Essays about: "Chemical modification"

Showing result 1 - 5 of 40 essays containing the words Chemical modification.

  1. 1. Sustainable food packaging based on polyhydroxyalkanoate

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Safana Al-Ashor; [2024]
    Keywords : Biopolymers; Sustainable food packaging; Circular economy; Biobased and biodegradable materials; Food packaging; Processing technologies; Food quality; Shelf-life;

    Abstract : The Norwegian Food Research Institute (Nofima) and the University of Borås worked together to develop this project. The commonly used packaging materials pose a serious threat to the environment, as they are produced from nonrenewable crude oil and cannot decompose naturally. READ MORE

  3. 2. Wastewater Characterisation for Design and Modelling of Primary Settlers at Municipal Wastewater Treatment Plants

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Louise Westin; [2023]
    Keywords : Primary Settling Tank; Wastewater Treatment; Settleometer; Particle Settling Velocity Distribution; Modelling.; Technology and Engineering;

    Abstract : The primary settling tank (PST) is often one of the first treatment steps at a wastewater treatment plant (WWTP) and is the first process in the plant to remove significant amounts of suspended solids. Its role in wastewater treatment however, has oftentimes been neglected and little effort has been made to optimize and model the process. READ MORE

  4. 3. Geobacillus 7349 – A new potential biosurfactant producing microorganism

    University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Author : Zhuoying Deng; [2023]
    Keywords : biosurfactant; rhamnolipids; HPLC; HPAEC-PAD; bacteria growth; downstream purification; liquid-liquid extraction; biotechnology; Chemistry;

    Abstract : The main aim of this master project is to find out whether strain Geobacillus 7349 can produce biosurfactant during their growth by extraction and characterization of the product. The other goal is to optimize the cultivation condition of the strain. READ MORE

  5. 4. Chemical modification of starch in order to get thermoplastic properties

    University essay from KTH/Materialvetenskap

    Author : Emma Hallbert; Elsa Wadman; [2023]
    Keywords : thermoplastic starch; dialdehyde starch; schiff-base; imine chemistry; termoplastisk stärkelse; dialdehydstärkelse; schiffbas; iminkemi;

    Abstract : There are numerous advantages of replacing traditional non-biodegradable synthetic plastics with bio-based plastics. Starch is globally available, cheap, renewable, and biodegradable. However, starch has a poor product performance and is relatively difficult to process, as conventional melt processing techniques cannot be used. READ MORE

  6. 5. The effect of fiber structure on chemical modification of cellulosic fibers

    University essay from KTH/Kemiteknik

    Author : Hedvig Palm; Linn Palmér; Emil Törnqvist; Alexander de Potocki; [2023]
    Keywords : Kemi; cellulosa; substitutionsgrad; pappersmassa; katjonisering; EPTMAC; CHPTAC; hållbarhet; blekt sulfatmassa; oblekt sulfatmassa; CTMP; dissolvingmassa; modifierad cellulosa;

    Abstract : För att skapa ett hållbart samhälle måste material av fossilt ursprung ersättas med förnyelsebara och miljövänliga alternativ. Ett sådant alternativ är cellulosa från vedfibrer, som har stor potential att kunna ersätta många fossila material i framtiden. READ MORE