Search for dissertations about: "lignosulphonate"
Showing result 1 - 5 of 6 swedish dissertations containing the word lignosulphonate.
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1. Evaluation of Dust Suppressants for Gravel Roads: Methods Development and Efficiency Studies
Abstract : Application of the proper dust suppressant to a gravel road ensures road safety and riding comfort as well as creating a cleaner and healthier environment for residents in buildings adjacent to the road. It also reduces the need and cost for vehicle repair, road maintenance activities, and aggregate supplementation. READ MORE
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2. Evaluation of Dust Suppressants for Gravel Roads : Methods Development and Efficiency Studies
Abstract : Approximately 75 percent (300 000 km) of the total Swedish road network and 20 percent(20 000 km) of the national road network consists of gravel roads. One of the most significantproblems associated with gravel roads is traffic-generated dust emission, which contributes tothe deterioration of the road surface and acts as a major source of particulate matter releasedinto the atmosphere, thereby involving public economics, road safety, human health, andenvironmental quality. READ MORE
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3. Structural Modifications of Lignosulphonates
Abstract : Lignosulphonates are by‐products from the sulphite pulping process for the manufacture ofspecialty dissolving pulps and paper. During the liberation of the cellulose, the lignin isfractionated and solubilised through covalent addition of sulphonic acid groups at variouspositions in the structure. READ MORE
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4. Silicon Carbide and Silicon Nitride Ceramics Based on Colloidal Processing and Sol-Gel Techniques
Abstract : The work in this dissertation deals with the development of silicon carbide and silicon nitride-based materials using colloidal processing and sol-gel techniques. Special attention has been given to the optimization of the homogeneity in ceramic multicomponent systems. READ MORE
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5. Renewable and Scalable Energy Storage Materials Derived from Quinones in Biomass
Abstract : Currently there is an urgent need to reduce the use of fossil fuels, and efficient sustainable energy harvesters from sun and wind have been developed and are widely used for electricity generation. Storage of electrical energy is accordingly necessary to accommodate the time varying supply of wind and solar electricity. READ MORE