Bioavailability Assessment of Heavy Metals and Organic Pollutants in Water and Soil Using DGT: A Review

Zhu, Qing; Ji, Jing; Tang, Xuejiao; Wang, Cuiping; Sun, Hongwen

doi:10.3390/app13179760

Cited by 9 publications

(2 citation statements)

References 129 publications

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“…In addition, in the case of WDC and in situ burning, it can be assumed that the contained heavy metals could undergo a stationary bio-geochemical cycle: that is, heavy metals are (i) absorbed in the biomass during its growth and then (ii) released during the UOL of the biochar, with consequential no net-addition of elemental mass to the soil. However, the chemical form of heavy metals concentrated into biochar may differ compared with their initial chemical form, as well as their bioavailability and toxicity [81][82][83]. The purpose of this study is not to exacerbate the debate but to draw attention to the categories potentially affected by the possible presence of metals, which will need to be investigated and evaluated on a case-by-case basis based on primary information.…”

Section: Discussionmentioning

confidence: 99%

Life Cycle Assessment of a Wood Biomass Gasification Plant and Implications for Syngas and Biochar Utilization

Arfelli,

Tosi,

Ciacci

et al. 2024

Energies

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The growing attention regarding the environmental challenges in the energy sectors pushes the industrial system toward the investigation of more sustainable and renewable energy sources to replace fossil ones. Among the promising alternatives, biomass is considered a valid source to convert the system and to reduce the fossil fraction of the national energy mixes, but its multiple potential uses need an environmental evaluation to understand the actual benefit when it is used as an energy resource. For this purpose, life cycle assessment (LCA) is applied to a wood biomass gasification system aimed to produce electricity and heat generated after the combustion of the produced syngas and the management of the biochar. The aim is to provide a quantitative comparison of (i) a baseline scenario where wood biomass is sourced from waste and (ii) a second scenario where wood biomass is drawn from dedicated cultivation. A further evaluation was finally applied to investigate the environmental implications associated with the biochar composition, assuming it was used on land. The proposed strategies resulted in an environmental credit for both the examined scenarios, but the outcomes showed a net preference for the baseline scenario, resulting in better environmental performances for all the examined categories with respect to the second one. It underlines the potentialities of using waste-sourced biomass. However, according to the Climate Change category, if on-site dedicated biomass cultivation is assumed for the second scenario, the baseline is considered preferable only if the biomass transportation distance is <600 km, which is estimated as a theoretical distance for scenarios to break even. Finally, biochar composition proved a particular concern for toxicity-related categories. This study highlights the importance of applying objective and standardized methodologies such as LCA to evaluate energy production systems based on alternative sources and to support decision-making toward achieving sustainability goals.

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Section: Discussionmentioning

confidence: 99%

Life Cycle Assessment of a Wood Biomass Gasification Plant and Implications for Syngas and Biochar Utilization

Arfelli,

Tosi,

Ciacci

et al. 2024

Energies

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“…However, specific components of organic matter, known as chelating agents, can form soluble complexes with toxic metals/metalloids, enhancing their bioavailability. Moreover, organic matter can affect soil pH and redox potential, indirectly influencing toxic metal/metalloid bioavailability [19,20,28,29].…”

Section: Bioavailability Of Toxic Metals/metalloids In Soilmentioning

confidence: 99%

Heavy Metal Contamination in Soil: Implications for Crop Resilience and Abiotic Stress Management

Almotairy

2024

Abiotic Stress in Crop Plants - Ecophysiological Responses and Molecular Approaches

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This chapter rigorously examines soil toxic metal/metalloid contamination and its profound implications on crop resilience, focusing on abiotic stress conditions. It begins by elucidating the natural and anthropogenic origins of soil contamination, illustrating how plants absorb these toxicants, and elaborating on their physio-molecular responses. The chapter accentuates the detrimental manifestations of impaired photosynthesis, nutrient uptake, and oxidative stress management, underscoring the urgent need for effective mitigation strategies. Phytoremediation and genetic engineering advancements are explored as promising strategies to optimize plant resilience in contaminated environments. Novel methodologies, including phytochelatins and the strategic application of genetic engineering, demonstrate potential in improving plant growth and resilience, showcasing significant advancements toward sustainable agricultural practices. Moreover, the interaction between plants and soil microbes is dissected, revealing a symbiotic relationship that influences the bioavailability of toxic metals/metalloids and optimizes plant health under stress conditions. This insight into microbial assistance opens new avenues for research and application in crop management and soil remediation. This chapter contributes essential knowledge toward bolstering crop resilience against toxic metal/metalloid contamination by presenting cutting-edge research findings and sophisticated mitigation techniques. It emphasizes the critical role of innovative research in overcoming the challenges posed by soil contamination, paving the way for achieving sustainable agricultural productivity and food security in the face of environmental stressors.

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The accumulation of cadmium and lead in wheat grains is primarily determined by the soil-reducible cadmium level during wheat tillering

Wang,

Zhang,

Gao

et al. 2024

Chemosphere

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Bioavailability Assessment of Heavy Metals and Organic Pollutants in Water and Soil Using DGT: A Review

Cited by 9 publications

References 129 publications

Life Cycle Assessment of a Wood Biomass Gasification Plant and Implications for Syngas and Biochar Utilization

Life Cycle Assessment of a Wood Biomass Gasification Plant and Implications for Syngas and Biochar Utilization

Heavy Metal Contamination in Soil: Implications for Crop Resilience and Abiotic Stress Management

The accumulation of cadmium and lead in wheat grains is primarily determined by the soil-reducible cadmium level during wheat tillering

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