Artificial Floating Island with Vetiver for Treatment of Arsenic-Contaminated Water: A Real Scale Study in High-Andean Reservoir
| Autor: | Nataly Marisol Llugsha Moreta, Kalina Marcela Fonseca Largo, Joseline Luisa Ruiz Depablos, Edgar Fabián Espitia-Sarmiento |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Arsenic uptake
lcsh:TD201-500 lcsh:Hydraulic engineering Environmental remediation Geography Planning and Development Environmental engineering Sediment chemistry.chemical_element Vetiver phytoremediation Aquatic Science Contamination Biochemistry Macrophyte Phytoremediation lcsh:Water supply for domestic and industrial purposes Water security chemistry lcsh:TC1-978 Environmental science Effluent Arsenic Water Science and Technology artificial floating island |
| Zdroj: | Water Volume 12 Issue 11 Water, Vol 12, Iss 3086, p 3086 (2020) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w12113086 |
| Popis: | Arsenic found in agriculture water reservoirs represents a threat to water security and safe agricultural products in developing countries. Small farms do not implement traditional water treatments due to the high cost hence, a nature-based solution is an alternative to tackling this challenge. This paper investigated the potential of artificial floating island with Vetiver (AFIV) for the geogenic arsenic removal present in the reservoir of the Ilinizas pá ramo in Ecuador. We constructed two AFIV systems using PVC pipes in a reservoir batch type with a 3.6 m3 treatment capacity. Arsenic and iron were analyzed in duplicated every 30 days at the affluent and effluent through 120 days. The average remediation of arsenic was recorded as 97% in water and 84% in sediment, while the average remediation of iron was 87% in sediment. The survival rate of macrophytes was 92% they accumulated arsenic in its roots that acted as a barrier against the translocation. The research demonstrated that the use of AFIV has the potential to rehabilitate reservoirs contaminated with arsenic under adverse climatic conditions such as the pá ramo ecosystem. |
| Databáze: | OpenAIRE |
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