Circular economy is an economic model that is gaining more and more attention, themodel aims to close production chains by recirculate waste into the system as newraw material. Spent coffee grounds are a waste that has great potential to becomenew products since the spent coffee ground contains many valuable substances suchas polysaccharides, polyphenols, and lipids. Swedes are the sixth largest coffeeconsumers per capita in the world, which means that large quantities of coffeegrounds are produced in the country. Therefore, the purpose of this report is toinvestigate possible ways to valorize spent coffee grounds in the municipality ofStockholm, as an alternative to the treatment processes that exist today. Toinvestigate this, the main methods have been a literature review, a field study andeconomic analyses based on existing data. The results show that from 5 large coffee-shop chains in the municipality of Stockholm, approximately 138,477 kg of coffeegrounds can be collected each year. Furthermore, it shows that five differentmethods for extracting polysaccharides, polyphenols, biochar, oil, and protein fromspent coffee grounds have been effective and that these substances and products canbe used in, for example, the food industry, in cosmetics, as plastics and asadsorbents. The economic assessment shows that biochar, polyphenols, and oil arethe compounds and products that are economically profitable to extract, and theycan give a maximum profit of SEK 482.28/kg of spent coffee grounds. The resultsare consistent with previous research on the subject, but there are someuncertainties in the exact figures as there is a lack of economic analyses for spentcoffee grounds in the previous research. However, the results show great potentialfor spent coffee grounds in a circular economy, but further research is required toensure the economic gain. In addition, analyses need to be done on the ecologicalsustainability and more studies need to be done on coffee grounds in Sweden tovalidate the results. / Cirkulär ekonomi är en ekonomisk modell som får mer och mer uppmärksamhet,modellen syftar till att sluta produktionskedjor genom att återinföra avfall som nyttråmaterial. Kaffesump är ett avfall som har stor potential att bli nya produkter pågrund av att sumpen innehåller många värdefulla ämnen som polysackarider,polyfenoler och lipider. Svenskar är de sjätte största kaffekonsumenterna per capitai världen vilket gör att stora mängder kaffesump produceras i landet. Därför är syftetmed denna rapport att undersöka möjliga vägar för att värdesätta kaffesump iStockholms stad, som alternativ till de behandlingsprocesser som finns idag. För attundersöka detta har de huvudsakliga metoderna varit en litteraturstudie, enfältstudie och ekonomiska analyser baserade på befintliga data. Resultaten visar attfrån 5 stora kafékedjor i Stockholms stad kan cirka 138 477 kg kaffesump samlas invarje år. Vidare visar det att fem olika metoder för att utvinna polysackarider,polyfenoler, biokol, olja och protein ur kaffesump har varit effektiva och att dessaämnen och produkter kan användas inom exempelvis livsmedelsindustrin, ikosmetika, som plast och som adsorberande material. Den ekonomiskabedömningen visar att biokol, polyfenoler och olja är de ämnen och produkter somär ekonomiskt lönsamma att utvinna och de kan ge en maximal vinst på 482,28kr/kg kaffesump. Resultaten stämmer överens med tidigare forskning på ämnet mendet finns vissa osäkerheter i de exakta siffrorna då det saknas ekonomiska analyserför kaffesump i den tidigare forskningen. Resultaten visar dock på stor potential förkaffesump i en cirkulär ekonomi men vidare forskning krävs för att säkerställa denekonomiska vinningen. Dessutom behöver analyser göras på den ekologiskahållbarheten och fler studier behöver göras på kaffesump i Sverige för att valideraresultaten.

Samhället försöker ställa om från en linjär ekonomi, som varit normen, till en cirkulär ekonomi (CE): en ekonomi som genomsyras av att förlänga produkters livslängd, konsumera mindre och ta tillvara på de ändliga naturresurser som finns kvar. Avfall är något som inte ska ses som avfall, men som resurs i det cirkulära. Till hjälp finns styrdokument, lagstiftning och verktyg att ta del av, på internationell, nationell och lokal nivå, ett av dem är EUs avfallshierarki. I fallstudien undersöks hur medarbetare på Malmöbaserade Sysav (Sydskånes avfallsaktiebolag) arbetar med cirkulära flöden och CE i sitt vardagliga arbete, hur de ser på avfallshierarkin och hur de förhåller sig till styrdokument. Semistrukturerade intervjuer användes som metod och totalt intervjuades tio anställda på företaget. Resultatet visar att medarbetarna på Sysav, på grund av deras olika erfarenheter och yrkesroller, arbetar väldigt olika med cirkulära flöden, och har olika tankar kring vad det innebär. Det framkommer en rad nya idéer till förbättringar och effektiviseringar som skulle kunna implementeras. Slutligen visar Sysav som företag att det finns en rad åtgärder som kan tillämpas för skapa fler cirkulära flöden. / The society is actively trying to change from a linear economy, which has been the norm, to a circular economy: a society permeated by extending the life of products, consuming less and making use of the finite natural resources that remain. Waste is something that should be seen as resources. There are guiding documents, legislation and tools, like the EU’s waste hierarchy, to follow and make use of, at an international, a national and a local level. This case study examines how employees at Malmö-based Sysav (Sydskånes avfallsaktiebolag) work with circular flows and circular economy in their everyday work, how they view the waste hierarchy and how they relate to governing documents. Semi-structured interviews were used as the method and ten employees at the company were interviewed. The result shows that the employees at Sysav, due to their different experiences and professional roles, work very differently with circular flows, and have different ideas about what it means. A number of new ideas for improvements and efficiencies emerge that could be implemented. Finally, Sysav as a company shows that there are a number of measures that can be applied to create more circular flows.

Sverige idag genererar byggbranschen 12 miljoner ton avfall per år. Enligt svensk lag ska avfallet sorteras för att öka möjligheten till återvinning och återbruk. Byggbranschen står för drygt 20 procent av växthusgasutsläppen i Sverige och genom att återbruka byggmaterial kan denna siffra reduceras. Avsikten med detta examensarbete är att lyfta ett antal möjligheter för att minska klimatavtrycket från byggbranschen. Föreliggande studie syftar därför till att fokusera på de framgångsfaktorer som identifierats hos utmärkande projekt på Skanska gällande återbruk av byggmaterial och produkter. Syftet med studien är att undersöka och belysa de utmaningar som finns med att återbruka samt att uppmärksamma tillvägagångssätt för hur arbete med att återbruka kan ökas.Studien har baserats på intervjuer samt litteratursökning inom ämnet återbruk. Fem deltagare i olika projekt hos Skanska har intervjuats där återbruk varit en del av processen. Arbetet har begränsats till fem intervjudeltagare då det ansågs vara tillräckligt för att besvara studiens syfte. Studien har avgränsats till återbrukat byggmaterial och produkter från byggnader, där material från anläggningsarbeten inte inkluderas. Arbetet skrivs i samarbete med Skanska.De framgångsfaktorer som har identifierats i resultatet är att det är betydelsefullt att lägga god tid på materialinventering och att systematiskt dokumentera de material som finns att tillgå, samt att planering av återbruk sker tidigt i processen. En annan framgångsfaktor för att lyckas med återbruk är att involvera externa aktörer som kan förmedla materialet vidare. De utmaningar som finns med att återbruka byggmaterial och produkter är de krav som ställs genom myndigheter och i lagar. Även kunskapsnivån är bristfällig när det kommer till återbruk i branschen och därmed problematiseras processen. För att anamma återbruk i framtiden kommer det cirkulära byggandet och det långsiktiga perspektivet vara av betydelse inom byggbranschen. Ett sätt för att arbeta med återbruk är att involvera projektörer tidigt i processen genom att förse dem med återbrukat material som går att projektera in i projektet. Vid projekteringen av byggnader bör även materialens framtida återbruk finnas i åtanke. När återbruk blir en del av fler byggprojekt kommer det medföra att avfallet minimeras, det kommer främja företagens hållbarhetsarbete samt att klimatpåverkan från branschen med största sannolikhet kommer minska. / The construction industry generates 12 million tons of waste annually in Sweden alone. The waste according to Swedish law has to be sorted in order to increase the possibility of recycling and reuse. The construction industry produces 20 percent of the Swedish greenhouse gas emissions and by reusing building materials this number can be reduced. The intention of this bachelor's thesis is to illustrate possibilities for reducing the industry's climate footprint. Following thesis intends to focus on identifying the success factors of prominent projects regarding reuse of building materials and products at Skanska. The purpose of the thesis is to explore and illuminate the challenges that come with reusing and detect approaches on how to increase work with reused materials.The thesis is based on interviews and literature in the subject of reuse. Five participants from different projects at Skanska where reuse was a part of the process was interviewed. The interviews were limited to five participants because it was considered to be enough to answer the purpose of the study. The study is limited to reuse of materials and products from buildings, waste from other parts of the industry is not included. This study is written in a collaboration with Skanska.The success factors that were found in this study is that it is important to assign the material listing phase a good amount of time, to systematically document the materials at hand and to plan to reuse early in the process. Another success factor to reusing is to involve external vendors that can help assign the material to new proprietors. The challenges that come with reusing building materials and products are the requirements set by authorities and laws. Also the level of knowledge in the industry about reuse is inadequate which complicates the process. The circular flow and long-time perspective will be of importance in order to appropriate reuse in the building industry in the future. One way to initiate this is by involving architects early in the process by providing them reused materials to plan into their project. In the design of new buildings, the future reuse of the materials should be kept in mind. When reuse becomes a part of more building projects it will result in less waste, the business’ sustainability work will advance and the climate footprint from the industry will most likely get reduced.

Waste management is a global concern and landfill sites are facing a crisis of handling capacity. This is worsened by the fact that many consider landfilling as an environmentally responsible and cost-effective solution to waste disposal. Carnival City generates vast quantities of solid waste on a daily basis and most of it ends at the landfill, which it acknowledges that it’s a wastage of recoverable resources, hence its commitment of “zero-waste-to-landfills by 2022”. This study evaluated solid waste management practices at Carnival City Casino in Brakpan. Informed by an interpretive paradigm, qualitative methods including interviews, observations, photographs and document reviews were used to collect data. Based on abductive reasoning, the waste management hierarchy and the ISO 14001 standard were used as frameworks for recontextualising and presenting the collected data. The waste hierarchy sets out the preferred order of waste management practices, from the most favoured to the least preferred option. The effectiveness of current waste management practices is limited as Carnival City heavily depends on landfilling and implement waste minimisation, reuse, recycling and recovery on a small scale. Absence of a waste separation at source policy limits recycling activities significantly. The researcher noted the presence of some areas of conformity to South African legislation pertaining to waste management, international standards and Carnival City’s standard operating procedures, and some areas of good practice. The study showed that there is room for improving concerning Carnival City’s current waste management practices. It recommends that waste management training and awareness be undertaken on a continuous basis to improve current practices and ensure that more waste is diverted from landfill sites. Investment into waste to energy technologies should be considered to help Carnival City to meet Sun International’s commitment of “zero-waste-to-landfills by 2022”. Recycling must be maximised and its environmental and financial benefits be highlighted. The research recommends developing of a separation at source policy and its enforcement by the Environmental Committee as the absence of the documented procedures results in deviations from environmental objectives. Offenders who do not follow procedures should be duly punished. It also recommends that a disciplinary action and a fine be introduced for kitchens that will deviate from the policy. / Environmental Sciences / M. Sc. (Environmental Management)

Die stetig wachsende Abfallerzeugung und -bewirtschaftung stellt insbesondere Städte in aufstrebenden und schnell wachsenden Volkswirtschaften wie Indien, die sich dynamischen Transformationen gegenübersehen, vor große Herausforderungen. Dies gilt auch für die städtische Behörde in Delhi, da der Mangel an finanziellen Mitteln und technischem Wissen zu einer stark eingeschränkten Infrastruktur und begrenzten Kapazitäten in den betroffenen Gemeinden führt. Das Siedlungsabfallmanagement bietet traditionell Einkommensmöglichkeiten für Stadtbewohner, die informell arbeiten und wesentliche Dienstleistungen für die Stadt Delhi erbringen. Über viele Jahre hinweg haben die Entwicklungen im institutionalisierten Rahmen den Wettbewerb zwischen den informellen und formellen Abfallwirtschaftsakteuren um den Zugang zu Siedlungsabfällen verschärft. Dies hat die Grundlage für das Konfliktverhältnis zwischen den formellen Akteuren des Privatsektors und dem öffentlichen Sektor einerseits sowie den informellen Akteuren andererseits geschaffen. Das zentrale Ziel dieser Doktorarbeit ist es, zum einen die in den letzten drei Jahrzehnten veröffentlichten Strategien, Programme und Richtlinien für die Abfallbewirtschaftung in Indien und zum anderen die Akteure der Siedlungsabfallwirtschaft in Delhi zu analysieren. Auf diese Weise soll herausgearbeitet werden, welche Akteure oder Elemente Veränderungen im Kontext der Siedlungsabfallwirtschaft antreiben oder verhindern. Zentrale Annahme der Dissertation ist, dass die Entwicklungen in der Siedlungsabfallbewirtschaftung Indiens, die maßgeblich von einem investitionsintensiven und technologiebasierten Ansatz angetrieben werden, erhebliche Lücken zwischen Politik und Umsetzung aufzeigen. Die Analyse findet vor dem Hintergrund statt, dass der im Übermaß vorhandene Abfall sowohl eine Managementherausforderung für die Kommunen in Delhi, als auch eine wirtschaftliche Chance für die städtischen Armen sowie für Akteure des Privatsektors darstellt. / The continually increasing generation of waste and its management pose one of the biggest challenges for cities across the world, which is especially true for emerging and fast growing economies like India that are facing dynamic transformations. The growing generation of municipal solid waste (MSW) and the management thereof are an increased challenge particularly for urban authorities, as is the case in Delhi, since the lack of financial means, skills and knowledge leads to a severely constrained infrastructure and limited capacities of the municipalities involved. Traditionally, MSW management provides income opportunities for the urban poor working in informality. Waste workers provide essential services to the city of Delhi. However, over many years, developments in the institutionalised framework have increased the competition for access to waste between the informal and formal economies in the city. This has laid the ground for a conflicted relationship between formal private sector actors and the public sector on the one hand and informal private actors on the other. The two central objectives of this PhD research are, first, to analyse Indian MSW management policies, programmes and guidelines that were published over the past three decades, and, second, to analyse Delhi’s MSWM stakeholders to identify underlying actors’ dynamics, and who and what drives, shapes or prevents change in the context of MSWM. At the centre of the overarching argument lies the assumption that the developments of India’s MSWM over the last thirty years, which are driven by an investment-heavy and technology-based approach, reveal major gaps between policy and implementation. The research attempts to move between two poles: At one end, waste as something excessive and expandable is a management challenge for Delhi’s municipalities; at the other end, waste as something productive and profitable is an economic opportunity for informal as well as formal private sector actors.

The City of Tshwane is the capital city of South Africa and the administrative seat of government. The status of the city as a capital creates high expectations on the level of basic service delivery on municipal services like waste management, water, electricity and health. The city is currently facing challenges in relation to the delivery and implementation of waste management services. In an attempt to find solutions to the waste management challenges of the city a study on the implementation of waste management services is undertaken by the researcher. The study identifies and then analyses the underlying reasons for the challenges faced by the City of Tshwane in the implementation of waste management services. This aim of this study was to investigate and to analyse the implementation of waste management services in the City of Tshwane’s historically disadvantaged areas with particular focus on Region 01, 02, 05 and 07. In order to investigate these factors, a descriptive research design and qualitative methodology was used which related to convenient and purposive sampling of officials and data collected from fifteen (15) respondents using semi structured interviews and observations. The study also utilised document analysis to interpret the challenges and solutions related to the research topic. It emerged from the study that a lack of capacity and resources to perform efficient waste management services underpinned many of the challenges experience by the city. The failure of the city to ensure community participation and involvement is another reason for the challenges the city faces in waste management. Furthermore, the lack of policy implementation and enforcement is an element that the city needs to deeply consider. When policy is crafted with input of residents and when there is a social contract as to the roles and responsibilities of each party, it becomes easier to enforce. Some of the challenges that the city faces with regards to waste management can also be attributed to political interference and institutional deficiencies. Beyond issues like capacity, institutions and others, the city will continue to face challenges if it does not seriously invest in innovation and new technologies that address its generic and specific conditions in relation to the management of waste. The marginalisation and selective enforcement of by-laws on the informal recyclers and reclaimers are some of the findings of the study that demonstrate the inability of the city to find specific solutions to specifics regions on waste management .These challenges resulted in the peri urban regions like region 01, 02, 05 and 07 not receiving quality and consistent waste management services. The study recommends some interventions to address the waste management problems identified in the highlighted regions and entire City of Tshwane. Some of the recommended interventions include, assessing the unique characteristics of the communities and regions with a view of identifying waste management solutions that will be relevant for the circumstances and profile of such regions, ensure that proper and adequate resources, infrastructure and capacity is deployed to such areas to improve the waste services in those areas. Furthermore aggressive education and awareness campaigns conducted in partnership with communities will be critical to change people’s attitude towards waste management and a clean environment. This can be achieved through a consultative process led by the City of Tshwane in partnership with its communities and enforced through a progressive and incentive driven by-law system. / Public Administration and Management / M.P.A. (Master of Public Administration)