Essays about: "polystyren"

Showing result 1 - 5 of 6 essays containing the word polystyren.

  1. 1. Enhancing the degradation rate of microplastics and organizing a study visit about sustainability

    University essay from KTH/Lärande

    Author : Marianne Al-Ghorabi; [2020]
    Keywords : Accommodation; assimilation; Fenton reaction; microplastics; polypropylene; polystyrene; proximal development zone; study visit; visible light photocatalysis; zinc oxide nanorods; Ackommodation; assimilation; den proximala utvecklingszonen; Fenton reaktion; fotokatalys med synligt ljus; mikroplast; polypropalen; polystyren; studiebesök; zinkoxid nanorör.;

    Abstract : Microplastics take hundreds to thousands of years to degrade in nature, and pose a threat to the environment. A photocatalytical degradation method have been developed to take advantage of solar light to degrade microplastics, however it takes several months to degrade microplastics with the process. READ MORE


    University essay from Lunds universitet/Kemiska institutionen

    Author : Lina Le; [2018]
    Keywords : physical chemistry; fysikalisk kemi; Chemistry;

    Abstract : Microparticles of various sizes carrying different surface modifications have numerous technological and biomedical applications, for example to create a larger target for a molecular receptor by binding multiply ligands to the surface of the microparticle. The aim of the present work is to study how to most efficiently couple protein molecules to the surface of such microparticles. READ MORE

  3. 3. Experimental Fire Study of Expanded Polystyrene Insulation in Concrete and Lightweight Concrete Wall Constructions

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Jacob Nellgård; [2017]
    Keywords : EPS; Expanded Polystyrene; Concrete; Lightweight Concrete; Vertical Firespread;

    Abstract : In today’s building industry creating and finding a cheaper and more efficient way of construction with the same standards is the primary goal. The necessity in testing the constructions in different scenarios is of highest interest, primarily in saving future lives but also in the residual value for the insurance point of view. READ MORE

  4. 4. Biofouling on plate heat exchangers and the impact of advanced oxidizing technology and ultrasound

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Anna Hjalmars; [2014]
    Keywords : Ultrasound; Biofilm; AOT; Plate Heat Exchangers and Crystal Violet;

    Abstract : Fouling in general and biofouling in specific is a problem concerning many industries. Biofouling occur in environments favorable for biological growth. As an example, industries using cooling water have problems with biofouling. The problem is apparent on heat exchangers as biofilm reduces the heat transfer and thus the performance. READ MORE

  5. 5. Life cycle assessment of the semidetached passive house "Röda lyktan" in northern Sweden : A comparison between the construction phase and the use phase

    University essay from Mittuniversitetet/Institutionen för teknik och hållbar utveckling

    Author : Michelle Svensson; [2013]
    Keywords : Passiv house; low energy house; LCA; life cycle assessment; insulation; rock wool mineral wool ; cellular plastic sheets polystyrene ; GWP; global warming potentials; CED; cumulative energy demand; USEtox; toxicity; Jämtland; Östersund; Passivhus; lågenergihus; LCA; livscykelanalys; isolering; stenull mineralull ; cellplast polystyren ; GWP; global uppvärmningspotential; CED; kumulativt energibehov; USEtox; toxicitet; Jämtland; Östersund;

    Abstract : This report is a life cycle assessment of a relatively newly built semidetached passive house/low energy house located in Östersund/Jämtland. The analysis concentrates on the building materials in the construction phase and the energy in the use phase for 50 years. READ MORE