Changes in heavy metal mobility and availability in contaminated wet-land soil remediated using lignin-based poly(acrylic acid)

Zhao, Tianqi; Zhang, Kun; Chen, Junwei; Shi, Xiaobai; Xu, Luhua; Ma, Yanli; Gui-zhen, Fang; Xu, Shu

doi:10.1016/j.jhazmat.2019.01.061

Cited by 54 publications

(14 citation statements)

References 31 publications

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“…On the one hand, soil pH dominates all the redox reactions, sedimentation, dissolution, adsorption and desorption, on the other hand, soil pH has a significant impact on the availability of soil nutrients. The pH of acidic soil increases, the pH of alkaline soil will be reduced, and eventually tend to be neutral (Zhao et al, 2019). The pH of Metasequoia glyptostroboides soils was significantly higher than that of altitude M. glyptostroboides soils, which may be due to the formation of a large number of alkaline ferric carbonates in the soils.…”

Section: Discussionmentioning

confidence: 92%

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Effects of biological metabolism of Metasequoia glyptostroboides on nutrient element content and enzyme activity in seedling soil

Dong¹

2021

Turk J Agric For

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Soil has high spatial variability. Under the change of water level, soil nutrient element content and enzyme activity do not show regular changes. Therefore, the effects of biological metabolism on soil nutrient element content and enzyme activity in the adult stage of Metasequoia glyptostroboides were proposed. The characteristics of the soil were extracted, the irreversibility, accumulation, concealment and refractory rationality of the nutrient element content in the soil were expounded. According to the soil characteristics, the relationship between the nutrient element content and enzyme activity in the soil was analysed. The pH value, organic matter, lead and manganese contents of the soil were determined, and the effects of biological metabolism of M. glyptostroboides on the nutrient content and enzyme activity of the soil were studied.The results showed that the content of nutrient elements in soil was relatively high after the biological metabolism of M. glyptostroboides in the adult stage, the infiltration rate 2 of seedling soil changed, and the effects of different Metasequoia glyptostroboides roots on soil enzyme activities were different.

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Section: Discussionmentioning

confidence: 92%

“…glyptostroboides has many morphologies in its adult life. A study on the effects of texture on nutrient element content and enzyme activity in seedling soil has a better promoting effect (Zheng et al, 2018;Zhao et al, 2019;Imran et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of biological metabolism of Metasequoia glyptostroboides on nutrient element content and enzyme activity in seedling soil

Dong¹

2021

Turk J Agric For

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“…As mentioned earlier, the highest and the lowest soil Pb and Zn availability and subsequent uptake by plant were related to the HEDTA and EGTA chelate, respectively, which is related to the strength of the bond between chelate and heavy metal. On the other hand, free chelate can enter the root and, subsequently, form metal complexes, which enhance metal transport to shoots (26,27). Chelating agents are a group of components that accelerate the release of heavy metals bonded to the solid parts of the soil and are not in the form that can be absorbed by plants due to the disruption of the solid and liquid soil phases' equilibrium and can increase the availability of heavy metals by forming bonds with heavy metals.…”

Section: Discussionmentioning

confidence: 99%

Effect of HEDTA, CDTA, and EGTA Chelates on Remediation of Pb- and Zn-Polluted Soil Using Sunflower and Canola Plants: A Case Study; Soil Around Bama Pb and Zn Mine

Baghaie

Polous

2019

Jundishapur J Health Sci

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Background: The soil heavy metal pollution caused by human activities is one of the main environmental problems. Therefore, it is necessary to use appropriate methods to remediate such soils. Objectives: The current study aimed at investigating the effect of Hydroxyl Ethylene Diamine Tetra Acetic Acid (HEDTA), Trans-1,2-Cyclohexylene Dinitrilo Tetra Acetic Acid (CDTA), and Ethylene Glycol-bis (β-Aminoethyl Ether)-N,N,N',N'-Tetra Acetic Acid (EGTA) chelates on Pb and Zn removal efficiency in a Pb and Zn contaminated soil. Methods: This research was performed as a factorial experiment in a randomized complete block design with four levels of chelate application rate (0, 1.5, 3, and 4.5 mM/kg soil), two levels of chelates application times (one or two weeks before harvesting), and plant types (sunflower or canola). At the end of the experiment, Pb and Zn concentrations in the soil and plant samples were measured and the least significant difference (LSD) test was employed to determine the differences between the means. Results: The effectiveness of studied chelates on the availability of Zn and Pb in soil was in the descending order as HEDTA > CDTA > EGTA. Application of 4.5 mM/kg soil of CDTA chelate under sunflower and canola cultivation caused a significant increase in the availability of Zn and Pb in soil compared to 1.5 mM/kg by 12.2% and 13.3%, respectively. Plant type also had a significant effect on increasing the availability of Pb and Zn in soil. Conclusions: Plant type, application rate, and chelates type are important factors on remediation of heavy metals in contaminated soil. However, the role of physicochemical properties of soil on its heavy metal availability cannot be ignored.

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“…With the acceleration of urbanization and industrialization, environmental pollution is becoming an increasingly serious global problem. Heavy metal ions, which are not biodegradable, are considered to be the most toxic pollutants (Zhao et al, 2019) and pollution of water with heavy metal ions is one of the most serious environmental problems in the world (Bolisetty et al, 2016;Ko et al, 2017). The ability to detect trace amounts of heavy metal ions in water with high sensitivity and specificity is critical for waste management, environmental protection and water safety.…”

Section: Introductionmentioning

confidence: 99%

One-step Synthesis of Biomass-Based Carbon Dots for Detection of Metal Ions and Cell Imaging

et al. 2022

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Biomass-based carbon dots (Bio-CDs) were prepared from dehydroabietic acid using a one-step hydrothermal process. Characterization by TEM, XPS and FTIR spectroscopy showed that the Bio-CDs are spherical nanoparticles containing mainly C, N and O elements, with functional groups such as amino and carbonyl groups on their surface. The optical properties of the Bio-CDs were studied in detail. A solution of Bio-CDs exhibited excitation-dependent blue fluorescence emission. The solution showed excellent photostability under ultraviolet light and the fluorescence intensity could be enhanced by decreasing the temperature. The intensity of fluorescence emission of the solution was essentially unchanged over the pH range 3.91–8.69, and in the presence of different anions and cations, other than Fe3+ and Pb2+. Fe3+ and Pb2+ ions, respectively, quenched and enhanced the intensity of the fluorescence emission of the solution, allowing sensitive and selective detection of Fe3+ (LOD = 2.33 μM, Em = 437 nm) and of Pb2+ (LOD = 0.27 μM, Em = 437 nm and LOD = 0.33 μM, Em = 500 nm). As a further demonstration of potential applications, the Bio-CDs were shown to have low cytotoxicity and to stain cell nuclei as effectively as the commonly used nuclear stain 4′,6-diamino-2-phenylindole (DAPI), demonstrating their promise in the field of cell imaging.

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Changes in heavy metal mobility and availability in contaminated wet-land soil remediated using lignin-based poly(acrylic acid)

Cited by 54 publications

References 31 publications

Effects of biological metabolism of Metasequoia glyptostroboides on nutrient element content and enzyme activity in seedling soil

Effects of biological metabolism of Metasequoia glyptostroboides on nutrient element content and enzyme activity in seedling soil

Effect of HEDTA, CDTA, and EGTA Chelates on Remediation of Pb- and Zn-Polluted Soil Using Sunflower and Canola Plants: A Case Study; Soil Around Bama Pb and Zn Mine

One-step Synthesis of Biomass-Based Carbon Dots for Detection of Metal Ions and Cell Imaging

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