Effects of Zn in sludge-derived biochar on Cd immobilization and biological uptake by lettuce.
Cd uptake by lettuce
Farmland soil amendment
Metal immobilization
Potentially toxic elements
Sludge-derived biochar
Sustainable remediation
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
20 Apr 2020
20 Apr 2020
Historique:
received:
29
07
2019
revised:
13
01
2020
accepted:
14
01
2020
pubmed:
25
1
2020
medline:
15
4
2020
entrez:
25
1
2020
Statut:
ppublish
Résumé
Considering the high Zn content of municipal sewage sludge and its competition with Cd during plant uptake due to their similar properties, the presence of Zn in sludge-derived biochar (SDBC) may affect Cd immobilization and uptake by plants. To confirm this, SDBC samples with different Zn contents were prepared and characterized. Their Cd immobilization behavior was studied by conducting batch sorption experiments, and their effects on Cd uptake by lettuce were explored by conducting hydroponic experiments. The results reveal that some Zn contained in the sewage sludge was transformed into ZnO during pyrolysis. The Brunauer-Emmett-Teller (BET) surface area of the SDBC samples containing 2324 mg kg
Identifiants
pubmed: 31978776
pii: S0048-9697(20)30231-X
doi: 10.1016/j.scitotenv.2020.136721
pii:
doi:
Substances chimiques
Sewage
0
Soil
0
Soil Pollutants
0
biochar
0
Cadmium
00BH33GNGH
Charcoal
16291-96-6
Zinc
J41CSQ7QDS
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
136721Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.