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AuthorSajid, Mehmood
AuthorAhmed, Waqas
AuthorAlatalo, Juha M.
AuthorMahmood, Mohsin
AuthorImtiaz, Muhammad
AuthorDitta, Allah
AuthorAli, Esmat F.
AuthorAbdelrahman, Hamada
AuthorSlaný, Michal
AuthorAntoniadis, Vasileios
AuthorRinklebe, Jörg
AuthorShaheen, Sabry M.
AuthorLi, Weidong
Available date2022-04-20T09:02:01Z
Publication Date2022-06-20
Publication NameScience of The Total Environment
Identifierhttp://dx.doi.org/10.1016/j.scitotenv.2022.154043
CitationMehmood, S., Ahmed, W., Alatalo, J. M., Mahmood, M., Imtiaz, M., Ditta, A., ... & Li, W. (2022). Herbal plants-and rice straw-derived biochars reduced metal mobilization in fishpond sediments and improved their potential as fertilizers. Science of The Total Environment, 826, 154043.
ISSN00489697
URIhttps://www.sciencedirect.com/science/article/pii/S0048969722011354
URIhttp://hdl.handle.net/10576/30039
AbstractFishpond sediments are rich in organic carbon and nutrients; thus, they can be used as potential fertilizers and soil conditioners. However, sediments can be contaminated with toxic elements (TEs), which have to be immobilized to allow sediment reutilization. Addition of biochars (BCs) to contaminated sediments may enhance their nutrient content and stabilize TEs, which valorize its reutilization. Consequently, this study evaluated the performance of BCs derived from Taraxacum mongolicum Hand-Mazz (TMBC), Tribulus terrestris (TTBC), and rice straw (RSBC) for Cu, Cr, and Zn stabilization and for the enhancement of nutrient content in the fishpond sediments from San Jiang (SJ) and Tan Niu (TN), China. All BCs, particularly TMBC, reduced significantly the average concentrations of Cr, Cu, and Zn in the overlying water (up to 51% for Cr, 71% for Cu, and 68% for Zn) and in the sediments pore water (up to 77% for Cr, 76% for Cu, and 50% for Zn), and also reduced metal leachability (up to 47% for Cr, 60% for Cu, and 62% for Zn), as compared to the control. The acid soluble fraction accounted for the highest portion of the total content of Cr (43–44%), Cu (38–43%), and Zn (42–45%), followed by the reducible, oxidizable, and the residual fraction; this indicates the high potential risk. As compared with the control, TMBC was more effective in reducing the average concentrations of the acid soluble Cr (15–22%), Cu (35–53%), and Zn (21–39%). Added BCs altered the metals acid soluble fraction by shifting it to the oxidizable and residual fractions. Moreover, TMBC improved the macronutrient status in both sediments. This work provides a pathway for TEs remediation of sediments and gives novel insights into the utilization of BC-treated fishpond sediments as fertilizers for crop production.
SponsorWe thank the National Natural Science Foundation of China for the financial support of this work (NSFC-31860728). Esmat F. Ali is thankful to Taif University Researchers Supporting Project number (TURSP-2020/65), Taif University, Saudi Arabia, for the financial support and research facilities.
Languageen
PublisherElsevier
SubjectFishpond sediments
Heavy metals
Immobilization
Biochar
Nutrients content
TitleHerbal plants- and rice straw-derived biochars reduced metal mobilization in fishpond sediments and improved their potential as fertilizers
TypeArticle
Volume Number826
ESSN1879-1026
dc.accessType Open Access


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