Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hanna Runtti"'
Publikováno v:
Water Science and Technology, Vol 88, Iss 11, Pp 2917-2930 (2023)
Cadmium (Cd) is a highly toxic metal, occurring in municipal wastewater and stormwater as well as in wastewater from various industries. Char derived from the pyrolysis of municipal sewage sludge has the potential to be a low-cost sorption media for
Externí odkaz:
https://doaj.org/article/a8ef71d81b8942e892005571769190cd
Autor:
Hanna Runtti, Elavarasi Sundhararasu, Janne Pesonen, Sari Tuomikoski, Tao Hu, Ulla Lassi, Teija Kangas
Publikováno v:
ChemEngineering, Vol 7, Iss 1, p 5 (2023)
Five alkali-activated analcime (ANA) sorbents (ANA-MK 1, ANA 2, ANA 3, ANA-MK 4, and ANA-MK 5) were developed for ammonium (NH4+) ion removal. Acid treatment and calcination were used as pre-treatments for analcime, and metakaolin (MK) was used as a
Externí odkaz:
https://doaj.org/article/f5036eda8ca94605acac4f79b34fa3d0
Autor:
Elavarasi Sundhararasu, Hanna Runtti, Teija Kangas, Janne Pesonen, Ulla Lassi, Sari Tuomikoski
Publikováno v:
Resources, Vol 11, Iss 12, p 119 (2022)
The aim of this study was to examine the removal of ammonium ions from a synthetic model solution by using Na-zeolite-based geopolymers. Na-zeolite (=analcime) is a residue from mining industry. Three adsorbents were prepared from Na-zeolite using di
Externí odkaz:
https://doaj.org/article/1998df4569bb44ec8337cc284479450f
Autor:
Elavarasi Sundhararasu, Sari Tuomikoski, Hanna Runtti, Tao Hu, Toni Varila, Teija Kangas, Ulla Lassi
Publikováno v:
ChemEngineering, Vol 5, Iss 1, p 13 (2021)
Alkali-activated adsorbents were synthesized by mixing three different slags from the steel industry: blast furnace slag (BFS), ladle slag (LS), and Lintz–Donawitz converter slag (LD). These powdered slag-based geopolymers (GP) were used to remove
Externí odkaz:
https://doaj.org/article/9a4764664add4f5b8c2694e53c807e8b
Publikováno v:
BioResources, Vol 11, Iss 2, Pp 3136-3152 (2016)
Sulphate removal from mine water is a problem because traditional chemical precipitation does not remove all sulphates. In addition, it creates lime sediment as a secondary waste. Therefore, an inexpensive and environmental-friendly sulphate removal
Externí odkaz:
https://doaj.org/article/008ada921b084197b7760630c95c129b
Autor:
Sari Tuomikoski, Riikka Kupila, Henrik Romar, Davide Bergna, Teija Kangas, Hanna Runtti, Ulla Lassi
Publikováno v:
Applied Sciences, Vol 9, Iss 21, p 4583 (2019)
Sawdust was used as a precursor for the production of biomass-based activated carbon. Carbonization and activation are single-stage processes, and steam was used as a physical activation agent at 800 °C. The adsorption capacity towards zinc was test
Externí odkaz:
https://doaj.org/article/c214b9be83e4460681da823f56da4a23
Autor:
Johanna Laukkanen, Esther Takaluoma, Hanna Runtti, Jari Mäkinen, Tommi Kauppila, Seppo Hellsten, Tero Luukkonen, Ulla Lassi
Publikováno v:
Journal of Soils and Sediments. 22:1054-1067
Purpose Adsorbent amendment to contaminated sediments is one in situ remediation method to decrease the bioaccessibility of pollutants from the sediments. In this work, alkali-activated blast furnace slag (BFS) granules were used in a field experimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd89f3d573cc8e0f1a64f5ea75e5f0ac
https://doi.org/10.1007/s11368-022-03140-z
https://doi.org/10.1007/s11368-022-03140-z
Removal of dissolved zinc (Zn) from water by a novel alkali-activated material (AAM) prepared from steel industry slags in a fixed-bed column was investigated. Design of experiments was used to find the optimum operation parameters [flow rate (Q), ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f96d23889fdb7abad67d0205c39eccff
Autor:
Tuomikoski, Elavarasi Sundhararasu, Hanna Runtti, Teija Kangas, Janne Pesonen, Ulla Lassi, Sari
Publikováno v:
Resources; Volume 11; Issue 12; Pages: 119
The aim of this study was to examine the removal of ammonium ions from a synthetic model solution by using Na-zeolite-based geopolymers. Na-zeolite (=analcime) is a residue from mining industry. Three adsorbents were prepared from Na-zeolite using di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::e5377aaa56f6efbca93826a69ed6d102
Publikováno v:
Environmental science and pollution research internationalReferences.
Naturally occurring layered double hydroxide mineral, brucite (BRU), was compared with hydromagnesite (HYD) and a commercial Mg-rich mineral adsorbent (trade name AQM PalPower M10) to remove antimony (Sb) from synthetic and real wastewaters. The BRU
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79562fa0ecbd74429a530c40080ba755
https://pubmed.ncbi.nlm.nih.gov/36149556
https://pubmed.ncbi.nlm.nih.gov/36149556