International Journal of Phytoremediation最新文献_第2页

Integrated transcriptome and metabolomics analysis revealed the molecular response mechanism of iris tectorum under chromium stress. 综合转录组学和代谢组学分析揭示了鸢尾对铬胁迫的分子响应机制。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-11 DOI: 10.1080/15226514.2025.2514890

Zhou Yang, Wei Zhao, Lili Liang, Lei Fang

{"title":"Integrated transcriptome and metabolomics analysis revealed the molecular response mechanism of iris tectorum under chromium stress.","authors":"Zhou Yang, Wei Zhao, Lili Liang, Lei Fang","doi":"10.1080/15226514.2025.2514890","DOIUrl":"https://doi.org/10.1080/15226514.2025.2514890","url":null,"abstract":"The molecular stress mechanisms of chromium(Cr) tolerance in plants is elucidated in order to assess the persistent environmental effects of chromium stress. In this study, I. tectorum was employed as the experimental model to scrutinize Cr accumulation and transportation, along with physiological alterations including antioxidants, metabolites, and functional genes in plants under Cr stress. The findings exhibited a significant reduction in plant biomass under Cr stress, accompanied by pronounced enhancements in Cr enrichment capacity and homeostatic oxidative stress ability. Metabolomic analysis revealed that Cr stress primarily affected nine metabolic pathways in I. tectorum, involving 25 differentially expressed metabolites (DEMs). In addition, the transcriptomic analysis identified a total of 19,136 differentially expressed genes (11994 up-regulated and 7142 down-regulated DEGs) across the three comparison groups. These DEGs were primarily associated with cell wall biosynthesis, oxidative stress response, signal transduction, and plant carbohydrate metabolism pathways. A comprehensive analysis unveiled the pivotal roles of the cell wall biosynthetic pathway and the oxidative stress system in I. tectorum for Cr detoxification. In conclusion, this study encompassed a comprehensive investigation to unravel the molecular detoxification mechanism employed by I. tectorum, a wetland plant, in combating Cr stress utilizing diverse methodologies.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-16"},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144266144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytoremediation of polyethylene terephthalate (PET) and polypropylene (PP) microplastics by alfalfa (Medicago sativa L.). 紫花苜蓿对聚对苯二甲酸乙二醇酯（PET）和聚丙烯（PP）微塑料的植物修复。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-10 DOI: 10.1080/15226514.2025.2516249

Mojgan Rokni, Karim Ebrahimpour

{"title":"Phytoremediation of polyethylene terephthalate (PET) and polypropylene (PP) microplastics by alfalfa (Medicago sativa L.).","authors":"Mojgan Rokni, Karim Ebrahimpour","doi":"10.1080/15226514.2025.2516249","DOIUrl":"https://doi.org/10.1080/15226514.2025.2516249","url":null,"abstract":"Phytoremediation is a plant-based approach for effective biodegradation of environmental pollutants but its efficacy for MPs mainly remains unknown. In this context, in the present study, the biodegradation of polyethylene terephthalate (PET) and polypropylene (PP) microplastics by alfalfa (Medicago sativa L.) was investigated for one year. Treatment with different types and concentrations of MPs showed no significant effects on alfalfa germination rate and growth. Bacterial communities in the rhizosphere of alfalfa with MPs treatment increased significantly compared to untreated controls. Types of MPs showed no effects on bacterial counts. Dehydrogenase (DHO) enzyme activity in the rhizosphere of plants with MPs treatment was significantly higher than plants without MPs treatment but the concentration and types of MPs showed no significant effects on rhizosphere DHO activity. The mean degradation rate for PET-MPs and PP-MPs was 0.29% and 0.44%, respectively. The increase of MPs concentration in the soil from 2 to 10 g/kg elevated the mean degradation rate from 0.26% to 0.48%. Rhizodegradation of MPs is a consequence of complex interactions between MPs, root exudates and microbial activities in the rhizosphere. Therefore, phytoremediation using alfalfa could be considered as a potential method for in situ removal of MPs from the soil.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-12"},"PeriodicalIF":3.4,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144258072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Active botanical biofilters for nitrogen dioxide and ozone removal using granular activated carbon. 使用颗粒活性炭去除二氧化氮和臭氧的活性植物生物过滤器。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-09 DOI: 10.1080/15226514.2025.2512171

Stephen Matheson, Robert Fleck, Thomas Pettit, Peter J Irga, Fraser R Torpy

{"title":"Active botanical biofilters for nitrogen dioxide and ozone removal using granular activated carbon.","authors":"Stephen Matheson, Robert Fleck, Thomas Pettit, Peter J Irga, Fraser R Torpy","doi":"10.1080/15226514.2025.2512171","DOIUrl":"https://doi.org/10.1080/15226514.2025.2512171","url":null,"abstract":"Botanical biofilters can remediate numerous air pollutants and show potential for the removal of indoor NO2 and O3. Granular Activated Carbon (GAC) is a promising new addition to botanical biofilter growth media, increasing efficiency in Volatile Organic Compound (VOC) remediation, but it remains untested for other gaseous pollutants. This work assessed the capacity of an active botanical biofilter with a GAC growth medium to filter gaseous NO2 and O3 within a closed-loop flow-through reactor. We incorporate the effects associated with two plant species, Spathiphyllum Wallisi and Syngonium Podophyllum, substrate moisture, and varying ratios of GAC to coco coir on pollutant removal efficiency. All GAC containing substrates exhibited exponential decay for NO2, with a 50% GAC wetted substrate composition producing the peak decay rate (0.27 ± 0.048 ppb.s-1) and Clean Air Delivery Rate (CADR) at 1013.0 ± 173.1 m3·h-1·m-3of biofilter substrate. All treatments demonstrated non-significant removal of elevated O3, possibly due to higher concentrations tested in the current work. There was no difference in NO2 and O3 removal rates or CADR between the two-plant species. This work provides promising results for the use of GAC within an active botanical biofilter to improve the removal of high concentrations of NO2.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-13"},"PeriodicalIF":3.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144247830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioenergy potential and biomass yield of floating macrophytes grown in impacted environments. 受影响环境中浮游植物的生物能源潜力和生物量产量。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-06 DOI: 10.1080/15226514.2025.2515574

Marta V Buss, Daiane S B Mignoni, William Michelon, Elis D Schutz, Augusto D Luchessi, Cícero Bley, Jean C Menezes, Estela Nunes

{"title":"Bioenergy potential and biomass yield of floating macrophytes grown in impacted environments.","authors":"Marta V Buss, Daiane S B Mignoni, William Michelon, Elis D Schutz, Augusto D Luchessi, Cícero Bley, Jean C Menezes, Estela Nunes","doi":"10.1080/15226514.2025.2515574","DOIUrl":"https://doi.org/10.1080/15226514.2025.2515574","url":null,"abstract":"Floating aquatic macrophytes, particularly duckweeds, are recognized for their phytoremediation capabilities and potential as bioenergy feedstocks. This study investigates duckweed biomass collected from four distinct environments, two natural freshwater ponds, a settling and a polishing pond. Wolffia brasiliensis from the polishing and settling ponds exhibited the highest protein content (∼45%), while Wolffia brasiliensis and Lemna minuta from the natural pond showed the highest carbohydrate content, both exceeding 35%. The highest biogas production under swine manure co-digestion was observed for Wolffia brasiliensis from polishing pond (403.5 ± 8.1 LNbiogas kg VSad-1), despite its lower volatile solids (VS) content (560.5 ± 36.1 g kg-1), indicating high biodegradability. Wolffia brasiliensis from settling pond, with the highest VS content (736.4 ± 2.5 g kg-1), also showed high biogas yield (400 ± 9.5 LNbiogas kg VSad-1). For natural pond, Wolffia brasiliensis produced 450 ± 6.7 LNbiogas kg VSad-1 with a VS content of 635.0 ± 44.8 g kg-1; in contrast, Lemna minuta, despite a high VS content (693.2 ± 33 g kg-1), yielded the lowest biogas (190.3 ± 3.6 LNbiogas kg VSad-1). The findings demonstrate the potential of duckweed biomass, from different aquatic environment, for biogas production including co-digestion based processes.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-10"},"PeriodicalIF":3.4,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144234042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal evaluation of pollutant removal in a vertical constructed wetland in Tunisia's arid climate. 突尼斯干旱气候下垂直人工湿地污染物去除的季节性评价。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-05 DOI: 10.1080/15226514.2025.2512172

Hiba Tlili, Mahmoud Bali, Rachid Boukchina

{"title":"Seasonal evaluation of pollutant removal in a vertical constructed wetland in Tunisia's arid climate.","authors":"Hiba Tlili, Mahmoud Bali, Rachid Boukchina","doi":"10.1080/15226514.2025.2512172","DOIUrl":"https://doi.org/10.1080/15226514.2025.2512172","url":null,"abstract":"Intermittent planted filters are effective biological treatment systems designed to oxidize and purify urban wastewater at a low cost while minimizing environmental impacts. This study introduces a novel adaptation of vertical flow constructed wetlands (VFCWs) specifically tailored to the arid climate of southeastern Tunisia, with a focus on optimizing seasonal performance and addressing regional wastewater treatment challenges. By integrating a unique two-stage gravel-sand design, both stages of which are fed vertically, and leveraging solar-powered operations, this research offers valuable insights into the dynamics of pollutant and pathogen removal under extreme environmental conditions. Through a combination of laboratory and field experiments, the research demonstrated significant reductions in chemical oxygen demand, biochemical oxygen demand, ammonia-nitrogen, and ortho-phosphate, achieving removal efficiencies of 95.2%, 96.1%, 78.2%, and 100%, respectively. Notably, an increase in nitrate levels at the filter outlet suggests favorable nitrifying conditions that may enhance plant physiological growth. The treatment system also effectively removed 2, 1.56, and 1.18 log units of total coliforms, fecal coliforms, and fecal streptococci, respectively. Seasonal variations, particularly in air temperature and sunlight duration, significantly influenced pollutant removal rates, with higher efficiencies observed during the warmer summer and spring months, which promote both plant growth and microbial activity.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-16"},"PeriodicalIF":3.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144225424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remediation of nickel-contaminated wastewater-irrigated soil using agricultural waste: a sustainable approach. 利用农业废弃物修复镍污染废水灌溉土壤：一种可持续的方法。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-04 DOI: 10.1080/15226514.2025.2512987

Rosin K G, Sumit Jangra, Khajanchi Lal, Neeta Dwivedi, Anil K Mishra, Brahmanand P S, Manoj Pandey, Susama Sudhishri, Sarvendra Kumar

{"title":"Remediation of nickel-contaminated wastewater-irrigated soil using agricultural waste: a sustainable approach.","authors":"Rosin K G, Sumit Jangra, Khajanchi Lal, Neeta Dwivedi, Anil K Mishra, Brahmanand P S, Manoj Pandey, Susama Sudhishri, Sarvendra Kumar","doi":"10.1080/15226514.2025.2512987","DOIUrl":"https://doi.org/10.1080/15226514.2025.2512987","url":null,"abstract":"A study was conducted to evaluate the efficacy of rice husk (RH), rice straw (RS), and sawdust (SD) at application rates of 0.25% and 0.5% w/w to mitigate nickel (Ni) contamination in soil irrigated with Ni-spiked wastewater (1 ppm and 2 ppm). The study aimed to reduce Ni bioavailability in soil using these amendments while also evaluating their effects on soil nutrients, Ni content, physiology and yield of spinach. The application of 0.5% rice husk significantly enhanced spinach growth and physiological parameters, with total dry matter production of 4.1 t ha-1, and led to higher nickel accumulation in spinach compared to its 0.25% rate. RH (0.5%) incorporation significantly (p < 0.05) reduced Ni concentration in shoot (50 and 47%) and root tissues (50 and 37%) of spinach compared to SD and RS amendments. Soil organic carbon and nitrogen levels significantly increased with the amendments, while DTPA-extractable nickel -Ni was minimized in plots treated with 0.5% RH, indicating effective nickel immobilization. Amendments with RH (0.5%) demonstrated the lowest bioconcentration factor(0.107) and hazard quotient (2.2 × 10-4), underscoring its superior potential for Ni remediation in soil compared to RS and SD. The study demonstrates RH's effectiveness in mitigating nickel contamination and enhancing soil health and crop productivity.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-14"},"PeriodicalIF":3.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of copper toxicity on physiological and biochemical parameters in Vigna radiata L. plants. 铜毒性对紫穗槐植株生理生化参数的影响。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-04 DOI: 10.1080/15226514.2025.2512982

Deepshika Parkar, Vishal Jamuni, Royston D'silva, Shristi Chahal, Rupali Bhandari

{"title":"Impact of copper toxicity on physiological and biochemical parameters in Vigna radiata L. plants.","authors":"Deepshika Parkar, Vishal Jamuni, Royston D'silva, Shristi Chahal, Rupali Bhandari","doi":"10.1080/15226514.2025.2512982","DOIUrl":"https://doi.org/10.1080/15226514.2025.2512982","url":null,"abstract":"Copper (Cu) is a toxic metal that accumulates in soil due to agricultural and industrial activities, potentially impacting plant growth and productivity. Our study examined the phytotoxic effects of Cu on Vigna radiata L. by exposing plants to a series of Cu concentrations (1, 4 and 7 mM) under controlled conditions. Growth parameters, photosynthetic performance, biochemical traits, and oxidative stress indicators were analyzed in 21-day-old Cu-treated plants and compared with control plants. The results demonstrated a concentration-dependent decline in shoot and root biomass, relative water content (RWC), pigment content, photosynthetic efficiency, carbohydrates, and lipid content. Conversely, oxidative stress markers such as malondialdehyde (MDA), electrolyte leakage, superoxide dismutase (SOD) and ascorbate peroxidase (APX) activity and proline accumulation increased significantly with increasing Cu concentrations, indicating cellular damage. Notably, protein levels increased with increased Cu concentrations, which may contribute to their tolerance to metal stress, however, it was insufficient to mitigate stress. Further research is needed to validate these findings and explore the mechanisms underlying copper stress tolerance.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-12"},"PeriodicalIF":3.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of vetiver grass phytoremediation for trace element removal in dioxin-contaminated soils at Bien Hoa Airbase, Vietnam. 香根草植物修复在越南边化空军基地二恶英污染土壤中微量元素去除的应用

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-02 DOI: 10.1080/15226514.2025.2509024

Thao Thi Thanh Nguyen, Huy Van Dinh, Tin Duc Quach, Quoc Dinh Nguyen, Van-Hao Duong, Martine Leermakers, Yue Gao, Huong Thi Thuy Ngo

{"title":"Application of vetiver grass phytoremediation for trace element removal in dioxin-contaminated soils at Bien Hoa Airbase, Vietnam.","authors":"Thao Thi Thanh Nguyen, Huy Van Dinh, Tin Duc Quach, Quoc Dinh Nguyen, Van-Hao Duong, Martine Leermakers, Yue Gao, Huong Thi Thuy Ngo","doi":"10.1080/15226514.2025.2509024","DOIUrl":"https://doi.org/10.1080/15226514.2025.2509024","url":null,"abstract":"The study assessed trace element contamination and the phytoremediation potential of vetiver grass (Chrysopogon zizanioides) for removing toxic elements (As, Cd, Cr, Cu, Ni, Pb, and Zn) from dioxin-contaminated soils at Bien Hoa Airbase, Vietnam. Over a 40-month field experiment, six 100 m2 plots (three planted with vetiver, three controls) were monitored for trace element concentrations, distribution, ecological risk, and vetiver uptake, with soil and plant samples analyzed every 5-6 months. Significant contamination was detected, with Cd (max. 26 mg/kg), Zn (max. 373 mg/kg), and Cu (max. 166 mg/kg) surpassing national and international limits. The modified contamination degree (mCd) ranged from moderate (2.97) to extremely high (30.19), with Cd posing the highest ecological risk (Er 328-5650). Vetiver effectively remediated Cd and Zn, primarily through phytostabilization-accumulating metals in roots (max BAF: 3.15) while minimizing translocation to shoots (low TF: 0.008-0.334). However, the remediation of As, Cr, Cu, Ni, and Pb was limited due to their low mobility and strong binding to stable soil fractions. These findings highlight vetiver grass as a cost-effective solution for Cd and Zn phytoremediation, stressing the need to consider element speciation for optimal soil rehabilitation and broader application in complex contaminated environments.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-10"},"PeriodicalIF":3.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of antioxidant and morphophysiological alterations in polyethylene glycol primed Raphanus sativus L. under sodium fluoride stress. 氟化钠胁迫下聚乙二醇对莴苣抗氧化及形态生理的影响

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-01 DOI: 10.1080/15226514.2025.2505673

Muhammad Sajid, Shakil Ahmed, Rehana Sardar, Muhammad Naeem Safdar, Nasim Ahmad Yasin

{"title":"Evaluation of antioxidant and morphophysiological alterations in polyethylene glycol primed Raphanus sativus L. under sodium fluoride stress.","authors":"Muhammad Sajid, Shakil Ahmed, Rehana Sardar, Muhammad Naeem Safdar, Nasim Ahmad Yasin","doi":"10.1080/15226514.2025.2505673","DOIUrl":"https://doi.org/10.1080/15226514.2025.2505673","url":null,"abstract":"Among the abiotic stresses that adversely affect plants, sodium fluoride (NaF) interferes with physicochemical parameters, reducing growth, yield, and biomass accumulation in various plants, particularly radish (Raphanus sativus L.). Sodium fluoride negatively interacts with several pathways related to photosynthesis, protein synthesis, and antioxidant activity. This study was designed to discover the potential of polyethylene glycol (PEG) seed priming in alleviating NaF stress in R. sativus. During this study, seeds of R. sativus were divided into two groups: primed seeds and nonprimed seeds. Polyethylene glycol was used at four different concentrations (PEG-10%, PEG-20%, PEG-30%, and PEG-40%) for seed priming, and PEG-30% proved to be the most effective against the adverse effects of NaF. Compared with nonprimed plants, plants primed with PEG-30% showed increase in various growth parameters, including shoot length (51.13%), root length (46.06%), shoot fresh weight (58.18%), shoot dry weight (86.62%), root fresh weight (74.62%) and root dry weight (66.66%) under NaF stress. A similar trend was observed for photosynthetic pigments and total soluble proteins under stress. This is the first research showing the stress ameliorating and growth-improving role of PEG priming in R. sativus under NaF stress.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-15"},"PeriodicalIF":3.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144199043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Passivation effects of different ratios of fly ash and straw on heavy metals in coal gangue-contaminated soil in Guizhou Province, China. 粉煤灰与秸秆不同配比对贵州煤矸石污染土壤中重金属的钝化效果

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-05-31 DOI: 10.1080/15226514.2025.2511154

Xiuyue Xu, Jun Ren, Ningning Wang, Huiling Dong

{"title":"Passivation effects of different ratios of fly ash and straw on heavy metals in coal gangue-contaminated soil in Guizhou Province, China.","authors":"Xiuyue Xu, Jun Ren, Ningning Wang, Huiling Dong","doi":"10.1080/15226514.2025.2511154","DOIUrl":"https://doi.org/10.1080/15226514.2025.2511154","url":null,"abstract":"To simultaneously achieve the stabilization of heavy metals in coal gangue- contaminated soil and the resource utilization of solid waste, fly ash (FA) and corn straw (CS) were adopted as passivators to construct a low-cost and sustainable remediation system. Through pot experiments, FA, CS and their mixture (FC) (mass ratio 1:1) with different addition ratios (1, 3, 6%) were applied to contaminated soil, and ryegrass was planted to evaluate the passivation effect. By analyzing the morphological transformation of heavy metals and their accumulation in plants, the passivation effects on various heavy metals were evaluated. Results showed that FA converted exchangeable iron (Fe), copper (Cu), zinc (Zn) and cadmium (Cd) to a residual state, and CS reduced the reducible Cu and Zn concentrations. The FC transformed Fe, manganese (Mn), lead (Pb) and Cd from exchangeable and reducible states to oxidizable and residual states. At the 6% addition rate, the passivation efficiencies of FC for Fe, Mn, Pb and Cd reached 34.33, 9.98, 14.92 and 17.32%, respectively. Meanwhile, FC inhibited the enrichment of Cu, Zn, Pb, and Cd in ryegrass. Research indicates that FC is more conducive to passivating heavy metals in gangue-contaminated soil, with a 6% mixture ratio being the optimal recommended proportion.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-10"},"PeriodicalIF":3.4,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0