A - Papers appearing in refereed journals
Cao, Y., Wang, X., Zhang, X., Misselbrook, T. H., Bai, Z. and Ma, L. 2021. An electric field immobilizes heavy metals through promoting combination with humic substances during composting. Bioresource Technology. 330 (17), p. 124996. https://doi.org/10.1016/j.biortech.2021.124996
Authors | Cao, Y., Wang, X., Zhang, X., Misselbrook, T. H., Bai, Z. and Ma, L. |
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Abstract | The aim of this study was to explore a novel method to immobilize heavy metals (HM) in composting through increasing the combination of these with humic substances. An electric-field assistant technique was applied to strengthen biomass biodegradation and assess the impact on the humification process and HM immobilization in composting. Results demonstrated that the application of an electric field enriched bacterial abundance and enhanced bacterial metabolism. Humic substance and humic acid (HA) contents in compost product were significantly increased by 19 and 69%, respectively. The HA-complexed Cu, Zn, As, Cd contents were increased by 34, 41, 29 and 135.1%, respectively, which was attributed to the promotion of HA formation since a positive correlation between HA and HA-complexed HM (R2 = 0.60–0.87) was established. The evidence presented here supports the future development of electric field implementation as an intrinsic bioremediation technique for HM immobilization. |
Keywords | Composting; Electric field; Heavy metals; Humic substances; Bioremediation |
Year of Publication | 2021 |
Journal | Bioresource Technology |
Journal citation | 330 (17), p. 124996 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biortech.2021.124996 |
Open access | Published as non-open access |
Funder | Biotechnology and Biological Sciences Research Council |
Funder project or code | S2N - Soil to Nutrition [ISPG] |
Output status | Published |
Publication dates | |
Online | 16 Mar 2021 |
Publisher | Elsevier Sci Ltd |
Elsevier | |
ISSN | 0960-8524 |
Permalink - https://repository.rothamsted.ac.uk/item/984q1/an-electric-field-immobilizes-heavy-metals-through-promoting-combination-with-humic-substances-during-composting
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