A Set Up of a Modern Analytical Laboratory for Wastewaters from Pulp and Paper Industry

ChemInform ◽  
2007 ◽  
Vol 38 (42) ◽  
Author(s):  
Natalia Maximova ◽  
Olli Dahl
2019 ◽  
pp. 153-163
Author(s):  
Elena Horská ◽  
Erika Loučanová ◽  
Peter Bielik ◽  
Vladislav Kaputa ◽  
Andrej Jahnátek ◽  
...  

One of the priorities of the EU is the creation of a resilient Energy Union with a forward looking climate policy that is capable of delivering the adopted 2020 and 2030 climate and energy targets and the EU's longer-term climate objectives. To achieve this, the EU has to decarbonize its energy supply, integrate the fragmented national energy markets into a smooth functioning and coherent European system, and set up a framework that allows the effective coordination of national states efforts. The paper deals with situation on the wooden biomass market in the frame of the Slovak Republic, and, marginally in a broader, the Central-European context. Slovakia is developing its renewable energy market based on the significant biomass resources. However, the wood biomass market is highly competitive, influenced by natural disturbances (wood supply), foreign demand, situation on the Central European market, utilisation of established capacities, launching additional resources and pressure on the prices of wood assortments. There are three major sectors consuming wood biomass: the pulp and paper industry, producers of wood-based panels and energy sector. Consumption of the wood biomass among the three competing sectors is analysed in the country range including the comparison of prices of pulpwood and wood chips. The paper also explains wood biomass market distortion and problems with the round wood assortments distribution (among sectors), and failure in respect to the principle of “wood cascading”. This paper is a part of the research study “Analysis of availability of main and alternative resources for pulp and paper industry.”


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Qihua Zhang ◽  
Shun Kang ◽  
Zhiang Xie ◽  
Li Cao ◽  
Zhaoxu Yan ◽  
...  

Abstract With growing demand of paper products, the electric consumption in pulp and paper industry is increasing globally where a share of 30 % is attributed to the pulp pumping system. The efficient designing and running of pumping system are critical for energy efficiency. The incomplete information on pulp flows and the oversized designs are the major causes of low efficiency. In the first part of this research, the fiber level models and rheological properties covering a series of unit applications are examined. A loss model of pulp pump is set up by considering different factors influencing pumping performance. The efficiency improvement opportunities in pulp pumping are systematically investigated. The drag-reducing feature at low consistency pulp pumping is highlighted which will be further applied in energy optimized sizing and dimensioning of a pulp pump in the second part of this research.


TAPPI Journal ◽  
2014 ◽  
Vol 13 (6) ◽  
pp. 19-24
Author(s):  
TROY RUNGE ◽  
CHUNHUI ZHANG

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.


1999 ◽  
Vol 53 (10) ◽  
pp. 1334-1338 ◽  
Author(s):  
Yoshiya Kuide ◽  
Kazuyoshi Yamamoto

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