Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Juha Knuutinen"'
Publikováno v:
BioResources, Vol 7, Iss 4, Pp 6041-6076 (2012)
This review describes the role of wood extractives, especially fatty and resin acids, in papermaking, as well as the importance of their removal from process waters. One of the main aims is also to illustrate versatile analysis methods for this purpo
Externí odkaz:
https://doaj.org/article/bc45088c05be408ca763ba19b77dc08a
Autor:
Piia Valto, Juha Knuutinen, Raimo Alén, Mikko Rantalankila, Jani Lehmonen, Antti Grönroos, Juha Houni
Publikováno v:
BioResources, Vol 5, Iss 1, Pp 172-186 (2010)
The applicability of a special pilot-scale installation (Short Circulation Device) was studied for demonstrating the enrichment of selected resin and fatty acids in process waters when increasing water reuse during the manufacture of paper. The tradi
Externí odkaz:
https://doaj.org/article/28845cc25d8f498ea64dd383994edb4f
Publikováno v:
Water Quality Research Journal of Canada. 53(1):14-23
Concentrations of pharmaceuticals, consisting of four anti-inflammatory and one antiepileptic drug, were studied in the aqueous and solid phase of municipal sewage sludge, collected from a wastewater treatment plant (WWTP) in central Finland. The sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50714067532ae1de66791a5dfb76bb8e
https://doi.org/10.2166/wqrj.2018.022
https://doi.org/10.2166/wqrj.2018.022
Publikováno v:
Environmental Science and Pollution Research International
An updated version of FATEMOD, a multimedia fugacity model for environmental fate of organic chemicals, was set up to assess environmental behaviour of three pharmaceuticals in northern Lake Päijänne, Finland. Concentrations of ibuprofen, diclofena
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3634fd642ffa09d21d7d90a33ab60da
http://urn.fi/URN:NBN:fi:jyu-201901071084
http://urn.fi/URN:NBN:fi:jyu-201901071084
Autor:
Heli Vahtera, Sirpa Herve, Heidi Ahkola, Juha Knuutinen, K. Lahti, Jaana Koistinen, Petra C. Lindholm-Lehto
Publikováno v:
Environmental Science and Pollution Research. 23:18043-18054
The occurrence of five pharmaceuticals, consisting of four anti-inflammatory and one antiepileptic drug, was studied by passive sampling and grab sampling in northern Lake Päijänne and River Vantaa. The passive sampling was performed by using Chemc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::260c3df78a191b493cc4702c0e2d5a92
https://doi.org/10.1007/s11356-016-6778-y
https://doi.org/10.1007/s11356-016-6778-y
Publikováno v:
Environmental Science and Pollution Research. 22:17209-17223
The presence of five different pharmaceuticals, consisting of four anti-inflammatory and one antiepileptic drug, was determined in influent and effluent of a municipal wastewater treatment plant (WWTP) near the city of Jyväskylä, Finland, and in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50e92e9fdfdec688a24820249b7152ee
https://doi.org/10.1007/s11356-015-4908-6
https://doi.org/10.1007/s11356-015-4908-6
Autor:
Tuomas Oravilahti, Mahdi Pahlevan, Mia Ahokas, Juha Knuutinen, Carl-Eric Wilén, Martti Toivakka, Parvez Alam, Anniina Oravilahti, F. Touaiti, Robert Nilsson
Publikováno v:
Åbo Akademi University
Insufficient coating strength can lead to various problems in printing and converting of pigment-coated paper and paperboard. The loss in strength, especially in the presence of printing liquids, can result from poor adhesion between the binder and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77455e082d0ec6f9112766b13873f290
https://doi.org/10.32964/tj14.6.373
https://doi.org/10.32964/tj14.6.373
Publikováno v:
Applied Surface Science. 276:43-52
The interactions between calcite pigment and sodium polyacrylate dispersing agent, widely used in papermaking as paper coating components, were investigated using classical force field and quantum chemical approaches. The objective was to understand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9d5969896b066d663985f198e7cfeba
https://doi.org/10.1016/j.apsusc.2013.02.122
https://doi.org/10.1016/j.apsusc.2013.02.122
Publikováno v:
Environmental Science and Pollution Research. 18:1049-1056
Currently, elemental chlorine-free (ECF) and totally chlorine-free (TCF) bleaching systems are widely used for pulp production. Low and medium molecular weight lignin break-down products are known to have harmful effects on the environment. According
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::971b8892ecb250f96883d6590a57c655
https://doi.org/10.1007/s11356-011-0556-7
https://doi.org/10.1007/s11356-011-0556-7
Publikováno v:
Journal of Separation Science. 34:925-930
A novel HPLC-atmospheric pressure chemical ionization/MS (HPLC-APCI/MS) method was developed for the rapid analysis of selected fatty and resin acids typically present in papermaking process waters. A mixture of palmitic, stearic, oleic, linolenic, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36197c15021a14df0a97ed57fe2189ac
https://doi.org/10.1002/jssc.201000893
https://doi.org/10.1002/jssc.201000893