Hae LUTPubista
Aineistot 1-10 / 53
Model-based design and optimisation of hydrometallurgical liquid–liquid extraction processes
(Lappeenranta University of Technology, 2018-11-12)
Hydrometallurgical methods are suitable for the treatment of primary, secondary, highand low-grade raw materials enabling the production of metals essential to modern society, in an environmentally and economically sustainable ...
Novel treatment methods for green liquor dregs and enhancing circular economy in kraft pulp mills
(Lappeenranta University of Technology, 2018-12-17)
Green liquor dregs (GLD) are known to be the largest fraction of inorganic residue in the kraft pulping process, or even in virgin pulp production. GLD originates from the chemical recovery cycle where effective cooking ...
Towards sustainable production of value-added chemicals and materials from lignocellulosic biomass: carboxylic acids and cellulose nanocrystals
(Lappeenranta University of Technology, 2018-11-02)
Industrial production of many chemicals and chemical products depends primarily on fossil resources. Lignocellulosic biomass, which is the most abundant and sustainable biomass on earth, is a potential renewable resource ...
Treatment of mining waters by electrocoagulation
(Lappeenranta-Lahti University of Technology LUT, 2020-02-21)
The mining industry is known to be one of the major contributors to the pollution of aquatic systems. The presence, in mining water, of various contaminants in relatively high concentrations (the most common cations being ...
Modification of carbon-based electrodes using metal nanostructures : Application to voltammetric determination of some pharmaceutical and biological compounds
(Lappeenranta-Lahti University of Technology LUT, 2019-08-16)
In this study, new modified carbon-based electrodes were fabricated and applied in the detection and determination of several medicines and water pollutants. Modification enhanced the use of these electrodes for analytical ...
Selective recovery of rare earth elements from diluted aqueous streams using n- and o-coordination ligand grafted organic-inorganic hybrid composites
(Lappeenranta-Lahti University of Technology LUT, 2019-06-04)
The dominance exerted by the rare earth elements (REE) on the significant technological advancements of the past decades has been unmitigated and unparalleled. With such an eminent role played by REEs, there exists a ...
Towards a sustainable valorisation of spilled oil by establishing a green chemistry between a surface active moiety of chitosan and oils
(Lappeenranta-Lahti University of Technology LUT, 2019-08-15)
This thesis presents fabrication of sustainable surfactants from bio-polymer and demonstrates their performance in dispersion of spilled oil with different quality of water and climatic conditions, to provide a sustainable ...
Hydrothermal stability of microfibrillated cellulose
(Lappeenranta-Lahti University of Technology LUT, 2019-09-06)
The aim of this study was to investigate the effects of hydrothermal treatment on microfibrillated cellulose (MFC). MFC gels were prepared by fibrillating never-dried kraft and dissolving pulps pretreated with endoglucanase. ...
Synthesis of hybrid bio-nanocomposites and their application for the removal of rare earth elements from synthetic wastewater
(Lappeenranta-Lahti University of Technology LUT, 2019-06-03)
In recent decades, the application of rare earth elements (REEs) has become apparent in numerous technological sectors. The gap in the supply and demand of REEs, as well as the increasing pollution of REEs, has raised the ...
Atomic Layer Deposition of Catalytic Materials for Environmental Protection
(Lappeenranta-Lahti University of Technology LUT, 2019-06-11)
The reduction of toxic pollutants emitted by human activities to ambient air is an important issue nowadays. The technological approach to this problem is the development of different oxidation techniques together with ...