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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20502 - Paper and wood

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Name of the periodical

Ultrasonics Sonochemistry

ISSN

1350-4177

e-ISSN

—

Volume of the periodical

72

Issue of the periodical within the volume

April

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

105462

UT code for WoS article

000629685900001

EID of the result in the Scopus database

2-s2.0-85099503430