Leaching Performance and Zinc Ions Removal from Industrial Slag Leachate Using Natural and Biochar Walnut Shell

DARAMA>, Sevda Esma; Gürkan, Elif Hatice; Terzi, Özlem; Çoruh, Semra

doi:10.1007/s00267-020-01390-6

Cited by 13 publications

(3 citation statements)

References 40 publications

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“…The tissues ( n = 3) were then oven-dried (70 °C) into constant weight and digested with nitric acid and 30% H 2 O 2 (2:1, v/v). Metal contents, including macro- and micronutrient elements (K, Na, Mg, Cu, Fe, Zn, Mn, and Mo), together with heavy metals (As, Pb, and Cd), were quantified via ICP-MS. A toxicity characteristic leaching procedure (TCLP) was conducted to determine the availability of heavy metals in soil after incubation . Specifically, 2 g of the soil was mixed with 40 mL of a TCLP solution (prepared with glacial acetic acid, pH 2.88) and incubated under 25 °C, 180 rpm for 18 h. The TCLP- extracted forms of heavy metals were quantified via ICP-MS.…”

Section: Methodsmentioning

confidence: 99%

Molybdenum Trioxide Nanoparticles as Promising Stimulators for Facilitating Phytoremediation by Cd Hyperaccumulator Solanum nigrum L

Qin,

Gong,

Zeng

et al. 2024

ACS Sustainable Chem. Eng.

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The application of nanotechnology in phytoremediation of heavy-metal-polluted soil has revitalized this traditional remediation technology with higher efficiencies. Among various material types, micronutrient-based nanomaterials have recently come into the public spotlight because of their positive effects on plant performances without significant perturbation to the environmental media, while their effects and the related mechanisms to enhance the phytoremediation efficiencies remain largely uncovered. In this study, molybdenum trioxide nanoparticles (MoO 3 NPs) and molybdate (Mo 6+ ) were applied in combined heavy-metal-contaminated soils to explore their effects on plant tolerance and phytoextraction ability of a typical Cd hyperaccumulator, Solanum nigrum L. Experimental results indicated that low-level Mo (4 mg kg −1 ) application, especially for MoO 3 NPs, significantly improved the plant performance and Cd accumulation of S. nigrum by activating nutrient assimilation and antioxidative levels, while excessive Mo addition (20 and 40 mg kg −1 ) further exacerbated detrimental effects on plants under combined heavy-metal pressure. Furthermore, nontargeted metabolomic analysis was adopted to uncover the regulating mechanisms of Mo materials on plant responses. Under 4 mg kg −1 treatment, MoO 3 NPs stimulated metabolite expression related to carbohydrate biosynthesis and antioxidative systems to enhance plant tolerance and phytoextraction ability, revealing less metabolic perturbation compared to Mo 6+ treatment. Abscisic acid signaling was considered to be a key regulator contributing to differential regulating pathways between low-level Mo 6+ and MoO 3 NPs treatments. However, under higher Mo levels, both materials led to similar dysregulations in several important pathways concerning amino acid, lipid, and carbohydrate metabolisms. This study provided a theoretical basis for utilizing essential micronutrient-based nanomaterials to facilitate phytoremediation by hyperaccumulators during in situ remediation of heavy metals.

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Section: Methodsmentioning

confidence: 99%

Molybdenum Trioxide Nanoparticles as Promising Stimulators for Facilitating Phytoremediation by Cd Hyperaccumulator Solanum nigrum L

Qin,

Gong,

Zeng

et al. 2024

ACS Sustainable Chem. Eng.

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“…Biochar is a carbonaceous porous material that is produced by heating waste organic biomass in limited to no oxygen environment by a process called "Pyrolysis" (Rahman and Hopke, 2017;Zahedifar, 2020). Biochar has amassed popularity as a mitigation strategy for carbon sequestration in agricultural soils, which can, at the same time, improve soil fertility as well as enhance soil water retention (Darama et al, 2020;Wang et al, 2010). Biochar itself constitute of plant soluble nutrients, exhibits high cation exchange capacity (CEC) for retaining nutrients and provides a favourable media for microbial activity.…”

Section: Introductionmentioning

confidence: 99%

Influence of biochar on improving hydrological and nutrient status of two decomposed soils for yield of medicinal plant - Pinellia ternata

Touyon

Bordoloi

2023

Journal of Hydrology and Hydromechanics

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The root tuber of Pinellia ternata has been used as a traditional therapeutic herbal medicine. It is reported to impart beneficial attributes in recovering COVID-19 patients. To meet an increasing demand of P. ternata, this study is intended to investigate the effects of biochar on the soil hydrological and agronomic properties of two decomposed soils (i.e., completely decomposed granite (CDG) and lateritic soil) for the growth of P. ternata. The plant was grown in instrumented pots with different biochar application rate (0%, 3% and 5%) for a period of three months. Peanut shell biochar inclusion in both soils resulted in reduction of soil hydraulic conductivity and increase in soil water retention capacity. These alterations in hydrological properties were attributed to measured change in total porosity, biochar intra pore and hydrophilic functional groups. The macro-nutrient (i.e., N, P, K, Ca, and Mg) concentration of both soils increased substantially, while the pH and cation exchange capacity levels in the amended soils were altered to facilitate optimum growth of P. ternata. The tuber biomass in biochar amended CDG at all amendment rate increases by up to 70%. In case of lateritic soil, the tuber biomass increased by 23% at only 5% biochar application rate. All treatments satisfied the minimum succinic acid concentration required as per pharmacopoeia standard index. The lower tuber biomass exhibits a higher succinic acid concentration regardless of the soil type used to grow P. ternata. The biochar improved the yield and quality of P. ternata in both soils.

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“…Numerous particles (like cellulose, and hemicellulose, lignin) and polyphenolic bunches are available in this material, and they assume a significant part in restricting to natural mixtures through different components, for example, particle trade, complexation, and hydrogen holding. Similarly, the efficacy of agro-waste walnut shell biochar adsorbent in removing nickel and lead from wastewater has been documented [36].…”

Section: Introductionmentioning

confidence: 99%

Comparative Kinetic Study of the Adsorption Capacity of Walnut Shell and Its Biochar for Chromium Removal from Wastewater

Rizwan,

Momina,

Afzal

et al. 2023

IRJPAC

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Chromium is a toxic heavy metal that can pollute water from industrial and agricultural activities. Adsorption is a promising method for removing chromium from wastewater, and walnut shell is a sustainable and abundant biomass that can be used to produce biochar for adsorption. This study compares the effectiveness of walnut shell and walnut shell biochar for chromium removal from wastewater using adsorption. The effects of various parameters on chromium adsorption, such as pH, biochar dosage, and contact time, are investigated. The results show that both walnut shell and walnut shell biochar are effective adsorbents for chromium removal. However, walnut shell biochar exhibits a higher adsorption capacity and faster adsorption kinetics than walnut shell. The findings of this study suggest that walnut shell biochar is a promising adsorbent for chromium removal from wastewater. It is a sustainable and low-cost material that can be used to develop effective and efficient wastewater treatment systems. The kinetics of Cr adsorption will examine using pseudo-first-order, pseudo-second-order, and adsorption isotherms. The results demonstrated that the adsorption of Cr onto WS and BC followed pseudo-second-order kinetics, suggesting chemisorption as the rate-limiting step.

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Leaching Performance and Zinc Ions Removal from Industrial Slag Leachate Using Natural and Biochar Walnut Shell

Cited by 13 publications

References 40 publications

Molybdenum Trioxide Nanoparticles as Promising Stimulators for Facilitating Phytoremediation by Cd Hyperaccumulator Solanum nigrum L

Molybdenum Trioxide Nanoparticles as Promising Stimulators for Facilitating Phytoremediation by Cd Hyperaccumulator Solanum nigrum L

Influence of biochar on improving hydrological and nutrient status of two decomposed soils for yield of medicinal plant - Pinellia ternata

Comparative Kinetic Study of the Adsorption Capacity of Walnut Shell and Its Biochar for Chromium Removal from Wastewater

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