En övergiven spannmålssilo i Vadstena från 1956 är placerad med en spännande kontext mitt i staden intill ett väl bevarat renässansslott. Silon har varit på gång och bli bostäder men projektet avstannade och silon står idag oanvänd. I mitt projekt har jag fokuserat på att hitta ett nytt användningsområde för silon genom intervjuer, research och dokumentation av området. Förslaget innefattar att silon blir en lokal konstscen för icke etablerade konstnärer och kreativa personer i bygden där man kan ha kurser och skapande verksamhet i en spännande miljö. Själva silodelen blir konsthall med ett spännande dagsljusinsläpp och blir en skulptur i sig. Området omkring silon får även det ett nytt förslag på åtgärder för att bidra till en hållbar utveckling för kommunen enligt vad deras egna visioner i detaljplanen säger. / A silo building in Vadstena in south of Sweden from 1956 is abandoned and no longer in use. The context of the building is quite interesting since it is placed in the middle of the town next to one of Swedens most well preserved renaissance castles and the harbor. My project is about this silo, how to find a new program and function for it. And also look att the surroundings how the municipality should try to change some parts of the city plan to better fit their own visions and strive for a more sustainable development. My suggestion for the new program is an art hall with a creative studio part that could be available for everyone in the area. It would provide a space that seems missing and that would be appreciated by many non established artists in the area that have no where to meet, work and have exhibitions. That would also be a sustainable way of taking care of an building that is no longer in use.

Gasverket used to be a very important part of the city’s industrial and infrastructural history. Now it is under development just like other several old industrial areas in the city center while new industries are constantly pushed outside the city center limits.  Looking at Gasverket’s (The Gas Factory) history and importance for the city of Stockholm, this thesis questions how we can integrate abandoned infrastructures back into the urban texture while protecting not only the built structure but also the infrastructural character of the area and challenging the definition of what infrastructure can and should be in the 21st century. Inspired by the social working ideologies of churches and/or mosques as places for charity and community, Gasverket aims to create a secular people’s place that redefines the concept of charity by offering job opportunities and educational help to groups of people who are not always included in the labor market. The project contributes to creating inclusive economic growth and equal work opportunities to create sustainable societies. In doing so, it brings back the production of construction materials in the city by reusing several household wastes and creates spaces to strengthen the bonds between individuals and the community.The strategy for dealing with what is left after the old gas work activities is to bring back the dirtiness of the production industry in the city center while integrating it with the current social and economic situations to create a sustainable infrastructural model. As the title suggests, with this project the area will become a place for the “rebirth” of an individual’s role in society, a space for the rebirth of waste materials, a place for a metaphorical rebirth after death, and finally the rebirth of Gasverket.

Water supply reservoirs are often subject to accelerated nutrient enrichment from urban sources. Cultural eutrophication due to such enrichment requires the development of efficient management and remediation strategies to protect drinking water sources. This study investigates the effects of using nitrate as part of a management strategy to control nutrient cycling in the Occoquan Reservoir in northern Virginia, USA. A novel aspect of the study is that the reservoir is part of an indirect potable reuse system where the source of nitrate is the product water from an advanced water reclamation facility (WRF). Field and laboratory studies showed that nitrate at a concentration greater than 1 mg/L N was effective in controlling the release of phosphorus, iron, and manganese from the sediments after the depletion of oxygen from the hypolimnetic waters of the reservoir. However, when the nitrate concentration above the sediment-water interface was less than 1 mg/L N, phosphorus, iron, and manganese release from the sediments was evident. Experiments revealed that the presence of nitrate decreased sediment ammonium release, but did not completely prevent it during anoxic periods. Results also showed that changes in the effective depth (ED) value along the length of the reservoir promoted higher denitrification rates in the upper reaches of the reservoir, thereby decreasing the downstream transport of nitrate. During periods of hypolimnetic anoxia, a nitrate-N input from the WRF of at least 10 mg/L N is needed to maintain an oxidized environment above the sediment-water interface. Therefore, decreasing the nitrate input to the reservoir will likely result in the deterioration of the surface water quality in the reservoir. Finally, the ED concept was proven to be an effective method to simulate different segments of the reservoir in laboratory-scaled experiments. Similarities between the field and laboratory results suggests that the environment that existed in the waters of the reservoir was closely replicated in the experimental setup, and provides confidence that laboratory results can be extrapolated to natural reservoir conditions. / Ph. D.

Born-sustainable textile reuse businesses conduct textile waste management tasks in accordance with sustainable standards. Innovation and collaboration are the core values around which these businesses have operated since inception. As there are not enough regulated channels to manage textile waste across many parts of the globe, they remain in warehouses for a long time before being discarded into landfills or incinerators. Re-using this waste globally will significantly reduce the environmental impacts of manufacturing new fabrics. However, these born-sustainable businesses frequently have difficulties managing their operations with limited resources and hence it would be challenging for them to expand their business globally. As there is a scarcity of research on born-sustainable businesses and their internationalization, the present study aims to fill this gap through a qualitative study by interviewing multiple textile reuse businesses and one of the case company business stakeholders. The analysis demonstrates that textile reuse businesses that are born sustainable are also born digital and internationalized more quickly than traditional businesses, due to innovation and digital business opportunities. Additionally, characteristics of born sustainable businesses and internationalization coexist with each other as these businesses are also Born Global. Since the textile sector is a global business, these businesses have networking opportunities and had to deal with difficulties in the institutional void from the inception.

Both today and in centuries past, it is a reality of building that not every project is destined for success. Financial issues or unrealistic timetables can complicate a building’s construction but, while usually the final result eventually meets the initial expectations, other times the worst-case scenario of a building being abandoned during construction becomes a ruin. The project focuses on unfinished Haga castle and its future.

This project explores strategies to effectively address the challenges surrounding the ‘dissonant’ heritage of totalitarian regimes. The difficulties associated with this heritage rises from multiple factors, such as the characteristics of materials and objects involved, historical and cultural contexts, political influences, ethical considerations, religious aspects, and personal beliefs of individuals involved. These differences give rise to conflicts and obstacles in preserving and managing such heritage. The main point of disagreement is whether undesired and painful objects and sites should be demolished or if they are to be preserved, how they should be appropriately presented. Therefore, it is essential to adopt a balanced approach that respects diverse perspectives, fosters dialogue, and embraces adaptive strategies. This approach is crucial for ensuring the long-term viability and meaningful interpretation of our shared collective heritage. The case study chosen is Lithuania, a former part of the Soviet Union. Most built heritage from the Soviet era may not be traditionally seen as culturally significant, but it does bear witness to collective memory. The goal is to analyze and propose an adaptive reuse project for a partially abandoned building, the former Taxi Park in Vilnius. To address historical memory, the proposal suggests a programic shift from a Taxi Park to a Film Park. This approach showcases artifacts from the Lithuanian film industry and transforms the space into an archival institution that engages with history. The building is organized in a chronological framework, with different floors that create a cohesive narrative that honors the past, preserves the present, and allows for future engagement. By incorporating these elements, the space serves educational, cultural, and future-oriented purposes.

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Yes / Steel is a highly versatile and 100% recyclable material but is also carbon and energy intensive in production. Steel framed structures are inherently adaptable and potentially demountable. Reuse instead of the common practice of recycling steel by melting, makes good environmental sense, saving both on resources and carbon emissions. Reuse is commercially and technically viable, as demonstrated by isolated projects. Although steel reuse has been identified as an effective method to reduce the carbon and energy impact of construction, it is in effect only marginally used in practice. We found that although there is a sufficient spread between the price of steel scrap and new steel, this difference cannot be captured by the demolition contractors. In steel multi-storey high-rise building structures, composite construction is the most efficient and economic forms of construction. Composite beams incorporate composite floors with profiled steel sheeting are the most common structural system used in multi-storey high-rise buildings and is seen as one of the most important ways of expanding the use of steel buildings in Europe, i.e. increasing market share. However, in terms of reuse, current composite construction systems require extensive cutting on-site during the demolition process making reuse not viable. This paper presents an innovative composite system that is designed for deconstruction and reuse, its structural behaviour and failure modes were observed and analysed through a series of experimental studies and numerical simulation. The results showed that the structural behaviour of this new form of composite system not only allows for deconstruction and reuse, it has a similar structural performance to the traditional composite system with welded shear connectors.

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