"We know how to process industrial ash and how to export the know-how into large-scale industry. Chemically modified waste ash can be binder, building material or other raw material for other industries."
PROJECTS OVERVIEW
2012–2015
TUULI Project (Sustainable Utilization of Ash, Slag and Pyrolysis Residuals)
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In this Business Finland supported project, we investigated how the properties of ash and slag can be changed through combustion conditions and mechanical and chemical processing. The utilization of processed fractions was extensively studied, especially in applications requiring solidification.
The project sought a holistic understanding of the composition and behavior of ash and other thermal by-products. The aim was to reduce the amount of ash and slag to be landfilled, to reduce the use of virgin raw materials, to develop new methods of ash treatment and to strengthen the international competitiveness of the participants. |
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2014–2017
R3Water
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Innovative solutions for urban wastewater treatment: Reuse of water - Recovery of valuables - Resource efficiency
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2014
Chemical and Mineralogical Composition of Ashes
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The purpose was to determine the chemical and mineralogical composition of ashes. In addition, the microstructure of ashes was examined using a scanning electron microscope (SEM).
FA Forest / Ecolan Oy
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Clay Stabilization
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The suitability of ashes in clay stabilization.
Keravan Energia Oy
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2015–2019
REslag - EU Horizon 2020 Project
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Project objective: to valorise the steel slags that are currently landfilled and reuse this waste as a resource for 4 innovative applications that contribute to a circular economy in the steel sector and also count with a cross-sectorial approach, focusing on energy intensive industries (ceramic, glass, cement, metallurgy, etc.).
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2015
Dolomitic Lime Analysis
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Transformation of bio- or waste-derived power plant ash into land improvement or fertilizer feedstock.
Bet-Ker Oy
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Ash Additives
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Additive supplementation of power plant ash.
Etelä-Savon Energia Oy
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Kiln Ash Briquetting Process
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Optimization of Paroc Oy's briquetting process by assessing the chemical and physical properties of sidestreams.
Paroc Oy
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Paint Sludge as Concrete Additive
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We estimated the suitability of paint waste sludge as cement or concrete admixture. The method used was semi-adiabatic calorimetry.
FP Pigments
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2016
Ash Quality Control System
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The utilization possibilities of Naantali multi-fuel power plant ash. We investigated potential ash applications and the required ash quantities in the region of Southwest Finland. The aim was to create an ash quality control system for the Naantali multi-fuel power plant, and to ensure the reuse of ash generated.
Thesis - Turku University of Applied Sciences
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PCC as Concrete Additive
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The effect of precipitated microcrystalline calcite (PCC) on the hardening of cement and slag. The effect of PCC on the heat generation and strength development of cement. A preliminary study of PCC as a cement additive.
FP Pigments
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Ash Refinement
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Assessment of utilization potential of ashes generated. Refinement of ashes with additives. Development of a quality control system for ashes produced, which is used to ensure the ash suitability in various applications.
UUMA2
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Ash Reactivity
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We investigated which factors, in addition to the Ca content, affect the hardening properties of ashes. We assessed ash reactivity using SEM and XRD.
INKA Programme
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Refining Desulphurization End Product
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Processing desulphurization end product into a binder.
We optimized the desulphurization end product as an admixture with different ashes, and examined the possibilities of refining a binder from dust incineration ash mixture. We also explored the high-lime ash possibilities. We utilized previous research and new experiments to find out, what conditions the desulphurization end product fraction needs to meet, in order to act as a binder or part of a binder, so that it is fully suitable to work directly, for example, in various civil engineering applications. Helen Ltd
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Peat Ash in Alternative Binder Development
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The goal of the research was to develop a binder substitute for cement by combining and modifying waste fractions from different industries.
The fractions were activated either by mechanical grinding or chemical modification. The composition of different types of ashes and their differences in binder use were also analyzed. Ramboll Finland Oy
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Fly Ash as Cement Replacing Binder
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The influence of lime waste on green liquor dreg paste strength.
Ramboll Finland Oy
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Fine Slags as Concrete Filler
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Assessing the utilization potential of Suomen Erityisjäte Oy bottom ash. Our basic research showed that it can act as a cement additive and as sand substitute in soil stabilization.
w/Ecolan Oy for Suomen Erityisjäte Oy
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Utilization Potential of Hylte Ash
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Assessing binder possibilities of Hylte ash. The focus was on infrastructure applications, but potential as fertilizer raw material were also estimated.
Characterization of the ash fractions - determining chemical and mineralogical compositions. Determining parameters used in applications utilizing the cementitious properties of high calcium ashes. Preparing different cementitious masses based on the ash. The resulting strength and calorimetric data were observed, and conclusions of optimized recipes formulated. Stora Enso Sverige
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Lime Additive Supplementation
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We modeled a power plant ash treatment for two different lime levels.
Jyväskylän Energia Oy
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Soy Hull Milling Project
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For bio material research.
Nordic Soya Oy
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Furnace Ash as Binder
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Investigating the possibilities of utilizing dust generated at Paroc Oy's production plants as a binder component. The aim of the study was to find a mixture with strength development sufficient enough to replace cement in the briquetting process.
Paroc Oy
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Foam Concrete Recipe Optimization
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We examined the foam concrete production suitability of fluidized ashes from two power plants. The properties e.g. ash composition and reactivity, as well as binder properties, plus the effect of likely foaming chemicals on cement reactions was researched.
Jyväskylän Energia Oy
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2017
XRD and TGA Ash Analyses
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As part of Baltic TRAM.
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Base Layer Slags Research
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Binder development.
Suomen Erityisjäte Oy
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Chromium in Combustion
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A literature study related to the formation of soluble hexavalent chromium. The aim of this study was to evaluate Vermo combustion process with respect to chromium (VI) formation and to suggest possible modification routes based on literature.
Fortum
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Utilization of Limestone Fines
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Two sludge samples were tested for carbonate and calcite status. FTIR analysis was used to find peaks corresponding to carbonates. In addition, the samples were kept in desiccators to see if there was a drastic change. The samples were then calcined and quantified.
Fortum / Ekokem
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2017–2018
Renotech LWA - Lightweight Aggregate
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A Turku University of Applied Sciences project for Renotech Oy. The purpose was to research a lightweight aggregate developed by Renotech Oy, determine its properties, research its marketing possibilities.
The aggregate’s ability to purify and neutralize surface water and soil was tested. The research was done using a flow-through spectrophotometer, MP-AES and an automatic burette. The samples were analyzed for total phosphorous, iron, copper, zinc and for their buffer capacity. The results showed that the light weight aggregate product has more effective adsorption and neutralizing qualities, when compared to natural rock, especially for total phosphorous. Turku University of Applied Sciences Capstone innovation project for Renotech Oy
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2018
Minefill Experiments
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Developing and analyzing minefill recipes for Kittilä Mine using ashes from various industrial sources.
Ecolan / Kittilä Mine
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Fly-Ash Foamed Concrete Pilot Experiment
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Suitability of different ashes, and the suitability of Aercrete pump in LWA production was tested in a week long pilot experiment.
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Chemical Form of Ca and Mg Compounds
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The chemistry of Hässleholm ash samples was studied using calorimetry, TGA and FTIR.
Paroc Group Oy
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Briquetting Potential of Anorthosite Reject
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Assessing the briquetting properties of anorthosite and binder properties of Petrit slags.
Paroc Group Oy
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Development of RenoFill
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Utilization of limestone fines.
Renotech Oy
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REslag Pilot
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An industrial scale trial. Six 5 m³ refractory concrete slabs were manufactured and installed under Paroc smelting furnace.
REslag - EU H2020
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2019
Material Structure Analysis
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We examined the layers of a wall sample in order to determine the reason for it's fragility. The sample was chipped and its layers were removed with a hacksaw. The samples were crushed in a mortar and evaluated visually. The material from the different layers was collected in jars and analyzed separately. Thermogravimetry was performed on a Leco TGA-601 instrument.
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Rietveld Analysis of Xenospheres
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We performed a Rietveld analysis of a sample of xenospheres using XRD. The diffractogram was analyzed with Bruker Topas 4.2. and composition of the sample was calculated.
Chementors Oy
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2020
Effect of Novel Binders on Cement Hydration
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We studied the effect of eight novel binders on cement/briquetting reaction. The reactions were monitored by semi-adiabatical calorimetry and the evolution of mechanical strength measured by uniaxial compression strength.
Paroc Oy
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Rilem R3 Method on Various Pozzolanas
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We studied the Rilem R3 method on various pozzolanas, namely: Fortum Slag (Sandblast- BM), KS, RS, Koverhar, Sappi, Helen LT, S3-700C, GGBS (Fin) and as a reference commercial Metakaolin.
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Calorific Value of Paint
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The paint sample was mixed for about 3 minutes, after which a subsample was taken in a foil pan.
The sampöe was dried in an oven at 105 °C for about 2 hours. The dry paint sample was ground in a mortar into ca. 1 mm granules. The calorific value was measured with a Digital Data Systems CP 500 Bomb Calorimeter. In order for the sample to burn properly in the calorimeter, similarly pulverized standard benzoic acid (Digital Data Systems certified calorimetric standard) with a calorific value of 26.4412 MJ/kg was added. About 0.45 g of the mixture was weighed into a calorimeter crucible. A 105 mm long 0.1 mm NiCr wire, to which an 80 mm cotton wire was tied, was used as the ignition wire. The bomb was filled with O2 gas at a pressure of 30 bar, and the calorific value was measured according to the program. GVK Oy
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2021
Projects in Progress
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Not yet revealed.
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"We have the know-how, if not within our own team, then in our network, as companies focus their expertise on improving their own products."
