ENZYMATIC VERSUS CHEMICAL DEINKING OF OLD NEWSPAPER

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AKBARPOUR I.; RESALATI H.; SARAEIAN A.R.

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Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2010 | Volume:25 | Issue:2 (33) Page(s): 223-233

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Information Journal Paper

Title

ENZYMATIC VERSUS CHEMICAL DEINKING OF OLD NEWSPAPER

Author(s)

AKBARPOUR I. | RESALATI H. | SARAEIAN A.R. | Issue Writer Certificate

Keywords

DEINKINGQ2

OLD NEWSPAPERQ2

CELLULASE ENZYMEQ1

OPTICAL PROPERTIESQ1

PHYSICAL PROPERTIESQ2

Abstract

In this study, DEINKING of OLD NEWSPAPER by chemical and enzymatic methods was investigated. Chemical treatment was conducted using chemicals at different times of 10, 20 and 30 minutes, consistency of 10%, temperature of 50±1oC along with washing, flotation and combination of washing/flotation. While, enzymatic treatment was accomplished at different concentrations of 0.025, 0.05, 0.1 and 0.2% of CELLULASE ENZYME (on the basis of oven dried waste paper), pH range of 5-5.5, different times of 10, 15 and 20 minutes, consistency of 10%, temperature of 50±1oC along with washing. The results of comparing optimal chemical and enzymatic treatments showed that, deinked pulp by chemical method provided higher brightness and yellowness. Also, deinked pulp by chemical method had provided papers with higher bulk, higher caliper as well as higher air resistance.

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References

EFFECT OF ONP TYPE ON DENIABILITY

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APA: Copy

AKBARPOUR, I., RESALATI, H., & SARAEIAN, A.R.. (2010). ENZYMATIC VERSUS CHEMICAL DEINKING OF OLD NEWSPAPER. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 25(2 (33)), 223-233. SID. https://sid.ir/paper/109696/en

Vancouver: Copy

AKBARPOUR I., RESALATI H., SARAEIAN A.R.. ENZYMATIC VERSUS CHEMICAL DEINKING OF OLD NEWSPAPER. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2010;25(2 (33)):223-233. Available from: https://sid.ir/paper/109696/en

IEEE: Copy

I. AKBARPOUR, H. RESALATI, and A.R. SARAEIAN, “ENZYMATIC VERSUS CHEMICAL DEINKING OF OLD NEWSPAPER,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 25, no. 2 (33), pp. 223–233, 2010, [Online]. Available: https://sid.ir/paper/109696/en

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