scholarly journals The fauna of aquatic invertebrates in the river impacted by wastewaters from the pulp and paper industry (Komi Republic)

2021 ◽  
Vol 9 ◽  
Author(s):  
Maria Baturina ◽  
Olga Kononova ◽  
Elena Fefilova ◽  
Olga Loskutova
Keyword(s):  
Aquatic Invertebrates ◽  
Paper Industry ◽  
High Sensitivity ◽  
Benthic Invertebrate ◽  
Komi Republic ◽  
Pulp And Paper ◽  
Aquatic Invertebrate ◽  
Water Bodies ◽  
Toxic Substances ◽  
North East

Invertebrates are important elements of aquatic ecosystems and play a crucial role in the transformation of matter and energy in continental water bodies. Communities of aquatic invertebrates are characterised by high sensitivity to pollution by nutrients and toxic substances and acidification of water bodies; they serve as good bioindicators of the quality of the aquatic environment and impacts on hydroecosystems. All hydrobionts participate in the processes of self-purification of water bodies. The presented dataset provides information on the aquatic invertebrate community of a large northern river. During 2018-2020, we collected data on changes in the quantitative indicators of the development of benthic and planktonic communities, as well as the species diversity of their fauna. The dataset combines information about the occurrence and abundance of benthic and planktonic invertebrates and summarises data of aquatic invertebrate species found in the Vychegda River in the zone of influence from the pulp and paper mill. The presented dataset is part of a monitoring programme of the river ecosystems in the production area of Mondi Syktyvkar JSC (the European North-East of Russia, Komi Republic). The dataset describes the structure of benthic invertebrate and plankton communities in the Northern Dvina River Basin. The data on the finding and abundance of large taxa of aquatic invertebrates and species of some groups: Oligochaeta, Cladocera, Copepoda, Rotifera, Ephemeroptera, Plecoptera and Trichoptera are presented. In total, the resource includes 8720 findings of invertebrates, of which 6041 are for zoobenthos organisms and 2679 for zooplankton organisms.

scholarly journals Soil invertebrates of coniferous forests along a gradient of air pollution (Komi Republic)

2021 ◽  
Vol 9 ◽  
Author(s):  
Alla Kolesnikova ◽  
Tatyana Konakova ◽  
Anastasia Taskaeva ◽  
Alexey Kudrin
Keyword(s):  
Air Pollution ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Komi Republic ◽  
Pulp And Paper ◽  
Soil Invertebrates ◽  
Coniferous Forests ◽  
Soil Invertebrate ◽  
Production Area ◽  
The Impact

The role of soil invertebrates in the cycle of substances, soil-forming processes and the provision of ecosystem services is undeniable. Therefore, soil invertebrates are valuable in bioindication studies. Comprehensive research of soil invertebrates in the production area of Mondi Syktyvkar JSC as the largest pulp and paper enterprise in the European part of Russia was initiated in 2003. A huge amount of data about composition, abundance and structure of soil macro- and mesofauna along an impact gradient was accumulated during the period from 2003 to 2019 years. These data can be used to study local biodiversity, monitor the state of soil invertebrate communities and assess the impact of the pulp and paper industry on the environment. Datasets here presented include information from a monitoring programme for soil invertebrates that inhabit coniferous forests in the production area of Mondi Syktyvkar JSC (Komi Republic). The assemblages' structure of macrofauna, collembolans and nematodes are described. Information on the number of individuals of springtail species, nematodes genera and macrofauna taxa is given. A total of 11146 sampling events of macrofauna, 6673 sampling events of Collembola, and 2592 sampling events of Nematoda are recorded along a gradient of air pollution from pulp and paper industry emissions.

scholarly journals Chlorine in the Bleaching of Pulp and Paper

1996 ◽  
Vol 68 (9) ◽  
pp. 1721-1730 ◽  
Author(s):  
K. R. Solomon
Keyword(s):  
Chlorine Dioxide ◽  
Food Chain ◽  
Paper Industry ◽  
Pulp And Paper ◽  
Sufficient Evidence ◽  
Toxic Substances ◽  
Molecular Chlorine ◽  
Chlorinated Organic Compounds ◽  
Chlorine Substitution ◽  
Food Chain Transfer

The pulp and paper industry in Canada contributes significant effluent discharges to surface and marine waters. Chlorine and chlorine compounds are used in the bleaching of pulp. A large number of organochlorine chemicals of widely differing properties are, or have been, produced from this bleaching. These range from the highly hydrophobic, persistent and bioaccumulative toxic substances, such as 2,3,7,8-TCDD, to the higher molecular weight, non-hydrophobic material usually characterized by absorbable organic halogen. Chlorine dioxide and chlorine react with lignin by different chemical processes and produce different organochlorine products. Use of molecular chlorine as a bleaching agent results in the formation and release of chlorinated organic compounds, sometimes at concentrations that present an unacceptable risk to the receiving environment and the food chain. Alternatives to the use of molecular chlorine, such as chlorine dioxide, result in reductions in the quantities of organochlorines produced, and the degree of chlorine substitution in the organochlorines formed. This, in turn, leads to reduced persistence, reduced potential for bioaccumulation and food chain transfer, reduced toxicity and reductions in adverse ecological effects. However, sufficient evidence exists from responses observed at non-bleached mills to show that other (probably non-halogenated) compounds are released or formed during the production of pulp and cause responses such as induction of MFOs, changes in hormone levels, and reproductive effects.

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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