Assessment of the papermaking potential of processed Miscanthus x giganteus stalks using alkaline pre-treatment and hydrodynamic cavitation for delignification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43919152" target="_blank" >RIV/62156489:43410/21:43919152 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ultsonch.2021.105462" target="_blank" >https://doi.org/10.1016/j.ultsonch.2021.105462</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ultsonch.2021.105462" target="_blank" >10.1016/j.ultsonch.2021.105462</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of the papermaking potential of processed Miscanthus x giganteus stalks using alkaline pre-treatment and hydrodynamic cavitation for delignification

Popis výsledku v původním jazyce

One way of satisfying increased market demand and simultaneously achieving a reduced environmental load in the industrial paper production is the use of fibrous agricultural residues. The aims of this study were i) to investigate the effect of alkaline - hydrodynamic cavitation (HC) pre-treatments on the delignification of Miscanthus x giganteus stalks (MGS) and ii) establishing the suitability of MGS as feedstock and their exploitation in pulp and paper manufacturing. It was demonstrated that the proposed treatment is an efficient delignification method for the non-wood fiber sources, such as miscanthus. A significant outcome of this work was the observation that HC treatment preserved the fibres lengths and surface quality of raw MGS, but at the same time increased the amount of kinked and curled fibers present in cavitated miscanthus fibers. The average miscanthus fiber length was found to be relatively short at 0.45 (+-0.28) mm, while the slenderness ratio, the flexibility coefficient and Runkel ratio values were calculated to be 28.13, 38.16 and 1.62, respectively. The estimated physical properties of MGS pulp hand-sheets were 24.88 (+-3.09) N m gMINUS SIGN 1 as the tensile index, 0.92 (+-0.06) kPa m2 gMINUS SIGN 1 as the burst index and 4.0 (+-0.37) mN m2 gMINUS SIGN 1 as the tear index. Overall the current work demonstrated effective use of hydrodynamic cavitation for improving the processing in pulp and paper manufacturing.

Název v anglickém jazyce

Assessment of the papermaking potential of processed Miscanthus x giganteus stalks using alkaline pre-treatment and hydrodynamic cavitation for delignification

Popis výsledku anglicky

One way of satisfying increased market demand and simultaneously achieving a reduced environmental load in the industrial paper production is the use of fibrous agricultural residues. The aims of this study were i) to investigate the effect of alkaline - hydrodynamic cavitation (HC) pre-treatments on the delignification of Miscanthus x giganteus stalks (MGS) and ii) establishing the suitability of MGS as feedstock and their exploitation in pulp and paper manufacturing. It was demonstrated that the proposed treatment is an efficient delignification method for the non-wood fiber sources, such as miscanthus. A significant outcome of this work was the observation that HC treatment preserved the fibres lengths and surface quality of raw MGS, but at the same time increased the amount of kinked and curled fibers present in cavitated miscanthus fibers. The average miscanthus fiber length was found to be relatively short at 0.45 (+-0.28) mm, while the slenderness ratio, the flexibility coefficient and Runkel ratio values were calculated to be 28.13, 38.16 and 1.62, respectively. The estimated physical properties of MGS pulp hand-sheets were 24.88 (+-3.09) N m gMINUS SIGN 1 as the tensile index, 0.92 (+-0.06) kPa m2 gMINUS SIGN 1 as the burst index and 4.0 (+-0.37) mN m2 gMINUS SIGN 1 as the tear index. Overall the current work demonstrated effective use of hydrodynamic cavitation for improving the processing in pulp and paper manufacturing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20502 - Paper and wood

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ultrasonics Sonochemistry

ISSN

1350-4177

e-ISSN

—

Svazek periodika

72

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

105462

Kód UT WoS článku

000629685900001

EID výsledku v databázi Scopus

2-s2.0-85099503430