Separation of cellulose from industrial paper mill wastewater dried sludge using a commercial and cheap ionic liquid

Autor: Josep Font, Magdalena Olkiewicz, Katarzyna Glińska, Agustí Fortuny, Jaume Giralt, Frank Stüber, Mohammed Aqlan, Christophe Bengoa, Esther Torrens, Azael Fabregat, Daniel Montané
Přispěvatelé: Universitat Politècnica de Catalunya. Departament d'Enginyeria Química
Rok vydání: 2019
Předmět:
Enginyeria química::Química del medi ambient::Química de l'aigua [Àrees temàtiques de la UPC]
Environmental Engineering
Cel·lulosa
Sludge valorisation
Ionic Liquids
Membrane separation
02 engineering and technology
Wastewater
010501 environmental sciences
Ionic liquid
Waste Disposal
Fluid
01 natural sciences
Separation
chemistry.chemical_compound
Industrial paper mill wastewater
Hydroxymethyl
Cellulose
Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus [Àrees temàtiques de la UPC]
Solucions iòniques
Water content
0105 earth and related environmental sciences
Water Science and Technology
Ions
Sewage
business.industry
Extraction (chemistry)
Separació de membranes
Paper mill
021001 nanoscience & nanotechnology
Pulp and paper industry
Solvent
chemistry
0210 nano-technology
business
Zdroj: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Popis: Industrial wastewaters and their treatment are now placed at the heart of the environmental concerns that industries face. Some research work has been carried out in order to limit the impact of these wastes on the environment as well as their costs. In this study, wastewater dehydrated sludge (55% wt. water content) from the paper industry was used to recover cellulose by using tetrakis(hydroxymethyl)phosphonium chloride, [P(CH2OH)4]Cl, ionic liquid as a solvent. The ionic liquid has shown remarkable results in terms of cellulose extraction in addition to its non-volatility and lower toxicity compared to organic volatile solvents. All cellulose, based on dry sludge, was recovered from the industrial dehydrated sludge with better operation conditions. The influence of temperature and the quantity of ionic liquid was preliminary studied in order to optimise the extraction conditions.
Databáze: OpenAIRE
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