Adsorption Performance Analysis of Alternative Reactive Media for Remediation of Aquifers Affected by Heavy Metal Contamination
| Autor: | Amerigo Beneduci, Adalgisa Tavolaro, Celia Margarita Mayacela Rojas, Carmine Fallico, A. Molinari, Maria Fernanda Rivera Velasquez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Environmental remediation
Health Toxicology and Mutagenesis contaminants dynamics batch test Aquifer 02 engineering and technology 010501 environmental sciences 01 natural sciences Article Calcium Carbonate Adsorption natural fibers Agave Metals Heavy Water Pollution Chemical zeolite Zeolite Groundwater Environmental Restoration and Remediation 0105 earth and related environmental sciences geography Zerovalent iron geography.geographical_feature_category Chemistry heavy metals in groundwater Public Health Environmental and Occupational Health Contamination 021001 nanoscience & nanotechnology Environmental chemistry zero valent iron Zeolites 0210 nano-technology Water Pollutants Chemical Reactive material |
| Zdroj: | International journal of environmental research and public health (Online) 15 (2018). doi:10.3390/ijerph15050980 info:cnr-pdr/source/autori:Molinari, Antonio; Rojas, Celia Margarita Mayacela; Beneduci, Amerigo; Tavolaro, Adalgisa; Rivera Velasquez, Maria Fernanda; Fallico, Carmine/titolo:Adsorption Performance Analysis of Alternative Reactive Media for Remediation of Aquifers Affected by Heavy Metal Contamination/doi:10.3390%2Fijerph15050980/rivista:International journal of environmental research and public health (Online)/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:15 International Journal of Environmental Research and Public Health International Journal of Environmental Research and Public Health; Volume 15; Issue 5; Pages: 980 |
| DOI: | 10.3390/ijerph15050980 |
| Popis: | A series of experimental batch tests has been carried out with the aim of improving the knowledge of fundamental processes related to the fate and behavior of heavy metals that can be of environmental concern in groundwater. The analysis of contaminants (i.e., Cu, Zn, Cd and Pb) dynamics in different environmental compartments is specifically addressed by comparing the removal efficiencies of different types of reactive materials, three natural (i.e., vegetal fibers, natural limestone and natural zeolite) and one synthetic (i.e., synthetic zeolite). Results stemming from these reactive media has been compared with the outcomes related to the same test performed using zero valent iron which is the reactant usually employed for heavy metals remediation. All tested reactants exhibited important removal percentages, even larger than 90% in most cases, achieved in a contact time ranging between about 12 h and slightly longer than a day (i.e., 30 h). Maximum adsorption percentages are observed for pH ranging between 4 and 8 for all tested materials and contaminants. Our findings provided relevant evidence, to both researchers and technicians, on the competitiveness of the explored alternative mediums with respect to the classical reactants usually employed for heavy metals remediation. |
| Databáze: | OpenAIRE |
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