Immobilizing lead using loess and nanoscale zerovalent iron (nZVI)-amended loess: Insights from macroscopic and microscopic tests DOI Creative Commons

Shaojie Wen,

Wen-Chieh Cheng, Dongfeng Li

et al.

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 31, P. 103228 - 103228

Published: June 1, 2023

Lead (Pb) can accumulate in organisms causing damage to liver and kidney functions. Preventing Pb2+ migration surrounding environments is considered of great necessity. This study explored the potential applying loess nanoscale zerovalent iron-amended (nZVI-AL) Pb immobilization. The static equilibrium adsorption analyses showed that by nZVI-AL was classed as homogeneous monolayer surface adsorption. nZVI particles provided with more sites for their attachment prevented using Fe-O Fe-O-H bonds. Their encouraged formation cerussite precipitation, which not only caused reduction diffraction peak calcite mineral but shifted band from around 1430 cm−1 a lower wavenumber. unbonded electrons functional groups on quartz coordinated empty orbit Pb2+, leaving at 3.3429 Å. Further, Ca2+ distribution sample blurry because retardant depletion particles. Moreover, hydroxyl bound via hydrogen bonds were formed amendment, displacing 701 698 cm−1. clay minerals well form Pb(OH)+, corresponding O-H stretching vibrations 3616 3430 respectively. shows its landfills bottom liner system.

Language: Английский

Effects of four amendments on cadmium and arsenic immobilization and their exposure risks from pakchoi consumption DOI
Zhe Wang, Yiping Zhang,

Shiyong Sun

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 340, P. 139844 - 139844

Published: Aug. 17, 2023

Language: Английский

Citations

15
Acidified biochar improves lead tolerance and enhances morphological and biochemical attributes of mint in saline soil DOI Creative Commons
Azhar Sohail Shahzad,

Uzma Younis,

Nargis Naz

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: May 30, 2023

Abstract Lead (Pb) toxicity is a significant environmental issue, especially in areas with past of industrial activities and mining. The existence Pb the soil can have negative impacts on plant growth development, it also pose risk to human health through food chain. Acidified carbon has shown promise as an effective management technology for mitigating toxicity. This study provides important insights into potential acidified biochar low-cost eco-friendly method managing Pb-contaminated soils. current explores effectiveness (AB) alleviating stress mint. involved two levels (0 = control 200 mg/kg Pb) four AB treatments (0, 0.45, 0.90, 1.20%). Results indicate that 1.20% was most treatment, significantly decreasing root shoot concentration while enhancing fresh dry weight, length, N, P, K concentration. Moreover, decrease MDA (0.45AB, 0.90AB, 1.20AB caused decline content by 14.3%, 27.8%, 40.2%, respectively) increase ascorbic acid led 1.9%, 24.8%, 28.4%, validated compared control. Adding 0.45AB, soluble sugar 15.6%, 27.5%, 32.1%, respectively, treatment without AB. Further investigations at field level are suggested confirm efficacy best against saline conditions.

Language: Английский

Citations

13
Integrative study of transcriptome and microbiome to reveal the response of Rhododendron decorum to cadmium stress DOI Creative Commons

Jiyi Gong,

Chao Wang, Jianfeng Wang

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 280, P. 116536 - 116536

Published: June 3, 2024

The anomalies of cadmium (Cd) in karst region pose a severe threat to plant growth and development. In this study, the responses Rhododendron decorum Cd stress were investigated at physiological, molecular, endophytic microbial levels, potential correlation among these was assessed. impeded R. led an increase malondialdehyde (MDA) hydrogen peroxide (H

Language: Английский

Citations

5
Contamination characteristics and source analysis of potentially toxic elements in dustfall-soil-crop systems near non-ferrous mining areas of Yunnan, southwestern China DOI

Ying Luo,

Zhe Wang, Zhenlong Zhang

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 882, P. 163575 - 163575

Published: April 17, 2023

Language: Английский

Citations

12
Immobilizing lead using loess and nanoscale zerovalent iron (nZVI)-amended loess: Insights from macroscopic and microscopic tests DOI Creative Commons

Shaojie Wen,

Wen-Chieh Cheng, Dongfeng Li

et al.

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 31, P. 103228 - 103228

Published: June 1, 2023

Lead (Pb) can accumulate in organisms causing damage to liver and kidney functions. Preventing Pb2+ migration surrounding environments is considered of great necessity. This study explored the potential applying loess nanoscale zerovalent iron-amended (nZVI-AL) Pb immobilization. The static equilibrium adsorption analyses showed that by nZVI-AL was classed as homogeneous monolayer surface adsorption. nZVI particles provided with more sites for their attachment prevented using Fe-O Fe-O-H bonds. Their encouraged formation cerussite precipitation, which not only caused reduction diffraction peak calcite mineral but shifted band from around 1430 cm−1 a lower wavenumber. unbonded electrons functional groups on quartz coordinated empty orbit Pb2+, leaving at 3.3429 Å. Further, Ca2+ distribution sample blurry because retardant depletion particles. Moreover, hydroxyl bound via hydrogen bonds were formed amendment, displacing 701 698 cm−1. clay minerals well form Pb(OH)+, corresponding O-H stretching vibrations 3616 3430 respectively. shows its landfills bottom liner system.

Language: Английский

Citations

11