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Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)

The risk posed by heavy metals makes it difficult to dispose of sediment contaminants from dredging lakes in China. Black soldier fly (Hermetia illucens) can convert organic waste, such as restaurant waste and lake sediment, to high-value-added protein feed and fertilizer. Experimental groups were f...

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Autores principales: Hu, Caixi, Yang, Longyuan, Wang, Hanlin, Xiao, Xiaopeng, Wang, Zhongwen, Gong, Xiangyi, Liu, Xianli, Li, Wu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10102990/
https://www.ncbi.nlm.nih.gov/pubmed/37064243
http://dx.doi.org/10.3389/fbioe.2023.1163057
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author Hu, Caixi
Yang, Longyuan
Wang, Hanlin
Xiao, Xiaopeng
Wang, Zhongwen
Gong, Xiangyi
Liu, Xianli
Li, Wu
author_facet Hu, Caixi
Yang, Longyuan
Wang, Hanlin
Xiao, Xiaopeng
Wang, Zhongwen
Gong, Xiangyi
Liu, Xianli
Li, Wu
author_sort Hu, Caixi
collection PubMed
description The risk posed by heavy metals makes it difficult to dispose of sediment contaminants from dredging lakes in China. Black soldier fly (Hermetia illucens) can convert organic waste, such as restaurant waste and lake sediment, to high-value-added protein feed and fertilizer. Experimental groups were formed in this study to explore the conversion of heavy metals present in the mixture of restaurant waste and lake sediment by black soldier fly larvae (BSFL). The results demonstrated that BSFL could survive in pure sediment with an 84.76% survival rate. Relative to the substrate, BSFL could accumulate 70-90% zinc (Zn), chromium (Cr), copper (Cu), and 20-40% cadmium (Cd) and lead (Pb). The experimental group 2:3, with 40% lake sediment and 60% restaurant waste, was the best group after conversion for 15 days, which showed a 95.24% survival rate of BFSL, 82.20 mg average weight of BFSL, 8.92 mm average length of BFSL, with varying content of heavy metals such as Cu (43.22 mg/kg), Zn (193.31 mg/kg), Cd (1.58 mg/kg), Cr (25.30 mg/kg) Cr, and Pb (38.59 mg/kg) in BSFL. Furthermore, the conversion residue conforms to the relevant standards of organic fertilizer in China and can be used as organic fertilizer. Overall, the present study shows that black soldier flies can improve the resource utilization of lake sediment, especially by reducing the effect of heavy metals.
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spelling pubmed-101029902023-04-15 Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens) Hu, Caixi Yang, Longyuan Wang, Hanlin Xiao, Xiaopeng Wang, Zhongwen Gong, Xiangyi Liu, Xianli Li, Wu Front Bioeng Biotechnol Bioengineering and Biotechnology The risk posed by heavy metals makes it difficult to dispose of sediment contaminants from dredging lakes in China. Black soldier fly (Hermetia illucens) can convert organic waste, such as restaurant waste and lake sediment, to high-value-added protein feed and fertilizer. Experimental groups were formed in this study to explore the conversion of heavy metals present in the mixture of restaurant waste and lake sediment by black soldier fly larvae (BSFL). The results demonstrated that BSFL could survive in pure sediment with an 84.76% survival rate. Relative to the substrate, BSFL could accumulate 70-90% zinc (Zn), chromium (Cr), copper (Cu), and 20-40% cadmium (Cd) and lead (Pb). The experimental group 2:3, with 40% lake sediment and 60% restaurant waste, was the best group after conversion for 15 days, which showed a 95.24% survival rate of BFSL, 82.20 mg average weight of BFSL, 8.92 mm average length of BFSL, with varying content of heavy metals such as Cu (43.22 mg/kg), Zn (193.31 mg/kg), Cd (1.58 mg/kg), Cr (25.30 mg/kg) Cr, and Pb (38.59 mg/kg) in BSFL. Furthermore, the conversion residue conforms to the relevant standards of organic fertilizer in China and can be used as organic fertilizer. Overall, the present study shows that black soldier flies can improve the resource utilization of lake sediment, especially by reducing the effect of heavy metals. Frontiers Media S.A. 2023-03-31 /pmc/articles/PMC10102990/ /pubmed/37064243 http://dx.doi.org/10.3389/fbioe.2023.1163057 Text en Copyright © 2023 Hu, Yang, Wang, Xiao, Wang, Gong, Liu and Li. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Bioengineering and Biotechnology
Hu, Caixi
Yang, Longyuan
Wang, Hanlin
Xiao, Xiaopeng
Wang, Zhongwen
Gong, Xiangyi
Liu, Xianli
Li, Wu
Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)
title Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)
title_full Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)
title_fullStr Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)
title_full_unstemmed Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)
title_short Analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (Hermetia illucens)
title_sort analysis of heavy metals in the conversion of lake sediment and restaurant waste by black soldier fly (hermetia illucens)
topic Bioengineering and Biotechnology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10102990/
https://www.ncbi.nlm.nih.gov/pubmed/37064243
http://dx.doi.org/10.3389/fbioe.2023.1163057
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