scholarly journals Selected Grass Plants as Biomass Fuels and Raw Materials for Papermaking, Part II. Pulp and Paper Properties

BioResources ◽  
2015 ◽  
Vol 10 (4) ◽  
Author(s):  
Dariusz Danielewicz ◽  
Barbara Surma-Ślusarska ◽  
Grzegorz Żurek ◽  
Danuta Martyniak ◽  
Magdalena Kmiotek ◽  
...  
Keyword(s):  
Raw Materials ◽  
Pulp And Paper ◽  
Biomass Fuels ◽  
Paper Properties

Effect of Xylanase Modification on Pulp and Paper Properties of Masson Pine Mechanical Pulp

2011 ◽  
Vol 396-398 ◽  
pp. 1375-1378
Author(s):  
Qing Luo ◽  
Xin Ping Li ◽  
Ye Liu ◽  
Jun Hua Liu
Keyword(s):  
Contact Angle ◽  
Raw Materials ◽  
Dynamic Contact Angle ◽  
Dynamic Contact ◽  
Pulp And Paper ◽  
The Other ◽  
Utilization Rate ◽  
Paper Properties ◽  
Masson Pine ◽  
Mechanical Pulp

In this paper, the effects of xylanase modification on pulp and paper properties of masson pine mechanical pulp were investigated. After the modification, the Zeta potential of pulp and the cationic demand of whitewater increased，the drainage property of the pulp increased obviously. At the same time, the amount of shives decreased, it showed that using bio-enzyme could improve the utilization rate of raw materials as well as reduces the energy consumption of the mechanical pulp. On the other hand, xylanase modification had great effect on the dynamic contact angle, with the dosage of xylanase increased, the contact angle of the pulp first increased and then reduced.

Water Pollution Abatement in Small Paper Mills in India

1988 ◽  
Vol 20 (1) ◽  
pp. 37-48 ◽  
Author(s):  
L. Panneerselvam
Keyword(s):  
Water Pollution ◽  
Wastewater Treatment ◽  
Raw Materials ◽  
Pollution Abatement ◽  
Pulp And Paper ◽  
Operating Costs ◽  
Small Scale ◽  
Pulp And Paper Mills ◽  
Paper Mills ◽  
Recovery System

In order to reduce the demand for the forest based raw materials by the organised industrial sectors like the large integrated pulp and paper mills, the Government of India started promoting several small-scale pulp and paper mills based on non-wood agricultural residue raw materials. However promotion of these small mills has created another environmental problem i.e. severe water pollution due to non-recovery of chemicals. Because of the typical characteristics like high silica content etc. of the black liquor produced and the subsequent high capital investment needed for a recovery system, it is not economically feasible for the small Indian mills to recover the chemicals. While the quantity of wastewater generated per tonne of paper produced by a small mill is same as from a large integrated pulp and paper mill with a chemical recovery system, their BOD load is four times higher, due to non recovery of chemicals. However the existing wastewater disposal standards are uniform for large and small mills for e.g. 30 mg BOD/l. To meet these standards, the small mills have to install a capital intensive wastewater treatment plant with heavy recurring operating costs. Therefore the feasible alternative is to implement various pollution abatement measures, with the objective of not only reducing the fibre/chemical loss but also to reduce the investment and operating costs of the final wastewater treatment system. To illustrate this approach, a case study on water pollution abatement and control in a 10 TPD mill, will be discussed.

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 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

The pulp and paper properties ofSirex noctilioinfested and fire-damagedthermomechanically pulped, South African grownPinus patula

2010 ◽  
Vol 72 (3-4) ◽  
pp. 173-179
Author(s):  
M du Plessis ◽  
N J le Roux ◽  
S Gardner-Lubbe ◽  
J PJ Swart ◽  
T Rypstra
Keyword(s):  
South African ◽  
Pulp And Paper ◽  
Paper Properties

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 Studies on Variation of the Pulp and Paper Properties by Aging

1966 ◽  
Vol 20 (10) ◽  
pp. 549-555
Author(s):  
Tokuichiro Yamaguchi
Keyword(s):  
Pulp And Paper ◽  
Paper Properties

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.

Sign in / Sign up

Export Citation Format

Share Document