Effects of the silica nanoparticles (NPSiO2) on the stabilization and transport of hazardous nanoparticle suspensions into landfill soil columns
AUTOR(ES)
Oliveira, Elizabeth Mendes de, Garcia-Rojas, Edwin Elard, Valadão, Izabella Christynne Ribeiro Pinto, Araújo, Adriana de Souza Forster, Castro, José Adilson de
FONTE
REM, Int. Eng. J.
DATA DE PUBLICAÇÃO
2017-09
RESUMO
Abstract This study evaluates the stability and transport behaviors of hazardous nanoparticles into soil landfills using experimental procedures to simulate the effects of natural silica nanoparticle suspensions during their percolation into the soil layers of municipal waste landfills. For this, we prepared stabilized suspensions of nanoparticle oxides containing silicon (NPSiO2), titanium (NPTiO2), copper (NPCuO) and zinc (NPZnO), which are recognized as hazardous to the environment, and we conducted leaching experiments within the soil column by simulating landfills layers and simulating the capture and attenuation of nanomaterials into municipal waste landfills. The results demonstrated that the presence of NPSiO2 in suspensions increases the stable concentrations of copper, zinc and titanium oxides and strongly decreases soil layer effectiveness. In contrast, NPZnO improves effectiveness due to its ability to promote agglomeration and setting conditions, allowing further complexation.
Documentos Relacionados
- Effects of addition of engineered ZnO nanoparticles on the stability of colloidal suspensions containing TiO2 interacting with sandy soil
- Nanoparticle assisted coagulation of aqueous alumina suspensions
- TRANSPORT PARAMETERS OF POTASSIUM FROM DIFFERENT SOURCES IN SOIL COLUMNS
- The effects of ZrO2 nanoparticles on physical and mechanical properties of high strength self compacting concrete
- Effect of soil permeability on virus removal through soil columns.