1. Dear Reader

   • Bob Kleinmann

   Editorial 11 November 2021 Pages: 809 - 810

   

2. China’s Relationship with IMWA

   • Qiang Wu

   IMWA Insights 18 August 2021 Pages: 811 - 812

3. Mine Water and the Environment in Wales

   • Paul Edwards

   IMWA Insights 18 August 2021 Pages: 813 - 814

4. Water in Mining and Environment for Sustainability

   • Nural Kuyucak

   IMWA Insights 24 August 2021 Pages: 815 - 817

5. The Early Development of Passive Treatment Systems for Mining-Influenced Water: A North American Perspective

   • Bob Kleinmann
   • Jeff Skousen
   • Jim Gusek

   Technical Communication Open access 15 September 2021 Pages: 818 - 830

   

6. Correction to: The Early Development of Passive Treatment Systems for Mining-Influenced Water: A North American Perspective

   • Bob Kleinmann
   • Jeff Skousen
   • Jim Gusek

   Correction 29 October 2021 Pages: 831 - 832

7. Development of a Geochemical Model to Predict Surface Water Discharge Compositions in Northern Saskatchewan: Applications of PHREEQC and PhreePlot to Identify Active Geochemical Processes

   • John Mahoney
   • Ryan Frey
   • John Rowson

   Technical Article 28 November 2021 Pages: 833 - 846

   

8. Electrokinetic Studies of Mine Tailings Considering Dewatering and Mass Transport at the Miduk Copper Mine, SE Iran

   • Foojan Shafaei
   • Faramarz Doulati Ardejani
   • Aliasghar Amini

   Technical Article 02 August 2021 Pages: 847 - 863

   

9. Causes and Effects of a Water Spill from the Underground Pit of the Dashu Pyrite Mine, Southern Sichuan Basin, Southwest China

   • Bo Li
   • Guo Liu
   • Zhong Ye

   Technical Article 26 September 2021 Pages: 864 - 876

   

10. Control of Water-Flowing Fracture Development with Solid Backfill Mining: Designing a Backfill Body Compression Ratio for Water Resources Protection

    • Yun Zhang
    • Shenggen Cao

    Technical Article 07 September 2021 Pages: 877 - 890

    

11. A Fuzzy Analytical Process to Assess the Risk of Disaster when Backfill Mining Under Aquifers and Buildings

    • Jiawei Liu
    • Binbin Yang
    • Lihong Duan

    Technical Article 14 September 2021 Pages: 891 - 901

    

12. Modelling of Salt Leaching from Coal Mine Spoils at Two Scales

    • Neil McIntyre
    • Karan Rishabhkumar Jain
    • Mansour Edraki

    Technical Article 02 August 2021 Pages: 902 - 918

    

13. Regional Groundwater Flow Modelling of the Asturian Central Coal Basin (Spain)

    • Lorena Álvarez-Álvarez
    • José Paulino Fernández-Álvarez

    Technical Article 28 October 2021 Pages: 919 - 930

    

14. Analytical, Numerical and Experimental Studies on Steady-State Seepage Through 3D Rockfill Trapezoidal Dikes

    • Yulong Zhai
    • Li Li
    • Robert P. Chapuis

    Technical Article 28 August 2021 Pages: 931 - 942

    

15. Cyanides, Arsenic, and Noble Metals in Abandoned Gold Ore Cyanidation Tailings and Surface Waters in a Permafrost Region (Transbaikal Territory, Russia)

    • Nataliya Yurkevich
    • Vladimir Olenchenko
    • Tatyana Korneeva

    Technical Article 23 September 2021 Pages: 943 - 955

    

16. Assessing Water and Sand Inrushes Hazard Reductions due to Backfill Mining by Combining GIS and Entropy Methods

    • Yong Liu
    • Jiawei Liu
    • Shichong Yuan

    Technical Article 22 September 2021 Pages: 956 - 969

    

17. Experimental Evaluation of Airlift Performance for Vertical Pumping of Water in Underground Mines

    • Parviz Enany
    • Oleksandr Shevchenko
    • Carsten Drebenstedt

    Technical Article Open access 14 August 2021 Pages: 970 - 979

    

18. Identification and Prioritisation of Mine Pollution Sources in a Temperate Watershed Using Tracer Injection and Synoptic Sampling

    • Patrick Byrne
    • Alan Yendell
    • Aaron M. L. Todd

    Technical Article Open access 29 September 2021 Pages: 980 - 993

    

19. Parastrephia quadrangularis: A Possible Alternative to Inhibit the Microbial Effect on the Generation of Acid Mine Drainage

    • Josefina Plaza-Cazón
    • Esteban González
    • Edgardo Rubén Donati

    Technical Article 23 September 2021 Pages: 994 - 1002

    

20. Experimental Study of Coal Sample Damage in Acidic Water Environments

    • Qiangling Yao
    • Chuanjin Tang
    • Zhaohui Chong

    Technical Article Open access 12 August 2021 Pages: 1003 - 1015

    

21. Potential for Passive Treatment of Coal Mine-derived Acid Mine Drainage in Abandoned Stream Channels

    • Shagun Sharma
    • Nicholas J. Wander
    • John M. Senko

    Technical Article 12 August 2021 Pages: 1016 - 1024

    

22. Effects of Calcium and Aluminum on Particle Settling in an Oil Sands End Pit Lake

    • Kai Wei
    • Heidi L. Cossey
    • Ania C. Ulrich

    Technical Article Open access 07 August 2021 Pages: 1025 - 1036

    

23. Water-inrush Risk through Fault Zones with Multiple Karst Aquifers Underlying the Coal Floor: A Case Study in the Liuzhuang Coal Mine, Southern China

    • Jian Zhang
    • Liangliang Guo
    • Dexing Zhao

    Technical Article 02 August 2021 Pages: 1037 - 1047

    

24. CFD-DEM Coupled Simulation of Broken Rock Mass Movement During Water Seepage in an Underground Goaf Reservoir

    • Cun Zhang
    • Sheng Jia
    • Yue Jiao

    Technical Article 21 September 2021 Pages: 1048 - 1060

    

25. Water Inrush Detection in Limestone Pit Rock Walls Using Borehole-to-Surface ERT

    • Maoxin Su
    • Yimin Liu
    • Xiaoyin Ma

    Technical Article 07 August 2021 Pages: 1061 - 1072

    

26. Dr. Jacek Libicki 1934–2021

    • Rafael Fernández-Rubio

    Obituary 21 September 2021 Pages: 1073 - 1075

    

27. Professor Raghu Nath Singh

    • Rafael Fernández Rubio

    Obituary 30 August 2021 Pages: 1076 - 1078