Remediation for trace metals in polluted soils by turfgrass assisted with chemical reagents

Li, Feili; Jin, Hui; Wu, Xingfei; Liu, Yannian; Chen, Xiaoling; Wang, Jiade

doi:10.1016/j.chemosphere.2022.133790

Cited by 7 publications

(2 citation statements)

References 62 publications

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“…(2) The chelation reaction: CA and TA have more ligands, which are conducive to chelating HMs. OA has a low removal rate for Zn, Cu, and Cd, which is attributed to the formation of insoluble oxalate precipitation [93]. Thus, the possible precipitation interactions between LMWOA and metals must be considered.…”

Section: Low-molecular-weight Organic Acids (Lmwoa)mentioning

confidence: 99%

Remediation of Heavy Metal-Contaminated Soils with Soil Washing: A Review

Zheng

Peng

et al. 2022

Sustainability

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Soil with heavy metals’ contamination has caused worldwide concern, and there is an increasing interest in the application of washing agents for the remediation of soils with heavy metals’ contamination. The review summarizes the recent findings about soil washing with different washing agents. For soil washing technologies, the solubilizing capability, toxicity, and biocompatibility of agents are essential concerns. Washing agents can enhance heavy metals’ desorption and removal from soil. Inorganic acids/bases/salts, synthetic surfactants, and synthetic chelators are often limited due to their adverse effects on soil. Biosurfactants, HAs (humic acids), and LMWOA (low-molecular-weight organic acids) are suggested washing agents, but the limitation of their low production needs to be conquered. Moreover, both washing with a mixture agent and sequential washing have often been adopted to improve the overall capacity of the washing agent for decontamination. Mixture washing can obtain the synergetic effect for soil washing and increase washing efficiency. Sequential washing can apply an agent with a high heavy metals removal rate. However, this may cause environmental risks in the early stage, and then remove the washing agent injected in the early stage by the secondary washing stage. Overall, the already known cases reveal the good prospect of soil washing for soil remediation.

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Section: Low-molecular-weight Organic Acids (Lmwoa)mentioning

confidence: 99%

Remediation of Heavy Metal-Contaminated Soils with Soil Washing: A Review

Zheng

Peng

et al. 2022

Sustainability

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“…Actually, because of the food security problem for humans, not all plants are suitable for phytoremediation under Cd contamination aera. However, turfgrass could be a good candidate plant for phytoremediation in heavy metal-contaminated regions with great degradation ability and ornamental value [7,8]. Cd is an ion element that is nonessential for the growth and development of plants.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis Reveals the Stress Tolerance Mechanisms of Cadmium in Zoysia japonica

Xu,

Li,

et al. 2023

Plants

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Cadmium (Cd) is a severe heavy metal pollutant globally. Zoysia japonica is an important perennial warm-season turf grass that potentially plays a role in phytoremediation in Cd-polluted soil areas; however, the molecular mechanisms underlying its Cd stress response are unknown. To further investigate the early gene response pattern in Z. japonica under Cd stress, plant leaves were harvested 0, 6, 12, and 24 h after Cd stress (400 μM CdCl2) treatment and used for a time-course RNA-sequencing analysis. Twelve cDNA libraries were constructed and sequenced, and high-quality data were obtained, whose mapped rates were all higher than 94%, and more than 601 million bp of sequence were generated. A total of 5321, 6526, and 4016 differentially expressed genes were identified 6, 12, and 24 h after Cd stress treatment, respectively. A total of 1660 genes were differentially expressed at the three time points, and their gene expression profiles over time were elucidated. Based on the analysis of these genes, the important mechanisms for the Cd stress response in Z. japonica were identified. Specific genes participating in glutathione metabolism, plant hormone signal and transduction, members of protein processing in the endoplasmic reticulum, transporter proteins, transcription factors, and carbohydrate metabolism pathways were further analyzed in detail. These genes may contribute to the improvement of Cd tolerance in Z. japonica. In addition, some candidate genes were highlighted for future studies on Cd stress resistance in Z. japonica and other plants. Our results illustrate the early gene expression response of Z. japonica leaves to Cd and provide some new understanding of the molecular mechanisms of Cd stress in Zosia and Gramineae species.

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Effects of mowing on Pb accumulation and transport in Cynodon dactylon (L.) Pers

Cai

Peng

et al. 2023

Environ Sci Pollut Res

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Remediation for trace metals in polluted soils by turfgrass assisted with chemical reagents

Cited by 7 publications

References 62 publications

Remediation of Heavy Metal-Contaminated Soils with Soil Washing: A Review

Remediation of Heavy Metal-Contaminated Soils with Soil Washing: A Review

Transcriptome Analysis Reveals the Stress Tolerance Mechanisms of Cadmium in Zoysia japonica

Effects of mowing on Pb accumulation and transport in Cynodon dactylon (L.) Pers

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