THE EFFECT OF DIFFERENT CONCENTRATIONS OF CELLULASE ENZYME ON OPTICAL AND PHYSICAL PROPERTIES OF ONP DEINKED PULP

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AKBARPOUR IMAN; RESALATI HOSSEIN

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Journal: IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES Year:2011 | Volume:2 | Issue:1 Page(s): 1-15

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Information Journal Paper

Title

THE EFFECT OF DIFFERENT CONCENTRATIONS OF CELLULASE ENZYME ON OPTICAL AND PHYSICAL PROPERTIES OF ONP DEINKED PULP

Author(s)

AKBARPOUR IMAN | RESALATI HOSSEIN | Issue Writer Certificate

Keywords

CELLULASE ENZYMEQ1

DEINKINGQ2

OLD NEWSPRINTQ2

OPTICAL PROPERTIESQ2

PHYSICAL PROPERTIESQ2

Abstract

Enzymes are protein molecules with complex structures that accelerate the biochemical reactions.Activity of these chemical compounds is accomplished at limited range of pH, temperature and concentration. In this study, the effects of different concentrations of cellulose enzyme were investigated on DEINKING of OLD NEWSPRINT. OLD NEWSPRINT (ONP) was repulsed at 5% consistency for 10 minutes in disintegrator with total revolution number of 26500. Enzymatic treatments of recycled ONP pulp were done under constant conditions (10% consistency, treatment time of 15 minutes, pH range of 5-5.5) at different cellulose concentrations of 0.025, 0.05, 0.1 and 0.2% (based on oven-dry waste paper). The optical and PHYSICAL PROPERTIES of the standard paper (60g/m2) made at different concentrations of cellulose were evaluated in comparison with control pulp (untreated ONP pulp with cellulose). Overall, the results achieved by comparison the OPTICAL PROPERTIES of the paper produced indicated that using cellulose in DEINKING of ONP led to increase the brightness and the yellowness and decrease the opacity. The brightness was improved to a maximum level of 47.5 ISO %, but the yellowness was decreased to a minimum level of 11.3 ISO %, while the brightness reduced and the yellowness increased at higher concentrations than 0.05% cellulose. The highest opacity of 99.3 ISO % was achieved using 0.1% cellulose even higher than control pulp. The results gained by comparison the PHYSICAL PROPERTIES of the paper showed that using cellulose resulted in decrease of paper caliper, air resistance and density and improve the freeness of pulp.

Cites

INVESTIGATION ON THE EFFECT OF ENDOGLUCANASE ENZYME TREATMENT TIME AND REFINING TO IMPROVE OCC PULP PROPERTIES

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APA: Copy

AKBARPOUR, IMAN, & RESALATI, HOSSEIN. (2011). THE EFFECT OF DIFFERENT CONCENTRATIONS OF CELLULASE ENZYME ON OPTICAL AND PHYSICAL PROPERTIES OF ONP DEINKED PULP. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 2(1), 1-15. SID. https://sid.ir/paper/184295/en

Vancouver: Copy

AKBARPOUR IMAN, RESALATI HOSSEIN. THE EFFECT OF DIFFERENT CONCENTRATIONS OF CELLULASE ENZYME ON OPTICAL AND PHYSICAL PROPERTIES OF ONP DEINKED PULP. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2011;2(1):1-15. Available from: https://sid.ir/paper/184295/en

IEEE: Copy

IMAN AKBARPOUR, and HOSSEIN RESALATI, “THE EFFECT OF DIFFERENT CONCENTRATIONS OF CELLULASE ENZYME ON OPTICAL AND PHYSICAL PROPERTIES OF ONP DEINKED PULP,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 2, no. 1, pp. 1–15, 2011, [Online]. Available: https://sid.ir/paper/184295/en

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