scholarly journals Changes in the content of heavy metals in soils due to the application of waste from the pulp and paper industry

2021 ◽  
Vol 5 (47) ◽  
pp. 11-11
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Heavy Metals ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Industrial Plant ◽  
Geochemical Background ◽  
Organic Additives ◽  
Sodium Lignosulfonate ◽  
Wood Processing ◽  
High Moor

This paper presents the results of a study of changes in the heavy metals content of soils of Karelia (podzolic loamy and peats high moor). Waste from wood processing, pulp and paper industry was added to the soils as organic additives using sodium lignosulfonate as an example. The results showed that no correlation with the additive dose was found in the series of total (Fe, Mn, Cu, Zn, Ti, Al, Ni, Co, Cr, Cd, Mo) and available forms of metals (Cu, Zn, Ti, Al, Ni, Co, Cr, Cd, Mo). Nevertheless, there is a positive correlation between the total and available forms of Pb and the available forms of Fe and Mn (r = 0.9), which can be explained by their initial content in the industrial plant material. It should be noted that the content of all forms of the studied metals did not exceed the requirements of sanitary-hygienic standards and geochemical background typical for soils in Karelia. Keywords: PODZOLIC LOAMY SOIL, PEATS HIGH MOOR SOIL, SODIUM LIGNOSULFONATE, HEAVY METALS

scholarly journals Woodworking Facilities: Driving Efficiency through Automation Applied to Major Process Steps

2018 ◽  
Vol 7 (4.7) ◽  
pp. 368 ◽  
Author(s):  
Garik Gasparyan ◽  
Ol'ga Kunickaya ◽  
Igor Grigorev ◽  
Viktor Ivanov ◽  
Olga Burmistrova ◽  
...  
Keyword(s):  
Economic Benefit ◽  
Large Scale ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Production Structure ◽  
Manufacturing Plants ◽  
Wood Processing ◽  
Pulp Paper ◽  
Major Process

The investment scenario applied to forestry development analyzes the fundamental changes in the production structure, among other things. These changes refer to the priority development of the pulp and paper industry through the chain of large-scale woodworking facilities, where pulp, paper and cardboard manufacturing plants are the key links. Such facilities include sawmilling facilities, wood-processing factories, and timber factories. Those provide a significant economic benefit, so improving them is one of the top priorities. Considering this priority is the purpose of this article. The goal was achieved using common and scientific research methods, including mathematical modeling.Theoretical research resulted in three sets of formulas adapted for evaluating the pulpwood barking from theoretical findings on image recognition.   

scholarly journals MODERN TRANSFORMATIONS OF THE WORLD MARKET OF PULP AND PAPER PRODUCTS

2020 ◽  
Author(s):  
Yulia Orlovska ◽  
◽  
Stanislav Synytskyi ◽  
Keyword(s):  
Data Storage ◽  
Negative Impact ◽  
Paper Industry ◽  
Current Trend ◽  
Pulp And Paper Industry ◽  
World Market ◽  
Pulp And Paper ◽  
Fibrous Materials ◽  
Wood Processing ◽  
The World

The peculiarities of the development of the world pulp and paper industry have been considered in this study. The types of products are described and the traditional type of production process within the industry has been characterized. The main exporters of pulp and paper products in the world have been identified. The dynamics of production indicators for printing paper, pulp, chemical wood pulp, cardboard, coated paper in the world market has been analyzed. A review of the pulp and paper industry of Ukraine was carried out on the basis of indicators of export and import of pulp from wood or other fibrous materials, export-import balance, sales of pulp, paper and cardboard in domestic and foreign markets. The current trend in the dynamics of export-import balance in the bulk trade of wood or other fibrous pulp for the period 2016-2020 indicates a significant predominance of imports over exports, which can be attributed to the lack of positive developments in the segment of deep wood processing in the forest sector. The key factors of modern transformations of the world market of pulp and paper products are stated: the growing demand for viscose pulp products used in the manufacture of new types of plastics; growing demand for recycled paper in the context of environmental friendliness of the material; growth in demand for sanitary and hygienic types of paper, which is associated with the growth of income and population on a global scale; growing demand for packaging paper and cardboard as an ecological type of packaging material; falling demand for all types of sulfite cellulose due to the negative impact on the environment; falling demand for all types of writing paper due to the technological revolution and changes in the format of data storage as a result of digitalization processes. The global pandemic COVID-2019, the processes of digitalization and human development on the basis of the concept of sustainable development have been considered as the main drivers of transformation processes in the industry. The main priorities of development of enterprises of pulp and paper products in the conditions of modern transformations for the purpose of increase of the international competitiveness of industrial centers on the world arena have been specified.

Co-cooking nonwoods with hardwoods

TAPPI Journal ◽  
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.

Application of VSEP for Pulp and Paper Industry.

1999 ◽  
Vol 53 (10) ◽  
pp. 1334-1338 ◽  
Author(s):  
Yoshiya Kuide ◽  
Kazuyoshi Yamamoto
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper
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