Results 201 to 210 of about 91,381 (225)

Using bleaching stage models for benchmarking hardwood ECF bleach plants

TAPPI Journal, 2023
Steady-state models estimated the performance of the D0(EOP)D1 bleach sequence at two mixed hardwood bleach plants in the southern United States. At Mill 1, the full sequence’s chlorine dioxide charge that brightens the pulp to ~84% ISO was monitored for two weeks.
openaire   +1 more source

Towards closed water systems in chemical pulp mills: Evaporation of acidic filtrate from ECF bleaching with high chloride content

TAPPI Journal
In modern bioproducts mills utilizing elemental chlorine-free (ECF) bleaching, the bleaching process is the primary effluent source. The pulp bleaching typically generates 10 m³/a.d. metric ton of acidic filtrate.
Hanna Seppalainen, Laura Heine, K. Ala-Kaila, O. Dahl   +3 more
semanticscholar   +1 more source

Migration of wood extractives in the fiberline of birch kraft pulp mill with ECF bleaching.

Bioresource Technology
Pressure to decrease freshwater consumption at pulp mills is causing an increase in deposit problems, as higher probability of scaling and precipitation is contributed to the increasing concentrations of these compounds in the process streams.
L. Leskinen, E. Melnik, E. Y. Yee Lim, Mery Lempinen, Nelli Kaskirinne, Simo Levan, Hanna Romppanen, Aaro Uusitalo, Jinze Dou   +8 more
semanticscholar   +1 more source

Synergy of adsorption-photocatalysis and enriched surface oxygen vacancies over lignin-biochar/Bi2MoO6 nanocomposites for organic pollutant removal and bamboo ECF bleaching effluent treatment

Industrial crops and products (Print), 2023
Qing-mei Tian, Qiang Yang, Wenliang Guo, Xiang Li, G. Fang, Yang Ge, Xing Liu, Hang Yin, Aixiang Pan, Naixu Li   +9 more
semanticscholar   +1 more source

Environmental Aspects of ECF vs. TCF Pulp Bleaching

2020
This paper provides an update on the environmental aspects of elemental chlorine free (ECF) vs. totally chlorine free (TCF) pulp bleaching with an emphasis on literature published during the last two years. In general, there is no evidence of any adverse effects related to the use of chlorine dioxide, i.e., the trace amounts of chlorinated organics ...
Jens Folke, Lars Renberg, Neil McCubbin
openaire   +1 more source

Treatment of an ECF bleaching effluent with white-rot fungi in an air-lift bioreactor

Environmental Earth Sciences, 2014
É. Souza, J. V. B. Souza, F. T. Silva, T. Paiva   +3 more
semanticscholar   +1 more source

ECF and TCF bleaching

2005
openaire   +1 more source

Response of Eucalyptus camaldulensis and Acacia mangium kraft pulp in different ECF bleaching options

Wood Science and Technology, 2011
Md. Rezaul Karim, M. Islam, R. Malinen
semanticscholar   +1 more source

Carbohydrate-derived chlorinated compounds in ECF bleaching of hardwood pulps: formation, degradation, and contribution to AOX in a bleached kraft pulp mill.

Environmental Science and Technology, 2003
C. Freire, A. Silvestre, C. P. Neto
semanticscholar   +1 more source

Characterization of high molecular mass material in ECF and TCF bleaching liquors by Py-GC/MS with and without TMAH methylation

Journal of Analytical and Applied Pyrolysis, 2006
J Knuutinen, Jaakko Paasivirta, Sirpa Hervé   +2 more
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