Recent progress on the phytotoxic effects of hydrochars and toxicity reduction approaches.
Ecotoxicity
Hydrochar
Hydrothermal carbonization
Phytotoxicity
Soil amendment
Toxicity reduction
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Jul 2022
Jul 2022
Historique:
received:
03
02
2022
revised:
15
03
2022
accepted:
16
03
2022
pubmed:
22
3
2022
medline:
7
5
2022
entrez:
21
3
2022
Statut:
ppublish
Résumé
Hydrothermal carbonization of wet biomasses has been known to produce added-value materials for a wide range of applications. From catalyst substrates, to biofuels and soil amendments, hydrochars have distinct advantages to offer compared to conventional materials. With respect to the agricultural application of hydrochars, both positive and negative results have been reported. The presence of N, P and K in certain hydrochars is appealing and may contribute to the reduction of chemical fertilizer application. However, regardless of biomass, hydrothermal carbonization results in the production of phytotoxic organic compounds. Additionally, hydrochars from sewage sludge often contain heavy metal concentrations which exceed the regulatory limits set for agricultural use. This review critically discusses the phytotoxic aspects of hydrochar and provides an account of the substances commonly responsible for these. Furthermore, phytotoxicity reduction approaches are proposed and compared with each other, in view of field-scale applications.
Identifiants
pubmed: 35313162
pii: S0045-6535(22)00850-5
doi: 10.1016/j.chemosphere.2022.134357
pii:
doi:
Substances chimiques
Fertilizers
0
Sewage
0
Soil
0
Carbon
7440-44-0
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
134357Informations de copyright
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