The Solidification and Stabilization of Pb in Soil using Apatite-modified Biochar DOI Creative Commons
Haihua Li,

Lu Yu,

Zihan Chen

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 2, 2024

Abstract In this study, biochar (BC) was prepared by pyrolysis using sesame straw as the precursor, and modified with hydroxyapatite chloroapatite to prepare hydroxyapatite-modified (HBC) chloroapatite-modified (BC-Cl), respectively. The changes in functional groups before after modification were investigated various characterization methods, passivation effects of BC, HBC, BC-Cl on lead (Pb) soil studied. three types introduced into contaminated at ratios 3% 5% passivate soil. After remediation, effective Pb content decreased 45.45%, 76.70%, 82.38%, respectively, compared control (CK) group. Moreover, increased dosage. When cultured for 90 d, reducible 22.03%, 22.97%, 26.36%, while residual state 76.22%, 88.31%, 103.53%, CK. effectively passivated soil, 5%BC-Cl sample exhibiting most pronounced effect. This study’s findings offer a new method efficient utilization provide reference developing apatite-based remediation materials.

Language: Английский

Methane oxidation coupling with heavy metal and microplastic transformations for biochar-mediated landfill cover soil DOI

Jiang Wu,

Qiyong Xu, Rujie Zhang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135879 - 135879

Published: Sept. 17, 2024

Language: Английский

Citations

2
Microplastic inhibits the sorption of trichloroethylene on modified biochar DOI Creative Commons
Hainan Lu

Water Science & Technology, Journal Year: 2024, Volume and Issue: 89(8), P. 1981 - 1995

Published: April 4, 2024

ABSTRACT Biochar (BC) was used to remove trichloroethylene (TCE) from soil and water phases, BC modification changed the sorption behavior of pollutants. Microplastics are emerging pollutants in phases. Whether microplastics can affect TCE by modified is not clear. Thus, batch kinetics isotherm experiments were conducted elucidate on BC, combined with polyethylene (PE) or polystyrene (PS). The results showed that HCl NaOH increased while HNO3 inhibited BC. When PE/PS coexisted, capacity decreased significantly BC-CK + PE, BC-HCl BC-HNO3 BC-NaOH PS, which likely due preferential samples. We concluded change inhibit interaction should be considered when for removal remediation.

Language: Английский

Citations

0
Effect of Molybdenum Dioxide Modified Biochar Driven Fe(Ii)/Fe(Iii) Redox Cycle in the Remediation of Cr(Vi) Contamination in Soil DOI
Mingxuan Liu, Heng Li, Qing Fu

et al.

Published: Jan. 1, 2024

Biochar is extensively utilized for the remediation of sites contaminated with heavy metals, mitigating bioavailability and potential environmental risk metals through mechanisms immobilization transformation. However, due to presence metal ions in soil minerals complexity pollution at actual sites, effectiveness biochar amending contamination remains uncertain. This study addresses issue by employing molybdenum dioxide-modified remediate various polluted environments. It also integrates Fe(II)/Fe(III) oxidation-reduction cycle tests confirm efficacy modified removing Cr(VI) explore adsorption mechanisms. The results indicate that addition alters redox-active components soil, enhancing redox cycling iron within soil. decreases following order: dioxide-loaded (BC/M) > ball-milled dioxide (BC+M) original (BC). indicates test, remedial agent utilizing reduce was more effective than capability agent. provides a reference management farmland preparation materials.

Language: Английский

Citations

0
Shopping Around: Comparing Cd(Ii) Sorption Performance Of Disparate Functional Groups-Modified Microcrystalline Cellulose Composites DOI

Wenyu Wu,

Haoyue Tang,

Shiying Bi

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

0
The Solidification and Stabilization of Pb in Soil using Apatite-modified Biochar DOI Creative Commons
Haihua Li,

Lu Yu,

Zihan Chen

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 2, 2024

Abstract In this study, biochar (BC) was prepared by pyrolysis using sesame straw as the precursor, and modified with hydroxyapatite chloroapatite to prepare hydroxyapatite-modified (HBC) chloroapatite-modified (BC-Cl), respectively. The changes in functional groups before after modification were investigated various characterization methods, passivation effects of BC, HBC, BC-Cl on lead (Pb) soil studied. three types introduced into contaminated at ratios 3% 5% passivate soil. After remediation, effective Pb content decreased 45.45%, 76.70%, 82.38%, respectively, compared control (CK) group. Moreover, increased dosage. When cultured for 90 d, reducible 22.03%, 22.97%, 26.36%, while residual state 76.22%, 88.31%, 103.53%, CK. effectively passivated soil, 5%BC-Cl sample exhibiting most pronounced effect. This study’s findings offer a new method efficient utilization provide reference developing apatite-based remediation materials.

Language: Английский

Citations

0