A PRELIMINARY STUDY OF TOXICITY BY BIOASSAY OF THE WASTES OF PULP AND PAPER PRODUCTION UNITS

2006 ◽  
pp. 307-316
Author(s):  
Nicolas VENETSANEAS ◽  
Joan ILIOPOULOU-GEORGUDAKI
Keyword(s):  
Pulp And Paper ◽  
Paper Production ◽  
Preliminary Study

scholarly journals Waste management from pulp and paper production in the European Union

2009 ◽  
Vol 29 (1) ◽  
pp. 293-308 ◽  
Author(s):  
M.C. Monte ◽  
E. Fuente ◽  
A. Blanco ◽  
C. Negro
Keyword(s):  
European Union ◽  
Waste Management ◽  
Pulp And Paper ◽  
The European Union ◽  
Paper Production

scholarly journals Deriving Wealth from the Dry Matter of Some Under-Utilised Plant Parts

2020 ◽  
Vol 8 (02) ◽  
pp. 293-299
Author(s):  
Otoide J. E.* ◽  
Ihinmikaiye, S. O. ◽  
Otoide, T. F.
Keyword(s):  
Carica Papaya ◽  
Raw Materials ◽  
Slenderness Ratio ◽  
Pulp And Paper ◽  
Panicum Maximum ◽  
Wealth Creation ◽  
Plant Materials ◽  
Suitable Alternative ◽  
Paper Production ◽  
Production Industry

The possibility of creating wealth in pulp and paper industry from the underutilized dry matters of the leaf sheaths of the pseudostem (Musa paradisiaca and M. sapientum), leaf stalk (Carica papaya) and stems (Panicum maximum and Andropogon tectorum) have been established from the anatomical parameters and indexes (fibre lengths and diameters, lumen width, cell wall thickness, Runkels ratio, flexibility coefficient (%) and slenderness ratio) of the fibres using standard procedures. Results obtained revealed that the Runkels ratio of the fibres in the five dry matters were 0.60, 0.44, 0.40, 0.87 and 0.93 for Musa sapientum, M. paradisiaca, Carica papaya, Panicum maximum and Andropogon tectorum respectively. These values, each been less than 1 (˂ 1) recommends each of the dry matters as suitable alternative source of raw materials for pulp and paper production industry. It was recommended that these dry plant materials be henceforth harnessed as alternative sources of raw materials for pulp and paper production industry as another means of wealth creation instead of allowing them to waste and cause environmental nuisance.

scholarly journals INFLUENCES OF LOCAL RESISTANCES OF TECHNOLOGICAL CHANNELS OF PULP AND PAPER PRODUCTION ON THE OPERATION OF VORTEX FLOW METERS OF WATER AND WATER SUSPENSIONS OF LOW CONCEN-TRATIONS

2019 ◽  
pp. 307-314
Author(s):  
Iuriy Davydovich Alashkevich ◽  
Mikhail Semenovich Lur’e ◽  
Ol'ga Mikhaylovna Lur’e ◽  
Aleksandr Sergeyevich Frolov
Keyword(s):  
Strouhal Number ◽  
Measurement Range ◽  
Pulp And Paper ◽  
Hydrodynamic Resistance ◽  
Experiment Planning ◽  
Straight Section ◽  
Local Resistance ◽  
Paper Production ◽  
Water Suspensions ◽  
Low Concentrations

The question of the features of operation of submersible vortex flowmeters of water and water suspensions of low concentrations in pulp and paper production, which are installed in process pipelines with local hydraulic resistance, is considered. It is shown that with an insufficient straight section after local resistance, an additional error appears, which appears due to the influence of local resistance (transition or retraction) on the symmetry of the velocity diagram in front of the device. This error arises due to a change in the Strouhal number (Sh) and is related to the measurement method. The Strouhal number begins to depend on both the distance to the local resistance and the fluid flow rate. Identify this relationship and is dedicated to this work. Recommendations on the length of straight pipeline sections in front of the flow meter have been developed, which can be significantly reduced by limiting the range of operating flow rates. The studies were carried out by the method of numerical simulation of hydrodynamic processes with subsequent processing of the results by the method of experiment planning. The dependence of the number Sh on the length of the relative diameter of the pipeline L/ for hydrodynamic resistance in the form of a transition is presented. This error shows that the measurement error is within 2% already with a straight section in front of the flowmeter equal to 5–7 diameters. The response surface for pipe bends (rotations) is considered at 90º from which it follows that while maintaining the length of the straight section within 5–7 pipe diameters, it is necessary to narrow the measurement range of the instruments 2.5 times.

A Study on Fiber Characteristics of Melocanna baccifera (Roxb.) Kurz for the Suitability of Pulp and Paper Production

2016 ◽  
Vol 39 (1) ◽  
pp. 27-30
Author(s):  
Shardesh Chaurasia ◽  
Satya Singh ◽  
Sanjay Naithani
Keyword(s):  
Pulp And Paper ◽  
Paper Production ◽  
Fiber Dimensions

Fiber dimensions of Melocanna baccifera was examined to assess their suitability for pulp and paper production. Fifty mature culms of M. baccifera were obtained from Forest of Silchar, Cachar District of Assam, India. Samples taken from the top, middle and basal portions were thoroughly mixed and used in the study.

scholarly journals Alternative Raw Materials for Pulp and Paper Production in the Concept of a Lignocellulosic Biorefinery

Cellulose ◽  
2019 ◽  
Author(s):  
María Eugenia Eugenio ◽  
David Ibarra ◽  
Raquel Martín-Sampedro ◽  
Eduardo Espinosa ◽  
Isabel Bascón ◽  
...  
Keyword(s):  
Raw Materials ◽  
Pulp And Paper ◽  
Paper Production

PULP AND PAPER PRODUCTION DROPS

1950 ◽  
Vol 28 (1) ◽  
pp. 23-24
Author(s):  
HARRY F. LEWIS
Keyword(s):  
Pulp And Paper ◽  
Paper Production

scholarly journals Young thin wood from sanitation cuttings as stockpile of raw materials for pulp and paper production

2020 ◽  
Vol 24 (137) ◽  
pp. 88-97
Author(s):  
F.Kh. Khakimova ◽  
◽  
K.A. Sinyaev ◽  
R.R. Khakimov ◽  
O.A. Noskova ◽  
...  
Keyword(s):  
Raw Materials ◽  
Pulp And Paper ◽  
Paper Production

scholarly journals Improving the quality parameters of a fibrous pulp in the process of knife milling

2021 ◽  
Vol 2094 (4) ◽  
pp. 042063
Author(s):  
D E Zyryanov ◽  
N S Reshetova ◽  
R A Marchenko
Keyword(s):  
Quality Indicators ◽  
Raw Materials ◽  
Quality Parameters ◽  
Pulp And Paper ◽  
Modern World ◽  
High Quality ◽  
Paper Production ◽  
Production Technologies

Abstract Pulp and paper products in the modern world are used in a variety of types and areas, due to which the issue of improving paper production technologies is relevant. The article presents the results of grinding fibrous semi-finished products using the knife method. A disc mill with an original knife set was used as the unit under study. For the most effective modes of grinding were selected to obtain raw materials with high quality indicators.

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