211
Miscanthus for Bio-based Products
TABLE 11.6
Content of the Trace Elements in Pulp, mg kg −1
Trace Elements
Sample 1
Sample 2
Sample 3
Average Value
Ti
3.64 ± 1.12
2.97 ± 1.08
3.53 ± 1.40
3.38 ± 1.20
Mn
2.24 ± 0.25
2.21 ± 0.23
2.96 ± 0.31
2.47 ± 0.26
Fe
16.02 ± 0.35
16.13 ± 0.33
25.02 ± 0.47
19.06 ± 0.38
Ni
0.24 ± 0.08
0.28 ± 0.08
0.29 ± 0.10
0.27 ± 0.09
Cu
88.77 ± 0.43
81.31 ± 0.39
104.67 ± 0.50
91.58 ± 0.44
Zn
23.14 ± 0.21
20.94 ± 0.19
28.55 ± 0.26
24.21 ± 0.22
Sr
0.22 ± 0.01
0.19 ± 0.01
0.24 ± 0.02
0.22 ± 0.01
Sn
0.71 ± 0.06
0.62 ± 0.06
0.76 ± 0.07
0.70 ± 0.06
Pb
13.06 ± 0.12
11.68 ± 0.12
15.08 ± 0.16
13.28 ± 0.13
content) to other nonwood plant materials; and significantly exceed the
value of this indicator in softwood and hardwood (Danielewicz et al., 2015).
The organosolvent peracetic pulp from M. × giganteus with the duration of
cooking 90 minutes was selected for investigation of physical properties.
The strength properties of handmade sheets from peracetic pulps had the
following physical and mechanical parameters: breaking length 8300 m,
tear resistance 310 mN, burst resistance 220 kPa. The obtained data testify
to high physical and mechanical indicators and the possibility of using
this cellulose in the production of various types of paper and cardboard
(Barbash et al., 2020).
This pulp was analyzed for the content of Pb and other elements; using
the X-Ray Roentgen-fluorescence analysis, results are presented at Table 11.6.
The concentrations of Mn, Fe, Ni, Cu, Zn Sr, Pb and Zr are limited, so pulp
may be used for further processing.
The research describes the conversion process of M. × giganteus biomass
produced in trace elements contaminated soil to pulp using peracetic treatments. The delignification of initial raw material yielded pulp with a low
lignin and ash content and high brightness at low energy costs and in a short
cooking time with limited concentration of trace elements.
References
Alexopoulou, E. (2018). Perennial Grasses for Bioenergy and Bioproducts: Production, Uses,
Sustainability and Markets for Giant Reed, Miscanthus, Switchgrass, Reed Canary
Grass and Bamboo. Academic Press, London, UK.
Bajpai, P. (2018). Brief description of the pulp and papermaking process. In P. Bajpai
(Ed.), Biotechnology for Pulp and Paper Processing (pp. 9–26). Springer, Singapore.
https://doi.org/10.1007/978-981-10-7853-8_2.