Fractionation of process water in thermomechanical pulp mills.

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Fractionation of process water in thermomechanical pulp mills. / Persson, Tobias; Krawczyk, Holger; Nordin, Anna-Karin; Jönsson, Ann-Sofi.

In: Bioresource Technology, Vol. 101, No. 11, 2010, p. 3884-3892.

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Persson, Tobias ; Krawczyk, Holger ; Nordin, Anna-Karin ; Jönsson, Ann-Sofi. / Fractionation of process water in thermomechanical pulp mills. In: Bioresource Technology. 2010 ; Vol. 101, No. 11. pp. 3884-3892.

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TY - JOUR

T1 - Fractionation of process water in thermomechanical pulp mills.

AU - Persson, Tobias

AU - Krawczyk, Holger

AU - Nordin, Anna-Karin

AU - Jönsson, Ann-Sofi

PY - 2010

Y1 - 2010

N2 - In this work process water from a thermomechanical pulp mill was divided into five fractions by filtration and membrane filtration. Suspended matter was mainly isolated in the retentate from the drum filter, extractives in the microfiltration retentate, hemicelluloses in the ultrafiltration retentate and lignin in the nanofiltration retentate. The final water fraction was of fresh water quality. For each tonne of pulp produced, about 10kg of suspended matter, more than 0.3kg of extractives, 11kg of hemicelluloses and 8kg of aromatic compounds (lignin) could be recovered from the drum filtration retentate, the microfiltration retentate, the ultrafiltration retentate and the nanofiltration retentate, respectively. About 40% of the treated process water could be recovered as fresh water.

AB - In this work process water from a thermomechanical pulp mill was divided into five fractions by filtration and membrane filtration. Suspended matter was mainly isolated in the retentate from the drum filter, extractives in the microfiltration retentate, hemicelluloses in the ultrafiltration retentate and lignin in the nanofiltration retentate. The final water fraction was of fresh water quality. For each tonne of pulp produced, about 10kg of suspended matter, more than 0.3kg of extractives, 11kg of hemicelluloses and 8kg of aromatic compounds (lignin) could be recovered from the drum filtration retentate, the microfiltration retentate, the ultrafiltration retentate and the nanofiltration retentate, respectively. About 40% of the treated process water could be recovered as fresh water.

U2 - 10.1016/j.biortech.2009.12.142

DO - 10.1016/j.biortech.2009.12.142

M3 - Article

VL - 101

SP - 3884

EP - 3892

JO - Bioresource Technology

T2 - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

IS - 11

ER -