Water repellents for the leaching control of heavy metals in municipal solid waste incineration fly ash.
Waste Manag
; 124: 154-159, 2021 Apr 01.
Article
in En
| MEDLINE
| ID: mdl-33626420
ABSTRACT
Suppression of heavy metal elution from municipal solid waste incineration (MSWI) fly ash by cement or geopolymer solidification was studied. When these approaches are implemented, however, the volume of the solidified body increases as a consequence of the solidifying agent addition. Considering that residual landfill disposal capacity is decreasing in the long term, a novel method to suppress the elution of heavy metals from MSWI fly ash without decreasing the disposal capacity is needed. We studied four different water repellents and the results indicated that heavy metal elution can easily be suppressed by impregnating the incineration fly ash with commercially available silane oligomers, alkyl alkoxysilane compounds, and water repellents like fatty acids.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Refuse Disposal
/
Metals, Heavy
Language:
En
Journal:
Waste Manag
Journal subject:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2021
Type:
Article