A new process for sustainable wastewater treatment in Chilean copper smelters
| Autor: | Adrian Rojo, Claudia Gutiérrez, Henrik K. Hansen |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Economics and Econometrics
Natural resource economics medicine.medical_treatment Geography Planning and Development chemistry.chemical_element 02 engineering and technology Management Monitoring Policy and Law Environmental Science (miscellaneous) Development engineering.material Electrocoagulation 020401 chemical engineering medicine 0204 chemical engineering Arsenic Lime Electrodialysis 021001 nanoscience & nanotechnology Pulp and paper industry Copper chemistry Reagent Smelting engineering Environmental science Sewage treatment 0210 nano-technology |
| Zdroj: | European Journal of Sustainable Development. 5 |
| ISSN: | 2239-6101 2239-5938 |
| DOI: | 10.14207/ejsd.2016.v5n3p159 |
| Popis: | An actual Chilean copper smelter wastewater treatment is a complex process that actually mostly is focused on fulfillment of threshold values more than sustainability. The actual wastewater treatment includes a number of precipitation, neutralization, clarifying and filtering steps. This manuscript proposes a new sustainable process that would eliminate/reduce several of the disadvantages in an actual copper wastewater treatment such as a) reduced lime addition, b) a separate gypsum and heavy metal/arsenic precipitation, c) an electrodialysis stage that would recover copper, d) an easier ferric ion dosage for arsenic removal by electrocoagulation, and e) a less reagent consuming neutralization step. Keyword: Sustainable wastewater treatment, Electrocoagulation, Arsenic removal, Copper recovery |
| Databáze: | OpenAIRE |
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