Christian Maurice
Christian Maurice

Christian Maurice

Associate Professor
Luleå University of Technology
Soil Mechanics
Mining and Geotechnical Engineering
Department of Civil, Environmental and Natural Resources Engineering
Christian.Maurice@ltu.se
+46 (0)920 491755
F1034 Luleå

Field of research

Christian works with questions related to trace elements spreading in water and soil. The aim of the researcher is to better assess and treat pollutants dissolved and adsorbed in soil. The application of the research is to bind trace elements to the matrix or mobilise them through leaching. Christian works with arsenic in soil, remediation of mining waste, sampling strategy, toxicity and leaching tests. Christian is active in the soil remediation center (MCN).

Background

Christian has a PhD from the department of environmental technology at Luleå University of technology. He has a degree in geological engineering from ENSG in Nancy. His PhD-studies dealt with natural system to treat emissions from landfills. 

Mixing of Green liquor dregs and ash
Mixing of Green liquor dregs and ash

Research projects

Utilisation of Green liquor dregs (GLD) for the treatment of mining waste

Mining operations result in huge amounts of waste rock and tailings that may have detrimental effects on soil, water and biota. The aim of the project is to study if Green liquor dregs (GLD), alkaline rest products from the paper industry, can be used as sealing layers for remediation of sulphide-bearing tailings and other sulphidic materials. The project is financed by Formas.

Chemicals for soil washing of arsenic polluted soil

Large amounts of arsenic polluted soil resulting from former wood impregnation activities are landfilled. The aim of the project is to find adequate chemical mixtures to leach arsenic from the soil particles. The project is financed by Formas in cooperation with KTH.

Assessment of redox sensitive elements.

Redox sensitive elements such as arsenic are more mobile under anaerobic conditions. The leaching tests that are used today do not take into account anaerobic conditions and underestimate the mobility of such elements. The aim of the project is to suggest alternative leaching procedures for materials containing redox sensitive elements such as arsenic soil, pyrite cinders, and blast furnace slag. The project is financed by EU-objective 2.

Sampling strategy for brownfields.

Hugh resources are spent to investigate brownfields. However, the results are often of poor quality. The aim of the project is to optimise sampling strategy for brownfields to retrieve as much information as possible and to assess the quality of it. The project is financed by EU-objective 2.

Publications

Article in journal

Effects of the co-disposal of lignite fly ash and coal mine waste rocks on AMD and leachate quality (2019)

Qureshi. A, Maurice. C, Öhlander. B
Environmental science and pollution research international, Vol. 26, nr. 4, s. 4104-4115
Article in journal

Geotechnical and chemical characterization of field-applied fly ash as sealing material over mine tailings (2019)

Jia. Y, Stahre. N, Maurice. C, Öhlander. B
International Journal of Environmental Science and Technology, Vol. 16, nr. 3, s. 1701-1710
Article in journal

Variation of green liquor dregs from different pulp and paper mills for use in mine waste remediation (2019)

Jia. Y, Hamberg. R, Qureshi. A, Mäkitalo. M, Maurice. C
Environmental science and pollution research international
Conference paper

Monitoring a field application of a Green Liquor Dregs-till mixture in a sealing layer on top of sulfidic mine waste (2018)

Nigéus. S, Maurice. C
Part of: 11th ICARD | IMWA | WISA MWD 2018 Conference, Risk to Opportunity, s. 57-63, 2018