Froth Flotation


Book Description

&Quot;Froth Flotation: A Century of Innovation comprehensively describes state-of-the-art research and practice in mineral froth flotation a century after its introduction. Recognized experts from around the world provide in-depth coverage on many facets of flotation, including the historical aspects; fundamentals; chemistry; flotation cells, modeling, and simulation; and flotation plant practice. This commemorative volume is an invaluable reference for industry professionals, researchers, and graduate students."--BOOK JACKET.




History of Flotation


Book Description

Floatation was the process that transformed the non-ferrous mining industry and the industries and economies of the world. It was an improbable process; nobody could have imagined 100 years ago that floating high specific gravity particles on water would be the basis of one of the world's great technologies. This book tells the story of the early days of flotation and is as much about the engineers, managers and financiers who supported the experiments and built the plants as it is about the technology that was developed. Flotation practitioners will enjoy reading about the history of flotation machines, the ingenuity applied and the competitive tension between the manufacturers.




The Scientific Basis of Flotation


Book Description

K.J.Ives Professor of Public Health Engineering University College London Industrial application of the use of bubbles to float fine particles in water began before the beginning of this century, in the field of mineral processing. Such bubble flotation was applied very little outside mineral processing, until about 1960 when the dissolved air process, which has already had some success in the pulp and paper industry, was applied to water and wastewater treatment. The subsequent two decades saw not only a growth development for water and wastewater treatment, but also a growing cognisance of the similarities that existed with mineral processing flotation. Therefore the time seemed ripe in 1982 for a joint meeting between experts in these two major fields of flotation to put together the Scientific Basis of Flotation in the form of a NATO Advanced Study Institute. Attended by about 60 specialists, mainly post doctoral, from 17 countries, this Study Institute in residence for two weeks in Christ's College, Cambridge (UK) heard presentations from several international experts, principally the 8 co-authors of this book. The integration of the various scientific disciplines of physics, physical chemistry, colloid science, hydrodynamics and process engineering showed where the common basiS, and occasional important differences, of flotation could be applied to mineral processing, water and wastewater treatment, and indeed some other process industries (for example: pharmaceuticals, and food manufacture).




Modern Sample Preparation for Chromatography


Book Description

Modern Sample Preparation for Chromatography, Second Edition explains the principles of sample preparation for chromatographic analysis. A variety of procedures are applied to make real-world samples amenable for chromatographic analysis and to improve results. This book's authors discuss each procedure's advantages, disadvantages and their applicability to different types of samples, along with their fit for different types of chromatographic analysis. The book contains numerous literature references and examples of sample preparation for different matrices and new sections on green approaches in sample preparation, progress in automation of sample preparation, non-conventional solvents for LLE (ionic liquids, deep eutectic mixtures, and others), and more. - Presents numerous techniques applied for sample preparation for chromatographic analysis - Provides an up-to-date source of information regarding the progress made in sample preparation for chromatography - Describes examples for specific types of matrices, providing a guide for choosing the appropriate sample preparation method for a given analysis




Floating Coast: An Environmental History of the Bering Strait


Book Description

Winner of the 2021 AHA John H. Dunning Prize Longlisted for the 2020 Cundill History Prize Named a Best Book of the Year by Nature, NPR, Library Journal, and Kirkus Reviews "A monument to a people and their land… an allegory of the world we have created." —Sven Beckert, author of Pulitzer Prize finalist Empire of Cotton: A Global History Floating Coast is the first-ever comprehensive history of Beringia, the Arctic land and waters stretching from Russia to Canada. The unforgiving territories along the Bering Strait had long been home to humans—the Inupiat and Yupik in Alaska, and the Yupik and Chukchi in Russia—before American and European colonization. Rapidly, these frigid lands and waters became the site of an ongoing experiment: How, under conditions of extreme scarcity, would modern ideologies of capitalism and communism control and manage the resources they craved? Drawing on her own experience living with and interviewing indigenous people in the region, Bathsheba Demuth presents a profound tale of the dynamic changes and unforeseen consequences that human ambition has brought (and will continue to bring) to a finite planet.




Bones that Float


Book Description

"On March 24, 2001, American writer Kari Grady Grossman entered a crowded orphanage outside Phnom Penh, Cambodia, and met her 8-month-old son. One of the first questions Kari asked was 'How did he get here?' The complex and at times heart-wrenching answer is told in this magnificent book that encompasses Kari's personal journey to adoption, Cambodia's gruesome history of war and genocide, and the stories of two Cambodians -- one who escaped the Khmer Rouge's bloody reign and one who did not. The interweaving stories grab your heartstrings and do not let go. From the moment Kari realizes that she will never be an 'earth momma' practicing prenatal yoga to years later as Kari wends her way on the back of a moto-taxi through Phnom Penh's smog-choked streets trying to make a difference in her son's birth nation, you can't read impassively. 'Bones That Float' takes you into the Khmer Rouge jungle where boy soldiers force starving families to labor all day at gunpoint, and it brings you to modern-day Phnom Penh streets where foreign pedophiles purchase the innocence of preteen Cambodian girls. But ultimately 'Bones That Float' -- a Cambodian phrase for the sacred that rises above the suffering -- is a tale of hope. Kari reminds us that our world is 'one big family' and that we cannot -- or dare not -- turn our backs on people who suffer in part because of our country's own foreign policy missteps. To read 'Bones That Float' is to open your heart to caring." ... "In a village called Chrauk Tick in the Cardamom Mountains of Cambodia, 485 children are the first people to learn to read and write. Armed with literacy, they are taking the first steps to change their lives. Our students have been featured on Voice of America demanding the rule of law to save their forest from illegal destruction, inspiring 100 primary school dropouts to choose the classroom instead of the fields. To continue this progress, the school will bring education sustainable cooking fuels, forest agriculture, a revival of music traditions, and communication technology to reach the outside world." ... "Friends of the Grady Grossman School is a non-profit 501(c)(3) charitable organization. www.GradyGrossmanSchool.org.




Innovations in Flotation Technology


Book Description

The present book is the outcome of an Advanced Study Institute meeting, which was held in Kallithea, Chalkidiki, in Northern Greece, from 12-25 May 1991 and attended by 69 delegates from 18 countries. The Institute brought together scientists, engineers and technologists currently involved in basic and applied research on the different aspects of flotation. The Institute covered subjects in four major areas of flotation: a) fundamentals; b) chemical technology aspects; c) mineral processing; and d) water and wastewater treatment. Apart from the papers reproduced in this volume, several short oral communications were also presented. Participants also had the opportunity to visit the Hellenic Chemical Products & Fertilizers Co. Ltd. mixed sulphides plant, in Chalkidiki. Conference participants, whose interest and research projects are in this broad field of science and engineering, provided a well-informed discussion of the problems encountered, as well as possible directions of future technological developments. It is hoped that this book is not only a good record of the presentations made (formal and informal), analyzing the state-of-the-art in flotation, but will also be helpful for students, scientists and technologists working in the fields of separation processes and in particular mineral processing and wastewater engineering. All the invited speakers and the participants made this summer school possible, worthwhile and enjoyable. The sponsorship by the NATO Scientific Affairs Division is gratefully ack nowledged. The Editors would like to thank the members of the Organizing Committee, Dr. B.A.




Why Icebergs Float


Book Description

From paintings and food to illness and icebergs, science is happening everywhere. Rather than follow the path of a syllabus or textbook, Andrew Morris takes examples from the science we see every day and uses them as entry points to explain a number of fundamental scientific concepts – from understanding colour to the nature of hormones – in ways that anyone can grasp. While each chapter offers a separate story, they are linked together by their fascinating relevance to our daily lives. The topics explored in each chapter are based on hundreds of discussions the author has led with adult science learners over many years – people who came from all walks of life and had no scientific training, but had developed a burning curiosity to understand the world around them. This book encourages us to reflect on our own relationship with science and serves as an important reminder of why we should continue learning as adults.




Water Quality & Treatment: A Handbook on Drinking Water


Book Description

The definitive water quality and treatment resource--fully revised and updated Comprehensive, current, and written by leading experts, Water Quality & Treatment: A Handbook on Drinking Water, Sixth Edition covers state-of-the-art technologies and methods for water treatment and quality control. Significant revisions and new material in this edition reflect the latest advances and critical topics in water supply and treatment. Presented by the American Water Works Association, this is the leading source of authoritative information on drinking water quality and treatment. NEW CHAPTERS ON: Chemical principles, source water composition, and watershed protection Natural treatment systems Water reuse for drinking water augmentation Ultraviolet light processes Formation and control of disinfection by-products DETAILED COVERAGE OF: Drinking water standards, regulations, goals, and health effects Hydraulic characteristics of water treatment reactors Gas-liquid processes and chemical oxidation Coagulation, flocculation, sedimentation, and flotation Granular media and membrane filtration Ion exchange and adsorption of inorganic contaminants Precipitation, coprecipitation, and precipitative softening Adsorption of organic compounds by activated carbon Chemical disinfection Internal corrosion and deposition control Microbiological quality control in distribution systems Water treatment plant residuals management




Handbook of Flotation Reagents: Chemistry, Theory and Practice


Book Description

Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used in flotation and is addressed to the researchers and plant metallurgists who employ these reagents. Consisting of three distinct parts: 1) provides detailed description of the chemistry used in mineral processing industry; 2) describes theoretical aspects of the action of flotation reagents3) provides information on the use of reagents in over 100 operating plants treating Cu, Cu/Zn, Cu/Pb, Zn, Pb/Zn/Ag, Cu/Ni and Ni ores.* Looks at the theoretical aspects of flotation reagents* Examines the practical aspects of using chemical reagents in operating plants* Provides guidelines for researchers and engineers involved in process design and development