PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 2, Number 1, 2016
ammonia fibre expansion (AFEX) and extractive ammonia (EA) were tested for the pre- treatment of NW. Hemicellulose isolation, characterization, and the production of xylo- oligosaccharides from the wastewater of a viscose fiber mill, Yuedong Zhang et al , Carbohydrate Polymers , 141. Viscose fibre mills generate a lot of wastewater enriched with hemicelluloses. The structure of the hemicellulose in the wastewater was characterised and the hemicellulose was isolated to produce xylo-oligosaccharides (XOS). Results demonstrated the potential economical and environmental benefits of the process to utilise the byproducts from viscose fibre mills. Regeneration of cello-oligomers via selective depolymerization of cellulose fibers derived from printed paper wastes, Lee Ken Voon et al , Carbohydrate Polymers , 142. Cellulose extracted from printed paper wastes were selectively depolymerised under controlled conditions into cello-oligomers of controllable chain lengths via dissolution in an ionic liquid and in the presence of an acid catalyst. The cellulose depolymerisation process could afford some degree of control on the degree of polymerisation or chain lengths of cello-oligomers formed. Evaluation of pine kraft cellulosic pulps and fines from papermaking as potential feedstocks for biofuel production, Kamila Przybysz Buzała et al , Cellulose , 23 (1). Results of enzymatic hydrolysis of pine kraft cellulosic pulps (Kappa numbers ranging from 17.2 to 86.2) and waste fines from paper production line suggest that they are potential feedstocks for biofuel production. The complete lignin removal from pine wood was not necessary to obtain maximum yields of glucose and other reducing sugars. Advanced treatment of biologically treated medium density fiberboard (MDF) wastewater with Fenton and Fenton enhanced hydrodynamic cavitation process, Cigdem Balcik-Canbolat et al , Journal of Chemical Technology and Biotechnology , 91 (5). Biological treatment processes are often ineffective for the treatment of medium density fibreboard wastewater due the presence of non-biodegradable and refractory compounds. Fenton and Fenton enhanced hydrodynamic cavitation (HC) processes may be cost effective solutions for the treatment of such wastewater. Removals of COD, formaldehyde and colour by Fenton and Fenton enhanced HC processes were investigated in this study. WOOD PANELS Effect of addition of microfibrillated cellulose to urea-formaldehyde on selected adhesive characteristics and distribution in particle board, Eike Mahrdt et al , Cellulose , 23 (1). Several studies demonstrate that the addition of microfibrillated cellulose (MFC) to urea-formaldehyde (UF) wood adhesive improves the mechanical bond strength of wood particle board. In order to elucidate potential underlying mechanisms, the distribution of unmodified UF as well as MFC-modified UF (UF-MFC) in particle board was studied by means of light microscopy. The viscosity and cure characteristic of the adhesive systems were also characterised. Thermophysical properties of medium density fiberboards measured by quasi- stationary method: experimental and numerical evaluation, Eva Troppová et al , Heat and Mass Transfer , online. This paper presents an experimental measurement of thermal properties of medium density fibreboards with different thicknesses (12, 18 and 25 mm) and sample sizes (50 × 50 mm and 100 × 100 mm) by quasi-stationary method. The
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Technical Abstracts
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