SRK at 11th ICARD | IMWA 2018

Join our specialist team to discuss key solutions and technologies for your mining, water, environmental, infrastructure and energy projects.

SRK Consulting is part of the SRK Group, and independent, international organisation of professional engineers and scientists, providing a comprehensive range of technical consulting services to the natural resource industries.

Meet SRK's technical advisers at the 11th ICARD | IMWA 2018 Annual Conference from 10 to 14 September 2018.

SRK is a proud sponsor of IMWA2018

  Technical Presentations

The Application of Hydropedology Surveys to Quantify Near-Surface Impacts from Mining Waste

Near-surface and lateral flow discharge comprise an often neglected pathway for contaminant movement from mine wastes toward downslope water resources.

Presenter: Simon Lorentz (SRK South Africa) | Read more

Vermiculite Covers on Mining Wastes in a Semi-Arid Environment in South Africa

Deposition of large quantities of mining waste can have major negative impacts on surface and ground water resources. These impacts necessitate reclamation and amelioration of the wastes through various measures, but primarily through a first level of remediation in the placing of cover systems over the waste.

Co-Presenter: Simon Lorentz (SRK South Africa) | Read more

Assessment of Scordite Precipitation from Mine Waters

Arsenic release from mine waters is often predicted to be limited by precipitation of scordite (FeAsO4.2H2O). Although scorodite is often cited as the most stable form of arsenic in supergene environments its actual stability field in terms of redox potential and pH is highly limited and is sensitive to variations in trace element chemistry, redox potential, temperature and pH.

Presenter: Rob Bowell (SRK UK) | Read more

Geochemical assessment of Metal/Metalloid release by contrasting laboratory methods; The importance of secondary minerals

Polymetallic arsenic-rich mineralized waste from Penberthy Croft, an abandoned copper-tin mine in South West England, hosts a unique assemblage of more than 200 oxide zone minerals. In addition, sulfide minerals, are also present in the exposed mine waste. Such material exposed to oxygen and water can generate acidic drainage with levels of metals/metalloids and present a potential environmental hazard.

Presenter: Rob Bowell (SRK UK) | Read more

Geochemical and Bioreactivity Assessment of Future Mining Operations at Mutanga Uranium Project, Southern Province, Zambia

Current concerns over global warming and fossil fuel impacts have led to an increasing demand for low CO2 producing forms of energy, including nuclear power, resulting in increased uranium exploration activity. However, concern exists for the release of radionuclides and associated metals from such mining and therefore require continuous monitoring and adaptive management.

Presenter: Rob Bowell (SRK UK) | Read more

Determination of the Rate of Release of Nitrates from Waste Rock, Tailings and Kimberlite in Field Conditions – A Case Study

This paper presents a case study on the determination of the release rate of nitrates from waste rock, tailings and kimberlite using field kinetic tests (FKT). The FKT cells were monitored over a period of 3 years.

Presenter: Levi Ochieng (SRK South Africa) | Read more

The influence of licence conditions on mine water management

The influence of licence conditions on mine water mMines in South Africa are required to obtain a Water Use Licence (WUL) and must undertake compliance audits to assess the extent to which compliance to the WUL is being achieved.

Presenter: Jacqueline (Jacky) Burke (SRK South Africa) | Read more

Remediation Options For Wind-remobilised Pb-Zn Old Tailings: An Example From An 80-year Pb-Zn-Ag Mine in NW-Argentina

Pb-Zn-Ag mining has an 81-year history at Mina El Aguilar in Jujuy province, NW-Argentina, where more than 20Mt ore has been processed since 1936. Tailings have been disposed in seven impoundments covering 5km2.

Presenter: Camilo Raul de los Hoyos (SRK Argentina) | Read more

Performance and Review of Passive Minewater Treatment Sites, Pelenna Valley, Wales

A series of five constructed passive wetlands were constructed between 1995-1999 in the Pelenna valley, South Wales to treat various minewater discharges from abandoned coal mines.

Presenter: Alyson Bannister (SRK South Africa) | Read more

Lifetime Assessment of an Operating Tailings Facility through Modelling of the Unsettled Tailings Layer

In operational tailings facilities, there is pressure to quantify the remaining capacity of the facility, in order to manage large inflow events and to plan for future expansions.

Presenter: Samantha Barnes (SRK Vancouver) | Read more

Platinum Tailings Review - A comparison of the water quality in the tailings dam to the surrounding groundwater

There are a number of platinum mines in South Africa that exploit platinum group minerals (PGMs) within the Rustenburg Layered Suite of the Bushveld Igneous Complex (BIC).

Presenter: Sarah Jane Wolfe Skinner (SRK South Africa) | Read more

Mine Design for In-Situ Control of Selenium and Nitrate

Management and control of selenium and nitrate can be among the most challenging and costly aspects of mine water management. The growing understanding of ecological effects caused by selenium in aquatic environments has driven the development of better and more reliable mitigation measures over the last two decades.

Presenter: Soren Jensen (SRK Vancouver) | Read more

The Challenges of Predictive Numerical Calculation within Hypersaline Brines: Examples from Lithium Brines

Lithium brines, today’s main lithium source have been increasingly studied in recent years. Geochemical modelling can be used to predict the operational or underground brine lithium concentrations, but it can also be applied to ground stability prediction.

Presenter: Julien Declercq (SRK UK) | Read more

  Technical Poster

Furthering the Conceptual Groundwater Model for Sarcheshmeh Copper Pit, Iran

A conceptual hydrogeological model is an essential tool for the interpretation of available data and its linkages to understanding the relationships between components of the groundwater system, and other variables in a given problem. The climate, structural geology, dyke emplacement and hydrothermal alteration in the vicinity of the Sarcheshmeh Copper Porphyry play important roles in determining the hydrogeological conditions at the Sarcheshmeh open pit mine. Inflows into the pit and pore pressure distribution around the pit will be dictated by these and other factors.

Poster Presenter: Colleen Kessopersadh (SRK South Africa) | Read more


Meet our experts

James Lake
Partner / Principal Environmental Scientist

Simon Lorentz
Principal Hydrogeologist

Jacky Burke
Principal Environmental Scientist

Sarah Skinner
Principal Scientist

Colleen Kessopersadh

Levi Ochieng
Senior Geochemist)

Bishwarnand Sahadeo
Principal Scientist (Water Chemistry)

Alyson Rudman
Environmental Scientist

Jaya Omar
Marketing Manager


Rob Bowell
Corporate Consultant (Geochemistry)

Carl Williams
Senior Consultant (Geochemistry)

Julien Declercq
Senior Consultant (Geochemistry)


Russell Staines
Principal Consultant (Geochemistry)


Camilo De Los Hoyos
Senior Consultant (Geology)


Soren Jensen
Principal Environmental Engineer

Michael Herrell
Senior Geochemist

Samantha Barnes
Senior Consultant (Geology)

10 - 14 September 2018

SRK Africa