International Journal of Phytoremediation最新文献

Mitigation of antibiotic resistance: the efficiency of a hybrid subsurface flow constructed wetland in the removal of resistant bacteria in wastewater. 缓解抗生素耐药性：混合地下流人工湿地去除废水中耐药细菌的效率。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-19 DOI: 10.1080/15226514.2025.2516250

Amina Farrukh Alavi, Sara Malik, Safia Ahmed, Bilal Ahmed, Muhammad Salman, Ayesha Farooq, Iffat Naz

{"title":"Mitigation of antibiotic resistance: the efficiency of a hybrid subsurface flow constructed wetland in the removal of resistant bacteria in wastewater.","authors":"Amina Farrukh Alavi, Sara Malik, Safia Ahmed, Bilal Ahmed, Muhammad Salman, Ayesha Farooq, Iffat Naz","doi":"10.1080/15226514.2025.2516250","DOIUrl":"https://doi.org/10.1080/15226514.2025.2516250","url":null,"abstract":"This research investigates the effectiveness of a lab-scale hybrid subsurface flow constructed wetland (HSSFCW) for removing wastewater contaminants, including antibiotic-resistant bacteria (ARB), genes (ARGs) and antibiotics. The results suggested that HSSFCW demonstrated a high removal efficiency for COD (89%) and BOD (88.9%), while lower efficiencies were observed for salts, TDS, EC, and TKN. Further, various bacteria such as Enterobacter cloacae, Serratia liquefaciens and Serratia odorifera were detected in the plant rhizosphere, while Acinetobacter baumanii and Staphylococcus spp. were identified as biofilm formers on the wetland media. The mean removal efficiency of 70.44, 65.99, 70.66 and 51.49% was observed for total heterotrophic bacteria; Cefixime (Cef)-, Ciprofloxacin (Cip)-, and Linezolid (Lzd)-resistant bacteria. Upon chlorination of effluent samples, Cef-, Cip- and Lzd-resistant bacteria were effectively inactivated at 30, 15 and 7.5 mg Cl2 min/L, respectively. The wetland achieved a removal efficiency of 83.85% for Cip and 100% for Lzd at week 12 with p = 0.040 and p < 0.001, respectively. Further, a log reduction of 0.66 for 16S, 0.82 for blaTEM, 0.61 for blaCTX, and 0.48 for blaOXA was observed. Thus, HSSFCW was observed to be efficient in removing organic contaminants, ARBs, ARGs and antibiotics from domestic wastewater and can be upgraded under natural environments.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-12"},"PeriodicalIF":3.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325678","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

NiO-biomass microcomposite for the phytoremediation of methylene blue from wastewater. nio -生物质微复合材料用于植物修复废水中亚甲基蓝。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-19 DOI: 10.1080/15226514.2025.2521408

Michael Tope Agbadaola, Damilola Adeola Akinyemi, Damilola Idowu Famadewa, Oluwamumiyo Dorcas Adeojo, Olaitan Michael-Agbadaola, Jonathan Oyebamiji Babalola

{"title":"NiO-biomass microcomposite for the phytoremediation of methylene blue from wastewater.","authors":"Michael Tope Agbadaola, Damilola Adeola Akinyemi, Damilola Idowu Famadewa, Oluwamumiyo Dorcas Adeojo, Olaitan Michael-Agbadaola, Jonathan Oyebamiji Babalola","doi":"10.1080/15226514.2025.2521408","DOIUrl":"https://doi.org/10.1080/15226514.2025.2521408","url":null,"abstract":"Modification of adsorbent with nanomaterials has become a widely adopted method to improve their surface morphology and adsorption capacity. In the present study, Bauhinia tomentosa seedpod (BTSP) was modified with unary NiO nanoparticle to form NiO-BTSP adsorbent for the removal of methylene blue (MB) from water. The functional, optical, and morphological properties of the synthesized adsorbent was characterized by Fourier transform infrared spectroscopy, UV-Vis Spectroscopy, Energy Dispersive X-Ray, and Scanning electron microscopy. Results showed formation of agglomerated particles with pore spaces that were loaded with dye molecules after adsorption. Adsorption studies revealed formation of multiple layers of dye molecules on the adsorbent at an optimum pH of 12 and maximum monolayer capacity of 357.14 mg/g. Kinetics modeling of the adsorption data showed that adsorption occurred through chemical interaction between the adsorbent and dye molecules to reach equilibrium in 60 min. Desorption experiments using different organic and inorganic acids and bases further revealed the reusability potential of the adsorbent with optimal regeneration obtained using as low as 0.01 M acetic acid.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-11"},"PeriodicalIF":3.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325680","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

Converting waste into opportunity: silica nanoparticles for mitigating salinity stress in wheat "Triticum turgidum". 将废物转化为机会：用于减轻小麦“Triticum turgidum”盐度胁迫的二氧化硅纳米颗粒。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-18 DOI: 10.1080/15226514.2025.2519276

Jalal Al-Tabbal, Mohammad Al-Harahsheh, Jehad Y Al-Zou'by, Khalideh Al Bkoor Alrawashdeh, Kamel K Al-Zboon

{"title":"Converting waste into opportunity: silica nanoparticles for mitigating salinity stress in wheat \"Triticum turgidum\".","authors":"Jalal Al-Tabbal, Mohammad Al-Harahsheh, Jehad Y Al-Zou'by, Khalideh Al Bkoor Alrawashdeh, Kamel K Al-Zboon","doi":"10.1080/15226514.2025.2519276","DOIUrl":"https://doi.org/10.1080/15226514.2025.2519276","url":null,"abstract":"Silica nanoparticles (SiNPs) have been promising to be a soil additive to improve plant abiotic stress tolerance, including salinity, which has been proven to strongly restrain wheat growth and yield. The present study assessed the effect of SiNPs on wheat growth and physiological performance under salt stress in a replicated pot experiment. Three concentration levels of SiNP (0%, 5%, and 10%) and three salinity levels of irrigation (0, 25, and 50 mM NaCl) were utilized. Plant and soil characteristics like chlorophyll content, nutrient uptake, relative water content, and electrolyte leakage were measured through standard procedures. Chlorophyll and relative water content were decreased by salinity stress, while electrolyte leakage, proline, and total soluble sugars increased. In contrast, SiNP application (5% and 10%) significantly improved chlorophyll content, proline accumulation, soluble sugars, nutrient content, and water retention, but reduced electrolyte leakage. Relative water content increased by approximately 5% upon SiNP treatment. Growth and yield were greatly enhanced, the greatest improvement being in the 10% SiNP treatment. The results show the possibility of SiNPs to neutralize the adverse impact of salinity. More studies may take into consideration the long-term effects, interaction with different soils, and optimum rates of application for sustainable agricultural.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-13"},"PeriodicalIF":3.4,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325677","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

Modified plant leaves/chitosan composite: adsorption modeling of crystal violet dye using Box-Behnken design. 改性植物叶片/壳聚糖复合材料：基于Box-Behnken设计的结晶紫染料吸附建模。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-18 DOI: 10.1080/15226514.2025.2516251

Ahmed Saud Abdulhameed, Rima Heider Al Omari, Samaa Abdullah, Alaa A Al-Masud, Mahmoud Abualhaija, Sameer Algburi

{"title":"Modified plant leaves/chitosan composite: adsorption modeling of crystal violet dye using Box-Behnken design.","authors":"Ahmed Saud Abdulhameed, Rima Heider Al Omari, Samaa Abdullah, Alaa A Al-Masud, Mahmoud Abualhaija, Sameer Algburi","doi":"10.1080/15226514.2025.2516251","DOIUrl":"https://doi.org/10.1080/15226514.2025.2516251","url":null,"abstract":"The utilization of sustainable materials derived from biopolymers and plant waste is a compelling approach to the removal of organic dyes from wastewater. In this study, a sustainable adsorbent (hereinafter, CHI/FL-OXA) generated from chitosan and activated Fig (Ficus carica L.) leaves using oxalic acid was created for effective organic dye (crystal violet, CV) adsorption. Box-Behnken Design (BBD) helped to accomplish the modeling and optimization of the adsorption variables comprising A: CHI/FL-OXA dose (0.02-0.08 g/L), B: pH (4-10), and C: time (10-40 min). The best variables for maximal CV uptake (93.1%) were as follows: CHI/FL-OXA dose = 0.064 g/L; pH ∼ 9.2; contact duration = 27.6 min. Agreements with pseudo-first-order and Freundlich models were shown by the experimental results of CV adsorption by CHI/FL-OXA. The intraparticle diffusion plots reveal three linear stages, indicating a multi-step adsorption process where initial dye transport is followed by intraparticle diffusion and surface adsorption, with the non-zero intercept (C ≠ 0) confirming that intraparticle diffusion is not the sole rate-controlling mechanism. The CHI/FL-OXA biomaterial, with an adsorption capacity of 375.72 mg/g, exhibited strong potential for adsorbing cationic dyes like CV dye. Adsorption of CV cationic dye on the CHI/FL-OXA enfolds numerous interactions, including electrostatic forces, Yoshida H-bonding, n-π, and H-bonding. The current work supports the Sustainable Development Goals (SDGs) like Clean Water and Sanitation (SDG 6), Responsible Consumption and Production (SDG 12), Climate Action (SDG 13), and Life Below Water (SDG 14).","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-17"},"PeriodicalIF":3.4,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325679","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

Blended lignocelluloses Hevea brasiliensis and Helianthus annuus seed pericarps as a sustainable activated carbon precursor: a thermochemical synthesis and optimization for fuchsin dye removal. 混合木质纤维素巴西橡胶树和向日葵种子果皮作为可持续的活性炭前体：热化学合成及对品红染料去除的优化。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-13 DOI: 10.1080/15226514.2025.2516252

Ali H Jawad, Mohd Amirun Aiman, R Razuan, Ruihong Wu, Zeid A ALOthman

{"title":"Blended lignocelluloses Hevea brasiliensis and Helianthus annuus seed pericarps as a sustainable activated carbon precursor: a thermochemical synthesis and optimization for fuchsin dye removal.","authors":"Ali H Jawad, Mohd Amirun Aiman, R Razuan, Ruihong Wu, Zeid A ALOthman","doi":"10.1080/15226514.2025.2516252","DOIUrl":"https://doi.org/10.1080/15226514.2025.2516252","url":null,"abstract":"Herein, blended rubber seed pericarp (RSP) and sunflower seed pericarp (SFSP) were converted into mesoporous activated carbon adsorbent (RSPSFSP-AC) to remove a toxic cationic dye namely fuchsin basic (FB) dye from aqueous environment. The thermochemical conversion process was carried out by using microwave irradiation assisted ZnCl2 activation for 15 min with 800 W. The physicochemical properties of RSPSFSP-AC were evaluated using several analytical techniques, including pHpzc, BET, FTIR, and SEM-EDX analysis. The adsorptive property of RSPSFSP-AC for FB removal was evaluated and optimized by using the Box-Behnken design (BBD) and desirability function. The desirability function optimal conditions for FB removal (92.8%) were found to be 0.09 g/100 mL of RSPSFSP-AC dosage and 9.2 solution pH. The adsorption kinetic isotherm of the FB dye was explained by the pseudo-second order (PSO) model and Langmuir isotherm model respectively. The maximum adsorption capacity (qmax) of RSPSFSP-AC for the FB dye was found to be 147.7 mg/g. The adsorption of the FB dye onto the RSPSFSP-AC surface can be explained by several possible interactions including π-π stacking, electrostatic forces, pore filling, and hydrogen bonding. Thus, the output of this research work shows the potential applicability of RSPSFSP-AC for capturing cationic dye from an aqueous environment.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-17"},"PeriodicalIF":3.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293759","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

Enhanced tolerance of salt-adapted phragmites australis to antibiotic-induced oxidative stress. 提高盐适应芦苇对抗生素诱导的氧化应激的耐受性。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-12 DOI: 10.1080/15226514.2025.2513669

Andrea Avendano Vargas, Jutta Papenbrock, Ariel E Turcios

{"title":"Enhanced tolerance of salt-adapted phragmites australis to antibiotic-induced oxidative stress.","authors":"Andrea Avendano Vargas, Jutta Papenbrock, Ariel E Turcios","doi":"10.1080/15226514.2025.2513669","DOIUrl":"https://doi.org/10.1080/15226514.2025.2513669","url":null,"abstract":"Intensive aquaculture heavily relies on antibiotics to prevent and treat fish diseases, raising concerns about antibiotic resistance, environmental contamination, and human health impacts. This study evaluated the growth, physiological responses, elemental content, oxytetracycline (OTC), and nitrogen removal performance of Common Reed (Phragmites australis) in fresh and mesohaline antibiotic-spiked solutions over 36 days. Eight treatments (0, 0.01, 0.1, 1 mg/L OTC) in freshwater and mesohaline conditions were tested, with controls included. Positive combined effects were observed in leaf temperature, photosynthetic performance, and root P content, while negative effects were found in root Fe content. OTC did not affect N content, C content, C/N ratios, plant height, or chlorophyll content. In non-saline conditions, nitrate removal reached 81-92%, regardless of OTC concentration, but was reduced by 43% due to salinity. Phytoremediation was responsible for 5-70% nitrate, 99% ammonium, and up to 14.6% OTC removal. These findings suggest P. australis is well-suited for bioremediation of nitrate and ammonium in non-saline constructed wetlands, despite OTC presence. However, its nitrate removal capacity is hindered by salinity, making it more effective in non-saline environments. These results highlight the potential of P. australis as an efficient biological method to decrease contaminants in non-saline environments.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-13"},"PeriodicalIF":3.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144274840","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

Nitric oxide mitigates copper toxicity in upland cotton via increasing antioxidant defense response and copper sequestration. 一氧化氮通过增加抗氧化防御反应和铜的固存来减轻陆地棉花的铜毒性。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2025-06-11 DOI: 10.1080/15226514.2025.2516247

Jianfei Wu, Shubin Wang, Tao Wang, Shuiping Xiao, Taili Nie, Feiyu Tang

{"title":"Nitric oxide mitigates copper toxicity in upland cotton via increasing antioxidant defense response and copper sequestration.","authors":"Jianfei Wu, Shubin Wang, Tao Wang, Shuiping Xiao, Taili Nie, Feiyu Tang","doi":"10.1080/15226514.2025.2516247","DOIUrl":"https://doi.org/10.1080/15226514.2025.2516247","url":null,"abstract":"Whether and how NO is implicated in cotton Cu detoxification remains obscure. A hydroponic experiment was conducted to assess the effects of sodium nitroprusside (SNP, NO donor) on cotton growth, antioxidative responses, Cu uptake and distribution as well as related gene expression under Cu stress. Cotton seedling's growth and photosynthetic pigment concentration were decreased by Cu excess. The inhibitory effects could be reversed by the application of SNP with 50 μM SNP performing the best. Cu stress stimulated the massive production of reactive oxygen species (ROS), while SNP application can help to abolish them. The addition of SNP promoted more Cu ions deposition into roots and binding to the cell wall, thus limiting their transportation up to shoots and distribution in the leaf cell protoplast; the proportions of the two active Cu chemical forms were decreased by 10%-30.45% in leaves, and by 49.83%-56.31% in roots, respectively. SNP-induced transcription increase in GhHIPP39 and GhMT2 decreased Cu ion bioavailability within cells. Collectively, the SNP application alleviated the Cu toxicity in cotton plants by increasing ROS scavenging ability and promoting the sequestration of Cu into the cell wall and the immobilization of Cu inside cells.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":" ","pages":"1-12"},"PeriodicalIF":3.4,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144266145","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

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