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פותח על ידי קלירמאש פתרונות בע"מ -
Effect of water leaching on biochar properties and its impact on organic contaminant sorption
Year:
2020
Authors :
גרבר, אלן
;
.
קומאר, אבאי
;
.
Volume :
27
Co-Authors:

Schreiter, I.J., Schmidt, W. and Schüth, C.

Facilitators :
From page:
691
To page:
703
(
Total pages:
13
)
Abstract:

When biochar (BC) is applied to soil, one process that can alter its properties and contaminant sorption is the leaching of minerals and dissolved organic carbon (DOC). This study investigated changes in properties of three BCs (cattle manure, grain husk, and wood chips), due to leaching, and the subsequent impact on sorption of trichloroethylene (TCE) and tetrachloroethylene (PCE). The manure-derived BC released 27.4 mg g−1 DOC, which is over ten times more than that measured for the two plant-based BCs (2.5 and 1.5 mg g−1 DOC for grain husk and wood chips, respectively). In all leachates, potassium is the dominant cation, whereas chloride, sulfate, and phosphate are the main anions. In total, the manure-derived biochar released the highest sum of total ions (73.1 mg g−1), followed by BC produced from grain husk (15.5 mg g−1) and wood chips (1.2 mg g−1). Leaching increased external surface area, mesopore volume, and hydrophobicity of the manure-derived BC and decreased its polarity. This enhanced sorption via partitioning. In plant-based BCs, micropore volume and size distribution were altered, most likely through the un-blocking of pores, causing increased sorption via pore-filling for both TCE and PCE. The results indicate that, depending on feedstock material, BC leaching can alter the environmental fate of organic compounds.

Note:
Related Files :
Accelerated leaching
biochar
biochar
Leachable organic carbon
Pore clogging
Tetrachloroethylene
trichloroethylene
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1007/s11356-019-06904-2
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
45693
Last updated date:
02/03/2022 17:27
Creation date:
30/12/2019 11:03
Scientific Publication
Effect of water leaching on biochar properties and its impact on organic contaminant sorption
27

Schreiter, I.J., Schmidt, W. and Schüth, C.

Effect of water leaching on biochar properties and its impact on organic contaminant sorption .

When biochar (BC) is applied to soil, one process that can alter its properties and contaminant sorption is the leaching of minerals and dissolved organic carbon (DOC). This study investigated changes in properties of three BCs (cattle manure, grain husk, and wood chips), due to leaching, and the subsequent impact on sorption of trichloroethylene (TCE) and tetrachloroethylene (PCE). The manure-derived BC released 27.4 mg g−1 DOC, which is over ten times more than that measured for the two plant-based BCs (2.5 and 1.5 mg g−1 DOC for grain husk and wood chips, respectively). In all leachates, potassium is the dominant cation, whereas chloride, sulfate, and phosphate are the main anions. In total, the manure-derived biochar released the highest sum of total ions (73.1 mg g−1), followed by BC produced from grain husk (15.5 mg g−1) and wood chips (1.2 mg g−1). Leaching increased external surface area, mesopore volume, and hydrophobicity of the manure-derived BC and decreased its polarity. This enhanced sorption via partitioning. In plant-based BCs, micropore volume and size distribution were altered, most likely through the un-blocking of pores, causing increased sorption via pore-filling for both TCE and PCE. The results indicate that, depending on feedstock material, BC leaching can alter the environmental fate of organic compounds.

Scientific Publication
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