Manganese enhances the immobilization of trace cadmium from irrigation water in biological soil crust.
Biological soil crust
Biomineral
Heavy metal
Paddy
Journal
Ecotoxicology and environmental safety
ISSN: 1090-2414
Titre abrégé: Ecotoxicol Environ Saf
Pays: Netherlands
ID NLM: 7805381
Informations de publication
Date de publication:
30 Jan 2019
30 Jan 2019
Historique:
received:
13
07
2018
revised:
22
10
2018
accepted:
23
10
2018
pubmed:
6
11
2018
medline:
17
1
2019
entrez:
6
11
2018
Statut:
ppublish
Résumé
The effect of biological soil crust (BSC) in paddy field on the immobilization and removal of heavy metal from irrigation water is an important issue. BSC was cultured in solutions with different concentrations of manganese (Mn) salt and cadmium (Cd) sulfate for 15 days. We analyzed the Mn, Cd and Fe contents in the BSC and investigated the effects of Mn salt on the Cd distribution in different binding-forms in BSC as well. The results show that Mn salt was effective at enabling BSC to immobilize the Cd, and its removal efficiency from irrigation water improved with an increase in the Mn concentration used. The removal of 50.00 μg/L of Cd from irrigation water by BSC reached as high as 95.70% in present of 20.00 mg/L Mn. The highest obtained biological concentrated factor of BSC for Cd is ~2.7 × 10
Identifiants
pubmed: 30396133
pii: S0147-6513(18)31096-0
doi: 10.1016/j.ecoenv.2018.10.087
pii:
doi:
Substances chimiques
Metals, Heavy
0
Soil
0
Soil Pollutants
0
Cadmium
00BH33GNGH
Water
059QF0KO0R
Manganese
42Z2K6ZL8P
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
369-377Informations de copyright
Copyright © 2018 Elsevier Inc. All rights reserved.