This page has only limited features, please log in for full access.

Unclaimed
B.-M. Steenari
Department of Chemistry and Chemical Engineering, Energy and Materials, Chalmers University of Technology, 41296 Gothenburg, Sweden

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 24 March 2020 in Sustainability
Reads 0
Downloads 0

Despite the significant reduction of phosphorus (P) discharge in the Baltic Sea in the last decades, obtained through the implementation of some approaches within the Helsinki Convention, eutrophication is still considered the biggest problem for the Baltic Sea environment. Consequently, the reduction of P load is an urgent need to solve, but the complexity of both the environmental and legislative context of the area makes this process difficult (more than in the past). Eutrophication is an intricate issue requiring a proper framework of governance that is not easy to determine in the Baltic Sea Region where the needs of several different countries converge. To identify the most suitable strategy to reduce the eutrophication in the Baltic Sea, the InPhos project (no. 17022, 2018–2019, funded by the European Institute of Innovation & Technology (EIT) Raw Materials) adopted a holistic approach considering technical, political, economic, environmental and social aspects of P management. With the aims to raise awareness about the P challenge, foster the dialogue among all the stakeholders, and find solutions already developed in other countries (such as Germany and Switzerland) to be transferred in the Baltic Sea Region, the InPhos project consortium applied the methodology proposed in this paper, consisting of three main phases: (i) analysis of the available technologies to remove P from waste streams that contribute to eutrophication; (ii) analysis of the main streams involving P in Baltic Sea countries to highlight the potential of more sustainable and circular P management; (iii) study of the current context (e.g., already-existing initiatives and issues). This approach allowed us to identify four categories of recommendations and practical actions proposed to improve P management in the Baltic Sea region. During the project, the consortium mainly addressed social aspects. Following steps beyond the project will be more quantitative to determine the techno-economic feasibility of circular P management in selected demo cases in the region.

ACS Style

Marzena Smol; Michał Preisner; Augusto Bianchini; Jessica Rossi; Ludwig Hermann; Tanja Schaaf; Jolita Kruopienė; Kastytis Pamakštys; Maris Klavins; Ruta Ozola-Davidane; Daina Kalnina; Elina Strade; Viktoria Voronova; Karin Pachel; Xiaosheng Yang; Britt-Marie Steenari; Magdalena Svanström. Strategies for Sustainable and Circular Management of Phosphorus in the Baltic Sea Region: The Holistic Approach of the InPhos Project. Sustainability 2020, 12, 2567 .

AMA Style

Marzena Smol, Michał Preisner, Augusto Bianchini, Jessica Rossi, Ludwig Hermann, Tanja Schaaf, Jolita Kruopienė, Kastytis Pamakštys, Maris Klavins, Ruta Ozola-Davidane, Daina Kalnina, Elina Strade, Viktoria Voronova, Karin Pachel, Xiaosheng Yang, Britt-Marie Steenari, Magdalena Svanström. Strategies for Sustainable and Circular Management of Phosphorus in the Baltic Sea Region: The Holistic Approach of the InPhos Project. Sustainability. 2020; 12 (6):2567.

Chicago/Turabian Style

Marzena Smol; Michał Preisner; Augusto Bianchini; Jessica Rossi; Ludwig Hermann; Tanja Schaaf; Jolita Kruopienė; Kastytis Pamakštys; Maris Klavins; Ruta Ozola-Davidane; Daina Kalnina; Elina Strade; Viktoria Voronova; Karin Pachel; Xiaosheng Yang; Britt-Marie Steenari; Magdalena Svanström. 2020. "Strategies for Sustainable and Circular Management of Phosphorus in the Baltic Sea Region: The Holistic Approach of the InPhos Project." Sustainability 12, no. 6: 2567.

Journal article
Published: 22 February 2020 in Journal of Hazardous Materials
Reads 0
Downloads 0

In several industrial Lithium-ion batteries recycling processes, a thermal treatment with oxidative atmosphere is used to separate the battery components and to remove the organic components. This method is often combined with hydrometallurgical processes with the aim to increase the metal recovery rate or to improve the efficiency of the existing processes. Despite such efforts, the effects of a thermal treatment in an oxidative atmosphere on the microstructure and composition on cathode and anode materials has not been explored. In this manuscript, spent batteries which cathode active material has the composition Li(NixMnyCoz)Oz, i.e. NMC-LiBs, were subjected to thermal treatment at 400˚, 500˚, 600˚, and 700 °C for 30, 60, and 90 min. The microstructure and the composition were studied using XRD and ICP-OES. Thermodynamic calculations were performed to forecast the trend of the carbothermic reduction of active materials. It was observed the formation of gas and organic oil by-products from the decomposition of the polypropylene separator and the polyvinylidene fluoride binder. The identification of the composition of these by-products has great importance since they have a corrosive and toxic behavior. It was observed the fluorine behavior during the thermal treatment and its presence in the oil by-products.

ACS Style

Gabriele Lombardo; Burçak Ebin; Mark R. St. J. Foreman; Britt-Marie Steenari; Martina Petranikova. Incineration of EV Lithium-ion batteries as a pretreatment for recycling – Determination of the potential formation of hazardous by-products and effects on metal compounds. Journal of Hazardous Materials 2020, 393, 122372 .

AMA Style

Gabriele Lombardo, Burçak Ebin, Mark R. St. J. Foreman, Britt-Marie Steenari, Martina Petranikova. Incineration of EV Lithium-ion batteries as a pretreatment for recycling – Determination of the potential formation of hazardous by-products and effects on metal compounds. Journal of Hazardous Materials. 2020; 393 ():122372.

Chicago/Turabian Style

Gabriele Lombardo; Burçak Ebin; Mark R. St. J. Foreman; Britt-Marie Steenari; Martina Petranikova. 2020. "Incineration of EV Lithium-ion batteries as a pretreatment for recycling – Determination of the potential formation of hazardous by-products and effects on metal compounds." Journal of Hazardous Materials 393, no. : 122372.

Journal article
Published: 16 April 2019 in Materials
Reads 0
Downloads 0

This paper proposes a new method for producing nano-SrFe12O19 powder by the citrate precursor route using solid waste as a source of iron. This solid iron-containing waste, which exists in the form of an oily sludge, is produced by a cold rolling mill. This sludge was first subjected to a process, including sulfuric acid leaching, oxidation, precipitation, and nitric acid leaching, to obtain an iron nitrate (Fe(NO3)3) solution. Next, the Fe(NO3)3 solution was mixed with a strontium nitrate (Sr(NO3)2) solution obtained by subjecting strontium carbonate to nitric acid leaching. Subsequently, citric acid, as chelating agent, and ammonia water, as precipitating agent, were added to the mixed solution to form a gel. The gel was dried and spontaneously combusted, then annealed at different temperatures for 2 h in flowing air. The effects of the Fe3+/Sr2+ molar ratio and annealing temperature on the formation, morphology, and magnetic properties of SrFe12O19 were investigated. The results showed that single-phase SrFe12O19 powder was obtained by decreasing the Fe3+/Sr2+ molar ratio from the stoichiometric value of 12 to 11.6 and increasing the annealing temperature to 1000 °C for 2 h. Adjustment of the Fe/Sr molar ratio to 12 and the annealing temperature to 900 °C enabled the magnetic properties to be optimized, including saturation magnetization (Ms) 80.2 emu/g, remanence magnetization (Mr) 39.8 emu/g, and coercive force (Hc) 6318 Oe.

ACS Style

Bo Liu; Shengen Zhang; Britt-Marie Steenari; Christian Ekberg. Controlling the Composition and Magnetic Properties of Nano-SrFe12O19 Powder Synthesized from Oily Cold Mill Sludge by the Citrate Precursor Method. Materials 2019, 12, 1250 .

AMA Style

Bo Liu, Shengen Zhang, Britt-Marie Steenari, Christian Ekberg. Controlling the Composition and Magnetic Properties of Nano-SrFe12O19 Powder Synthesized from Oily Cold Mill Sludge by the Citrate Precursor Method. Materials. 2019; 12 (8):1250.

Chicago/Turabian Style

Bo Liu; Shengen Zhang; Britt-Marie Steenari; Christian Ekberg. 2019. "Controlling the Composition and Magnetic Properties of Nano-SrFe12O19 Powder Synthesized from Oily Cold Mill Sludge by the Citrate Precursor Method." Materials 12, no. 8: 1250.

Journal article
Published: 13 September 2018 in Metals
Reads 0
Downloads 0

Over the last decade, rare-earth elements (REEs) have become critical in the European Union (EU) in terms of supply risk, and they remain critical to this day. End-of-life electronic scrap (e-scrap) recycling can provide a partial solution to the supply of REEs in the EU. One such product is end-of-life neodymium (NdFeB) magnets, which can be a feasible source of Nd, Dy, and Pr. REEs are normally leached out of NdFeB magnet waste using strong mineral acids, which can have an adverse impact on the environment in case of accidental release. Organic acids can be a solution to this problem due to easier handling, degradability, and less poisonous gas evolution during leaching. However, the literature on leaching NdFeB magnets waste with organic acids is very scarce and poorly investigated. This paper investigates the recovery of Nd, Pr, and Dy from NdFeB magnets waste powder using leaching and solvent extraction. The goal was to determine potential selectivity between the recovery of REEs and other impurities in the material. Citric acid and acetic acid were used as leaching agents, while di-(2-ethylhexyl) phosphoric acid (D2EHPA) was used for preliminary solvent extraction tests. The highest leaching efficiencies were achieved with 1 mol/L citric acid (where almost 100% of the REEs were leached after 24 h) and 1 mol/L acetic acid (where >95% of the REEs were leached). Fe and Co—two major impurities—were co-leached into the solution, and no leaching selectivity was achieved between the impurities and the REEs. The solvent extraction experiments with D2EHPA in Solvent 70 on 1 mol/L leachates of both acetic acid and citric acid showed much higher affinity for Nd than Fe, with better extraction properties observed in acetic acid leachate. The results showed that acetic acid and citric acid are feasible for the recovery of REEs out of NdFeB waste under certain conditions.

ACS Style

Marino Gergoric; Christophe Ravaux; Britt-Marie Steenari; Fredrik Espegren; Teodora Retegan. Leaching and Recovery of Rare-Earth Elements from Neodymium Magnet Waste Using Organic Acids. Metals 2018, 8, 721 .

AMA Style

Marino Gergoric, Christophe Ravaux, Britt-Marie Steenari, Fredrik Espegren, Teodora Retegan. Leaching and Recovery of Rare-Earth Elements from Neodymium Magnet Waste Using Organic Acids. Metals. 2018; 8 (9):721.

Chicago/Turabian Style

Marino Gergoric; Christophe Ravaux; Britt-Marie Steenari; Fredrik Espegren; Teodora Retegan. 2018. "Leaching and Recovery of Rare-Earth Elements from Neodymium Magnet Waste Using Organic Acids." Metals 8, no. 9: 721.

Journal article
Published: 31 August 2010 in Fuel
Reads 0
Downloads 0

The combustion of forest residues and other biomass is often hampered by ash sintering, fouling and corrosion caused by potassium salts. Kaolin has been shown to be an efficient absorbent for different species of potassium. This investigation was carried out with the aim to clarify if the leaching of Al or metals bound in aluminium silicate forms is an obstacle to the utilisation of kaolin as fuel additive and if the resulting ash would react differently with water than a normal wood ash. It was shown that kaolin addition decreases the leaching of K at high pH values, but leaching of Al and all trace elements was generally low at all pH (4, 7 and 13) used. Addition of kaolin during the combustion reduced the initial setting time of ash–water mixtures and the presence of kaolin also stabilised the ash structure. From theses results it can be concluded that kaolin addition seems to be a good way to decrease ash related problems during combustion, without deteriorating the properties of the resulting ash or preventing the use of the ash as mineral nutrient in forestry.

ACS Style

B.-M. Steenari; K. Karlfeldt Fedje. Addition of kaolin as potassium sorbent in the combustion of wood fuel – Effects on fly ash properties. Fuel 2010, 89, 2026 -2032.

AMA Style

B.-M. Steenari, K. Karlfeldt Fedje. Addition of kaolin as potassium sorbent in the combustion of wood fuel – Effects on fly ash properties. Fuel. 2010; 89 (8):2026-2032.

Chicago/Turabian Style

B.-M. Steenari; K. Karlfeldt Fedje. 2010. "Addition of kaolin as potassium sorbent in the combustion of wood fuel – Effects on fly ash properties." Fuel 89, no. 8: 2026-2032.

Journal article
Published: 31 December 2007 in Waste Management
Reads 0
Downloads 0

Fly ash from combustion of municipal solid waste sometimes contains large amounts of soluble salts, such as NaCl, even though the content of soluble toxic metal compounds is relatively low. Removal of the salts by washing with water has been suggested as a method to increase the stability of this type of ash. In the work presented here, a simple washing process was studied and evaluated. The process includes three steps: leaching with water, filtration and displacement washing. Basic data were obtained in laboratory experiments and used in the construction of pilot plant equipment at a full size fluidized bed boiler, where a side-stream of the cyclone ash was treated. The process was designed to minimize the water consumption while obtaining an effective removal of salts and a stable ash residue. In order to achieve this, recirculation of leaching liquor was used and the displacement washing was adjusted to become close to ideal. The results showed that an ash/water slurry with a liquid to solid ratio as low as 3 could be handled without difficulty in the mixing, pumping and filtration units. Washing of the filter cake at a liquid to solid ratio of 0.5 removed the major part of the remaining dissolved salts in the pore liquid. About 90% of the chloride content was removed from the ash, whereas the contents of Na, K, Ca, Cd, Pb and a number of other minor elements were removed by 10–30%. Before treatment, the results of ash leaching tests were sometimes too high for chloride (2003/33/EC), but the treatment reduced the amount of soluble chlorides to far below the limit values. The leachability of most metals was reduced or unaffected by the ash treatment. For Na, K and Cl, it was less than 10% of the value for the untreated ash. However, the results showed that some ash components may be mobilized by the washing. Antimony is the most important due to its toxicity.

ACS Style

M. Wilewska-Bien; M. Lundberg; B.-M. Steenari; H. Theliander. Treatment process for MSW combustion fly ash laboratory and pilot plant experiments. Waste Management 2007, 27, 1213 -1224.

AMA Style

M. Wilewska-Bien, M. Lundberg, B.-M. Steenari, H. Theliander. Treatment process for MSW combustion fly ash laboratory and pilot plant experiments. Waste Management. 2007; 27 (9):1213-1224.

Chicago/Turabian Style

M. Wilewska-Bien; M. Lundberg; B.-M. Steenari; H. Theliander. 2007. "Treatment process for MSW combustion fly ash laboratory and pilot plant experiments." Waste Management 27, no. 9: 1213-1224.

Journal article
Published: 31 August 2007 in Fuel
Reads 0
Downloads 0

In this work, the methodology for quantification of water-soluble species in ash was evaluated by varying the parameters leaching time, liquid-to-solid ratio, and size reduction by grinding. The basis for the methodology is a modification of Tessier’s sequential extraction method. This work concentrated on fly ashes from combustion of MSW in a fluidised bed boiler, and generally the amounts of water-soluble forms of metals in the ashes were low. Longer leaching time generally reduced the amount of water-soluble metal detected, showing the importance of adsorption and re-precipitation processes. The effects of the L/S parameter and of grinding seem to be dependent on the characteristics of the ash matrix.

ACS Style

K. Karlfeldt; B.-M. Steenari. Assessment of metal mobility in MSW incineration ashes using water as the reagent. Fuel 2007, 86, 1983 -1993.

AMA Style

K. Karlfeldt, B.-M. Steenari. Assessment of metal mobility in MSW incineration ashes using water as the reagent. Fuel. 2007; 86 (12-13):1983-1993.

Chicago/Turabian Style

K. Karlfeldt; B.-M. Steenari. 2007. "Assessment of metal mobility in MSW incineration ashes using water as the reagent." Fuel 86, no. 12-13: 1983-1993.