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Element Recovery and Sustainability (RSC Green Chemistry Series)

Book review by James Clark
RSC Green Chemistry Series Editor in Chief
University of York
ECG Bulletin January 2014
Increasing consumption and the development of new low carbon and electronic technologies are broadening concerns over future elemental sustainability for a wide range of elements from phosphorous to indium. This issue is rapidly rising up the political, economic and research agendas and this book will tap into this inter-est to highlight and discuss the problem and current ideas, research and innovation to increase elemental recovery. It covers a multi-disciplinary blend of knowledge from the chemistry, engineering and biotechnology sectors ranging from ionic liquid recovery methods to hyperaccumulation in plants. The editors have a strong background in the utilisation of waste, green chemistry technologies and utilisation of bio-derived resources, and this is the first book to look at the over-all issue, providing a new perspective through drawing together many different techniques for researchers and policy makers.
Contents
  • Elemental sustainability and the importance of scarce element recovery
  • Integration of traditional methods for elemental recovery in a zero-waste recycling flow sheet
  • Ionometallurgy (ionic liquids in metallurgy)
  • Biosorption of elements
  • Hyperaccumulation by plants
  • Anthropospheric losses of platinum-group elements
  • f-Block elements recovery
  • WEEE waste recovery
  • Mining municipal waste: prospective for elemental recovery
Picture
From the Preface
The 21st century has seen a growing recognition of the importance of resource management including the more careful use of resources, an awareness of their lifecycles and a move towards a more closed-loop approach to manufacturing. In the context of sustainable chemistry, while the 1990s saw the emergence of the green chemistry movement, with a strong focus on clean production and waste minimization in manufacturing, the new century has seen a move towards a much more holistic view. While clean and efficient manufacturing remains key and arguably the cornerstone of chemical sustainability, we now understand that this must be accompanied by a greater use of renewable resources as well as shift to environmentally compatible products. The emphasis to date in renewable resources has been on carbon – we have all become familiar with the challenges of declining traditional fossil feedstocks and the need for a smaller carbon footprint, yet only now are concerns over other elements and elemental cycles being taken seriously. Society uses a very large number of the elements in its everyday activities. Carbon, nitrogen, oxygen, hydrogen and phosphorus, in particular, are fundamental and commonplace in life. Others including iron, chlorine, bromine, selenium and potassium are also vital to natural processes if perhaps less widely appreciated. In addition to these we have chosen to build a society around many other elements – nickel, tungsten, chromium, copper and vanadium alongside boron, gold, silver, palladium, platinum and many others are found in a multitude of articles from buildings to electronics and from sophisticated equipment to complex drug molecules. Ironically, the move to a low-carbon economy – a laudable goal in principle, if not in practice – has made the problem worse by consuming large amounts of main group and rare earth elements, that are not normally used to any great extent, in batteries, wind turbines, hybrid cars and other increasingly popular alternative, low-carbon technologies. We know where these elements occur and we know a lot about their chemistries (entire book series have been written about some of them), yet we know very little about their elemental cycles which, given our almost obsessive interest in carbon cycles, seems surprising. How does our use of fluorine for example, in an increasingly high proportion of pharmaceuticals, agrochemicals and electronic chemicals affect the natural lifecycle of fluorine (which includes large quantities of static minerals and frequent emissions of hydrogen fluoride from volcanoes)? We are very aware of the dangers of halocarbons and compounds such as sulfur hexafluoride in the atmosphere but what about less volatile organofluorine molecules in the terra-sphere? The importance of achieving a better understanding of the elements in terms of their use, recovery and interaction with the environment is discussed in Chapter 1 and at various other stages in the book, in particular in Chapter 7 where the special case of platinum group metals – with applications from the decorous (jewellery) to the essential (catalysts for emission control and for the manufacture of pharmaceuticals) are discussed in terms of anthropospheric losses. The book also focuses on both tradition and novel methods of metal recovery (Chapters 2 and 3).
If we can learn to recover elements from waste, if we can process more efficiently and if we can design articles (or processes) better so that they use less critical elements and enable recovery of those elements when the article (or process) reaches its end of life, then we are making massive steps towards elemental sustainability even in resource-deficient regions such as western Europe.

The use of benign and more efficient processes and the recovery of otherwise wasted or lost valuable elements are described in Chapters 4, 5, 6, 8 and 9. These cover bio- and non bioprocesses and also look at metals and non-metals. They include a chapter on the especially important challenge and opportunity for WEEE mining, the enormous amount of waste electronics we produce each year, which is growing at a staggering rate – surely we cannot continue to treat our slightly out-of-date phone, television and other devices which such lack of respect for the elements that went into them. This balance in favour of practical technologies is deliberate: politicians can and do spend long hours debating these issues but as scientists we have a responsibility to develop practical solutions and these must include effective ways of recovering valuable elements both to reduce environmental harm and to recover and re-use the precious and limited resources our planet gives us. To put the words of Mahatma Gandhi into a modern consumer society context: “. . .we can satisfy all of our needs if we are resource intelligent”.

James Clark – University of York, UK, RSC Green Chemistry Series Editor in Chief

Element Recovery and Sustainability
Royal Society of Chemistry, Cambridge, 2013
Editor: Andrew Hunt ISSN: 1757-7039
Price: £149.99
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  • Home
  • About
    • Committee
    • Annual reports
  • Environmental Briefs
  • Distinguished Guest Lectures
    • 2022 Disposable Attitude: Electronics in the Environment >
      • Steve Cottle
      • Ian Williams
      • Fiona Dear
    • 2019 Radioactive Waste Disposal >
      • Juliet Long
    • 2018 Biopollution: Antimicrobial resistance in the environment >
      • Andrew Singer
      • Celia Manaia
    • 2017 Inside the Engine >
      • Frank Kelly
      • Claire Holman
      • Jacqui Hamilton
      • Simon Birkett
    • 2016 Geoengineering >
      • Alan Robock
      • Joanna Haigh
      • David Santillo
      • Mike Stephenson
    • 2015 Nanomaterials >
      • Eugenia Valsami-Jones
      • Debora F Rodrigues
      • David Spurgeon
    • 2014 Plastic debris in the ocean >
      • Richard Thompson
      • Norman Billingham
    • 2013 Rare earths and other scarce metals >
      • Thomas Graedel
      • David Merriman
      • Michael Pitts
      • Andrea Sella
      • Adrian Chapman
    • 2012 Energy, waste and resources >
      • RAFFAELLA VILLA
      • PAUL WILLIAMS
      • Kris Wadrop
    • 2011 The Nitrogen Cycle – in a fix?
    • 2010 Technology and the use of coal
    • 2009 The future of water >
      • J.A. (Tony) Allen
      • John W. Sawkins
    • 2008 The Science of Carbon Trading >
      • Jon Lovett
      • Matthew Owen
      • Terry barker
      • Nigel Mortimer
    • 2007 Environmental chemistry in the Polar Regions >
      • Eric Wolff
      • Tim JICKELLS
      • Anna Jones
    • 2006 The impact of climate change on air quality >
      • Michael Pilling
      • GUANG ZENG
    • 2005 DGL Metals in the environment: estimation, health impacts and toxicology
    • 2004 Environmental Chemistry from Space
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