A5049957584- Membrane Separation Technologies
- Electrohydrodynamics and Fluid Dynamics
- Membrane-based Ion Separation Techniques
- Advanced Cellulose Research Studies
- Recycling and Waste Management Techniques
- Extraction and Separation Processes
- Mineral Processing and Grinding
- Chemistry and Chemical Engineering
- Electrospun Nanofibers in Biomedical Applications
- Electrostatics and Colloid Interactions
- Catalysis and Hydrodesulfurization Studies
- Sustainable Supply Chain Management
- Surfactants and Colloidal Systems
- Sustainable Industrial Ecology
- Nanomaterials for catalytic reactions
- Lignin and Wood Chemistry
- Photochemistry and Electron Transfer Studies
- Environmental Sustainability in Business
- Design Education and Practice
- Concrete Corrosion and Durability
- Nanopore and Nanochannel Transport Studies
- Recycling and utilization of industrial and municipal waste in materials production
- Thermochemical Biomass Conversion Processes
- Ultrasound and Cavitation Phenomena
- Spectroscopy and Chemometric Analyses
Lappeenranta-Lahti University of Technology
2000-2022
University of Helsinki
1988
Alkali-activated binders have been considered a low carbon alternative to cement and are produced by reacting aluminosilicate precursor with an alkali-activator. However, alkali-activators observed be major contributor the environmental burdens of alkali-activated materials regarding various impact categories. Therefore, this study aims perform assessment using life cycle methodology on mortars from chemically modified one- two-part waste-derived activators (waste glass rice husk ash) in...
Life cycle assessment (LCA) methodology was applied to assess five locally developed mix designs for a 20 m low-height noise barrier (LHNB) categorized as: precast Portland cement concrete (S0-baseline scenario), two geopolymer composites (S1; S2), and additive-manufactured (S3; S4). The objective of the study is carry out LCA designs, identify environmental hotspots evaluate influence durability service life on results. Environmental impact categories assessed are global warming potential...
In this study, we explore the drivers of and barriers to environmental innovation for new entrants incumbents in cement industry. The industry produces large amounts carbon dioxide (CO2) emissions every year, therefore, implementing innovations is important. study was conducted as a multiple-case seven companies; four are entrants, three We found that implement process innovations, these firms driven by cost-efficiency incentives serve price-sensitive customers prioritize standard products...
In this study, membrane filtration as an internal purification method, "the kidney", in the pulp and paper industry is discussed. Membrane economically competitive a very versatile process. It can be used to remove enriched organic and/or inorganic loads either partially or totally from, for example, mechanical pulping making water circuits it applied various points within With so-called shear enhanced modules high fluxes, ultrafiltration about 400 L/(m2h) nanofiltration fluxes almost 200...
Abstract The hydrophilicity of regenerated cellulose (RC) ultrafiltration (UF) membranes could be utilized in industrial processes even more than today if there was information on their thermal stability. Therefore, this study two different RC UF were used a temperature range from 15 to 70°C order evaluate performance stability at high temperature. experiments performed neutral, alkaline, and acidic conditions. influence pure water permeability, observed Dextran retention, membrane structure...
In this study membrane filtration, ultrafiltration, and nanofiltration alone as part of hybrid processes are considered means to purify pulp paper mill process waters suitable for reuse. Thermophilic aerobic biological treatment, pH adjustment, flocculation, ozonation were tested pretreatment methods on pilot or laboratory scale. The aim was increase flux reduce fouling by various steps and, thus, the competitiveness process. results also evaluated comparing benefits obtained against costs....
The integration of circular economy-based life cycle management (LCM) into product design and optimisation is essential for the transformation towards a economy (CE). However, companies often lack expertise to adapt life-cycle (LCD) thinking in their business operations are need respective capacity building. To close this apparent gap aim project e-CirP (Embedding Circular Economy Product Design Optimization) where LUT University, Fraunhofer, Technical University Denmark, Padova, Delft...
Abstract In this study a combined anaerobic biological-nanofiltration method was studied as means of internal purification thermomechanical pulp (TMP) plant effluent. A TMP clear filtrate first subjected to thermophilic treatment at 55 or 70°C in an up flow sludge blanket reactor and then nanofiltered flat-sheet laboratory-scale module. The removed 55% the chemical oxygen demand 65% 55°C. Sugars were both while low molar mass ligneous material only By nanofiltration remaining by about 98–99%...
Abstract Superactive carbon (SAC), having a high surface area of over 2500 m 2 /g, could be superior choice for many applications. However, the manufacture SAC in bulk quantities is challenging. To demonstrate possibility manufacturing large amounts, techno‐economic assessment was performed. For that purpose, new method utilizing mixture waste lignin, KOH and KCl employed. The chemicals were recovered after use. technical performed based on laboratory‐scale experimental findings, simplified...