Essays about: "microwave-assisted extraction"

Found 4 essays containing the words microwave-assisted extraction.

  1. 1. Remediation of an arsenic-contaminated anoxic aquifer in hjältevad with zerovalent iron : assessment and modelling of sorption strength and solubility of arsenic

    University essay from SLU/Dept. of Soil and Environment

    Author : Kathrin Leicht; [2021]
    Keywords : arsenic remediation; zerovalent iron; anoxic aquifer;

    Abstract : In-situ injection of zerovalent Iron (ZVI) particles to remediate contaminated groundwater is a widely applied approach. However, studies assessing the remediation and immobilisation mechanisms of Arsenic (As) under anoxic field conditions with zerovalent iron particles are lacking, especially for nanosized sulphidated ZVI (S-nZVI) and oxidic shell free ZVI (OSF-nZVI). READ MORE

  3. 2. Valorization of lignin for material applications

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Filippa Winkvist; [2021]
    Keywords : microwave-assisted extraction; lignin; LCC; PLA; Pine; mikrovågsassisterad extraktion; lignin; LCC; PLA; tall;

    Abstract : Lignin är, med undantag för cellulosa, den av de naturliga polymererna det finns mest av på jorden och den ledande källan till fenolföreningar. De träväxterna som existerar idag, innehåller ca 30 % av just denna biopolymer. READ MORE

  4. 3. Transformation of lignin into biobased thermoset

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Linnea Cederholm; [2018]
    Keywords : lignin; microwave heating; solvolysis; biobased thermoset; lignin; mikrovågsbaserad teknik; solvolys; biobaserad härdplast;

    Abstract : Combined microwave assisted extraction/degradation of technical lignin in green solvents was successfully employed to generate polyphenolic oligomers with lower Mw than the starting material. For Lignoboost, the highest liquid yield (65 %) was obtained in 20 min at 160 °C using ethanol as solvent. READ MORE

  5. 4. The determination of three terpens in rosemary by GC, using two extraction methods, microwave assisted extraction and ultrasonic extraction, with isooctane as solvent.

    University essay from Uppsala universitet/Institutionen för kemi - BMC

    Author : Ande Tarum; [2015]
    Keywords : ;

    Abstract : .... READ MORE