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 7 of 7 for “"paper sludge"”.
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Modeling and Production of Bioethanol from Mixtures of Cotton Gin Waste and Recycled Paper Sludge
… mixtures of cotton gin waste (CGW) and recycled paper sludge (RPS) at various initial enzyme concentrations of Spezyme AO3117 and Novozymes NS50052 was investigated. The experiments showed that the concentrations of reducing sugars and the conversions of the mixtures increased with increasing …
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A comparison of technical and environmental merits of producing bio-ethanol and bio-methane from waste paper sludge
… potential in bio-energy production from waste papers and cellulosic waste sludge, however, it is still unclear whether it would be more feasible to convert the mostly wet non-recyclable waste paper to bio-methane or to bio-ethanol. The primary objective of this study was to evaluate the …
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Co-adsorption of phenol and calcium from an industrial wastewater stream
The pulp and paper industries are large producers of industrial wastewater that contain both organic and inorganic pollutants that influence water quality and availability. Conventional wastewater treatment methods such as chemical precipitation and membrane filtration are not economical and …
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Greenhouse gas mitigation cost of energy from biogas : a techno-economic analysis of co-digestion of three types of waste in Cape Town
This paper investigates, in the context of Cape Town the emission reduction potential (ERP) of energy from biogas and related cost. Two project-scale models and a city-scale model were developed. Substrates for project model 1 were organic fraction of municipal solid waste (OFMSW) and primary …
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Soft Soil Stabilisation Using a Novel Blended Cementitious Binder Produced From Waste Fly Ashes
… reuse of waste material fly ashes such as waste paper sludge ash (WPSA), palm oil fuel ash (POFA) and rice husk ash (RHA) has many advantages, specifically in terms of eliminating the cost of their transportation and eventual landfill, their continuous supply and the negligible, or zero, cost of …
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Development of a New Environmentally Friendly Glass Fibre Reinforced Cold Mix Microasphalt with High Resistance to Cracking and Deformation.
… in road trial sections. In addition, paper sludge ash (PSA), cement kiln dust (CKD) and rice husk ash (RHA) were used as a novel secondary filler to; i) replace ordinary Portland cement (OPC) currently used for replacing limestone filler and ii) improve the mechanical properties and …
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HIGH STRENGTH COLD ROLLED ASPHALT SURFACE COURSE MIXTURES
… aim, four SCMs have been used which were: Waste Paper Sludge Ash (WPSA), which has high lime and gelenite content, Poultry Litter Fly Ash (PLFA), which has high alkali components, Silica Fume (SF), and Rice Husk Ash (RHA), which is high silica content and cost-plus material, collectively instead …