Published Works

Selected Publications

Littlejohn Environmental Consulting is dedicated to sharing valuable insights and knowledge through a wide variety of publications.

Image depicting a rocky shoreline with a small, rocky stream. Rust-colored deposits are visible in the water, and a line of large boulders separates the creek from a treeline of evergreen trees in the background. The sky is overcast.

Advancing Environmental Solutions

Littlejohn Environmental Consulting is dedicated to advancing environmental solutions in the mining and resource sectors.

Our strong commitment to sustainable natural resource management drives our work, which focuses on researching, developing, and implementing strategies for environmental remediation and resource recovery, particularly in water-related issues.

The following collection of journal articles, patents, conference publications, and presentations demonstrate our capabilities in addressing such challenges. We hope you will see our active participation as a testament to our continuous effort to share knowledge and contribute to the field of environmental consulting.

Journal Articles

Mine Water Surplus and Discharge Planning in Tailings Facilities in British Columbia

2020
Freed, R. Littlejohn, P., Stano, M.
Paper submitted and under revisions

Selective Ammoniacal Elution of Nickel and Cobalt from Scavenging Loaded Ion Exchange Resin

2014
Littlejohn, P. and Vaughan, J.
Hydrometallurgy 141: 24-30

Recovery of Nickel and Cobalt from Laterite Leach Tailings Through Resin-In-Pulp Scavenging and Selective Ammoniacal Elution

2013
Littlejohn, P. and Vaughan, J.
Minerals Engineering 54: 14-20

Selectivity of Commercial and Novel Mixed Functionality Cation Exchange Resins in Mildly Acidic Sulfate and Mixed Sulfate–Chloride Solution

2012
Littlejohn, P. and Vaughan, J.
Hydrometallurgy 121-124: 90-99

Patents

Removal of Dissolved Selenium from Aqueous Solutions

2016
Kratochvil, D., Mohamm. F., Littlejohn, P., and Sanguinetti, D.
Patent US20160289092

Resin Scavenging of Nickel and Cobalt

2014
Vaughan, J. and Littlejohn, P.
Patent application WO2014040138A1

Conference Publications

Advancement in Non-Biological Selenium Removal Treatment Systems – Results of Continuous Pilot Scale Operations

2017
Littlejohn, P., Mohamm. F., and Kratochvil, D.
WEFTEC 2017
Chicago, USA

Achieving Sub-ppb End-of-Pipe Selenium Targets and Stable Solids Residues Using Selen-IX™: Combining Ion Exchange and Electroreduction

2017
Mohamm. F., Kratochvil, D., and Littlejohn, P.
Conference of Metallurgists 2017
Vancouver, Canada

Selen-IX™: Ion Exchange and Electrochemistry at Work to Cost Effectively Remove Selenium from Mine Impacted Waters to Ultra-Low Concentrations

2016
Mohammadi. F., Littlejohn, P., and Kratochvil, D.
International Mineral Processing Congress 2016
Quebec City, Canada

Reducing Life Cycle Costs of Active Treatment for Selenium and Arsenic in Mine Waters and Metallurgical Waste Streams

2015
Kratochvil, D., Littlejohn, P., and Lopez, O.
Society for Mining, Metallurgy and Exploration Conference
Denver, USA

Utilizing Novel Technology for Residue Management and Sustainable Mine Closure

2015
Littlejohn, P., Kratochvil, D., and Consigny, A.
Mine Closure 2015
Vancouver, Canada

Calcium Removal from Cooling Tower Water by Ion Exchange

2014
Littlejohn, P., Kratochvil, D., and West, A.
Cooling Tower Institute Annual Conference 2014
Houston, USA

Selective Metal Recovery to Offset Cost of Arsenic Removal with Sulphide Precipitation

2014
Mohammadi, F. Littlejohn, P., and Sanguinetti, D.
53rd Conference of Metallurgists 2014
Vancouver, Canada

Selen-IX™: Selenium Removal from Mining Affected Runoff Using Ion Exchange Based Technology

2014
Mohammadi. F., Littlejohn, P., West, A., and Hall, A.
Hydrometallurgy 2014
Victoria, Canada

Removal of Hardness and Sulfate from Flue Gas Desulfurization Effluent Using Ion Exchange

2013
Littlejohn, P., Kratochvil, K., Baker, B., and Fatula, P.
International Water Conference 2013
Orlando, USA

SART for Complex Gold Ores

2013
Littlejohn, P., Kratochvil, K., and Hall, A.
World Gold 2013
Brisbane, Australia

Elution Strategies for Recovery of Nickel and Cobalt from Laterite Tails through Scavenging Resin-in-Pulp

2012
Littlejohn, P. and Vaughan, J.
ALTA Ni/Co/Cu 2012
Perth, Australia

Resin-in-Pulp for Metalliferous Mine Drainage Remediation

2012
Littlejohn, P. and Vaughan, J.
51st Conference of Metallurgists 2012
Niagra Falls, Canada

Selective Ammoniacal Elution of Nickel and Cobalt from Iminodiacetate Cation Exchange Resin

2010
Littlejohn, P. and Vaughan, J.
ALTA Ni/Co/Cu 2010
Perth, Australia

The Enhancing Effect of Pyrite on Ferrous Oxidation by Dissolved Oxygen

2008
Littlejohn, P. and Dixon, D.
Hydrometallurgy 2008
Phoenix, USA

Short Courses & Presentations

Beyond Geochemistry – Contaminant Deportment and Mine Water Management

2020
BC Mining Community of Practice

Integration of Metallurgy and Toxicity with Water Treatment Design

2019
Vancouver, Canada
Vancouver Chapter of CIM

Technical Communication for Engineering Postgraduates

2014, 2015, 2016, 2017, 2019
Masters of Engineering Leadership (2019), UBC CHBE/MTRL Graduate Student Societies (2014-2017)

Advanced Tailings and Mine Waste Facility Design, Construction, Operation, and Closure

2015, 2016, 2018
EduMine

Fundamentals of Mine Water Treatment

2017
EduMine

Advanced Mine Water Management and Treatment

2015, 2016
EduMine

Issues and Innovation in Water Management and Treatment

2015
Vancouver, Canada
Tailings and Mine Waste (Invited Keynote)