Characteristics of chlorinated components formed during ECF bleaching
2009Ohra-aho, Taina +2 more
openaire +1 more source
ECF AND TCF BLEACHING OF SECONDARY FIBER PULP [PDF]
Ciência Florestal, 2009 In this study, ECF and TCF bleaching processes were evaluated for the bleaching of a deinked mixed office waste (MOW) pulp sample produced in a pilot plant. The sample was bleached by all processes to a target brightness of 78 % ISO minimum.
Gustavo Ventorim +3 more
doaj +3 more sources
Enzymes improve ECF bleaching of pulp [PDF]
BioResources, 2006 The delignification efficiency of different laccase enzymes was examined on the eucalyptus Kraft pulp. The laccase enzyme from Trametes versicolor showing the highest delignification efficiency was selected and used in the elemental chlorine-free ...
Lachenal, D. +5 more
doaj +3 more sources
Investigation and Comparison of Bagasse Soda Pulps Properties Bleached with Total Chlorine Free (TCF) and Elemental Chlorine Free (ECF) Stages [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2017 The objective of this research was accomplished on the effects of total chlorine free (TCF) and elemental chlorine free (ECF) bleaching on optical and mechanical properties of bagasse soda pulps.
Ramin Vaysi, Ali reza Bagheri
doaj +3 more sources
The Effect of ECF Bleaching on Optical and Mechanical Properties of Bagasse Soda Pulp [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2016 This study and it aim was accomplished on the effect of ECF bleaching on optical and mechanical properties of bagasse soda pulp. For this purpose, some soda unbleached pulps were randomly selected from Pars mill. Then these pulps were bleached with OD(Ep)
Ramin Veisi +2 more
doaj +3 more sources
Enzyme and Alkali-Aided ECF Bleaching of Kraft Bamboo Pulp [PDF]
BioResources, 2015 Unbleached kraft bamboo pulp was pretreated by a xylanase and laccase (X/L) treatment, as well as a joint treatment of X/L and alkali, prior to element chlorine free (ECF) bleaching.
Yingying Du +4 more
doaj +2 more sources
Enhancement of TCF and ECF Bleaching Processes by Urea and Enzymatic Pretreatments: Optimization of a Laccase-Mediator Pretreatment [PDF]
BioResources, 2015 A TCF bleaching sequence consisting of a urea pretreatment stage (U), laccase-mediator system stage (L), alkaline extraction stage (E), and hydrogen peroxide bleaching stage (P) was used to study the effect of five independent variables on the dependent ...
Luisa L. García-Fuentevilla +4 more
doaj +2 more sources
Life cycle assessment of Brazilian bleached eucalyptus kraft pulp: Integrating bleaching processes and biogenic carbon impacts [PDF]
Cleaner Environmental SystemsBleached eucalyptus kraft (BEK) pulp dominates global pulp production, yet the environmental impacts of its bleaching sequences in Brazil are not fully explored.
Rhonald Ortega +12 more
doaj +2 more sources
Genotoxicity and toxicity evaluations of ECF cellulose bleaching effluents using the Allium cepa L. Test [PDF]
Brazilian Journal of BiologyToxicity and genotoxicity tests were performed on root cells of Allium cepa in order to evaluate wastewater quality following an ECF cellulose bleaching process.
O. Roa, MC. Yeber, W. Venegas
doaj +2 more sources
Soft ECF-bleaching of softwood pulp [PDF]
, 2011 Validerat; 20110207 (anonymous)
Demchishina, Maria
openaire +2 more sources