Effects of biochar on the physiology and heavy metal enrichment of Vetiveria zizanioides in contaminated soil in mining areas

Yanmei, Ai; Wang, Yan; Song, Lanping; Hong, Wanyue; Zhang, Zekun; Li, Xiaoping; Zhou, Shoubiao; Zhou, Jihai

doi:10.1016/j.jhazmat.2023.130965

Cited by 21 publications

(9 citation statements)

References 46 publications

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“…Only a broad peak caused by the (002) plane of graphitic carbon at 24.8°was observed, consistent with the TEM results mentioned above. 30 The distribution of single-atom Ni sites was further conrmed via aberrationcorrected high-angle annular dark-eld scanning transmission electron microscopy (AC-TEM). The bright clusters of dots indicated by red circles in Fig.…”

Section: +mentioning

confidence: 99%

Nickel single atom mediated phosphate functionalization of moss derived biochar effectively enhances electrochemical uranium extraction from seawater

Feng,

Dong,

et al. 2024

J. Mater. Chem. A

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Section: +mentioning

confidence: 99%

Nickel single atom mediated phosphate functionalization of moss derived biochar effectively enhances electrochemical uranium extraction from seawater

Feng,

Dong,

et al. 2024

J. Mater. Chem. A

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“…Even under Cu contamination with biochar, the improvement of bamboo growth may be due to the improved physical properties of soil conferred by biochar, such as soil fertility, structure, and water-holding capacity. Biochar application decreases the availability of heavy metals to the plant and concomitantly improves soil fertility [39]. The bio-solubility of heavy metals reduces to some extent by adsorbing Cu ions on the surface [1].…”

Section: Leaves Count and Leaf Areamentioning

confidence: 99%

Impacts of Bamboo Biochar Amendment on Growth, Morphological Traits, and Biomass Allocation of Bambusa balcooa under Copper-Contaminated Soil Conditions

Lathwal,

Rani,

Vikas

et al. 2023

IJPSS

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The accumulation of heavy metals in water streams and soil is considered a grave environmental threat that impacts plants and animals. Biochar has recently been widely used to overcome the effects of heavy metal contamination in plants and remediate the soil. A pot-trial study assessed the morphological traits of Bambusa balcooa under copper contamination. Each pot (twenty-four earthen pots) was filled with 7.0 kg of soil and spiked with copper sulfate of 0, 300, 600, and 1200 mg kg-1. Of the total, twelve pots were amended with 7% (w/w of soil) bamboo biochar. Plant samples were harvested after one year (365 days) of treatment for biomass estimation. Data was recorded for different growth and morphological traits such as the number of clums, nodes, leaves, internode length, plant height, leaf area, root length, and dry biomass of root, shoot, and leaf to evaluate the impact of copper with or without bamboo biochar on Bambusa balcooa. The results indicated that the higher concentration of copper suppressed growth parameters such as shoot length, internode length, number of leaves, and leaf area; therefore, growth increment was significantly reduced at ) mg Kg‑1 copper-added soil. Biochar diminishes the impact of Cu stress on plants to some extent as at higher concentrations (600 and 1200 mg kg-1) was enhanced root dry biomass (51 and 148%), shoot dry biomass (42 and 57%), and leaf dry biomass (38 and 48%). Thus, results confirm that biochar amendment under Bambusa balcooa reduces the impact of copper contamination on the plant and increases plant growth by improving soil health, suggesting that bamboo biochar application was effective in metal stabilization, thereby, reducing the bioavailability and phytotoxicity of Cu and can help to restore copper-contaminated soil.

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“…Short-term analysis can also be used to observe changes in Cu metal over a shorter time span. This would allow researchers to track the immobilization of Cu by char in real time and to identify any factors that affect the immobilization process [5][6]. Short-term analysis could be used to determine the effect of pH on Cu immobilization or the effect of the presence of other heavy metals in the soil.…”

Section: 4) Sorption Kineticsmentioning

confidence: 99%

“…This reductive to oxidative environmental change causes soil conditions in mining areas to become very acidic. Some heavy metal pollutants in the soil include lead (Pb), cadmium (Cd, zinc (Zn), tin (Sn), copper (Cu), nickel (Ni), cobalt (Co), barium (Ba), iron (Fe), and manganese (Mn) [3][4][5]. The height and weight of plants are severely reduced when the Cu concentration in soil is greater than approximately 250 mg kg -1 [6].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Incubation Time and Drainage pH on the Immobilization of Copper in Post Coal Mine Soil Using Sumatera Brown Coal Char

Haviz,

Muhammad,

Vabylita

et al. 2023

App. Envi. Res.

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Post coal mine (PCM) activities pose significant environmental challenges. Soils affected by PCM often exhibit increased acidity and elevated levels of heavy metals. In the case of Sungai Buluh PCM in the Jambi Province, Indonesia, copper (Cu) levels in the soil reach 94.79 mg kg-1, surpassing the Indonesian standard of 40 mg kg-1. Sumatera brown coal (SBC), typically is not considered as fuel due to its properties, offers a cost-effective solution for Cu immobilization in such soils. In this study, SBC was subjected to pyrolysis at 400°C for 1 h, sieved through a 10-mesh sieve, and characterized using SEM and FTIR. The soil-char mixture consisted of 250 g of soil and 25 g of char (9:1 ratio), while a control group included 250 grams of soil with no char. The soil's pH significantly influenced Cu adsorption by SBC char. Cu immobility by SBC char was highest at pH 5, with an efficiency of 66.67% from pH 1 to 5. Over a 4-week period, the mobility of Cu in soil containing 10% char decreased by 36.36%. Pseudo-first-order kinetics yielded R2 values of 0.750 and 0.979 for 0% and 10% char additions, respectively. To inform future research on SBC char's potential for soil amendment, exploring the properties of SBC char produced at different pyrolysis temperatures is advisable. This information can aid in the development of char furnaces with appropriate technology to efficiently produce large quantities of effective SBC char. Additionally, determining optimal incubation times can help predict the frequency of char application in various regions.

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Effects of biochar on the physiology and heavy metal enrichment of Vetiveria zizanioides in contaminated soil in mining areas

Cited by 21 publications

References 46 publications

Nickel single atom mediated phosphate functionalization of moss derived biochar effectively enhances electrochemical uranium extraction from seawater

Nickel single atom mediated phosphate functionalization of moss derived biochar effectively enhances electrochemical uranium extraction from seawater

Impacts of Bamboo Biochar Amendment on Growth, Morphological Traits, and Biomass Allocation of Bambusa balcooa under Copper-Contaminated Soil Conditions

The Effect of Incubation Time and Drainage pH on the Immobilization of Copper in Post Coal Mine Soil Using Sumatera Brown Coal Char

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