Potential applications of waste lignin from the paper and pulp industry in Viet Nam

The conversion of waste lignin from the paper and pulp industry is a potential process to produce chemicals and materials in the industry. With the development and the demand for the pulp and paper industry, the amount of waste lignin will increase remarkably. In Vietnam, the forest tree for the pulp industry is abundant, and the pulp industry has increased in recent years. In parallel, the government planned to develop the material resource and high-tech factories for this industry. In this work, we summarized the pulp and paper industry in Vietnam, then suggest the potential applications of waste lignin in several valuable products.

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Classification of lipolytic enzymes and their biotechnological applications in the pulping industry

Canadian Journal of Microbiology ◽

10.1139/cjm-2016-0447 ◽

2017 ◽

Vol 63 (3) ◽

pp. 179-192 ◽

Cited By ~ 30

Author(s):

L. Ramnath ◽

B. Sithole ◽

R. Govinden

Keyword(s):

Fatty Acids ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

Biotechnological Applications ◽

Lipolytic Enzymes ◽

Prevention And Treatment ◽

Potential Applications ◽

Microbial Sources

In the pulp and paper industry, during the manufacturing process, the agglomeration of pitch particles (composed of triglycerides, fatty acids, and esters) leads to the formation of black pitch deposits in the pulp and on machinery, which impacts on the process and pulp quality. Traditional methods of pitch prevention and treatment are no longer feasible due to environmental impact and cost. Consequently, there is a need for more efficient and environmentally friendly approaches. The application of lipolytic enzymes, such as lipases and esterases, could be the sustainable solution to this problem. Therefore, an understanding of their structure, mechanism, and sources are essential. In this report, we review the microbial sources for the different groups of lipolytic enzymes, the differences between lipases and esterases, and their potential applications in the pulping industry.

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Simultaneous optimization of multiple performance characteristics in coagulation–flocculation process for Indian paper industry wastewater

Water Science & Technology ◽

10.2166/wst.2012.304 ◽

2012 ◽

Vol 66 (6) ◽

pp. 1231-1238 ◽

Cited By ~ 5

Author(s):

R. Saraswathi ◽

M. K. Saseetharan

Keyword(s):

Taguchi Method ◽

Process Parameters ◽

Paper Industry ◽

Oxygen Demand ◽

Simultaneous Optimization ◽

Pulp Industry ◽

Optimization Of Process Parameters ◽

Paper And Pulp ◽

Paper And Pulp Industry ◽

Flocculation Process

The goal of this study was to optimize the coagulation–flocculation process in wastewater generated from the paper and pulp industry using a grey relational analysis (GRA)-based Taguchi method. Process parameters included types and doses of natural coagulants and coagulant aid, and pH. To track the efficiency of the treatment process, the following responses were chosen for optimization: chemical oxygen demand (COD), total dissolved solids (TDS) and turbidity of wastewater, alone or in combination or all together. Analysis of variance showed that the type and dose of the coagulant aid were the most significant parameters, followed by pH and the dose of the coagulant; the type of coagulant used was found to be insignificant in the coagulation–flocculation process. Optimization of process parameters to achieve lower turbidity and greater removal of COD and TDS was verified in a separate confirmatory experiment, which showed improvements in COD and TDS removal and a decrease in turbidity of 8.2, 6.35 and 26.17%, respectively, with the application of the Taguchi method and GRA.

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Pulpmill pollution and public perception

The Forestry Chronicle ◽

10.5558/tfc68492-4 ◽

1992 ◽

Vol 68 (4) ◽

pp. 492-495

Author(s):

P. K. Owusu–Gyima ◽

D. N. Roy

Keyword(s):

Public Perception ◽

Paper Industry ◽

Pulp Mill ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

Experimental Animals ◽

Abatement Strategies ◽

Paper And Pulp ◽

Dioxin Exposure ◽

Risk Potential

This paper reviews the risk potential of pulp mill pollutants to humans, risk abatement strategies adopted by the pulp and paper industry, and their socio-enviro-economic implications.The deleterious impact of dioxin-exposure on experimental animals is well documented worldwide. Though their impact on humans is yet to be assessed, it is part of today's conventional widsom that the reduction and possible elimination of the major sources of dioxin would be, pragmatically and economically, more environmentally acceptable. Key words: Dioxin, furan, PCDDs, PCDFs, bleaching, paper and pulp, oxygen, bleach, BOD, COD, wood.

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An Analysis of the Eco-Innovation Mechanism and Policies in the Pulp and Paper Industry Based on Coupled Game Theory and System Dynamics

Sustainability ◽

10.3390/su10103482 ◽

2018 ◽

Vol 10 (10) ◽

pp. 3482 ◽

Cited By ~ 2

Author(s):

Lin MA ◽

Jiayu HU

Keyword(s):

Game Theory ◽

System Dynamics ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

The Government ◽

Local Ecosystem ◽

The Impact ◽

Innovation Mechanism ◽

The Competitiveness Of Enterprises

The environment is the basis for the living and development of the human, and eco-innovation is the key driver of new economic growth. However, for some underdeveloped regions in China, it is still a challenge for the local government to get a balance between the goals of economic and environment. The paper selects the pulp and paper industry, which creates tremendous pollution to the environment and is closely related to the daily life. According to the particular characteristics of pulp and paper industry in Sichuan Province, the industry of pulp and paper of bamboo is redesigned to improve the local ecosystem, while increasing the income of local farmers. From the perspective of game theory, the relationships between the government, the enterprise, and the farmers are analyzed. The result shows that government increases the subsidy and penalty to the enterprise, which can increase the investment in eco-innovation, enhancing the competitiveness of enterprises and raising the income of farmers. Moreover, it can also improve the ecologically fragile areas by the utilization of bamboo park. In addition, in this paper, a system dynamics model is proposed to explore the impact of different policies on the environment. The results show that increasing the subsidy is a more efficient way to protect the environment, and is one of the important drivers to eco-innovation in some underdeveloped regions in China.

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Agricultural Residues as an Alternative Source of Fibre for the Production of Paper in Kenya-A Review

Asian Journal of Chemical Sciences ◽

10.9734/ajocs/2021/v10i119084 ◽

2021 ◽

pp. 22-37

Author(s):

John Odhiambo Otieno ◽

Treezer Nelly Okumu ◽

Morelly Adalla ◽

Fredrick Ogutu ◽

Boniface Oure

Keyword(s):

Raw Materials ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Agricultural Residues ◽

Pulp And Paper ◽

Raw Material ◽

Paper Production ◽

Wood Fibres ◽

Paper And Pulp ◽

Pulp Production

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 .

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Non-wood fibers as raw material for pulp and paper industry

Nordic Pulp & Paper Research Journal ◽

10.1515/npprj-2019-0064 ◽

2020 ◽

Vol 35 (2) ◽

pp. 215-230 ◽

Cited By ~ 2

Author(s):

Essam S. Abd El-Sayed ◽

Mohamed El-Sakhawy ◽

Mohamed Abdel-Monem El-Sakhawy

Keyword(s):

Raw Materials ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

Raw Material ◽

Chemical Recovery ◽

High Tech ◽

Wood Fibers ◽

Plant Fibers ◽

Materials Used

AbstractPulp and paper industry in the world have been growing fast. As a result, there has been a massive request for pulp and paper raw materials. The raw materials used in papermaking can be classified into three groups: wood, non-wood, and recycled wastepaper. The Non-wood raw material is an important fiber resource in the regions where forest resources are limited. The current usage of non-wood plant fibers, as rice straws, corn stalks, cotton stalks, and bagasse would play a chief role in increasing papermaking raw materials. Using of non-wood plant fibers in the paper industry associated with some problems, including collection, transportation, storage and handling, washing, bleaching, papermaking, chemical recovery, supply of raw material and the properties of finished paper. Recently, a high-tech innovation in all the fields of papermaking has made non-wood more reasonable with wood as a raw material for papermaking. Although till now, use of non-wood fibers for pulp and paper manufacture was focused in countries with limited wood supply, it is now showing a growing effort even in countries with acceptable wood source due to environmental concerns. Consequently, the future of non-wood plant fibers as pulping and papermaking raw material looks bright.

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R&D COLLABORATION AND NANOTECHNOLOGY — AN OPPORTUNITY FOR TRADITIONAL INDUSTRIES

International Journal of Innovation and Technology Management ◽

10.1142/s021987701250023x ◽

2012 ◽

Vol 09 (03) ◽

pp. 1250023

Author(s):

TUOMO NIKULAINEN

Keyword(s):

Manufacturing Industry ◽

New Technologies ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

High Tech ◽

Collaboration Networks ◽

Innovation Activities ◽

Technological Developments ◽

Traditional Manufacturing

This paper focuses on assessing the modes of research and development (R&D) collaboration and technological lifecycles in the Finnish pulp and paper industry. This traditional manufacturing industry is currently undergoing changes due to market and technological developments. By discussing industrial and technological lifecycles, this paper aims to establish the extent to which these changes affect the R&D collaboration networks in the industry. The paper also provides insight regarding how the incumbents in this industry change their innovation activities in the face of a new science-based technology — nanotechnology — which is argued to have a significant impact on innovative activities in many traditional and high-tech industries. The results suggest that the Finnish pulp and paper industry is adapting to the changing innovation environment by increasing internal R&D investment and by extending and diversifying its R&D collaboration networks. The results also indicate that nanotechnology is seen as a potential new source of business for the pulp and paper industry but that investment will be required, particularly in absorptive capacity, to take advantage of these new technologies.

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Co-cooking nonwoods with hardwoods

TAPPI Journal ◽

10.32964/tj13.6.19 ◽

2014 ◽

Vol 13 (6) ◽

pp. 19-24

Author(s):

TROY RUNGE ◽

CHUNHUI ZHANG

Keyword(s):

High Performance Liquid Chromatography ◽

High Performance ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Strength Properties ◽

Agricultural Residues ◽

Kraft Pulping ◽

Pulp And Paper ◽

Strength Increase ◽

Xylan Content

Agricultural residues and energy crops are promising resources that can be utilized in the pulp and paper industry. This study examines the potential of co-cooking nonwood materials with hardwoods as means to incorporate nonwood material into a paper furnish. Specifically, miscanthus, switchgrass, and corn stover were substituted for poplar hardwood chips in the amounts of 10 wt %, 20 wt %, and 30 wt %, and the blends were subjected to kraft pulping experiments. The pulps were then bleached with an OD(EP)D sequence and then refined and formed into handsheets to characterize their physical properties. Surprisingly, all three co-cooked pulps showed improved strength properties (up to 35%). Sugar measurement of the pulps by high-performance liquid chromatography suggested that the strength increase correlated with enriched xylan content.

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