Constructed stationary wetland for acid mine drainage treatment from the Mesapata-Catac Mineral Concentration Plant
The purpose of this research was to reduce de iron concentration and raise the pH of the Acid Mine Drainage (AMD: [Fe]=800 ppm; pH=2.6) from the Mesapata Concentrattion Plant with a constructed stationary wetland using the consortium of native phytoremediating species (Juncus imbricatus, Distichia m...
| Autores: | , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2022 |
| País: | Perú |
| Recursos: | Universidad Nacional Santiago Antúnez de Mayolo |
| Repositório: | Revistas - Universidad Nacional Santiago Antunez de Mayolo |
| Idioma: | espanhol |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/927 |
| Acesso em linha: | http://revistas.unasam.edu.pe/index.php/Aporte_Santiaguino/article/view/927 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Humedal construido; compost y BSR; fitorremediación; drenaje ácido de mina. Constructed wetland; compost and SRB; phytoremediation; acid mine drainage |
| Resumo: | The purpose of this research was to reduce de iron concentration and raise the pH of the Acid Mine Drainage (AMD: [Fe]=800 ppm; pH=2.6) from the Mesapata Concentrattion Plant with a constructed stationary wetland using the consortium of native phytoremediating species (Juncus imbricatus, Distichia muscoides, Typha angustifolia) and Sulfate Reducing Bacteria (BSR). The stationary wetland (length, 64 cm; width, 45 cm; height, 32) was built with 4 components in the following order: (a) BSR up to 5 cm; (b) gravel (diameter, 2 cm) up to 8 cm; (c) compost, up to 17 cm; and, (d) phytoremediating species, planted vegetatively on the substrate. The wetland reached its satability in a month; time at which the AMD was added (up to a height of 27 cm with a clearance of 5 cm) for its treatment. To determine the efficiency of the wetland, the iron concentration (MColortest Iron test kit - Merk) and the pH (potentiometer) in the AMD and in the wetland effluent were analyzed; reaching an efficiency of 99,8% for the immobilization of iron and an increase in pH to 7,92; this efficiency was repeated up to at least five consecutive times. |
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