Life cycle cost estimation and environmental valuation of coal mine tailings management

Abstract Sustainable mining management is increasingly seen as an important issue in achieving a social license to operate for mining companies. This study describes the life cycle cost (LCC) analysis and environmental valuation for several coal mine tailings management scenarios. The economic feasibility of six different options was assessed using the Net Present Value (NPV) and Benefit-Cost Analysis (BCA) methods. These options were belt press (OPT 1), tailings paste (OPT 2), thickened tailings (OPT 3), and OPT 1 with technology improvement and renewable energy sources (OPT 1A-C). The results revealed that OPT 1A (belt press technology with stack cell flotation) was the first preference in terms of LCC while OPT 1C (belt press technology with stack cell flotation and 10% wind energy) generated the highest benefits value (BCA) compared to the other options. The LCC and BCA components and the volume of GHG emissions were used to determine the best option. Normalization of these three elements resulted in the selection of Option 1C as being the most cost-effective option.

[1]  Adisa Azapagic,et al.  Life cycle Assessment and its Application to Process Selection, Design and Optimisation , 1999 .

[2]  J. L. Daniels,et al.  Environmental issues from coal mining and their solutions , 2010 .

[3]  G. Huppes,et al.  A Framework for Quantified Eco‐efficiency Analysis , 2005 .

[4]  W. David Constant,et al.  Application of Life Cycle Assessment , 2002 .

[5]  Göran Finnveden,et al.  Scenarios in selected tools for environmental systems analysis , 2008 .

[6]  Göran Finnveden,et al.  Weighting and valuation in selected environmental systems analysis tools - suggestions for further developments , 2011 .

[7]  Göran Finnveden,et al.  Environmental systems analysis tools – an overview , 2005 .

[8]  Margaret Jollands,et al.  Life cycle assessment and life cycle cost implications of wall assemblages designs , 2014 .

[9]  M. Harrison.  Valuing the Future: The Social Discount Rate in Cost-Benefit Analysis , 2010 .

[10]  Sean Pascoe,et al.  Is economic valuation of ecosystem services useful to decision-makers? Lessons learned from Australian coastal and marine management. , 2016, Journal of environmental management.

[11]  C. Dlamini,et al.  Types of values and valuation methods for environmental resources: Highlights of key aspects, concepts and approaches in the economic valuation of forest goods and services , 2012 .

[12]  Roderick G. Eggert,et al.  Mining and Economic Sustainability: National Economies and Local Communities , 2002 .

[13]  M Erkayaoğlu,et al.  A comparative life cycle assessment of material handling systems for sustainable mining. , 2016, Journal of environmental management.

[14]  Yung-Tse Hung,et al.  Biosolids Treatment Processes , 2007 .

[15]  Ben White,et al.  Public preferences for timeliness and quality of mine site rehabilitation. The case of bauxite mining in Western Australia , 2012 .

[16]  Richard Heinberg,et al.  Full cost accounting for the life cycle of coal , 2011, Annals of the New York Academy of Sciences.

[17]  Alicja Krzemień,et al.  Investment in new tungsten mining projects , 2015 .

[18]  J. Kool,et al.  MINING AND CRITICAL ECOSYSTEMS: Mapping the Risks , 2003 .

[19]  Michele Rosano,et al.  A framework for a sustainable approach to mine tailings management: disposal strategies , 2015 .

[20]  Maria Alfredsson,et al.  Mine tailings dams: Characteristics, failure, environmental impacts, and remediation , 2014 .

[21]  David Brereton,et al.  Managing the cumulative impacts of coal mining on regional communities and environments in Australia , 2010 .

[22]  Maheshi Danthurebandara,et al.  Valorization of thermal treatment residues in Enhanced Landfill Mining: environmental and economic evaluation , 2015 .

[23]  Larry Thomas.  Coal resources and reserves , 2013 .

[24]  Ecofys.  Carbon Pricing Watch 2016 , 2016 .

[25]  Marisa J. Mazzotta,et al.  Benefit transfer with limited data: An application to recreational fishing losses from surface mining , 2015 .

[26]  Shaogang Lei,et al.  The impact of disposal and treatment of coal mining wastes on environment and farmland , 2009 .

[27]  Michele Rosano,et al.  Synergising water and energy requirements to improve sustainability performance in mine tailings management , 2016 .

[28]  Benjamin C. McLellan,et al.  Incorporating sustainable development in the design of mineral processing operations – Review and analysis of current approaches , 2009 .

[29]  Dimitris Kaliampakos,et al.  Monetizing the social benefits of landfill mining: Evidence from a Contingent Valuation survey in a rural area in Greece. , 2016, Waste management.

[30]  F. G. Bell,et al.  Environmental impacts associated with an abandoned mine in the Witbank Coalfield, South Africa , 2001 .

[31]  Dimitris Damigos,et al.  An overview of environmental valuation methods for the mining industry , 2006 .

[32]  Scott J. Callan,et al.  Environmental Economics and Management: Theory, Policy, and Applications , 1995 .

[33]  S. C. Myers,et al.  Principles of Corporate Finance - 4/E , 2002 .

[34]  S. Bhattacharya,et al.  PRESENT CHALLENGES IN THE PERFORMANCE OF COAL FINES DEWATERING CIRCUIT , 2014 .

[35]  N. Haque,et al.  Life cycle assessment of iron ore mining and processing , 2015 .

[36]  Gerald H. Luttrell,et al.  Cleaning of fine and ultrafine coal , 2013 .

[37]  Suzi Dilara Mangan,et al.  Assessment of residential building performances for the different climate zones of Turkey in terms of life cycle energy and cost efficiency , 2016 .

[38]  R. D. Groot,et al.  A typology for the classification, description and valuation of ecosystem functions, goods and services , 2002 .