is producing profound changes globally. Yet we still know little about how it affects real people in real places on a daily basis because most of our knowledge comes from scientific studies that try to estimate impacts and project future climate scenarios. This book is different, illustrating in vivid detail how people in the Andes have grappled with the effects of climate change and ensuing natural disasters for more than half a century. In Peru's Cordillera Blanca mountain range, global climate change has generated the world's most deadly glacial lake outburst floods and glacier avalanches, killing 25,000 people since 1941. As survivors grieved, they formed community organizations to learn about precarious glacial lakes while they sent priests to the mountains, hoping that God could calm the increasingly hostile landscape. Meanwhile, Peruvian engineers working with miniscule budgets invented innovative strategies to drain dozens of the most unstable lakes that continue forming in the twenty first century. But adaptation to global climate change was never simply about engineering the Andes to eliminate environmental hazards. Local urban and rural populations, engineers, hydroelectric developers, irrigators, mountaineers, and policymakers all perceived and responded to glacier melting differently-based on their own view of an ideal Andean world. Disaster prevention projects involved debates about economic development, state authority, race relations, class divisions, cultural values, the evolution of science and technology, and shifting views of nature. Over time, the influx of new groups to manage the Andes helped transform glaciated mountains into commodities to consume. Locals lost power in the process and today comprise just one among many stakeholders in the high Andes-and perhaps the least powerful. Climate change transformed a region, triggering catastrophes while simultaneously jumpstarting modernization processes. This book's historical perspective illuminates these trends that would be ignored in any scientific projections about future climate scenarios.

Process-Induced Food Toxicants

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Publisher : John Wiley & Sons
ISBN 13 : 0470430095
Total Pages : 744 pages
Book Rating : 4.4/5 (74 download)

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Book Synopsis Process-Induced Food Toxicants by : Richard H. Stadler

Download or read book Process-Induced Food Toxicants written by Richard H. Stadler and published by John Wiley & Sons. This book was released on 2008-12-09 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Process-Induced Food Toxicants combines the analytical, health, and risk management issues relating to all of the currently known processing-induced toxins that may be present in common foods. It considers the different processing methods used in the manufacture of foods, including thermal treatment, drying, fermentation, preservation, fat processing, and high hydrostatic pressure processing, and the potential contaminants for each method. The book discusses the analysis, formation, mitigation, health risks, and risk management of each hazardous compound. Also discussed are new technologies and the impact of processing on nutrients and allergens.

Defending the Land of the Jaguar

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Publisher : University of Texas Press
ISBN 13 : 0292787561
Total Pages : 343 pages
Book Rating : 4.2/5 (927 download)

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Book Synopsis Defending the Land of the Jaguar by : Lane Simonian

Download or read book Defending the Land of the Jaguar written by Lane Simonian and published by University of Texas Press. This book was released on 2010-07-05 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mexican conservationists have sometimes observed that it is difficult to find a country less interested in the conservation of its natural resources than is Mexico. Yet, despite a long history dedicated to the pursuit of development regardless of its environmental consequences, Mexico has an equally long, though much less developed and appreciated, tradition of environmental conservation. Lane Simonian here offers the first panoramic history of conservation in Mexico from pre-contact times to the current Mexican environmental movement. He explores the origins of conservation and environmental concerns in Mexico, the philosophies and endeavors of Mexican conservationists, and the enactment of important conservation laws and programs. This heretofore untold story, drawn from interviews with leading Mexican conservationists as well as archival research, will be important reading throughout the international community of activists, researchers, and concerned citizens interested in the intertwined issues of conservation and development.