نتایج جستجو برای: deinking

تعداد نتایج: 157  

Journal: :Mathematical and Computer Modelling 1997

2014
David Ibarra Concepción Monte Angeles Blanco Angel T. Martínez María J. Martínez

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

enzymatic deinking of xerox printed papers by commercial cellulase from aspergillus niger fungi was investigated. enzymatic treatment was done under constant condition of 0.1 percent enzyme based on oven-dried weight of pulp (102 unit per 100 gram oven-dried pulp), 15 min. treatment time, in four ph levels as 4, 5.7, 8 and 9. then, the effect of ph variation on the appearance and strength prope...

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