Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Waste valorisation"”.
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Sustainability assessment of waste valorisation and recycling technologies applied in agriculture
L'abstract è presente nell'allegato / the abstract is in the attachment
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Early-stage design and development of mine waste valorisation technologies with expert input: a case study of South African sulfide-enriched coal waste
… of both valuable products and large bodies of waste, which are traditionally disposed of on land and carry environmental and social risks. Circular economy and resource efficiency trends have shifted the focus from disposal to waste reuse and recycling. Despite the benefits of the circular …
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Optimisation of use of waste materials by Rhodopseudomonas palustris
… manufacture is an increase in the production of waste glycerol – a low-value by-product. There is currently no cost-effective, ecologically sound solution for how to use or dispose of this waste glycerol. However, metabolising that waste biologically (bioremediation) is an option with …
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Applications of systems thinking in integrated solid waste management planning for African cities: the case of Nairobi, Kenya
The majority of solid waste generated by urban living cannot be assimilated in the city environment,and initial improvements in urban cleanliness and health were only realized when organized wastecollection and disposal outside of city limits was introduced in Europe in the late 19th …
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Bioaugmentation and biostimulation of a South African coal-based Technosol as a mine rehabilitation strategy
… 70 million tonnes of material are added to coal waste dumps in South Africa. To alleviate the environmental and social burdens of unsightly mine waste dumps, improved management of existing discarded materials and new wastes, and fertile soils for land rehabilitation are essential. To achieve …
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Extraction and characterization of collagen from bovine hides for preparation of biodegradable films
… hide off-cuttings, shavings and trimmings. This waste raw material is under-utilised and presents a waste valorisation opportunity to derive a high-value product such as collagen. Collagen is a highly sought after protein which consists of three polypeptide chains, comprising 30% of the mammalian …
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Decontamination and Valorisation of a Corn-to-Ethanol Biofuel Waste Stream
… resulting in the generation of novel, complex waste streams which challenge conventional treatment methods. This study investigates the physiochemical characteristics, decontamination and valorisation potential of a tertiary waste stream (TWS) produced during a corn-to-ethanol whole stillage …
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Biotechnologická produkce polyhydroxyalkanoátů pomocí termofilních bakterií
Polyhydroxyalkanoáty (PHA) jsou mikrobiální biopolymery, které mohou představovat částečnou alternativu k petrochemicky vyráběným plastům. Jejich hlavní předností je biodegradabilita, biokompatibilita a možnost produkce z obnovitelných zdrojů. Nicméně náklady na jejich produkci jsou stále vyšší než …
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Investigation of alternative carbon sources for the biological treatment of synthetic sulphate-laden water and mine impacted water in a linear flow channel reactor
… when treating low-volume, circum-neutral wastewater. Biological sulphate reduction (BSR) offers a sustainable alternative for sulphate removal and is applicable to partially treated AMD as well as circum- neutral, mine-impacted water. Coupled with partial sulphide oxidation, it also has …
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Geo-tiles: manufacturing tiles from copper mine tailings using geopolymerisation
… feasibility of using aluminosilicate-rich mine waste, termed tailings, as the primary raw material to produce tiles using the low-energy geopolymerisation process. Traditional efforts to increase sustainability of ceramic tile manufacturing include waste valorisation to reduce virgin raw …
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NEW BIOCATALYTIC PLATFORMS FOR THE SYNTHESIS OF HIGHLY VALUABLE COMPOUNDS THROUGH INTENSIFIED BIOPROCESSES
… nature of this process, I valorised the apple waste as a valuable medium to produce high quantities of BC functionalised to immobilise an extremophilic β-glycosidase to perform a selective de-glycosylation of the apple-derived phloridzin into phloretin, an important bioactive molecule. …
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Valorisation of waste streams within the agri-food sector
… food products, a significant amount of waste is generated during processing. Given increased global competition in the sector and new challenges including climate mitigation it is desired to enhance the overall value and image of the sector and hence valorisation of wastes is …