Search for dissertations about: "emerging chemicals"

Showing result 1 - 5 of 17 swedish dissertations containing the words emerging chemicals.

  1. 1. Confronting new challenges in chemical assessment : emerging contaminants and climate change

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm Univeristy

    Author : Deguo Kong; Stockholms universitet.; [2013]
    Keywords : Natural Sciences Earth and Related Environmental Sciences; Naturvetenskap Geovetenskap och miljövetenskap; emerging chemicals; climate change; fate; multimedia model; risk assessment; physical-chemical property; uncertainty; Arctic; Baltic; time series; persistent organic pollutants; temporal trend; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Both chemical-specific (e.g. physical-chemical properties) and environmental (e.g. READ MORE

  2. 2. Environmental Assessment of Green Chemicals - LCA of Bio-Based Chemicals Produced Using Biocatalysis

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm Univeristy

    Author : Linda Tufvesson; Lunds universitet.; Lund University.; [2010]
    Keywords : industrial biotechnology; green chemicals; Life cycle assessment; renewable resources; TEKNIKVETENSKAP; TECHNOLOGY;

    Abstract : It is of at most importance that society reduces its impact on the environment. In the chemical industry the use of renewable resources will play a fundamental role in the transition to more sustainable chemical products. Also industrial biotechnology, i.e. READ MORE

  3. 3. Environmental Assessment of Emerging Routes to Biomass Based Chemicals The Case of Ethylene

    University dissertation from Chalmers University of Technology

    Author : Christin Liptow; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Keywords : life cycle assessment; LCA; biomass based chemicals; ethylene; fermentation; gasification; wood; sugarcane; land use; time lags;

    Abstract : The production of bulk chemicals from biomass instead of fossil resources is perceived as one promising option to decrease society's environmental impact. However, though considerable research and development efforts aim at such production, it might take several more years before biomass based bulk chemicals are fully commercialized. READ MORE

  4. 4. Environmental Assessment of Emerging Bio-based Production - Possibilities in a Future Bio-economy

    University dissertation from Environmental and Energy System Studies, Lund University

    Author : Anna Ekman; Lunds universitet.; Lund University.; [2012]
    Keywords : Bio-based chemicals; Biorefinery; Life cycle assessment; Industrial biotechnology; Bio-economy; TEKNIKVETENSKAP; TECHNOLOGY;

    Abstract : The bio-economy has been put forward as a strategy to increase economic growth without this leading to increased emissions of greenhouse gases. A key concept behind the bio-economy is the increased use of biomass for applications such as the production of bio-based chemicals and materials but also an increased importance for biotechnology and biorefinery systems in the production of these products. READ MORE

  5. 5. Environmental fate of chemicals released from consumer products : Multimedia modelling strategies

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Author : Anna Palm Cousins; Stockholms universitet.; [2013]
    Keywords : Natural Sciences Earth and Related Environmental Sciences Environmental Sciences; Naturvetenskap Geovetenskap och miljövetenskap Miljövetenskap; Multimedia fate model; urban model; PBDEs; phthalate esters; indoor environment; emissions; exposure; BDE 209; DINP; DEHP; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : The objective of this thesis was to assess the environmental fate and transport of chemicals emitted from consumer products through the development and application of modelling tools. The following hypotheses were tested: i) Multimedia fate models can be applied in a multistage assessment process to emerging chemicals when limited knowledge exists to identify the likely environmental fate and to direct further research; ii) the indoor environment acts as a source of anthropogenic substances in consumer products to the outdoor environment; and iii) chemical removal pathways in the indoor environment are important for the fate of organic chemicals in densely populated areas. READ MORE