Han Ren, Yinghao Guo, Suyang Zhang, Yi Wang, Jiangmin Zhou, Hualin Chen
{"title":"Endophytic bacteria enhance cadmium remediation through siderophore production and soil microbial dynamics.","authors":"Han Ren, Yinghao Guo, Suyang Zhang, Yi Wang, Jiangmin Zhou, Hualin Chen","doi":"10.1080/09593330.2025.2550674","DOIUrl":"https://doi.org/10.1080/09593330.2025.2550674","url":null,"abstract":"<p><p>Microbial remediation of heavy metals (HMs) is an environmentally friendly and cost-effective approach to soil restoration. This study aimed to identify the endophytic bacterial strain with the highest capacity to mobilize cadmium (Cd) among four isolates from <i>Paulownia fortunei</i> root nodules. We conducted soil incubation experiments under four Cd contamination levels (10, 40, 80 and 300 mg kg<sup>-1</sup>) and three inoculation treatments, and measured soil extractable Cd, microbial community composition, and diversity. Results indicated that strain S7 exhibited the greatest Cd activation capability, attributed to its production of siderophores, organic acids and extracellular polymeric substances (EPS). Analysis of variance showed that inoculation treatment, Cd level and their interaction had significant effects on the relative abundances of the phyla Actinobacteria, Firmicutes, Gemmatimonadota and Bacteroidetes, as well as on bacterial diversity indices (Shannon, ACE, Chao). These dominant phyla were strongly correlated with soil physicochemical properties. Structural equation modelling (SEM) revealed that strain S7 directly enhanced soil Cd mobilization through siderophore production, and indirectly by altering soil pH, bacterial richness (ACE index), and the abundance of <i>Chloroflexi</i>. This study provides new insights into the mechanisms by which endophytic bacteria facilitate Cd remediation and enhances our understanding of microbe-assisted environmental restoration.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-15"},"PeriodicalIF":2.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144947711","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}
Leticia de Souza, Derce Recouvreux, Leonardo Paludetto Lopes, Claudimir Carminatti, Regina Antônio, Dachamir Hotza
{"title":"Bacterial nanocellulose proton exchange membranes functionalized with Reactive Black 5 for microbial fuel cells.","authors":"Leticia de Souza, Derce Recouvreux, Leonardo Paludetto Lopes, Claudimir Carminatti, Regina Antônio, Dachamir Hotza","doi":"10.1080/09593330.2025.2526183","DOIUrl":"https://doi.org/10.1080/09593330.2025.2526183","url":null,"abstract":"<p><p>Microbial Fuel Cells (MFCs) represent a promising technology for renewable energy generation, effectively converting chemical energy into electricity. A critical parameter influencing MFC performance is the quality of Proton Exchange Membranes (PEMs). In this study, we aimed to assess energy generation in MFCs using bacterial nanocellulose (BNC) membranes functionalized with Remazol Black 5 (RB5) as PEMs. The most favourable outcome was achieved with the BNC membrane produced with 150 mg L<sup>-1</sup> of RB5.To characterize these membranes, we conducted ion exchange capacity (IEC) and liquid water uptake capacity (WUC) measurements, as well as analyzed their physicochemical properties using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Subsequently, we employed MFCs to evaluate the RB5-functionalized BNC membranes as PEMs. The results demonstrated that the IEC of the BNC/RB5 membranes was comparable to that of the conventional Nafion® membrane, emphasizing their potential suitability in MFC applications. The maximum power density of BNC-RB5 150 was 28.05 mW m<sup>-2</sup>, with an internal resistance of 0.18 mΩ m<sup>-2</sup>. This research shows that the functionalization of BNC can improve high-performance in PEMs for MFCs based in BNC, contributing to the advancement of renewable energy technologies and fostering more sustainable energy solutions.HighlightsBNC membranes with 150 mg L<sup>-1</sup> of RB5 demonstrated the most favourable energy generation.IEC of BNC/RB5 membranes is comparable to the conventional Nafion membrane, highlighting their suitability for MFC applications.BNC's unique properties can advance the development of efficient PEMs for MFCs.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-11"},"PeriodicalIF":2.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144947749","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}
Esin Balci, Emilio Rosales, Marta Pazos Curras, Aysun Sofuoglu, M A Sanromán
{"title":"Enhanced catalytic performance of <i>Rhizomucor miehei</i> lipase on di-n-butyl and diethylhexyl phthalates: insights into substrate specificity and immobilization strategy.","authors":"Esin Balci, Emilio Rosales, Marta Pazos Curras, Aysun Sofuoglu, M A Sanromán","doi":"10.1080/09593330.2025.2548636","DOIUrl":"https://doi.org/10.1080/09593330.2025.2548636","url":null,"abstract":"<p><p>Di-n-butyl (DnBP) and Diethylhexyl Phthalates (DEHP), known as potential endocrine disruptors, are priority pollutants categorized by many regulatory agencies. Enzymatic degradation is a green and efficient approach to remove PEs in the environment. In this study, the DnBP and DEHP degradation performance of <i>Rhizomucor miehei</i> lipase (palatase) in free and immobilized forms on Halloysite nanoclays (HNCs) in an aqueous system was investigated. Upon enzyme immobilization, the alterations in the palatase's secondary structure were examined using the circular dichroism (CD) analysis. The binding affinity of DnBP and DEHP to palatase was evaluated with molecular docking approaches. The enzyme's immobilization efficiency and relative activity were found to be 80.3% and 87.8%, respectively. CD results revealed that palatase retained its secondary structure to a significant extent. HNCs-palatase (HNCs-P) exhibited a high stability, as the structural integrity of palatase was mostly preserved. Both free palatase (FP) and HNCs-P fully degraded DnBP and DEHP (100 mg/L) to phthalic acid and a degradation pathway of DnBP and DEHP was suggested. Immobilization prevented the enzyme inhibition caused by the accumulation of metabolites. After seven consecutive uses, HNCs-P was still able to degrade DnBP (63.3%) and DEHP (72.8%). Molecular docking results showed that DEHP had a higher affinity for palatase than DnBP. This study suggests that enzyme immobilization onto HNCs can increase their stability and catalytic performance. FP and HNCs-P effectively hydrolyse ester bonds responsible for phthalate toxicity. Considering their high efficiency, FP and HNCs-P can be used as potential phthalate degraders in various environmental remediation processes.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-17"},"PeriodicalIF":2.0,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144947778","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}
Sumona Koley, Gagan Deep Singh, Meena Khwairakpam, Ajay S Kalamdhad
{"title":"Sustainable water treatment: leveraging drinking water treatment sludge for enhanced water quality.","authors":"Sumona Koley, Gagan Deep Singh, Meena Khwairakpam, Ajay S Kalamdhad","doi":"10.1080/09593330.2025.2547045","DOIUrl":"https://doi.org/10.1080/09593330.2025.2547045","url":null,"abstract":"<p><p>This study presents a novel and sustainable approach to enhance drinking water treatment by transforming Drinking Water Treatment Sludge (DWTS), a challenging waste byproduct, into a valuable resource. We investigated the combined coagulation-adsorption process, utilising DWTS as an adsorbent alongside alum coagulant, to address the persistent issue of dissolved natural organic matter (NOM) and turbidity removal. Our findings demonstrate that adding DWTS at a dose of 1.5 g/L effectively achieved simultaneous and significant removal of both NOM and turbidity. This integration remarkably reduced alum consumption by 46.15%, leading to more sustainable chemical usage. Furthermore, the presence of DWTS improved floc properties, evidenced by a substantial decrease in the sludge volume index (SVI) from 166.60 mL/mg to 70.40 mL/mg, and an 8.33% increase in the interface velocity of the formed flocs. This study uniquely highlights the dual benefit of DWTS in both enhancing coagulation efficiency and acting as an effective adsorbent. The combined process also significantly reduced the potential for trihalomethane formation (THMFP) by approximately 77.71%, directly addressing a critical public health concern related to disinfection by-products. This work establishes a robust framework for a circular economy in water treatment, offering a highly efficient and environmentally sound method for mitigating NOM and turbidity while valorising a waste stream.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-18"},"PeriodicalIF":2.0,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144947752","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}
{"title":"Characterisation of iron, nickel, and vanadium porphyrins in HTL bio-crude of <i>Chlorella minutissima</i>: insights into metal speciation and refining challenges.","authors":"Monika Saini, Rachana Swami, Nadeem Nazurally","doi":"10.1080/09593330.2025.2548635","DOIUrl":"https://doi.org/10.1080/09593330.2025.2548635","url":null,"abstract":"<p><p>This research is the first to characterise iron (Fe), nickel (Ni), and vanadium (V) porphyrins in <i>Chlorella minutissima</i> hydrothermal liquefaction (HTL) bio-crude, revealing species-specific metal retention critical for refining. Using ICP-MS, EPR, and FTICR-MS, bio-crude yields of 35.0-42.0% (w/w, dry basis) were achieved, alongside aqueous phase yields of 40.0-45.0%, gaseous products of 12.0-15.0%, and solid residues of 6.0-8.0% (300-350°C, 15 MPa, 45 min, no catalyst). Relative to raw biomass (Fe: 75 ± 5 ppm, Ni: 50 ± 5 ppm, V: 45 ± 4 ppm), Fe accumulated in bio-crude (56.7-90%, 42.5-60.4 ppm at 300-350°C, 80.5 ± 4.0% at 350°C), while Ni (81.6 ± 5.4%, 40.8 ± 2.7 ppm) and V (74.9 ± 5.1%, 33.7 ± 2.3 ppm) concentrated in solid residues. FTICR-MS identified Fe(III), Ni(II), and V(IV) porphyrins at m/z 537.207, 543.191, and 521.183, with trace Cu and Zn porphyrins at m/z 541.198 and 542.201, and EPR confirmed oxidation states. Compared to <i>C. vulgaris</i> (Fe: ∼35 ppm), <i>C. minutissima</i> showed higher Fe retention (60.4 ± 3.0 ppm, 80.5 ± 4.0% at 350°C), increasing catalyst deactivation risks. Adsorption reduced metals by 74-75% (Fe: 60.4 ± 3.0 ppm to 15.2 ± 1.8 ppm; Ni: 11.5 ± 0.9 ppm to 3.0 ± 0.4 ppm; V: 7.6 ± 0.5 ppm to 2.0 ± 0.3 ppm), offering a viable refining strategy. Statistical analysis (ANOVA, <i>p</i> < 0.05) confirmed temperature's role in Fe partitioning. These findings underscore the need for tailored refining processes, combining adsorption and hydroprocessing, to enhance <i>C. minutissima</i> bio-crude quality for sustainable biofuels.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-13"},"PeriodicalIF":2.0,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144947732","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}
{"title":"Active transplantation study of nickel uptake by <i>Pyxine cocoes</i> (Sw.) Nyl.: prospection for atmospheric nickel biomonitoring.","authors":"Bushra Khatoon Ansari, Arvind Kumar Shukla, Geetgovind Sinam, Dalip Kumar Upreti","doi":"10.1080/09593330.2025.2545633","DOIUrl":"https://doi.org/10.1080/09593330.2025.2545633","url":null,"abstract":"<p><p>The prevalence of nickel pollution is anticipated to rise due to the advent of novel low-carbon technologies and electric vehicles. Biomonitoring, which is increasingly overlooked in favour of technology-driven methods, remains a cost-effective approach and enables the monitoring of extensive spatial areas. In the present study, <i>Pyxine cocoes</i> (<i>P. cocoes</i>), a symbiotic lichen, was examined for the first time for its capacity to uptake sprayed nickel (Ni) <i>in vivo</i> and the subsequent effects on its physicochemical parameters. Transplanted <i>P. cocoes</i> was treated with different concentrations of Ni solutions (5 µM, 50 µM, 100 µM, 150 µM, 200 µM). The lichen, <i>P. cocoes,</i> had the capacity to accumulate Ni linearly in a dose- and time-dependent manner. The effect of Ni on photosynthetic parameters, cell membrane integrity, antioxidants and protein content was quantified corresponding to concentrations and durations of treatment. At a low dose (5 µM), a beneficial effect was observed on chlorophyll-a, chlorophyll-b, total chlorophyll and protein content in <i>P. cocoes</i>. At higher doses of Ni (150 µM, 200 µM), it exhibited an inhibitory effect as observed by reduced photosynthetic parameters and antioxidant activity. Cell membrane integrity (CMI) deteriorated in response to increasing Ni exposure, as indicated by increased electrolyte conductivity. Using the linear regression coefficient, it was determined that at lower Ni concentrations, the adsorption kinetics followed pseudo-second-order (chemisorption) and, at higher concentrations, it followed pseudo-first-order kinetics (physisorption). This active (transplant) monitoring method is a novel endeavour in monitoring Ni stress and utilising the physicochemical parameters as a bioindicator for Ni pollution.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862225","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}
Chahinez Ait Si Said, Nacera Riad, Mohamed Reda Zahi, Smain Sabour, Naima Bouzidi, Salah Akkal, Stéphane Mounier, Ouassila Touafek, Mohamed El Hattab
{"title":"Photoprotective bioactives from Olive mill wastewater: a sustainable approach.","authors":"Chahinez Ait Si Said, Nacera Riad, Mohamed Reda Zahi, Smain Sabour, Naima Bouzidi, Salah Akkal, Stéphane Mounier, Ouassila Touafek, Mohamed El Hattab","doi":"10.1080/09593330.2025.2544950","DOIUrl":"https://doi.org/10.1080/09593330.2025.2544950","url":null,"abstract":"<p><p><b>ABSTRACT</b>Olive mill wastewater (OMW), a liquid byproduct of olive oil extraction, poses significant environmental challenges as an agricultural waste due to its high pollutant load. This study explores the bioactive potential of an ethyl acetate extract of OMW (EAE-OMW) and its silica gel chromatography-derived column fractions (CF<sub>S</sub>). Total phenolic and flavonoid contents were quantified, revealing high values of 291.25 µg GAE/mg extract and 91.4 µg QE/mg extract, respectively. Antimicrobial activity was assessed against 12 pathogens, with minimum inhibitory concentrations (MIC) ranging from 1.56 to 6.25 mg/mL for the EAE and 3.13 to 25 mg/mL for the fractions. Antioxidant capacity, measured via DPPH radical scavenging, demonstrated significant activity for the EAE (IC<sub>50</sub> = 34.69 µg/mL) and prominent fractions Fr<sub>5</sub> (72.42 µg/mL) and Fr<sub>4</sub> (81.41 µg/mL). Photoprotective evaluation revealed effective sun protection factor (SPF) values for the EAE and fractions, with enhanced activity in binary and ternary combinations, suggesting synergistic effects. These findings highlight the potential of OMW-derived extracts and fractions as natural bioactive agents for antimicrobial interventions, antioxidant applications, and photoprotective solutions, offering a pathway for integrating waste valorization with biotechnological innovation.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-16"},"PeriodicalIF":2.0,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862226","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}
{"title":"Adsorption and reduction of Cr(VI): mechanistic investigations of magnetite-fulvic acid complexes.","authors":"Yangyang Zhang, Xi Qin, Junwen An, Bo Zu","doi":"10.1080/09593330.2025.2546122","DOIUrl":"https://doi.org/10.1080/09593330.2025.2546122","url":null,"abstract":"<p><p>Iron oxides and natural organic matter are widely recognised for their roles in mitigating heavy metal contamination due to their surface reactivity. Magnetite, featuring Fe(II), is of particular interest for its reductive properties. However, limited studies have explored its synergistic interaction with organic matter in removing anionic contaminants like Cr(VI). In this study, magnetite-fulvic acid (Mt-FA) complexes with varying C/Fe molar ratios were synthesised and tested for Cr(VI) removal through batch experiments and spectroscopic analyses. Fulvic acid decreased the specific surface area of magnetite and partially blocked adsorption sites, leading to reduced adsorption capacity with increasing FA content. Under acidic conditions (pH 3), Mt-FA with a C/Fe ratio of 0.5 exhibited the highest Cr(VI) adsorption capacity (6.38 mg/g). FT-IR and XPS analyses confirmed that both FA and magnetite were involved in Cr(VI) adsorption and reduction, with Fe(II) contributing to redox reactions. Additional tests with FA alone revealed its inherent reductive capacity (1.12-1.59 mg/g), while magnetite alone contributed ∼1.34 mg/g. The combined Mt-FA complexes exhibited higher reduction capacity (1.57-2.11 mg/g), indicating a synergistic effect. FA not only provides redox-active groups but also facilitates electron transfer from magnetite to Cr(VI), enhancing Cr(VI) reduction. This dual-function material offers a promising approach for remediation of Cr(VI)-contaminated environments and highlights the importance of interfacial interactions between iron oxides and natural organic matter.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-13"},"PeriodicalIF":2.0,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144845022","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}
{"title":"Greenhouse temperature prediction model based on ISGA-AMSCNN-DD.","authors":"Yuqiang Yang, Kun Song, Huanzhi Luo","doi":"10.1080/09593330.2025.2542575","DOIUrl":"https://doi.org/10.1080/09593330.2025.2542575","url":null,"abstract":"<p><p>Accurate short-term temperature prediction in greenhouses is crucial for enabling advanced control strategies, such as model predictive control. However, the nonlinear and time-varying interactions between external weather conditions, crop transpiration, and environmental regulation devices pose significant challenges to forecasting accuracy. To address these challenges, we propose a novel hybrid prediction model, ISGA-AMSCNN-DD, which integrates the Improved Snow Goose Algorithm (ISGA), an attention-enhanced Multi-Scale Convolutional Neural Network (AMSCNN), and a dendritic network architecture (DD). Specifically, ISGA uses a classification-guided optimization strategy to improve global search capability and effectively fine-tune model parameters. The AMSCNN module enhances feature extraction by combining multi-scale convolution structures embedded with attention mechanisms to capture complex temporal and spatial dependencies. The DD architecture, in contrast, focuses on enhancing the model's generalization ability by analysing key relationships within the data. We validate the proposed model using real-world greenhouse temperature data collected from vegetable greenhouses in Fengyun Village, Nanchuan District, Chongqing, China. Experimental results demonstrate that ISGA-AMSCNN-DD achieves superior performance, with an R² of 0.9796, PBIAS of 0.1218%, NSE of 0.9849, RMSE of 0.6232°C, and MAPE of 2.8623%, confirming its accuracy and reliability. These findings validate the effectiveness and robustness of our approach, providing a strong foundation for intelligent greenhouse management and temperature control.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144820969","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}
Vikas Rathore, Mudtorlep Nisoa, Tanachat Eknapakul, Subash C B Gopinath, Arunsinh B Zala, Vivek Pachchigar, Sabina Yasmin, Worawan Panpipat, Sureeporn Sarapirom, Boonyawan Dheerawan, Sudhir Kumar Nema
{"title":"Green synthesis of high throughput hydrogen peroxide via sub-atmospheric plasma-water interaction.","authors":"Vikas Rathore, Mudtorlep Nisoa, Tanachat Eknapakul, Subash C B Gopinath, Arunsinh B Zala, Vivek Pachchigar, Sabina Yasmin, Worawan Panpipat, Sureeporn Sarapirom, Boonyawan Dheerawan, Sudhir Kumar Nema","doi":"10.1080/09593330.2025.2541772","DOIUrl":"https://doi.org/10.1080/09593330.2025.2541772","url":null,"abstract":"<p><p>Plasma-activated water (PAW), enriched with reactive species such as hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), presents a sustainable and versatile solution for wastewater treatment, disinfection, agriculture, and biomedical applications. This study investigates the effects of key plasma parameters - treatment time, input power, water purity, and chamber pressure - on H<sub>2</sub>O<sub>2</sub> production. A statistical framework combining response surface methodology (RSM), regression analysis, ANOVA, effect estimation, and marginal means was employed to model and analyze these influences. Among the variables, treatment time had the most significant impact, followed by water purity and input power. Deionised water produced higher H<sub>2</sub>O<sub>2</sub> concentrations due to reduced ion buffering capacity. Under optimised conditions (3 min, 300 W, 100 mmHg), a maximum H<sub>2</sub>O<sub>2</sub> concentration of 35 mg·L⁻¹ was achieved, with an energy efficiency of 42.9 g kWh<sup>-1</sup>. Additionally, the energy efficiencies for NO<sub>3</sub>-, NO<sub>2</sub>-, and dissolved O<sub>3</sub> were 73.5, 14.7, and 6 g kWh<sup>-1</sup>, respectively. These findings provide valuable insights for tailoring PAW production toward specific oxidative applications.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144820968","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}