Figure 1.
Effect of mediators (ABTS - 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid, HBT - 1-hydroxybenzotriazole, Syr - syringaldehyde) and inhibitor (SA – sodium azide) on the deinking of ONP pulp with laccase enzyme.
Figure 2.
Analysis of phenolic compounds, hydrophobic compounds and reducing sugars in effluent released after xylanase (X) and laccase (L) treatment.
Table 1.
Physical and Chemical characterization of enzymatically and physically deinked pulp.
Table 2.
Deinking of waste paper pulps by P-X-L-C treatment and reduction in chemical load.
Figure 3.
X-ray diffraction analysis of control (P-U-C) and test (P-X-L-C treated) ONP pulp.
Table 3.
The crystallinity index and apparent crystal size (ACS) of untreated (P-C) and treated (P-X-L-C) ONP pulp cellulose.
Figure 4.
FTIR spectra of (1) P-C (2) P-X-L-C treated ONP pulp.
Table 4.
Signals assignment of hand sheets in FTIR spectra and their relative intensity for untreated (P-C) and treated (P-X-L-C) pulp.
Figure 5.
Scanning electron micrographs of (A) P-C and (B) P-X-L-C treated ONP pulp.
Table 5.
Optimization of parameters for sonication (S) and microwave (MW) treatment of ONP pulp.