Essays about: "NaOH treatment"

Showing result 1 - 5 of 22 essays containing the words NaOH treatment.

1. 1. Urea-Based Treatments of Unretted Hemp Fibres from Residual Streams

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

   Author : Danilo Esteban Ortiz Sarasty; [2023]
   Keywords : Finola waste; stalks; unretted hemp fibres; degumming; cold urea alkali; microwave-urea;

   Abstract : More sustainable and efficient degumming methods are required to extract finner bast fibres, especially from agro-industrial waste streams such as stalks from hemp for food purposes. For this reason, in this study, two urea-based treatments were evaluated as degumming alternatives for unretted hemp fibres from residual streams, one at cold and alkaline conditions (CUA) and the other in combination with microwave radiation (MWU). READ MORE

3. 2. Separation and acidification of digested animal manure : properties of the future organic fertilizers

   University essay from SLU/Dept. of Soil and Environment

   Author : Marie Björs; [2023]
   Keywords : Digestate; Eutrophication; Farmers’ survey; Plasma activation; Screw press;

   Abstract : Agricultural areas with a high animal density contribute to eutrophication in waterbodies and seas worldwide due to accumulation of nutrients around animal farms. Animal manure is heavy and bulky, thus unpractical to transport long distances and new techniques have been developed to refine animal manure and make it easier to transport. READ MORE

4. 3. Alkaline wet oxidation of biorefinery lignin from wheat straw

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Maja Lindblad; [2021]
   Keywords : alkaline wet oxidation; lignin oxidation; wheat straw; chemical pretreatment; biorefinery lignin; anaerobic digestion; response surface-modelling; chemical engineering; Technology and Engineering;

   Abstract : Climate change and depletion of fossil resources have generated a need for energy production based on renewable resources such as lignocellulosic biomass. Agricultural residues, like wheat straw, is lignocellulosic biomass that could contribute to the energy supply if it was used for biogas production. READ MORE

5. 4. Fractionation of Wheat Bran for Utilisation in Biorefinery

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Gabriella Haag; [2021]
   Keywords : Wheat bran; biorefinery; chemical engineering; vetekli; bioraffinaderi; extraction; Technology and Engineering;

   Abstract : Wheat bran is a by-product from the production of wheat flour. Nowadays wheat bran is mostly used as feed for animals, in the food and baking industry or it is simply burned in open air. READ MORE

6. 5. Evaluation of Wet Spinning of Fungal and Shellfish Chitosan for Medical Applications

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

   Author : Ghasem Mohammadkhani; [2021]
   Keywords : Chitosan fiber; Fungal fiber; Wet spinning; Hydrogel; Suture applications;

   Abstract : The aim of this project was to address the food waste problem, particularly bread waste, to some extent by producing monofilaments obtained from wet spinning of fungal hydrogel through the cultivation of Rhizopus delemar on bread waste. The project had two phases. READ MORE