Publications by authors named "Marcela E Hansen"
Article Synopsis
- - The research investigates a combined electrodialysis and electrocoagulation method to simultaneously recover copper and remove arsenic from acidic wastewater generated during copper smelting.
- - Using synthetic wastewater, the study found that electrodialysis achieved 100% removal of copper and 67% removal of arsenic, while electrocoagulation effectively precipitated 82% of the remaining arsenic.
- - The optimal current for this combined process was determined to be 1.36 A, allowing for efficient treatment times and effective separation of contaminants, highlighting the method's potential for sustainable metal recovery and wastewater treatment.
Removal of Heavy Metals from Mine Tailings in Central Chile Using Meyen, DC, and Miers ex Bertero.
Int J Environ Res Public Health
February 2023
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 towns have been built, generally in locations with no budget for their treatment. This study tested three plant species from Northern and Central Chile to remove total chromium, nickel, and zinc from tailings: , and , which complements the few existing studies on heavy metals removal with native or endemic Chilean shrubs.
View Article and Find Full Text PDF