Results 11 to 20 of about 91,381 (225)

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   +2 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, Rabi Behroz, Iman Khajeh Ali   +2 more
doaj   +2 more sources

OPTIMIZATION OF ECF BLEACHING AND REFINING OF KRAFT PULPING FROM OLIVE TREE PRUNING

BioResources, 2012
The aim of the present work was to find an optimum kraft pulping process for olive tree pruning (OTP) in order to produce a bleachable grade pulp of Kappa number about 17.
Ana Requejo,, Alejandro Rodríguez,, Jorge L. Colodette,, José L. Gomide,, Luis Jiménez   +4 more
doaj   +2 more sources

Life cycle assessment of Brazilian bleached eucalyptus kraft pulp: Integrating bleaching processes and biogenic carbon impacts

Cleaner Environmental Systems
Bleached eucalyptus kraft (BEK) pulp dominates global pulp production, yet the environmental impacts of its bleaching sequences in Brazil are not fully explored.
Rhonald Ortega, Naycari Forfora, Isabel Urdaneta, Ivana Azuaje, Keren A. Vivas, Ramon E. Vera, Jorge Franco, Ryen Frazier, Camilla Abbati, Daniel Saloni, Hasan Jameel, Richard Venditti, Ronalds Gonzalez   +12 more
doaj   +2 more sources

Genotoxicity and toxicity evaluations of ECF cellulose bleaching effluents using the Allium cepa L. Test

Brazilian Journal of Biology
Toxicity 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

, 2011
Validerat; 20110207 (anonymous)
Demchishina, Maria
openaire   +2 more sources

STUDIES ON XYLANASE AND LACCASE ENZYMATIC PREBLEACHING TO REDUCE CHLORINE-BASED CHEMICALS DURING CEH AND ECF BLEACHING

BioResources, 2012
The biobleaching efficiency of xylanase and laccase enzymes was studied on kraft pulps from wood and nonwood based raw materials employed in the Indian paper industry.
Vasanta V. Thakur,, Rakesh Kumar Jain,, Rajeev Mohan Mathur   +2 more
doaj   +2 more sources

Kraft pulping and ECF bleaching of Eucalyptus globulus pretreated by the white-rot fungus Ceriporiopsis subvermispora - doi: 10.4025/actascitechnol.v34i3.12410

Acta Scientiarum: Technology, 2012
Eucalyptus globulus wood chips were decayed by the lignin-degrading fungus Ceriporiopsis subvermispora as a pretreatment step before kraft pulping. Weight and component losses of wood after the biotreatment were the following: weight (5%), glucans (1.5%),
Claudio Salazar, Regis Teixeira Mendonça, Jaime Baeza, Juanita Freer   +3 more
doaj   +2 more sources

Ozonolysis of Lignin: From Extensive Degradation to Selective Ring-Opening Oxidation. [PDF]

ChemSusChem
Despite its potential as a renewable feedstock, lignin, a major component of plant cell walls and a by‐product of the pulp and paper industry, has long been underutilized. Historically, pulp mills employed ozonolysis, a powerful oxidative process, to delignify cellulosic fibers and break down lignin.
Alexakis AE, Sipponen MH.
europepmc   +2 more sources

Bio-Inspired Self-Assembly of Enzyme-Micelle Systems for Semi-Artificial Photosynthesis. [PDF]

Angew Chem Int Ed Engl
This study introduces a bio‐hybrid assembly inspired by lipid‐protein interactions in nature by utilizing photosensitized surfactants that self‐assemble into light‐absorbing micellar scaffolds capable of interfacing with hydrogenases and formate dehydrogenases. This semi‐artificial approach enabled benchmark turnover numbers for solar H2 production and
Liu Y, Rodríguez-Jiménez S, Song H, Pannwitz A, Kim D, Coito AM, Manuel RR, Webb S, Su L, Bonke SA, Milton RD, Pereira IAC, Bonnet S, Hammarström L, Reisner E.   +14 more
europepmc   +3 more sources