Conference Agenda

Cultural Welcome

Dave Brennan

Ngāi Tūāhuriri, New Zealand

Welcome & Introduction

James Pope

Verum Group Ltd, New Zealand

IMWA Presidents Address

Christian Wolkersdorfer

Tshwane University of Technology (TUT), South Africa

New Zealand Minerals Sector Perspectives

Josie Vidal

Straterra, New Zealand

Proactively Investing in the Technical Fundamentals That Underpin Corporate Water Stewardship Commitments

Blair Robert Douglas

BHP, Australia

Legacy Mine Cleanup - a Ministry for Environment Perspective

Bruce Croucher

Ministry for the Environment, New Zealand

🎓 Using Tracer Injection and Synoptic Sampling, and Salt Dilution Flow to Gauge Metal Fluxes in a Temperate Watershed in the UK

Aaron Martin Lawrence Todd¹, Iain Robertson¹, Rory P.D. Walsh¹, Patrick Byrne², Paul Edwards³, Tom Williams³

1: Department of Geography, Swansea University, Swansea SA2 8PP UK; 2: School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool L3 3AF UK; 3: Natural Resources Wales, 29 Newport Road, Cardiff CF24 0TP, UK

A River System Approach to Mine Water Mitigation and Management

Peter Clive Stanley¹, Peter Thorn², Tom Williams¹, Louise Siddorn¹, Dave Cooke²

1: Natural Resources Wales, United Kingdom; 2: The Coal Authority, United Kingdom

Ground Deformations Observed for Three Decades (1992-2022) above Old and Deep Coal Mines Reused for Deep Gas Storage Sites (Wallonia, Belgium) Using PS-InSAR Time-series

Xavier Devleeschouwer¹, Atefe Choopani^1,2, Pierre-Yves Declercq¹

1: Royal Belgian Institute of Natural Sciences, Belgium; 2: University of Liège, Belgium

Determining Baseline Groundwater Chemistry at a Century-Old Mine

Andy Davis¹, Maggy Lengke¹, Michelle Rose², Jennifer Lane², Dennis Hosack²

1: Geomega, United States of America; 2: Nevada Gold Mines, United States of America

Quantifying Mineral Precipitation Processes during Dilution, Mixing, and Neutralization of Acid Rock Drainage

D. Kirk Nordstrom, Kate M. Campbell, Charles N. Alpers

USGS, United States of America

Evaluation Of The Changes In Mine Water Quality In The Witwatersrand Basin: Basis For Proactive Long-term Solution

Godfrey Madzivire^1,2, Lufuno Ligavha-Mbelengwa^1,3, Pamela Nolakana¹, Henk Coetzee¹

1: Council for Geoscience, South Africa, Water and Environment Unit, 280 Pretoria Street, Silverton, Pretoria, South Africa; 2: Department of Environmental Science, University of South Africa, Roodepoort, Johannesburg, South Africa; 3: University of the Free State, Institute for Groundwater Studies, 205 Nelson Mandela Drive, Bloemfontein

🎓 Geochemical Characterisation of the Witbank Coalfield Geological Strata and Assessment of Potential Metal Impact on the Receiving Environment

Khashane Robert Tshishonga Netshitungulwana¹, Christoph Gauert², Danie Vermeulen³, Bisrat Yibas³, Mateo Shai⁴, Rudzani Lusunzi¹

1: Council for Geoscience, South Africa; 2: Geological Survey of Saxony-Anhalt, Germany; 3: University of the Free State, South Africa; 4: Obusitse Secondary School, South Africa

Insights into the First Flush Effect – The Flooded Underground Mine as a Chemical Reactor

Elke Mugova¹, Christian Wolkersdorfer²

1: TU Bergakadmie Freiberg, Germany; 2: Tshwane University of Technology, South Africa

Oxidation Modelling to Optimise Waste Rock Storage

Tim Mulliner¹, Christine McLachlan²

1: GHD, New Zealand; 2: Bathurst Resources, New Zealand

Final Flooding of the Königstein Uranium Mine - Supporting Activities and Implications for Monitoring

Nadja Schmidt, Sven Eulenberger, Ulf Jenk

Wismut GmbH, Germany

Phalaborwa Complex: from Rock Drainage Characterization to Waste Revalorization

Alba Gómez-Arias^1,2, Lola Yesares³, Julio Castillo⁴, Danie Vermeulen⁵, Walter Purcell¹

1: Chemistry Department, University of the Free State, South Africa; 2: Centre for Mineral biogeochemistry, University of the Free State, South Africa; 3: Mineralogy and Petrology Department, Complutense University of Madrid, Spain; 4: Microbiology and biochemistry Department, University of the Free State, South Africa; 5: Institute for Groundwater Studies, University of the Free State, South Africa

Circular Economy Potential of Widescale Implementation of Sodium Carbonate Dosing for Circumneutral Zinc-rich Mine Water in Wales

Julia Kennedy

Cardiff University, United Kingdom

Inhibition of Methanogenesis through Redox Processes in Oil Sands Tailings

Alsu Kuznetsova, Iram Afzal, Navreet Suri, Petr Kuznetsov, Tariq Siddique

University of Alberta, Canada

Geochemistry of Tailings Storage, Management and Monitoring at Waihi Mine – 35 Years of Operational Best Practise.

James Pope¹, Mark Burroughs²

1: Verum Group Ltd, New Zealand; 2: OceanaGold, New Zealand

Dewatering of a Tailings Storage Facility: Key Aspects in the Design and Operation

Eduardo Ruiz¹, Lizardo Huamaní¹, Jairo Paucar¹, Julio Larota¹, Luis Meza², Rocío Narciso², Carlos Jimenez²

1: Amphos 21 Consulting Peru, Peru; 2: Minsur, Peru

Enhanced Passive Treatment of Sulfate and Nitrate Enriched Mine Water: Laboratory Optimisation Experiments

Hana Kirsten Christenson¹, Rachel Skews¹, Dave Trumm¹, James Pope¹, Nigel Newman¹, Gavin Lee², Duncan Ross², Charlotte Boyt²

1: Verum Group Ltd, 97 Nazareth Ave, Christchurch, New Zealand; 2: OceanaGold (NewZealand) Ltd, Golden Point Rd, Macraes Flat, New Zealand.

What Mineralogical Phases can Reasonably be Invoked in Geochemical Modeling of Pit Lakes?

Andy Davis, Charles Whitehead, Maggy Lengke

Geomega, United States of America

Rehabilitation of Extreme Chemical Substrates on Mine Sites Without Soil in a Semiarid Climate, New Zealand

David Craw, Cathy Rufaut, Dhana Pillai, Gemma Kerr

University of Otago, New Zealand

The Macraes Gold Mine Irrigation Project, New Zealand

Cathy Rufaut¹, David Craw¹, Erin Weightman¹, Dhana Pillai¹, Gavin Lee²

1: University of Otago, New Zealand; 2: Oceana Gold Ltd, New Zealand

Mediating Risk of Acid Generation - The Roles of Vegetation Direct Transfer

Robyn Simcock

Landcare Research, New Zealand

Determination of acid producing potential using pXRF: A case study from Cypress Mine, Stockton Plateau

Christine Jane McLachlan, Barry Walker

Bathurst Resources, New Zealand

Acid-base Accounting Tests in Combination with Humidity Cells Help Predict Waste Rock Reactivity

Andy Davis, Charles Whitehead, Maggy Lengke, Jerritt Collord

Geomega, United States of America

Central Region Water Resilience Project - Sustaining production in a changing climate

Tim Saxby, Sarah Buckley

BHP, Australia

Nordic Experiences in Climate Change Analysis in Modelling Mining Area Environmental Impacts

Kirsi-Marja Haanpää¹, Päivi Picken¹, Hannu Lauri¹, Anneli Wichmann¹, Linus Lejon Isaksson²

1: AFRY Finland; 2: AFRY Sweden

Development of a Streamflow Model Incorporating Stochastic Daily Climate, Climate Change, and El Niño La Niña Effects

David Pieter Hoekstra¹, Victor Munoz Saavedra², Carolina Milad³

1: SRK Consulting (US) Inc.; 2: SRK Consulting (Canada) Inc.; 3: SRK Consulting (Chile) Spa.

Rehabilitation of the Lusatian Water Balance, in Consideration of Climate Change and the End of Lignite Mining

Oliver Totsche, Katja Kunze

Lausitzer und Mitteldeutsche Bergbau-Verwaltungsgesellschaft, Germany

Climate Change Adaptation in BHP’s Queensland Mine Water Planning and Hydrologic Designs

Weixi {James} Zhan¹, Rory J. Nathan², Sarah Buckley¹, Alan G. Hocking¹

1: BHP, Australia; 2: University of Melbourne, Australia

Snowy River Mine Project

Simon Delander

Federation Mining, Australia

The BHP Global Approach to Mined Materials Management

Russell Staines

BHP, Australia

Mine Water Management at Stockton Coal Mine

Barry Walker

Bathurst Resources Ltd, New Zealand

INAP Projects Update

Gilles Tremblay

INAP, Canada

Post-Mining Hydrogeology of Underground Collieries – Effects of Hanging Wall Subsidence

Altus Huisamen, John Edward Glendinning

Jones & Wagener, South Africa

🎓 The Conundrum of Incongruent Multiple Age Tracer Results in Mine Water

Devmi Kurukulasuriya¹, William Howcroft¹, Karina Meredith², Wendy Timms¹

1: Deakin University, Australia; 2: Australian Nuclear Science and Technology Organisation, Institute for Environmental Research, Lucas Heights, NSW 2232, Australia

Ground Deformations Related to an Old Drainage Adit in The Abandoned Coal Concession Around Saint-Vaast (Wallonia, Belgium) Analyzed Using PS-InSAR and Piezometric Wells Time Series

Atefe Choopani^1,2, Benedicta Ronchi³, Pierre-Yves Declercq¹, Xavier Devleeschouwer¹

1: Department of Geological Survey of Belgium, Royal Belgium Institute of Natural Sciences, Brussels, Belgium; 2: Hydrogeology & Environmental Geology, Urban and Environmental Engineering Unit, University of Liège, Liège, Belgium; 3: Subsoil Risks Unit, Institut Scientifique de Service Public (ISSeP), Liège, Belgium,

Estimation of Mine Water Ingress Volumes for the Witwatersrand Goldfields

Henk Coetzee, Patrick Cole, Sealelo Ramugondo

Council for Geoscience, South Africa

Dewatering Experience at the Waihi Gold Mine - Lessons Learnt from 140 years of Mining an Epithermal Vein System

Christopher Kidd¹, Chris Simpson², Wayne Russell², Mark Burroughs³

1: Chris Kidd and Associates, Australia; 2: GWS Limited, New Zealand; 3: OceanaGold, New Zealand

A Holistic Approach to Water and Salt Management in Mining : Biological Treatment Solution to Allow Direct Discharge of Excess Water Instead of Brine Production Through Reverse Osmosis treatment

Caroline Jane Dale, Henri Jogand

Veolia Environment, France

Evaluating Manganese in Mine Water in UK Coal Authority Mine Water Schemes

Selina Mary Bamforth, Christopher Satterley

The Coal Authority, United Kingdom

Effective Attenuation of AMD Pollution Potential Using By-product from Municipal Wastewater Treatment

Elvis Fosso-Kankeu¹, Vhahangwele Masindi^2,3, Johannes Maree⁴, Bhekie Mamba⁵, Thabo Nkambule⁵

1: University of South Africa, South Africa; 2: University of South Africa, South Africa; 3: University of Limpopo; 4: University of South Africa, South Africa; 5: University of South Africa, South Africa

Neutralisation and Attenuation of Inorganic Contaminants from Acid Mine Drainage using the Clay Based-Nanocomposite

Matome Mothetha^1,2, Titus Msagati³, Vhahangwele Masindi^2,4, Kefeni Kebede²

1: Research and Committees unit, Legislature Department, City of Ekurhuleni; 2: Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa (UNISA); 3: Institute of Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of the South Africa; 4: Magalies Water (MW), Scientific Services (SS), Research & Development (R&D) Division

Predictive Water Balance and Mass Load Modelling for Mine Water Through a Passive Treatment System

Jeff Tuck¹, Stephanie Hayton², Sioban Hartwell¹

1: GHD, New Zealand; 2: OceanaGold, New Zealand

Potential Use Of Emerging Organic Contaminants As Pollution Source Tracers

Lufuno Ligavha-Mbelengwa^1,2, Godfrey Madzivire^1,3, Pamela Nolakana¹, Henk Coetzee¹, Modreck Gomo²

1: Council for Geoscience, South Africa; 2: University of the Free State, Institute for Groundwater Studies, South Africa; 3: University of South Africa, Department of Environmental Science, South Africa

Rapid Removal of Cr(VI) from Aqueous Solution Using Polycationic/di-metallic Adsorbent Synthesized Using Fe3+/Al3+ Recovered from Real Acid Mine Drainage

Khathutshelo Lilith Muedi¹, Vhahangwele Masindi^2,3, Jannie Maree⁴, Hendrik Gideon Brink¹

1: University of Pretoria, South Africa; 2: Magalies Water; 3: University of South Africa (UNISA); 4: ROC Water Technologies

Subaqueous Capping Of Oil Sands Tailings In End-Pit Lakes

Petr V. Kuznetsov, Ania C. Ulrich

University of Alberta, Canada

Applicability of Multistep Biological Passive Treatment for AMD Containing Iron, Zinc and Copper in Japan: A Full-Scale Case Study

Yusei Masaki, Tsubasa Washio, Kana Hagihara, Takaya Hamai, Kengo Horiuchi, Taro Kamiya, Kosuke Takamoto, Nobuyuki Masuda, Naoki Sato

Japan Oil, Gas and Metals National Corporation

Granitic Rocks Exposed Around Abandoned Tin Mines in Ban Rai Area, Uthai Thani Province, Thailand: Potential of Environmental Impact

Thitiphan Assawincharoenkij, Sirawit Kaewpaluk

Department of Geology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330 Thailand

Coal Mine Discharge Limits for Conductivity, Sulfate, and Manganese: A Survey across Developed Nations

William Strosnider¹, Justin Hugo², Nicholas Shepherd³, Brandon Holzbauer-Schweitzer³, Pedro Herve-Fernandez⁴, Christian Wolkersdorfer⁵, Robert Nairn³

1: University of South Carolina, United States of America; 2: Saint Francis University, United States of America; 3: University of Oklahoma, United States of America; 4: Universidad Austral de Chile, Chile; 5: Tshwane University of Technology, South Africa

Recovery Of Pt And Pd From Aqueous Solutions By N,N-di(trimethoxysilylpropyl)-N'-benzoylthiourea Modified Silica Gel

Malehlogonolo Ramogohlo Rosemary Mphahlele, Izak Aldert Kotzé, Alseno Kagiso Mosai, Hlanganani Tutu

University of the Witwatersrand, South Africa

Presence of Toxic Elements in Ore and Gangue Minerals of an Epithermal Au-Ag Deposit, Central Thailand: Application for Environmental Consideration

Sirawit Kaewpaluk¹, Thitiphan Assawincharoenkij¹, Christoph Hauzenberger², Abhisit Salam¹

1: Department of Geology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand; 2: Institute of Earth Sciences - NAWI Graz Geocenter, University of Graz, Universitaetsplatz 2, 8010 Graz, Austria

Integrated and Sustainable Mine Water Management Solution for Witwatersrand Gold Fields

Viswanath Ravi Kumar Vadapalli¹, Henk Coetzee¹, Sisanda Gcasamba¹, Koena Ramasenya¹, Thakane Ntholi¹, Sammy Nyale¹, Ethel Sinthumule², Molefe Morokane²

1: Council for Geoscience,Pretoria 0001, South Africa; 2: Department of Mineral Resources and Energy, Pretoria 0001, South Africa

The New Zealand Mine Environmental Lifecycle Guide Series

Jo Cavanagh¹, James Pope²

1: Manaaki-Whenua, New Zealand; 2: VerumGroup, New Zealand

Evaluation Of The Water Quality Impacts Associated With Relaxation Of Environmental Critical Levels: A Case Study In The West Rand Basin, South Africa

Pamela Nolakana¹, Lufuno Ligavha-Mbelengwa^1,2, Godfrey Madzivire^1,3, Henk Coetzee¹

1: Council for Geoscience, South Africa; 2: University of the Free State, Institute for Groundwater Studies, South Africa; 3: Department of Environmental Science, University of South Africa, South Africa

Post-Mine Underground Closure Aqueous Geochemistry

Andy Davis, Maggy Lengke, Jerritt Collord

Geomega, United States of America

Managing Legacy AMD to Achive Sucessful Mine Closure

Eden Sinclair¹, Paul Weber²

1: Bathurst Resources Ltd, New Zealand; 2: Mine Waste Management, New Zealand

🎓 Speciation of Metals in Sediments of the Sabie River System by Sequential Extraction

Rudzani Lusunzi^1,2, Frans Wandeers²

1: Council for Geoscience, South Africa; 2: North West University, South Africa

Efficiency of Indigenous and Naturally Occurring Ball Milled Magnesite Neutralization Agent for the Remediation of Acid Mine Drainage Contaminated Sites

Matome Mothetha^1,2, Titus Msagati³, Vhahangwele Masindi^2,4, Kefeni Kebede³

1: Research and Committees unit, Legislature Department, City of Ekurhuleni, South Africa; 2: Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa; 3: Institute of Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of the South Africa,; 4: Magalies Water (MW), Scientific Services (SS), Research & Development (R&D) Division

Dissolution Rates of Arsenic Minerals in Natural and Mining Environments, New Zealand

Gemma Kerr¹, David Craw¹, James Pope²

1: UNIVERSITY OF OTAGO; 2: Verum Group, New Zealand

Globe Progress Lake – Closure performance monitoring and adaptive management

Leo Navarro¹, Stephanie Hayton², Megan Williams², Paul Weber¹

1: Mine Waste Management, New Zealand; 2: OceanaGold, New Zealand

Modelling The Transport Of Pollutants From Mine Dump And Landfill Sites To Groundwater And Surface Water

Alseno Mosai, Heidi Richards, Hlanganani Tutu

University of the Witwatersrand, South Africa

Critical Decisions for AMD Management

Ros Green¹, John Chapman²

1: Rio Tinto, 155 Charlotte St, Brisbane 4000, Australian; 2: SRK Consulting (Australasia) Pty Ltd, Level 5, 200 Mary Street, Brisbane, Queensland, 4000, Australia

More Effective Assessment and Control of Acid Mine Wastes based on Mineralogy

Roger Smart

Blue Minerals Consultancy, Australia

Swimming Upstream or Going with the Flow - a Practitioners View on Challenges and Opportunities for Mining in the 2020's

Gavin James Lee

OceanaGold (NewZealand) Ltd, New Zealand

Recharge Flooding

Eelco Lukas, Danie Vermeulen, Alba Gomez Arias

University of the Free State, South Africa

Investigating the Effects of Temperature on Density Stratification in a flooded Analogue Model Mine

Leshego Esther Molaba, Christian Wolkersdorfer

Tshwane University of Technology, South Africa

Impact of Dewatering of the Planned Lignite Open Pit in Poland on the Water Environment on the Basis of Groundwater Flow Model

Jacek Szczepiński

Poltegor-Institute of Opencast Mining, Poland

Nitrate Dynamics at Mine Sites – Broader Context, Source and Management Considerations

Wijnand Gemson, Terry Harck, Ryan Burgess

Hydrogeochem Group, Australia

🎓 Metals Removal from Acid Mine Water by Wood-Ash Amended Biochar

Stuart Cairns¹, Aaron Martin Lawrence Todd¹, Iain Robertson¹, Patrick Byrne²

1: Geography Department, Swansea University, SA2 8PP United Kingdom; 2: School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom

Opportunities to Improve Water Quality during Abandoned Mine-Tunnel Reclamation

Katherine Walton-Day¹, James Gusek², Connor Newman¹

1: U.S. Geological Survey, Colorado Water Science Center, United States of America; 2: Linkan Engineering

In situ Mine Water Treatment of Flooded Underground Mines Using Waste Concrete: A Feasibility Study

Sisanda Prudence Gcasamba¹, K. Ramasenya¹, M. Lekgothoane¹, S.M. Nyale¹, V.R.K. Vadapalli¹, G. Madzivire¹, Henk Coetzee¹, Ethel Sinthumule², Molefe Morokane²

1: Council for Geoscience, South Africa; 2: 2Department of Mineral Resources and Energy, South Africa

Stockton Coal Mine. Management of AMD Sludge

Jodi Murray, Barry Walker

BT Mining, New Zealand

Discoveries and Development of Passive Treatment Systems

Jeff Skousen¹, Robert Kleinmann², Robert Nairn³, Bob Hedin⁴, James Gusek⁵, Thomas Wildeman⁶

1: West Virginia University, United States of America; 2: HDR, Pittsburgh, PA, USA; 3: University of Oklahoma, USA; 4: Hedin Environmental, Pittsburgh, PA, USA; 5: Linkan, Golden, CO, USA; 6: Colorado School of Mines, Golden, CO, USA

Improving our Understanding of Environmental Stress in Mining Landscapes

Christopher Weisener

University of Windsor, Canada

Geochemistry and Leaching of Selenium from Coal Waste Rock

Andrea Ruth Gerson

Blue Minerals Consultancy, Australia

Detection And Measurement Of Dissolved Metals In Mine Water Using Cation-Binding Resins And Field Portable XRF

Daniel Arulraj Abraham, Fei Jin, Ilemona Okeme, Devin Sapsford

School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA

Developing The Business Case For Responsible Acid And Metalliferous Drainage (AMD) Management

Carolyn Oldham^1,2, Ana Catarina Singh^1,2, Lisette Kanse^1,2, Chantal Bourgault^1,2

1: The University of Western Australia, Australia; 2: Cooperative Research Centre for Transformations in Mining Economies

Public Opinion on Mine Water in Three Former German Hard Coal Mining Regions

Stefanie Walter¹, Elke Mugova², Christian Wolkersdorfer³

1: Mittweida University of Applied Sciences, Germany; 2: TU Bergakademie Freiberg, Germany; 3: Tshwane University of Technology, South Africa

Integrating Water Planning into Operational Mine Planning

Ainsley Camille Ferrier, Shane Clauson

Deswik

Recycled Concrete Aggregate for Long-term Passive Treatment of Acidic and Metallic Mine Discharge – The Proof that it Works

Adrian Brown

Adrian Brown Consultants, Inc., United States of America

The effectiveness of upgrading the Van Ryn Canal as an option to reduce water ingress into the underground mine workings in the East Rand of the Witwatersrand Basin in Gauteng Province, South Africa

Selaelo Jacquelene Ramugondo, Donald Molapo, Henk Coetzee, Kefyalew Tegegn

Council for Geoscience, South Africa

Application of Pulverized Kaolin Clay for Remediation of Acid Mine Drainage

Matome Mothetha^1,2, Titus Msagati³, Vhahangwele Masindi^2,4, Kefeni Kebede²

1: Research and Committees unit, Legislature Department, City of Ekurhuleni; 2: Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa (UNISA),; 3: Institute of Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of the South Africa; 4: Magalies Water (MW), Scientific Services (SS), Research & Development (R&D) Division,

Passive Treatment For Elevated Iron And Arsenic In Circum-Neutral Mine Affected Water

Stephanie Hayton^1,2, Dave Trumm³, Travis Horton¹, James Pope³, Duncan Ross², Megan Williams²

1: University of Canterbury; 2: OceanaGold; 3: Verum Group

Selection and Design of a Full-Scale Vertical Flow Reactor for As and Fe Treatment, Globe Progress Mine, New Zealand

Dave Trumm¹, Stephanie Hayton², William Olds³, Calvin Wu⁴, Megan Williams², Jeff Nyenhuis², James Pope¹

1: Verum Group, New Zealand; 2: OceanaGold; 3: Mine Waste Management; 4: Engineering Geology Limited

Passive Treatment Of AMD Using a Full-Scale Upflow Mussel Shell Reactor, Echo Coal Mine, New Zealand

Dave Trumm¹, Eamon Moynihan², Jill Young², James Pope¹

1: Verum Group, New Zealand; 2: New Zealand Coal & Carbon Ltd, New Zealand

Bacteria-mineral Interactions: a Bacterial View of Mine Water Systems

Gordon George Southam

The University Of Queensland, Australia

The Evolving Nature of Active, Passive, and Semi-Passive Mine Water Treatment Technologies

Bob Kleinmann¹, Andre' Sobolewski², Jeff Skousen³

1: Editor-in-Chief, Mine Water and the Environment; 2: Clear Coast Consulting, Inc., Vancouver, Canada; 3: Div. of Plant and Soil Sciences, West Virginia Univ., Morgantown, WV, USA

Circular Economy and Mine Water Treatment

Devin Sapsford

Cardiff University, United Kingdom

Science, Engineering, Regulatory Practice and Sustainability: Some Thoughts

Darrell Kirk Nordstrom

US GS, United States of America

Student Awards & IMWA Presidents Address

Christian Wolkersdorfer

Tshwane University of Technology (TUT), South Africa

IMWA 2023 Preview

Peter Clive Stanley

Natural Resources Wales, United Kingdom

Closing

James Pope

Verum Group Ltd, New Zealand