Effect of different tissue biochar amendments on As and Pb stabilization and phytoavailability in a contaminated mine technosol

Lebrun, Manhattan; Miard, Florie; Hattab-Hambli, Nour; Scippa, Gabriella Stefania; Bourgerie, Sylvain; Morabito, Domenico

doi:10.1016/j.scitotenv.2019.135657

Cited by 19 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regarding the application of biochar in contaminated soil remediation, prior research [18] showed that grinding biochar into smaller particle sizes did not change its pyrene removal efficiency. Likewise, Lebrun et al [19] stated that biochar's particle size did not have a significant effect on soil properties and on As and Pb uptake.…”

Section: Introductionmentioning

confidence: 99%

Indoor Air Remediation Using Biochar from Bark: Impact of Particle Size and Pollutant Concentration

Zouari,

Hribernik,

Schwarzkopf

2024

Indoor Air

View full text Add to dashboard Cite

The growing emphasis on indoor air quality and public health is fuelling the need for efficient yet affordable air purification techniques. In this study, the influence of biochar particle size on its adsorption efficiency toward airborne pollutants was examined. Bark-derived biochar particles were treated by grinding or ball milling, and then, seven samples with different particle size groups were separated. Biochar particles were characterized by particle size, proximate, SEM, XRD, and physisorption analyses. For adsorption efficiency, two different pollutants were tested at variable initial concentrations. The physical composition and XRD patterns of the biochar with different particle sizes were comparable. The ball-milled sample was an exception in that it had higher ash content and additional XRD peaks signifying contamination of the sample. The porosity of biochar was greater in smaller particles. Ball milling increased the specific surface area and total pore volume by 102% and 48%, respectively. Biochar with finer particle size exhibited the highest adsorption potential towards formaldehyde and methanol among other samples. It should be emphasized that simple mechanical grinding is preferred for reducing biochar size to avoid the risk of eventual contamination, greater energy consumption, and slower processing related to ball milling. When a low concentration of pollutant was tested (1 ppm formaldehyde), the effect of particle size on the adsorption efficiency was more noticeable. However, the effect of particle size was less dominant when higher concentrations of pollutants were tested. Smaller biochar particles (<100 μm) are more favourable for indoor air remediation given their superior adsorption efficiency of volatile organic compounds occurring at low concentrations in the buildings.

show abstract

Section: Introductionmentioning

confidence: 99%

Indoor Air Remediation Using Biochar from Bark: Impact of Particle Size and Pollutant Concentration

Zouari,

Hribernik,

Schwarzkopf

2024

Indoor Air

View full text Add to dashboard Cite

show abstract

“…A higher lignin content can result in a higher biochar yield; the percentage of lignocellulosic biomass (cellulose, hemicellulos, lignin) or minerals in biochar can result in different pH values, pore compositions or ash contents [14]. According to Lebrun [15], even biochars made from different layers of oak tree trunk (bark, sapwood, heartwood) have different properties. These differences between biochars caused different effects on the abundance, activity and feedback of soil nematodes.…”

Section: Introductionmentioning

confidence: 99%

The effects of different biochars on Caenorhabditis elegans and the underlying transcriptomic mechanisms

Chen,

Wang,

et al. 2023

PLoS ONE

View full text Add to dashboard Cite

Different biochars have diverse properties, with ambiguous effects on soil nematodes. This study investigated how aspen sawdust (ABC), bamboo powder (BBC), maize straw (MBC) and peanut-shell biochars (PBC) affected Caenorhabditis elegans via culture assays and RNA-seq analysis. The results showed that biochars derived from different agricultural materials varied significantly in physicochemical properties, and PBC produced more volatile organic compounds (VOCs) to attract C. elegans than ABC, BBC and MBC. Moreover, worms in ABC experienced the worst outcomes, while worms in PBC experienced milder impacts. Nematode body length decreased to 724.6 μm, 784.0 μm and 799.7 μm on average in ABC, BBC and MBC, respectively, compared to the control (1052 μm) and PBC treatments (960 μm). The brood size in ABC, MBC, BBC and PBC decreased 41.1%, 39.4%, 39.2% and 19.1% compared to the control, respectively. Furthermore, the molecular mechanisms of biochar-induced developmental effects on C. elegans were explored. Although several differentially expressed genes (DEGs) were different among the four biochars, worm phenotypic changes were mainly related to col genes (col-129; col-140; col-40; col-184), bli-6, sqt-3, perm-2/4, cdk-8, daf-16 and sod-1/2/5, which are associated with cuticle collagen synthesis, eggshell formation in postembryonic growth and rhythmic processes. Our study suggests that different properties of biochars could be crucial to soil nematodes, as well as the worms’ biochemical changes are important for the health in agriculture soil.

show abstract

Biochar for Improvement of Soil Properties

Kumar

Bhattacharya

2023

Environmental Contamination Remediation and Management

View full text Add to dashboard Cite

Effect of different tissue biochar amendments on As and Pb stabilization and phytoavailability in a contaminated mine technosol

Cited by 19 publications

References 49 publications

Indoor Air Remediation Using Biochar from Bark: Impact of Particle Size and Pollutant Concentration

Indoor Air Remediation Using Biochar from Bark: Impact of Particle Size and Pollutant Concentration

The effects of different biochars on Caenorhabditis elegans and the underlying transcriptomic mechanisms

Biochar for Improvement of Soil Properties

Contact Info

Product

Resources

About