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.

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.

Cellulose ◽  
2019 ◽  
Author(s):  
María Eugenia Eugenio ◽  
David Ibarra ◽  
Raquel Martín-Sampedro ◽  
Eduardo Espinosa ◽  
Isabel Bascón ◽  
...  

2020 ◽  
Vol 24 (137) ◽  
pp. 88-97
Author(s):  
F.Kh. Khakimova ◽  
◽  
K.A. Sinyaev ◽  
R.R. Khakimov ◽  
O.A. Noskova ◽  
...  

2021 ◽  
Vol 2094 (4) ◽  
pp. 042063
Author(s):  
D E Zyryanov ◽  
N S Reshetova ◽  
R A Marchenko

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.


2020 ◽  
Vol 1 (2) ◽  
pp. 1-9

The pulp and paper industry is advanced rapidly since there are many types of raw materials containing cellulose fibres that could be used to produce different kinds of paper by different methods in the mills. In Malaysia, one of the abundant non-wood materials for pulp and paper production is empty fruit bunch (EFB) from the oil palm. The EFB is the main fibrous residue and natural fibre which has promising potential as an alternative to replace woody materials. This study provides insight into the use of EFB as an alternative non-wood fibre resource in pulp and paper making. The potential of oil palm EFB transformed into valuable fibre material was elaborated. In this review, detailed information on the properties of EFB for pulp and paper making process to identify the chemical composition and fibre morphology were discussed. Recent advanced applications including nanocellulose from EFB, polymeric hydrogel, and antimicrobial papers were discussed to demonstrate high commercialization for pulp and paper technology. The three-dimensional (3D) printing technique has been employed due to the high complexity of paper products. The future trends and challenges regarding the use of EFB in pulp and paper making were also reviewed. This study demonstrated that the EFB has met the demand of the market chains as a potential raw material in paper making and manufacturing.


Cellulose is the most common of all naturally occurring organic compounds belonging to the carbohydrate group. It makes up at least one-third of all the vegetable matters in the world. Virgin soft and hardwoods used as the main source of cellulose for raw materials of paper production. These can be replaced by jute plant to a great extend as it is considered as one of the most promising alternatives. Pulp and paper production on a huge amount from jute can increase jute usage and thus a vast quantity of jute will be consumed by a single product which will eventually help revitalize the jute sector of Bangladesh. So the study was conducted to use jute, an alternative to non-wood fibre to get the paper pulp and pulp products like cellulose derivatives through an easily adaptable process. The experimental processes are outlined. The physicomechanical properties of handmade papers are estimated by standard procedure. The maximum whiteness of the paper sheet is 76.70%, which is almost similar to offset paper. The basic weight of papers was estimated that ranges from 180 to 340 gsm. The study indicates that these hand-made papers can be used for making eco-friendly paper bags, packaging material which will be a suitable alternative to non-biodegradable plastic, a cause of ecological and environmental pollution.


2016 ◽  
Vol 67 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Nazan Comlekcioglu ◽  
Ahmet Tutus ◽  
Mustafa Cicekler ◽  
Asuman Canak ◽  
Gulsen Zengin

2017 ◽  
Vol 156 ◽  
pp. 184-193 ◽  
Author(s):  
A. Gonzalo ◽  
F. Bimbela ◽  
J.L. Sánchez ◽  
J. Labidi ◽  
F. Marín ◽  
...  

Les/Wood ◽  
2021 ◽  
Vol 70 (2) ◽  
Author(s):  
Kojo Agyapong Afrifah ◽  
Enoch Adjei-Mensah

Alstonia boonei, an abundant lesser utilized species within the West African Subregion, was evaluated as an alternative raw material for pulp and paper production. The basic density (BD), fibre characteristics [fibre length (FL), fibre diameter (FD), lumen diameter (LD) and wall thickness (WT)], derived anatomical indices [Flexibility Ratio (FR), Slenderness Ratio (SR), Rigidity Coefficient (RC), Luce’s Shape Factor (LSF), Solids Factor (SF) and Runkel Ratio (RR)] and chemical composition (lignin, holocellulose, 1% NaOH solubility and ash contents) of A. boonei were studied to evaluate variation along the trunk (base, middle and top portions) and ascertain its suitability for pulp and paper production. Significant variations were observed in the density and fibre characteristics along the trunk of the tree. Although the FD was large, the observed adequate FL, thin-wall and large LD implied easy beating of fibres and manufacture of dense, smooth and strong papers. The favourable SF, RR, FR, RC, and LSF values obtained for the fibres would produce papers with suitable burst and tearing strengths and folding endurance. Chemically the lower lignin (< 30%), ash and 1% NaOH solubility and the high holocellulose contents of A. boonei, will generate a higher pulp yield. A. boonei although a low-density species, will be desirable for pulp and paper production.


Author(s):  
John Odhiambo Otieno ◽  
Treezer Nelly Okumu ◽  
Morelly Adalla ◽  
Fredrick Ogutu ◽  
Boniface Oure

The pulp and paper industry is primarily dependent on fibrous wood for pulp and paper production. However, this over-dependence on fibrous wood poses serious environmental challenges such as the diminishing of the fibrous wood stocks, deforestation, emission of greenhouse gases, and global warming. Therefore, to mitigate these environmental challenges associated with its utilization for paper and pulp production, other sustainable raw material sources can also be considered for the production of paper and pulp. There are enormous benefits associated with the utilization of non-wood fibres as an alternative and sustainable raw materials source for the production of paper and pulp. These benefits have in the recent past prompted millers in China, India, Brazil, and the USA to consider the utilization of non-wood fibres in paper and pulp production. In Kenya, the pulp and paper industry is very much dependent on fibrous wood for production and the industry is yet to fully embrace the utilization of nonwood fibres for paper and pulp production. Further, the dependence on fibrous wood has contributed significantly to the decline of paper pulp and paper production, deforestation, and rise in paper importations due to insufficient raw material supplies. The importation of paper and pulp products has further led to the collapse of the paper industry in Kenya. The sector stands a chance of revival and vibrancy through the utilization of the abundant agricultural residues and feedstocks lying in the agricultural fields across the country. Similar experiences elsewhere have proved that the abundance of agricultural waste can be utilized for the production of paper and pulp due to their excellent fibre content for specialty papers, and easy pulpability. The agricultural residues are therefore considered a quintessential alternative and sustainable source of raw materials for the pulp and paper industry. Moreover, their utilization will mitigate environmental impacts such as deforestation, climate change, and pollution .


2004 ◽  
Vol 58 (5) ◽  
pp. 201-212
Author(s):  
Milorad Krgovic ◽  
Slobodan Jovanovic

During 1994 278 million tons of paper were produced worldwide, while around 330 million tons were produced in 2002. The forecast for paper production in 2010 is 420 million tons. From these data, it may be concluded that the paper production industry, which exists for around 2000 years, is still a very attractive industrial branch. This work represents the conditions in the production of the major and auxiliary raw materials for paper production, as well as paper production in the World and production forecasts until 2010. It was indicated that the fraction of secondary fibers obtained from recycled paper increases every year in regard primary fibers. In 2010 secondary fibers will be the major source of primary raw materials for paper production in the World. It was pointed out that in the last fifteen years the quantity of paper produced during one season grew rapidly. This growth was achieved by advance stock preparation of paper and increased velocity of the paper machine and the width web of the produced paper. Activities regarding environmental protection undertaken by manufacturers of paper and fibers are presented.


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