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Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product

In this work, modified biomass ash (MA), obtained through the hydrothermal treatment technique with biomass ash (BA) and alkaline phosphate as raw materials, was used as a useful soil amendment to reduce the environmental risk of lead and was compared with raw ash. In order to confirm the compositio...

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Autores principales: Liu, Hongyu, Zhou, Zhuangwei, Zhang, Yujie, Chen, Ningyi, Kang, Jingyan, Liu, Guijian, Hosmane, Narayan S., Wu, Aiguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417829/
https://www.ncbi.nlm.nih.gov/pubmed/36134240
http://dx.doi.org/10.1039/c9na00001a
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author Liu, Hongyu
Zhou, Zhuangwei
Zhang, Yujie
Chen, Ningyi
Kang, Jingyan
Liu, Guijian
Hosmane, Narayan S.
Wu, Aiguo
author_facet Liu, Hongyu
Zhou, Zhuangwei
Zhang, Yujie
Chen, Ningyi
Kang, Jingyan
Liu, Guijian
Hosmane, Narayan S.
Wu, Aiguo
author_sort Liu, Hongyu
collection PubMed
description In this work, modified biomass ash (MA), obtained through the hydrothermal treatment technique with biomass ash (BA) and alkaline phosphate as raw materials, was used as a useful soil amendment to reduce the environmental risk of lead and was compared with raw ash. In order to confirm the composition changes from BA to MA, the materials before and after modification were characterized by using transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), Fourier transform infrared (FT-IR) spectroscopy, and X-ray diffraction (XRD). Subsequently, the suppression of the environmental risks of lead in the contaminated cropland soil by MA and BA was systematically investigated through pH evaluation, toxicity-extraction, and fractional analysis. The results show that needle-like hydroxyapatite nanoparticles were generated during the modification process of BA. After incubation with 5% BA and 5% MA for 60 days, the pH of soil samples increased from 5.46 to 7.20 and 6.83, respectively; the lead concentration by TCLP extraction decreased by about 52.6% and 95.2%, respectively. And the content of lead bound to RES increased from 36.28% to 49.09% and 59.58%, respectively. MA showed higher immobilization efficiency, better immobilization stability, and less disturbance to the soil pH than BA, and it can suppress the environmental risk of lead below the standard toxicity level. These results undoubtedly demonstrate that BA has great potential in the practical application of remediation of lead contaminated soil, and its modified product may become a useful amendment to suppress and/or eliminate the high environmental risk of lead by transforming industrial waste into useful nanomaterials for green environmental chemistry.
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spelling pubmed-94178292022-09-20 Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product Liu, Hongyu Zhou, Zhuangwei Zhang, Yujie Chen, Ningyi Kang, Jingyan Liu, Guijian Hosmane, Narayan S. Wu, Aiguo Nanoscale Adv Chemistry In this work, modified biomass ash (MA), obtained through the hydrothermal treatment technique with biomass ash (BA) and alkaline phosphate as raw materials, was used as a useful soil amendment to reduce the environmental risk of lead and was compared with raw ash. In order to confirm the composition changes from BA to MA, the materials before and after modification were characterized by using transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), Fourier transform infrared (FT-IR) spectroscopy, and X-ray diffraction (XRD). Subsequently, the suppression of the environmental risks of lead in the contaminated cropland soil by MA and BA was systematically investigated through pH evaluation, toxicity-extraction, and fractional analysis. The results show that needle-like hydroxyapatite nanoparticles were generated during the modification process of BA. After incubation with 5% BA and 5% MA for 60 days, the pH of soil samples increased from 5.46 to 7.20 and 6.83, respectively; the lead concentration by TCLP extraction decreased by about 52.6% and 95.2%, respectively. And the content of lead bound to RES increased from 36.28% to 49.09% and 59.58%, respectively. MA showed higher immobilization efficiency, better immobilization stability, and less disturbance to the soil pH than BA, and it can suppress the environmental risk of lead below the standard toxicity level. These results undoubtedly demonstrate that BA has great potential in the practical application of remediation of lead contaminated soil, and its modified product may become a useful amendment to suppress and/or eliminate the high environmental risk of lead by transforming industrial waste into useful nanomaterials for green environmental chemistry. RSC 2019-04-08 /pmc/articles/PMC9417829/ /pubmed/36134240 http://dx.doi.org/10.1039/c9na00001a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Liu, Hongyu
Zhou, Zhuangwei
Zhang, Yujie
Chen, Ningyi
Kang, Jingyan
Liu, Guijian
Hosmane, Narayan S.
Wu, Aiguo
Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
title Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
title_full Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
title_fullStr Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
title_full_unstemmed Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
title_short Suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
title_sort suppression of the environmental risks of lead in cropland soil using biomass ash and its modified product
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417829/
https://www.ncbi.nlm.nih.gov/pubmed/36134240
http://dx.doi.org/10.1039/c9na00001a
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