Search for dissertations about: "Cleaner production"

Showing result 6 - 10 of 23 swedish dissertations containing the words Cleaner production.

  1. 6. Extended Producer Responsibility in Cleaner Production: Policy Principle to Promote Environmental Improvements of Product Systems

    University dissertation from IIIEE, Lund University

    Author : Thomas Lindhqvist; Lunds universitet.; Lund University.; [2000]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Environmental technology; kontroll av utsläpp; pollution control; Miljöteknik; EPR Extended Producer Responsibility Product Environment Policy Recycling; Industriell ekonomi; Commercial and industrial economics;

    Abstract : Popular Abstract in Swedish Produkternas miljöpåverkan har varit en av de stora nya frågorna sedan 10-15 år tillbaka. Att det uppstår betydande miljöproblem under en varas hela livscykel förstod man snart, men frågan var vad man kunde göra åt det. Jag kom att arbeta med återvinningsfrågor under senare hälften av 1980-talet. READ MORE

  2. 7. Microbial Production of Bio-Based Chemicals: A Biorefinery Perspective

    University dissertation from IIIEE, Lund University

    Author : Tarek Dishisha; Lunds universitet.; Lund University.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biorefinery; platform chemical; organic acid; propionic acid; 3-hydroxypropionic acid; 3-hydroxypropionaldehyde; methacrylic acid; 1; 3-propanediol; Propionibacterium acidipropionici; Lactobacillus reuteri; Gluconobacter oxydans; high cell density fermentation; biotransformation; product inhibition; cell recycle; immobilized cells; chemical catalysis; pdu operon;

    Abstract : Popular Abstract in English A large variety of microorganisms are present in nature and have indispensable roles in recycling carbon, remediation of the environment, agriculture, and also in providing health benefits to humans. Microorganisms are microscopic versatile living factories that can consume several different natural as well as synthetic compounds for their growth and also produce different useful chemicals. READ MORE

  3. 8. Titanium oxide nanoparticle production using high power pulsed plasmas

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Rickard Gunnarsson; Linköpings universitet.; Linköpings universitet.; [2016]

    Abstract : This thesis covers fundamental aspects of process control when growing titanium oxide nanoparticles in a reactive sputtering process. It covers the influence of oxygen containing gas on the oxidation state of the cathode from which the growth material is ejected, as well as its influence on the particles oxidation state and their nucleation. READ MORE

  4. 9. Fuel Reforming for Hydrogen Production in Heavy-Duty Vehicle Applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Moa. Z. Granlund; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aging · autothermal fuel reforming · CeO2-ZrO2 · characterization · diesel · H2-assisted HC-SCR · micro reactor · monolith; Chemical Engineering; Kemiteknik;

    Abstract : The depletion of fossil fuels together with growing environmental concerns have created incitement for developing a more energy-efficient and environmentally-friendly vehicle fleet. The development towards cleaner heavy-duty vehicles started already in the 80’s with the introduction of emission legislations. READ MORE

  5. 10. Improving Stress Tolerance in Industrial Saccharomyces cerevisiae Strains for Ethanol Production from Lignocellulosic Biomass

    University dissertation from Department of Chemistry, Lund University

    Author : Valeria Wallace; Lunds universitet.; Lund University.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Saccharomyces cerevisiae; lignocellulose; ethanol; inhibitors; temperature; stress tolerance;

    Abstract : Popular Abstract in English Oil resources are finite; and political and economic factors affecting oil production,together with the environmental damage associated with the increased use of oil by a rapidly growing population, have underscored the need for developing cleaner technologies based on sustainable resources. In this context, any lignocellulosic biomass that is not used in the food chain, such as woody crops and agricultural and forestry by-products, is an appealing raw material for the production of so-called “second-generation (2G) biofuels”, and more specifically 2G ethanol (as opposed to the “first-generation (1G) ethanol”, which is based on edible cellulosic biomass). READ MORE