Search Results - "Hansen, Henrik K."

Lead and Copper Removal from Mine Tailings Using Lycium chilense and Haplopappus foliosus by Pamela Lazo, Andrea Lazo, Henrik K. Hansen, Claudia Gutiérrez, Rodrigo Ortiz-Soto

“…In Chile, the budget for managing environmental liabilities such as abandoned tailings impoundments is limited. Using native and endemic plant species to…”
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Combined Electrodialysis and Electrocoagulation as Treatment for Industrial Wastewater Containing Arsenic and Copper by Hansen, Henrik K, Gutiérrez, Claudia, Leiva Gonzalez, Jorge, Lazo, Andrea, Hansen, Marcela E, Lazo, Pamela, Ottosen, Lisbeth M, Ortiz, Rodrigo

“…In copper smelting processes, acidic effluents are generated that contain inorganic contaminants such as arsenic and copper. Nowadays, the treatment of…”
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Selection of Operation Conditions for a Batch Brown Seaweed Biosorption System for Removal of Copper from Aqueous Solutions by Hansen, Henrik K., Gutiérrez, Claudia, Valencia, Natalia, Gotschlich, Claudia, Lazo, Andrea, Lazo, Pamela, Ortiz-Soto, Rodrigo

“…Heavy metal exposure from wastewater is an important environmental issue worldwide. In the search for more efficient treatment technologies, biosorption has…”
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Electrocoagulation of arsenic using iron nanoparticles to treat copper mineral processing wastewater by Nuñez, Patricio, Hansen, Henrik K., Aguirre, Sandra, Maureira, Cristian

“…[Display omitted] ► Electrocoagulation and iron nanoparticles removes arsenic from acidic wastewater. ► Nanoparticle dosage and electric current important for…”
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Evaluation of mine tailings’ potential as supplementary cementitious materials based on chemical, mineralogical and physical characteristics by Simonsen, Anne Mette T., Solismaa, Soili, Hansen, Henrik K., Jensen, Pernille E.

“…•5 out of 13 mine tailings can possess chemical contribution as SCM.•3 out of 13 mine tailings can possess physical contribution as SCM.•Mine tailings possess…”
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Selenium removal from petroleum refinery wastewater using an electrocoagulation technique by Hansen, Henrik K., Peña, Sebastián Franco, Gutiérrez, Claudia, Lazo, Andrea, Lazo, Pamela, Ottosen, Lisbeth M.

“…•Electrocoagulation (EC) of wastewater from a petroleum refinery is a promising tool for removing selenium.•Selenium is removed by adsorption and/or…”
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Electrokinetic remediation of manganese and zinc in copper mine tailings by Ortiz-Soto, Rodrigo, Leal, Daniela, Gutierrez, Claudia, Aracena, Alvaro, Rojo, Adrian, Hansen, Henrik K.

“…•Electrokinetic remediation was performed with a constant voltage.•Maximum mass removal for manganese and zinc was 31.88% and 17.95%, respectively.•Effect of…”
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Electrokinetic treatment of an agricultural soil contaminated with heavy metals by Figueroa, Arylein, Cameselle, Claudio, Gouveia, Susana, Hansen, Henrik K.

“…The high organic matter content in agricultural soils tends to complex and retain contaminants such as heavy metals. Electrokinetic remediation was tested in…”
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Speciation and leachability of copper in mine tailings from porphyry copper mining: Influence of particle size by Hansen, Henrik K., Yianatos, Juan B., Ottosen, Lisbeth M.

“…Mine tailing from the El Teniente-Codelco copper mine situated in VI Region of Chile was analysed in order to evaluate the mobility and speciation of copper in…”
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Biosorption of cadmium with brown macroalgae by Gutiérrez, Claudia, Hansen, Henrik K., Hernández, Piroska, Pinilla, Carolina

“…•Lessonia nigrescens and Durvillaea antarctica adsorb cadmium efficiently.•The sorption kinetics for Durvillaea antarctica followed a pseudo second order…”
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Utilization of electromigration in civil and environmental engineering-Processes, transport rates and matrix changes by Ottosen, Lisbeth M., Christensen, Iben V., Rörig-Dalgård, Inge, Jensen, Pernille E., Hansen, Henrik K.

“…Electromigration (movement of ions in an applied electric field) is utilized for supply or extraction of ions from various porous materials within both civil…”
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Electrochemical peroxidation using iron nanoparticles to remove arsenic from copper smelter wastewater by Gutiérrez, Claudia, Hansen, Henrik K., Núñez, Patricio, Valdés, Erika

“…•A new electrochemical peroxidation process based on iron nanoparticles and graphite electrodes for arsenic removal is presented.•Arsenic can by removed…”
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An Assessment of the Metal Removal Capability of Endemic Chilean Species by Lazo, Andrea, Lazo, Pamela, Urtubia, Alejandra, Lobos, María Gabriela, Hansen, Henrik K, Gutiérrez, Claudia

“…In Chile, there are several abandoned mine tailing impoundments near population centers that need to be remediated. In this study, the ability of , and to…”
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Removal of Heavy Metals from Mine Tailings in Central Chile Using Solidago chilensis Meyen, Haplopappus foliosus DC, and Lycium chilense Miers ex Bertero by Lazo, Pamela, Lazo, Andrea, Hansen, Henrik K, Ortiz-Soto, Rodrigo, Hansen, Marcela E, Arévalo, Felipe, Gutiérrez, Claudia

“…Mining activities have been a part of the history of Chile since time immemorial, generating pollution and environmental liabilities. Due to the lack of…”
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Application of a Sequential Extraction Method for Analyzing Cu Distribution in Pre-Treated Mine Tailings after Electrodialytic Remediation by Lazo, Andrea, Hansen, Henrik K, Lazo, Pamela, Gutiérrez, Claudia

“…Mine tailings have been analyzed by a sequential extraction procedure after their pre-treatment with a leaching solution for 24 h and electrodialytic…”
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Adsorption of copper onto agriculture waste materials by Hansen, Henrik K., Arancibia, Fernanda, Gutiérrez, Claudia

“…Mining activities generate large amounts of wastewater, which contain heavy metals of elevated concentration according to legislative threshold values…”
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As(III)‐to‐As(V) Oxidation in Copper Smelter Wastewater by In Situ‐Generated Ozone by Hansen, Henrik K., Neira, Zenovia, Gutiérrez, Claudia, Lazo, Andrea, Lazo, Pamela, Hansen, Marcela E., Ollino, Mario, Caneo, Cecilia, Ottosen, Lisbeth M.

“…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…”
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Testing pulsed electric fields in electroremediation of copper mine tailings by Hansen, Henrik K., Rojo, Adrian

“…Mining processes, prior to pyrometallurgical copper production, generate large amounts of solid waste, which are and have been deposited in mine tailings…”
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Electrocoagulation in wastewater containing arsenic: Comparing different process designs by Hansen, Henrik K., Nuñez, Patricio, Raboy, Deborah, Schippacasse, Italo, Grandon, Rodrigo

“…Arsenic removal from wastewater is a key problem for copper smelters. This work shows results of electrocoagulation of aqueous solutions containing arsenic…”
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Electrokinetic remediation using pulsed sinusoidal electric field by Rojo, Adrian, Hansen, Henrik K., Cubillos, Marcela

“…In this work an electrokinetic remediation cell for copper mine tailings using sinusoidal electric field in pulses was analyzed. The sinusoidal electric field…”
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