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Pulsed corona discharge for wastewater treatment and modification of organic materials
(Lappeenranta-Lahti University of Technology LUT, 2019-07-02)
Sustainable development is one of the most important questions in the contemporary world. Wastewater treatment and the search for renewable sources of organic products are essential, not only in the future but also for ...
Membrane bioreactor for the removal of emerging contaminants from municipal wastewater and its viability of integrating advanced oxidation processes
(Lappeenranta-Lahti University of Technology LUT, 2019-10-01)
Water scarcity is undoubtedly a global concern due to exacerbated population growth, economic development, climate change, and rapid urbanization. This has necessitated the need for establishing more sustainable and ...
Mass transfer modeling in slow-release dissolution and in reactive extraction using experimental verification
(Lappeenranta-Lahti University of Technology LUT, 2019-12-05)
In this thesis, models related to mass transfer operations were studied in two cases. One study case was the dissolution of potassium chloride (KCl) particles in water, and another study case was the reactive solvent ...
Ligno-cellulose fibre poly(lactic acid) interfaces in biocomposites
(Lappeenranta University of Technology, 2018-11-23)
Thermoplastic composite materials based on renewable raw materials are promoted globally in various ways. They can be prepared as durable, but biodegradable materials as poly(lactic acid) (PLA) ligno-cellulose composites ...
Modified chitosan nanoparticles at liquid-liquid interface for applications in oil-spill treatment
(Lappeenranta University of Technology, 2018-12-10)
Oil-spills continue to be a serious threat to the environment and the climate change is expected to increase oil related industry and transportation in Arctic regions due to the melting of the ice cover. Nanoparticles ...
Experimentally validated numerical modelling of reacting multiphase flows in stirred tank reactors
(Lappeenranta-Lahti University of Technology LUT, 2019-04-12)
Homogenization of reacting flows by mixing is often important in order to achieve high reaction rates. Mechanical RANSagitation is the usual way to homogenize fluids used in industry. When supplied to fluid media, mechanical ...
Synthesis and performance of metal-halide perovskites as new visible light photocatalysts
(Lappeenranta-Lahti University of Technology LUT, 2021-01-20)
Solar-light power, as a sustainable energy source, is renewable, inexhaustible, and available worldwide. The scientific and engineering interest in solar-light based technologies has grown exponentially as a cost-effective ...
Power-to-methanol via membrane contactor-based CO2 capture and low-temperature methanol synthesis
(Lappeenranta-Lahti University of Technology LUT, 2020-12-04)
In the power-to-methanol concept, methanol acts as a platform chemical facilitating the integration of renewable electricity and captured CO2 into the fuel and chemical value chains, helping to substitute fossil resources ...
Direct capture of CO2 from air using amine-functionalized resin - Effect of humidity in modelling and evaluation of process concepts
(Lappeenranta-Lahti University of Technology LUT, 2021-12-17)
Direct air capture (DAC) using adsorbents is a promising negative emissions technology if coupled with CO2 storage and is a viable option as a CO2 source for producing truly carbon-neutral synthetic fuels. However, if this ...
The heterogeneous nature of microplastics and the subsequent impacts on reported microplastic concentrations
(Lappeenranta-Lahti University of Technology LUT, 2021-12-10)
During past decades, the awareness of plastic pollution has increased drastically, and small plastic particles, namely microplastics (MPs), have been found in the environment all over the world. However, microplastic ...