Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Henrik K. Hansen"'
Publikováno v:
Minerals, Vol 14, Iss 3, p 298 (2024)
In Chile, the budget for managing environmental liabilities such as abandoned tailings impoundments is limited. Using native and endemic plant species to remove heavy metals from tailings represents a low-cost alternative. Ex situ phytoremediation ex
Externí odkaz:
https://doaj.org/article/64d15ddc57a24b6995cfcc4b511e8263
Autor:
Henrik K. Hansen, Claudia Gutiérrez, Natalia Valencia, Claudia Gotschlich, Andrea Lazo, Pamela Lazo, Rodrigo Ortiz-Soto
Publikováno v:
Metals, Vol 13, Iss 6, p 1008 (2023)
Heavy metal exposure from wastewater is an important environmental issue worldwide. In the search for more efficient treatment technologies, biosorption has been presented as an alternative for contaminant removal from wastewaters. The aim of this wo
Externí odkaz:
https://doaj.org/article/0e2e49da30bb440391b9c70e61dd9167
Autor:
Henrik K. Hansen, Claudia Gutiérrez, Jorge Leiva Gonzalez, Andrea Lazo, Marcela E. Hansen, Pamela Lazo, Lisbeth M. Ottosen, Rodrigo Ortiz
Publikováno v:
Membranes, Vol 13, Iss 3, p 264 (2023)
In copper smelting processes, acidic effluents are generated that contain inorganic contaminants such as arsenic and copper. Nowadays, the treatment of wastewater is done by physicochemical methods without copper recovery. Electrodialysis is an alter
Externí odkaz:
https://doaj.org/article/2096f95f2a424ef4b09dd96b0fd71c5c
Autor:
Henrik K. Hansen, Zenovia Neira, Claudia Gutiérrez, Andrea Lazo, Pamela Lazo, Marcela E. Hansen, Mario Ollino, Cecilia Caneo, Lisbeth M. Ottosen
Publikováno v:
Hansen, H K, Neira, Z, Gutiérrez, C, Lazo, A, Lazo, P, Hansen, M E, Ollino, M, Caneo, C & Ottosen, L M 2022, ' As(III)-to-As(V) oxidation in copper smelter wastewater by in-situ generated ozone ', Chemical Engineering and Technology, vol. 45, no. 6, pp. 1201-1206 . https://doi.org/10.1002/ceat.202100584
As(III) is the most common arsenic species in copper smelter wastewater but is difficult to remove, and an oxidation to As(V) is desirable. The oxidation of As(III) to As(V) in copper smelter wastewater was studied using in situ-generated ozone, whic
Autor:
Andrea Lazo, Pamela Lazo, Alejandra Urtubia, María Gabriela Lobos, Henrik K. Hansen, Claudia Gutiérrez
Publikováno v:
International Journal of Environmental Research and Public Health; Volume 19; Issue 6; Pages: 3583
In Chile, there are several abandoned mine tailing impoundments near population centers that need to be remediated. In this study, the ability of Oxalis gigantea, Cistanthe grandiflora, and Puya berteroniana to remove Zn, Ni, and Cr from mine tailing
Autor:
Pamela Lazo, Andrea Lazo, Henrik K. Hansen, Rodrigo Ortiz-Soto, Marcela E. Hansen, Felipe Arévalo, Claudia Gutiérrez
Publikováno v:
International Journal of Environmental Research and Public Health
Volume 20
Issue 3
Pages: 2749
Volume 20
Issue 3
Pages: 2749
Mining activities have been a part of the history of Chile since time immemorial, generating pollution and environmental liabilities. Due to the lack of regulation, many tailings are deposited close to rivers or/and on unstable ground, near which tow
Publikováno v:
Water and Environment Journal. 34:284-290
Experimental results for selenium removal from oil refinery wastewater applying the electrochemical peroxidation process (ECP) using either graphite electrodes with iron nanoparticles (nZVI) or carbon steel electrodes with anodic iron dissolution (AD
Autor:
Andrés F. Olea, Sebastián Pino, Conny Brito, Henrik K. Hansen, Katy Díaz, Luis Espinoza, Martín Faúndez
Publikováno v:
Plants
Volume 10
Issue 8
Plants, Vol 10, Iss 1719, p 1719 (2021)
Volume 10
Issue 8
Plants, Vol 10, Iss 1719, p 1719 (2021)
Gray mold disease, which is caused by Botrytis cinerea Pers ex. Fr., results in serious economic losses to Lycopersicum esculentum (tomato) crop productivity. In this study, we explored the possibility that mixtures of essential oils (EOs) and their
Publikováno v:
Minerals Engineering. 100:187-190
In this work, a continuous multistage electrodialytic technique is evaluated as a possible treatment of copper smelter wastewater. Six experiments with different values of feed flow rate, current density and treatment time were carried out. It was po
Publikováno v:
Waste management (New York, N.Y.). 102
In order to reduce emissions of CO2 from cement production and avoid severe environmental pollution from the deposition of mine waste, this study investigated the possibility of utilizing mine tailings as supplementary cementitious materials (SCM) fo