Propuesta de gestión y disposición de residuos generados en una planta de extracción de oro en Ecuador

Download Propuesta de gestión y disposición de residuos generados en una planta de extracción de oro en Ecuador PDF Online Free

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

DOWNLOAD NOW!


Book Synopsis Propuesta de gestión y disposición de residuos generados en una planta de extracción de oro en Ecuador by : Nadya Karina Rodríguez Alba

Download or read book Propuesta de gestión y disposición de residuos generados en una planta de extracción de oro en Ecuador written by Nadya Karina Rodríguez Alba and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: En la actualidad el oro por sus características físicas y químicas tiene demanda en joyería, como reserva monetaria, industria eléctrica y electrónica, etc., Esto ha provocada un aumento de producción por parte de las empresas mineras, en sus diferentes procesos se generan desechos que representan un riesgo para el medio ambiente y la salud humana, por sus características de peligrosidad. Este trabajo pretende elaborar una propuesta de gestión y disposición de los residuos generados en plantas de extracción de oro de pequeña escala en Ecuador. Para ello, se realiza una revisión general sobre la producción mundial de metales y sobre la situación actual referente a la demanda y producción de oro, para luego describir los procesos industriales para la obtención de oro. Se repasa sobre la situación actual de la actividad minera en Ecuador, haciendo énfasis sobre la producción actual de oro y la normativa nacional que regula la actividad minera. Posteriormente, se describen los desechos que se generan en el procesamiento de minerales para la obtención de oro, y sobre los impactos negativos que causan al medio ambiente. Se desarrolla un caso de estudio, en el cual se describe todas las fases del procesamiento de mineral que se realiza actualmente en las plantas de pequeña y mediana minería de Ecuador e identifican los desechos que generan estas plantas y la gestión que reciben. Con esta información se realiza una propuesta de gestión integral con el objeto de disminuir la cantidad de desechos y poder reciclar o reutilizar dentro de las fases del procesamiento. En la planta de beneficio Bellavista Alto, se realiza la amalgamación con mercurio, en la planta se procesa 12 t/día de roca, obteniendo un concentrado de 1.2 t/día, del cual se recupera 42 g/día de oro y se pierde 18 g/día de oro en los relaves. Los desechos identificados son; relaves con 10.8 t/día; mercurio pulverizado y evapora con 4.54 kg/día. En la planta de beneficio Bellavista Alto, se propone la eliminación del proceso de amalgamación con mercurio y se indica como alternativa el uso de una mesa de sacudidas para poder obtener el concentrado. Seguido de un proceso de biolixiviación, tanto en el concentrado como en los relaves. Sin embargo, este proceso sería como un pretratamiento, pues se debería aplicar algún método convencional para poder recuperar el oro una vez liberado de la pirita.

The Mexican Mining Journal

Download The Mexican Mining Journal PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 668 pages
Book Rating : 4.:/5 (334 download)

DOWNLOAD NOW!


Book Synopsis The Mexican Mining Journal by :

Download or read book The Mexican Mining Journal written by and published by . This book was released on 1909 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Coal Tar Creosote

Download Coal Tar Creosote PDF Online Free

Author :
Publisher : WHO
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!


Book Synopsis Coal Tar Creosote by : C. Melber

Download or read book Coal Tar Creosote written by C. Melber and published by WHO. This book was released on 2004 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: On cover: IPCS International Programme on Chemical Safety. Published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organization and the World Health Organization, and produced within the framework of the Inter-organization Programme for the Sound Management of Chemicals (IOMC)

Aves de piedra, barro y oro en la Costa Rica precolombina

Download Aves de piedra, barro y oro en la Costa Rica precolombina PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Aves de piedra, barro y oro en la Costa Rica precolombina by : Patricia Fernández Esquivel

Download or read book Aves de piedra, barro y oro en la Costa Rica precolombina written by Patricia Fernández Esquivel and published by . This book was released on 2009 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: A scholarly and physically stunning presentation of the use of bird imagery in pre-Columbian Costa Rican art, with an equal balance of photos and text. Includes indigenous culture, contemporary links, and comparative photos of artifacts and actual birds

Copiar el edén

Download Copiar el edén PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 662 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Copiar el edén by : María Berríos

Download or read book Copiar el edén written by María Berríos and published by . This book was released on 2006 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyzes the evolution of contemporary art in Chile from 1973 to 2007. This edition reproduces more than 500 color images of works by 74 contemporary artists (selected by editor Mosquera) including names such as: Juan Downey, Carlos Arias, (Santiago, Chile, 1964); Juan Castillo, (Antofagasta, 1952); Eugenio Dittborn, (Santiago, Chile, 1943); Paz Errzuriz, (Santiago, Chile, 1944); Volupsa Jarpa, (Rancagua, 1971); Carlos Leppe, (Santiago, Chile, 1952); and Carolina Ruff, (Santiago, Chile, 1973), as well as younger generation artists. The artists are presented in alphabetical order with brief introductory texts. Each reproduced work is rigorously documented with a caption that, in addition to providing the technical data offers the reader a description of the work for better comprehension. Six essays by noted critics and art historians: Guillermo Machuca, Mar̕a Berr̕os, Justo Pastor Mellado, Catalina Mena, Nelly Richard y Adriana V̀lads (description provided by vendor).

Rodale's Basic Organic Gardening

Download Rodale's Basic Organic Gardening PDF Online Free

Author :
Publisher : Rodale Books
ISBN 13 : 1609619854
Total Pages : 338 pages
Book Rating : 4.6/5 (96 download)

DOWNLOAD NOW!


Book Synopsis Rodale's Basic Organic Gardening by : Deborah L. Martin

Download or read book Rodale's Basic Organic Gardening written by Deborah L. Martin and published by Rodale Books. This book was released on 2014-03-11 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the inspiration hits to start an organic garden, many novices could benefit from a guidebook that speaks directly to their enthusiasm, their goals, and, of course, their need for solid information that speaks a newbie's language—from the most trusted source for organic gardening methods. In Rodale's Basic Organic Gardening by Deborah L. Martin, general garden-building skills (from "Do I need to dig?" to "Where do I dig?") and specific techniques (from "How do I plant a seed?" to "How much should I water?") are presented in growing-season order—from garden planning and planting to growing and harvesting. Many other need-to-know topics like soil, compost, seeds, pest control, and weeds are explained in simple language to ensure success, even on a small scale, on the first try. More than 100 common garden terms are defined, and Smart Starts sidebars offer doable projects to build confidence and enthusiasm for expanding a garden when a gardener is ready. A flower, vegetable, and herb finder highlights easycare plants with good track records. Plus, there are no-dig garden methods, simple garden layouts, and many more tips and hints. With a "no question is unwelcome" approach, a troubleshooting section lessens frustrations and encourages experimentation. Rodale's Basic Organic Gardening is everything a beginning gardener (or one who's new to gardening organically) needs to get growing and keep a garden going strong all season.

Mexican Mining Journal

Download Mexican Mining Journal PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!


Book Synopsis Mexican Mining Journal by :

Download or read book Mexican Mining Journal written by and published by . This book was released on 1909 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Tarzan and the Ant-Men (Serapis Classics)

Download Tarzan and the Ant-Men (Serapis Classics) PDF Online Free

Author :
Publisher : Serapis Classics
ISBN 13 : 3962559744
Total Pages : 265 pages
Book Rating : 4.9/5 (625 download)

DOWNLOAD NOW!


Book Synopsis Tarzan and the Ant-Men (Serapis Classics) by : Edgar Rice Burroughs

Download or read book Tarzan and the Ant-Men (Serapis Classics) written by Edgar Rice Burroughs and published by Serapis Classics. This book was released on 2017-10-19 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tarzan, the king of the jungle, enters an isolated country called Minuni, inhabited by a people four times smaller than himself, the Minunians, who live in magnificent city-states which frequently wage war against each other. Tarzan befriends the king, Adendrohahkis, and the prince, Komodoflorensal, of one such city-state, called Trohanadalmakus, and joins them in war against the onslaught of the army of Veltopismakus, their warlike neighbours.

Essentials for Child Development Associates Working with Young Children

Download Essentials for Child Development Associates Working with Young Children PDF Online Free

Author :
Publisher : Ingram
ISBN 13 : 9780975914007
Total Pages : 466 pages
Book Rating : 4.9/5 (14 download)

DOWNLOAD NOW!


Book Synopsis Essentials for Child Development Associates Working with Young Children by : Carol Brunson Day

Download or read book Essentials for Child Development Associates Working with Young Children written by Carol Brunson Day and published by Ingram. This book was released on 2004-11-01 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Memorias Antiguas Historiales Y Políticas Del Perú

Download Memorias Antiguas Historiales Y Políticas Del Perú PDF Online Free

Author :
Publisher : Yale Peabody Museum
ISBN 13 :
Total Pages : 182 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Memorias Antiguas Historiales Y Políticas Del Perú by : Sabine Hyland

Download or read book Memorias Antiguas Historiales Y Políticas Del Perú written by Sabine Hyland and published by Yale Peabody Museum. This book was released on 2007 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a transcription of Spanish priest and explorer Fernando de Montesinos' 1644 manuscript for Book II of Memorias historiales, a rare reference on early Peru and Andean culture. Distributed for the Yale Peabody Museum

Comparative Perspectives on the Archaeology of Coastal South America

Download Comparative Perspectives on the Archaeology of Coastal South America PDF Online Free

Author :
Publisher : Center for Comparative Arch
ISBN 13 : 1877812889
Total Pages : 270 pages
Book Rating : 4.8/5 (778 download)

DOWNLOAD NOW!


Book Synopsis Comparative Perspectives on the Archaeology of Coastal South America by : Robyn E. Cutright

Download or read book Comparative Perspectives on the Archaeology of Coastal South America written by Robyn E. Cutright and published by Center for Comparative Arch. This book was released on 2010 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirteen papers by archaeologists from North and South America on the archaeology of coastal Ecuador, Peru, and Chile. The authors have all emphasized comparative approaches to prehispanic societies along the Pacific coast. They give preference neither to high theory nor to case-specific empirical details, but rather attempt to answer theoretically important research questions with appropriate methodologies and empirical datasets--ones that are amenable to a broad comparative view.

New Spanish and English Dictionary ...

Download New Spanish and English Dictionary ... PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 824 pages
Book Rating : 4.B/5 (1 download)

DOWNLOAD NOW!


Book Synopsis New Spanish and English Dictionary ... by : F. C. Meadows

Download or read book New Spanish and English Dictionary ... written by F. C. Meadows and published by . This book was released on 1852 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Code of Conduct on Pesticide Management

Download International Code of Conduct on Pesticide Management PDF Online Free

Author :
Publisher : Food & Agriculture Org.
ISBN 13 : 9251091870
Total Pages : 37 pages
Book Rating : 4.2/5 (51 download)

DOWNLOAD NOW!


Book Synopsis International Code of Conduct on Pesticide Management by : Food and Agriculture Organization of the United Nations

Download or read book International Code of Conduct on Pesticide Management written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-09-03 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding that some pesticides are more hazardous than others is well established. Recognition of this is reflected by the World Health Organization (WHO) Recommended Classification of Pesticides by Hazard, which was first published in 1975. The document classifies pesticides in one of five hazard classes according to their acute toxicity. In 2002, the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) was introduced, which in addition to acute toxicity also provides classification of chemicals according to their chronic health hazards and environmental hazards.

Peaceful Uses of Atomic Energy

Download Peaceful Uses of Atomic Energy PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!


Book Synopsis Peaceful Uses of Atomic Energy by : United States. Department of State

Download or read book Peaceful Uses of Atomic Energy written by United States. Department of State and published by . This book was released on 1955 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Soil and Sediment Remediation

Download Soil and Sediment Remediation PDF Online Free

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

DOWNLOAD NOW!


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.

The Information

Download The Information PDF Online Free

Author :
Publisher : Vintage
ISBN 13 : 0307379574
Total Pages : 400 pages
Book Rating : 4.3/5 (73 download)

DOWNLOAD NOW!


Book Synopsis The Information by : James Gleick

Download or read book The Information written by James Gleick and published by Vintage. This book was released on 2011-03-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the bestselling author of the acclaimed Chaos and Genius comes a thoughtful and provocative exploration of the big ideas of the modern era: Information, communication, and information theory. Acclaimed science writer James Gleick presents an eye-opening vision of how our relationship to information has transformed the very nature of human consciousness. A fascinating intellectual journey through the history of communication and information, from the language of Africa’s talking drums to the invention of written alphabets; from the electronic transmission of code to the origins of information theory, into the new information age and the current deluge of news, tweets, images, and blogs. Along the way, Gleick profiles key innovators, including Charles Babbage, Ada Lovelace, Samuel Morse, and Claude Shannon, and reveals how our understanding of information is transforming not only how we look at the world, but how we live. A New York Times Notable Book A Los Angeles Times and Cleveland Plain Dealer Best Book of the Year Winner of the PEN/E. O. Wilson Literary Science Writing Award

Engineer's dictionary Spanish-English and English-Spanish

Download Engineer's dictionary Spanish-English and English-Spanish PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.:/5 (846 download)

DOWNLOAD NOW!


Book Synopsis Engineer's dictionary Spanish-English and English-Spanish by : Louis A. Robb

Download or read book Engineer's dictionary Spanish-English and English-Spanish written by Louis A. Robb and published by . This book was released on 1987 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: