Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Bleaching of wood pulp"'
Publikováno v:
Journal of Cleaner Production. 290:125854
Bleaching is an important industrial operation that has significant environmental impacts. Many new bleaching technologies have been developed; nonetheless, it is challenging to quantify their potential environmental impacts due to the lack of quanti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f02dd645c354fe6727e899e33b0d0172
https://doi.org/10.1016/j.jclepro.2021.125854
https://doi.org/10.1016/j.jclepro.2021.125854
Autor:
Kari Ala-Kaila, Outi Poukka
Publikováno v:
Chemical Engineering Journal. 95:187-197
Chemical processes often produce filtrate fractions with different chemical and physical properties. Typically filtrate fractions differ in the concentration of dissolved reaction products, reagents, and salts, but they may also differ in pH and temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5fda8c3733155c4b56e38e32cba9fa0
https://doi.org/10.1016/s1385-8947(03)00104-9
https://doi.org/10.1016/s1385-8947(03)00104-9
Publikováno v:
Research on Chemical Intermediates. 27:917-926
Non-alkaline bleaching of thermo-mechanical pulps using 40 MHz RF dielectric capacitor heating is described. Experimental data obtained under RF irradiation are compared with non-alkaline bleaching under pulsed microwave at 2.45 GHz. Optimal processi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf863a0c9afbc2da92c2d670e171993a
https://doi.org/10.1163/156856701753536651
https://doi.org/10.1163/156856701753536651
Publikováno v:
Water Research. 35:921-928
Spent bleaching liquors from pulp bleached with chlorine dioxide were assessed for their potency to induce hepatic mixed function oxygenase enzymes (MFO) in rainbow trout, as indicated by activity of ethoxyresorufin-o-deethyase (EROD). Filtrates were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::681c1a7f38430c565679449b7ad9f764
https://doi.org/10.1016/s0043-1354(00)00329-8
https://doi.org/10.1016/s0043-1354(00)00329-8
Publikováno v:
Water Science and Technology. 35:25-31
Ethylenediamine tetraacetic acid (EDTA) and diethylenetriamine pentaacetic acid (DTPA) are synthetic chelating agents that form stable complexes with most metals and are used in a variety of industrial applications. They are increasingly used with pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcc53cec22fae8c8128499648b0f5fda
https://doi.org/10.2166/wst.1997.0474
https://doi.org/10.2166/wst.1997.0474
Autor:
Olof Samuelson, Urban Öjteg
Publikováno v:
Nordic Pulp & Paper Research Journal. 9:259-266
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::921cdb8870f31ce5ab35fb3eb25bf5e8
https://doi.org/10.3183/npprj-1994-09-04-p259-266
https://doi.org/10.3183/npprj-1994-09-04-p259-266
Autor:
John E. Elliott
Publikováno v:
Emerging Topics in Ecotoxicology ISBN: 9780387894317
The exposure and effects of wildlife to persistent pollutants from forest industry sources were studied over the period 1986–2008 in British Columbia, Canada. Elevated concentrations of specific polychlorinated dibenzo-p-dioxin and furan (PCDD/PCDF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c014aa1d12c0b7b5a1208f61e2774fe
https://doi.org/10.1007/978-0-387-89432-4_2
https://doi.org/10.1007/978-0-387-89432-4_2
Autor:
G. C. Hobbs, J. Abbot
Publikováno v:
Journal of Wood Chemistry and Technology. 11:225-246
An examination of previously reported kinetic expressions describing peroxide bleaching of wood pulp under alkaline conditions reveals that the overall process can be considered as a combination of two parallel reaction routes. The first route corres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b0dca541e93dbefeb9660342d6331d3
https://doi.org/10.1080/02773819108050272
https://doi.org/10.1080/02773819108050272
Size-exclusion chromatography (SEC) of wood pulp constituents (cellulose, hemicellulose and lignin) has become widely used for analysis of these polymers, including transformations occurring under enzymatic processing. Possibilities of the SEC method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51e70ed6c6a509c27e0ff50abeebabb3
https://doi.org/10.1533/9781845698546.55
https://doi.org/10.1533/9781845698546.55
Autor:
Milton Wainwright
Publikováno v:
An Introduction to Environmental Biotechnology ISBN: 9781461373940
The pulp and paper industries have recently devoted considerable research, at some cost, to the application of biotechnology to solve environmental problems associated with paper production. These problems relate mainly to the formation of organochlo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0687b3e3c78476f0bb83baffcd4be3e
https://doi.org/10.1007/978-1-4615-5251-2_14
https://doi.org/10.1007/978-1-4615-5251-2_14