Studien fokuserar på att identifiera utmaningar och lösningar för hantering av hyresgästernas avfallhos fastighetsägaren, Rikshem. Arbetet att identifiera och undersöka Rikshems utmaningar medavfallshantering på nationell nivå baserades på intervjuer med olika medarbetare i bolaget samtundersökning av kostnader och andra interna dokument. Tre utmaningar identifierades: felsortering,översopor samt nedskräpning och dumpning av grovavfall. Orsakerna och konsekvenserna till dessautmaningar sammanställdes. Intervjuerna med andra fastighetsägare bekräftades utmaningarna somåterkommande hos fastighetsägare i vissa av deras områden. I syfte att lösa dessa problem identifierades olika lösningar från intervjuerna och delades upp ipraktiska och strategiska lösningar med hjälp av tematisk analys. Lösningarna undersöktes senareutifrån Rikshem hållbarhetskompass. De strategiska lösningarna som att ta fram mål och vision samtsammanställa kostnader rekommenderades att utföras på bolagsnivå. De praktiska lösningarnainkluderar bland annat olika former av miljöhus, tekniska lösningar i form av TV-skärmar, sensoreroch kärlpress, alternativ för grovsoprum, personlig service och nudging. Dessa lösningar måstedäremot undersökas vidare då de utförs utifrån varje områdes enskilda förutsättningar och behov. / The study focuses on identifying challenges and solutions for managing tenants' waste living inRikshem’s houses. The work to identify and investigate Rikshem's challenges with waste managementat the national level was based on interviews with various employees in the company as well as anexamination of other internal documents. Three challenges were identified: incorrect sorting,overloaded waste containers and dumping of bulky waste. The causes and consequences of thesechallenges were compiled. The interviews with other property owners confirmed that these challengesrecur with other property owners. In order to solve these problems, different solutions from the interviews were identified and dividedinto practical and strategic solutions using thematic analysis. The solutions were later examined basedon Rikshem's sustainability compass. The strategic solutions such as developing goals and vision andcompiling costs were recommended to be carried out at a company level. The practical solutionsinclude various forms of environmental houses, technical solutions in the form of TV screens, sensorsand container-press, alternatives for bulky waste rooms, personal service and nudging. Thesesolutions, on the other hand, must be further investigated as they would be carried out on the basis ofeach area's individual conditions and needs.Keyword

<p>Biodegradation of untreated cotton, linen, and hemp textiles as three substrates – measured through biogas production – was studied to compare digestion yield and the ability of anaerobic sludge as inoculum to utilize the sugars in these textiles without pretreatment. Digestion of these textile substrates was carried out over a 26-day study, with daily sampling of biogas production, to measure biogas production rate and accumulation. The flasks were maintained at 37 °C and 150 RPM with a substrate to inoculum ratio (SIR) of 0.5 g sugars from substrate g-1 VSinoculum from anaerobic sludge. Biogas samples were analyzed through gas chromatography (GC) to determine general biogas composition produced by each textile. Biogas production was notable after the four-day mark; with first peaks occurring on day five (hemp, cellulose), day seven (cotton), and day nine (linen). Production of biogas in the control largely outperformed trials with no added substrate, but overall the methane fractions of the gas was lower than expected, indicating that pretreatment is likely necessary for more complete biodegradation of natural textiles. </p>

El presente articulo tiene como objetivo revisar producciones científicas vinculado con el manejo de residuos sólidos en gobiernos regionales, provinciales y de distritales; la metodología de tipo y diseño cuantitativo comprendió procesos exploratorios y descriptivos; el uso de métodos teóricos; y, como muestra se tomó 10 artículos confiables y originales lo cual fueron publicados entre los años 2016 y 2023. Para el análisis y procesamiento de datos se utilizó la técnica que corresponde a un análisis documental y como instrumento una matriz lógica. Los resultados de dicho artículo manifiestan que la mayoría de las investigaciones científicas están relacionados en la gestión, manejo y mitigación de los residuos sólidos municipales; con propuestas de modelos sistémicos innovadores, políticas públicas y tecnologías perdurables ; y con respecto a las conclusiones de mayor importancia quecomprenden una evaluación diagnóstica en la cual se concluye el escaso e insuficiente conocimiento sobre el mal manejo de los residuos sólidos municipales en cada gobierno local , asimismo, lo cual se conocen lineamientos teóricos prácticos para minimizar la contaminación del medio ambiente sobre el entorno de los gobiernos regionales, provinciales y distritales para garantizar la sostenibilidad ambiental, mejor calidad económica, y mejorcalidad de vida. / The objective of this article is to review scientific productions linked to solid waste management in regional, provincial and district governments; The quantitative type and design methodology included exploratory and descriptive processes; the use of theoretical methods; and, as a sample, 10 reliable and original articles were taken, which were published between the years 2016 and 2023. For the analysis and processing of data, the technique that corresponds to a documentary analysis and a logical matrix as an instrument was used. The results of said article show that the majority of scientific research is related to the management, handling and mitigation of municipal solid waste; with proposals for innovative systemic models, public policies and lasting technologies; and with respect to the most important conclusions that include a diagnostic evaluation in which the scarce and insufficient knowledge about the poor management of municipal solid waste in each local government is concluded, likewise, which theoretical and practical guidelines are known to minimize the environmental pollution on the surroundings of regional, provincial and district governments to guarantee environmental sustainability, better economic quality, and better quality of life.

Published Article / The waste management practices used at red-meat abattoirs in the Free State province for disposal of condemned products generated in abattoirs and the problems associated with the different waste disposal methods were investigated. Problems caused by various products generated at abattoirs. such as abattoir waste water, blood, stomach contents, manure, whole carcasses, fetuses and all products unsuitable for human consumption requiring disposal were identified. Recommended solutions took into account the most effective handling manner, causing minimum environmental pollution, reducing any health risks to communities, and converting condemned products into value-added by-products by changing certain waste management processes / strategies. The handling of waste, specifically of condemned products, at 78 red meat abattoirs was analysed.

Background: Swedish textile waste management ecosystem is recognized to be a multi-actor ecosystem as opposed to a single-actor scenario whereas actors tend to perform their activities single-handedly and in a fragmented manner. Participating actors, each play a significant role in handling and treating the textile waste but this fragmented system renders certain drawbacks. The main treatment of textile waste in Sweden is incineration which addresses environmental damages. This in particular is more worrying when textiles are used as a fuel. This highlights the necessity for the actors to perform in a network and expand their collaboration, thus move more efficiently towards development of a sustainable innovation and find an alternative for the current treatment of textile waste. Purpose: This study strives to investigate the challenges and at the same time opportunities of implementation of a collaborative business model for sustainable innovation. This has been achieved through taking benefits of value mapping tool and actor-mapping. The core values of actors have been identified which was continued by identification of their shared and conflicting values. Methodology: Pre-study was conducted in order to design and develop two mappings, “main actors mapping”, “actor’s activity mapping” which helped the authors and the interviewees to gain a better realization of the Swedish Textile Waste Management ecosystem through visualization. The process of data collection occurred through semi-structured interviews with Open-ended questions which resulted to rich detailed responses from the interviewees. Seven organizations as the representative of Swedish textile waste management ecosystem were reached and studied. The outcomes of the interview were analyzed by the aid of value mapping tool and led the authors to formulate the answer to the research question. Interview findings: Interview findings presents the outcome of the collected data in accordance with the purpose of the study and the answer to the proposed research question. Consequently, this chapter provides a description of the Activity classification in TWM eco-system in Sweden as an outcome of the pre-study, continued by expanding on the results of Actors mapping &amp; their activities in TW eco-system and Activity mapping in relation to actors’ interactions, which were achieved by the aid of value mapping tool. This chapter is concluded by providing actors perspectives regarding the formation and the suitability of a collaborative business model for sustainable innovation on the basis of mapped values within textile waste scenario in Sweden. Analysis&amp; Discussion: This study tends to present rich and comprehensive picture in a descriptive manner in regards with participating actors, their activities, collaboration and value-orientations within Swedish textile waste scenario and propose a solution to the identified short-comings of the system by investigating the potentials of a collaborative business model for sustainable innovation. The literature review confirm and support the interview findings and addresses the need for further dialogue and collaboration among actors while highlighting the need from moving from ego-centric business model to multi-actor business model. This chapter is concluded by the response to the research question.

More than half of the world’s population lives in urban areas and this figure is expected to increase. The worldwide trend is in the direction of urbanization. Building sustainable cities is one of the sustainable development goals (SDGs) initiated by United Nations Sustainable Development Solutions Network. In the anthropocene of human induced climate change, what makes a city sustainable? This paper takes Beijing as the case study, uses building smart infrastructures and lowering ecological footprints as the main thread, uses a mixed research method of questionnaires, interviews and site survey, and discusses four aspects -- transportation, waste management, green spaces and energy saving buildings -- from employees’ perspectives of how to a build a sustainable city. This paper also discusses the relations between smart infrastructure and the resilience of a city, and relations between lowering ecological footprints and a green city, and draws a conclusion that a resilient and green city is a sustainable city. We can build a sustainable Beijing only through vigorously developed public transportation, well managed waste, the development of diversified green spaces, and buildings that efficiently use natural resources as energy supplies.

In the waste management system of Peru, there is a lot to fix, change and improve from households areas. In this report is presented why and how necessary is the construction of landfills to have an appropriate place to dispose the waste of the collection .At the same time, the report shows how profitable can be from social, economic and ecologic way, with the investment of treatment plants that use biogas from the landfills to produce energy. Differents solutions – vehicle fuel production, electricity generation etc – are discussed in light of the different economy, geography and social situation in three selected cases.

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

published_or_final_version / Zoology / Doctoral / Doctor of Philosophy

In order to deal with the mounting issue of Municipal Solid Waste (MSW) in a way that is in line with sustainable development and Integrated Solid Waste Management (ISWM) a systems approach is necessary.This approach can practically be integrated into the MSW decision-making process through Life Cycle Thinking(LCT) and environmental systems analysis tools such as Life Cycle Assessment (LCA). This paper is written within the context of the RECO Baltic 21 Tech (RB21T) project which aims to improve waste management practices in 12 countries in the Baltic Sea Region. The main aim of this paper is to investigate the extent to which LCA is used as decision-support in MSW management in Sweden, Estonia and Lithuania. The use of LCA is examined on a national level as well as on a local or regional level based on relevant literature and a set of interviews conducted in each country. According to the results the use of LCA as decision-support in MSW management is very limited in Estonia and Lithuania whilst it is already a well-established tool in Sweden. Most of the LCA efforts in the Baltic States have been conducted in connection with foreign projects and investments,such as RB21T. Although an actual LCA might not always be applied in Sweden, LCT is prevalent in MSW management both on a national and local level. In order for LCA to be better integrated into MSW management this paper argues that there is a need for increased knowledge, data, more user-friendly LCA-tools andstrengthening regional partnerships for further transfer of knowledge between countries.