Biochar-immobilized Bacillus megaterium enhances Cd immobilization in soil and promotes Brassica chinensis growth

Qi, Wen-Yu; Chen, Hui; Wang, Zhe; Xing, Su-Fang; Song, Chao; Yan, Zhen; Wang, Shuguang

doi:10.1016/j.jhazmat.2023.131921

Cited by 16 publications

(2 citation statements)

References 70 publications

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“…However, the frequent and large-scale application of phosphorus fertilizers can cause the accumulation of Cd in agricultural soils, leading to environmental problems [ 9 ]. Therefore, increasing the utilization of soil P to reduce the input of low-quality phosphorus fertilizers is also an effective strategy by which to remediate Cd-contaminated farmland [ 10 , 11 ]. Phosphate-solubilizing bacteria (PSB) can convert insoluble phosphorus into soluble phosphorus that can be easily absorbed by plants and can increase the content of available phosphorus in the soil for the crop uptake [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Priestia aryabhattai on Phosphorus Fraction and Implications for Ecoremediating Cd-Contaminated Farmland with Plant–Microbe Technology

Yang,

Ning,

et al. 2024

Plants

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The application of phosphate-solubilizing bacteria has been widely studied in remediating Cd-contaminated soil, but only a few studies have reported on the interaction of P and Cd as well as the microbiological mechanisms with phosphate-solubilizing bacteria in the soil because the activity of phosphate-solubilizing bacteria is easily inhibited by the toxicity of Cd. This paper investigates the phosphorus solubilization ability of Priestia aryabhattai domesticated under the stress of Cd, which was conducted in a soil experiment with the addition of Cd at different concentrations. The results show that the content of Ca2-P increased by 5.12–19.84%, and the content of labile organic phosphorus (LOP) increased by 3.03–8.42% after the addition of Priestia aryabhattai to the unsterilized soil. The content of available Cd decreased by 3.82% in the soil with heavy Cd contamination. Priestia aryabhattai has a certain resistance to Cd, and its relative abundance increased with the increased Cd concentration. The contents of Ca2-P and LOP in the soil had a strong positive correlation with the content of Olsen-P (p < 0.01), while the content of available Cd was negatively correlated with the contents of Olsen-P, Ca2-P, and LOP (p < 0.05). Priestia aryabhattai inhibits the transport of Cd, facilitates the conversion of low-activity P and insoluble P to Ca2-P and LOP in the soil, and increases the bioavailability and seasonal utilization of P in the soil, showing great potential in ecoremediating Cd-contaminated farmland soil with plant–microbe-combined technology.

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Section: Introductionmentioning

confidence: 99%

Effects of Priestia aryabhattai on Phosphorus Fraction and Implications for Ecoremediating Cd-Contaminated Farmland with Plant–Microbe Technology

Yang,

Ning,

et al. 2024

Plants

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“…Phosphorus elimination from aquatic environments is commonly done using methods including chemical precipitation (Barca et al 2012), microbial processes (Geng et al 2018), membrane filtration (Yang et al 2014), and adsorption (Ye et al 2017). Adsorption is a highly utilized method for removing phosphorus, known for its versatility in using various adsorbent materials, rapid phosphorus adsorption rates, excellent selectivity, low cost, and renewability (Borno et al 2018;Qi et al 2023;Yin et al 2017). Various phosphate adsorbents have been studied, including carbon-based materials (Khalil et al 2017), iron-based adsorbents (Li et al 2014;Ren et al 2012;Wen et al 2014), and synthetic polymers (Ding et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Novel Fe/Ca oxide co-coated biochar enables efficient phosphorus recovery

Hu,

Jiang,

et al. 2024

Preprint

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Efficient elimination and retrieval of phosphorus from water bodies are crucial for effective eutrophication management and phosphorus reuse. A novel Fe/Ca oxide co-coated modified biochar (FCBC) was synthesized for phosphate recovery using coconut shell biochar as the raw material with ferrous chloride (FeCl2) and calcium peroxide (CaO2) as precursors. FCBC possesses a highly intricate pore structure and an abundance of surface-active groups. Fe/Ca oxides are loaded onto the biochar in the form of Ca2Fe2O5, Fe2O3, and CaCO3. FCBC demonstrates a broad pH tolerance range (pH = 6 – 12) in the aquatic environment. Phosphorus absorption by FCBC was simulated using the proposed pseudo-second-order kinetic and Langmuir model. The maximal saturation adsorption capacity was found to be 53.31 mg P/g. Phosphorus elimination is influenced by the generation of Ca3(PO4)2, intraparticle diffusion, and electrostatic attraction. FCBC produced demonstrated exceptional phosphorus removal effectiveness in the presence of multiple anions, except for wastewater with high concentrations of SO42-, CO32-, HCO3-, and F- (>500 mg/L). The phosphorus removal effectiveness of FCBC in natural water samples collected from ponds, farmlands, and ditches exceeded 94%. This paper presents a novel technique for creating iron-calcium composite-modified biochar, which offers a valuable method for efficiently recovering phosphorus from agricultural surface waters.

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Uncovering the mechanisms of how corn steep liquor and microbial communities minimize cadmium translocation in Chinese cabbage

Li,

Wang,

Wang

et al. 2024

Environ Sci Pollut Res

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Biochar-immobilized Bacillus megaterium enhances Cd immobilization in soil and promotes Brassica chinensis growth

Cited by 16 publications

References 70 publications

Effects of Priestia aryabhattai on Phosphorus Fraction and Implications for Ecoremediating Cd-Contaminated Farmland with Plant–Microbe Technology

Effects of Priestia aryabhattai on Phosphorus Fraction and Implications for Ecoremediating Cd-Contaminated Farmland with Plant–Microbe Technology

Novel Fe/Ca oxide co-coated biochar enables efficient phosphorus recovery

Uncovering the mechanisms of how corn steep liquor and microbial communities minimize cadmium translocation in Chinese cabbage

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