K. Benazir , R. Siranjeevi , R. Susmitha , S.Sameera Shabnum , C.Krishna Raj , P. Nivetha , A. Saravanan , A.S. Vickram
{"title":"Designing a novel valuable photocatalyst Bi₂MoO₆ infused MoS₂ nanocomposites for removal of organic dyes under UV light","authors":"K. Benazir , R. Siranjeevi , R. Susmitha , S.Sameera Shabnum , C.Krishna Raj , P. Nivetha , A. Saravanan , A.S. Vickram","doi":"10.1016/j.hazadv.2025.100713","DOIUrl":"10.1016/j.hazadv.2025.100713","url":null,"abstract":"<div><div>The significant environmental problem of dye pollution caused by industrial wastewater is often not adequately addressed by conventional effluent treatment methods. The present study has explored the possibility of using nanotechnology to address this issue through the development of a Bi₂MoO₆/MoS₂ nanocomposite for the photocatalytic breakdown of organic dyes using the co-precipitation technique. The prepared nanocomposite was well characterized by X-ray diffraction, field emission scanning electron microscopy, UV–visible spectroscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy to confirm the structural, morphological, and chemical properties. The photocatalytic activity tests, performed under UV light, revealed that the nanocomposite Bi₂MoO₆/MoS₂ degraded Rose Bengal and Acid Blue dyes to an efficiency of about 83 % and 82 %, respectively. The stability of the photocatalyst was also checked for five runs in a row, so that its performance remained the same with minimal loss in activity. These results show the great potential of Bi₂MoO₆/MoS₂ nanocomposite to be a highly efficient and stable photocatalyst for dye degradation, hence providing a promising solution for mitigating dye pollution in industrial wastewater.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100713"},"PeriodicalIF":5.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Carbon sequestration and soil responses to soil amendments – A review","authors":"Matthew C. Enebe, Ram L. Ray, Richard W. Griffin","doi":"10.1016/j.hazadv.2025.100714","DOIUrl":"10.1016/j.hazadv.2025.100714","url":null,"abstract":"<div><div>The recent increase in climate change that results in varying weather conditions and climate change scenarios has necessitated an urgent need to address the situation using a nature-based solution approach. Soil is a major source and sink of carbon, and any approach that could enhance its carbon sequestration potential could aid in climate change control through reducing carbon emissions. One of these nature-based solutions is the use of organic amendments. Most organic amendments serve as a source of beneficial microbes, nutrients, and carbon for replenishing soil carbon stock and enhancing soil biological and biochemical processes. Thus, they are essential in maintaining soil biodiversity, promoting crop yield, and contributing to soil carbon sequestration. Harnessing organic amendments in soil carbon sequestration has led to using various organic materials such as biochar, animal manure, plant litter, coal gangue, and straw to enrich soil carbon stock. However, there are limitations regarding their consistency and efficacy under field and laboratory conditions. In this review, we explore soil organic carbon sources and compositions, soil amendments, priming and carbon sequestration, soil amendments in microbial selection and carbon sequestration, soil amendments in driving below-and-aboveground soil carbon sequestration processes, and the limitations of soil amendments to carbon sequestration. We further discuss the research gaps that will enhance our understanding of carbon sequestration and soil responses by leveraging a nature-based approach for controlling soil carbon emissions and improving soil carbon sinks.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100714"},"PeriodicalIF":5.4,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haitao Yu , Guoxin Li , Heng Zhang , Qingsong Li , Lei Wang , Dandan Zhang
{"title":"Adsorption mechanism of arsenic(V) on aged polyethylene microplastics: Isotherms, kinetics and effect of environmental factors","authors":"Haitao Yu , Guoxin Li , Heng Zhang , Qingsong Li , Lei Wang , Dandan Zhang","doi":"10.1016/j.hazadv.2025.100711","DOIUrl":"10.1016/j.hazadv.2025.100711","url":null,"abstract":"<div><div>Microplastics gradually age when they enter the environment, and the adsorption mechanism and factors affecting the adsorption of arsenic (As), which is widely present in water, by aged microplastics remain unclear. This study is concerned with the kinetics and thermodynamics of As(V) adsorption by unaged, acid-aged, alka-aged and UV-aged polyethylene (PE) microplastics. In addition, it seeks to ascertain the influence of environmental factors (pH, dissolved organic matter, and NO<sub>3</sub><sup>-</sup>) on As(V) adsorption by the aforementioned microplastics. The results showed that all three aging methods caused the surface of PE microplastics to become roughened and wrinkled, more oxygen-containing functional groups appeared, and the crystallinity increased. The adsorption process of As(V) on aged-PE microplastics can be better fitted with the pseudo-second-order kinetic model than the pseudo-first-order and Elovich models, suggesting that the adsorption of As(V) on aged-PE microplastics is dominated by chemisorption. Compared with unaged microplastics, the adsorption of As(V) by aged-PE microplastics increased significantly in the following order: alka-PE > acid-PE > UV-PE. The Freundlich model is more suitable for describing the isothermal adsorption of As(V) on aged PE microplastics than the Temkin model. In addition, the Langmuir model is also suitable for describing the isothermal adsorption of As(V) on unaged-PE, UV-PE and acid-PE microplastics. This finding suggests that the adsorption of As(V) by aged PE microplastics is predominantly facilitated via surface complexation and van der Waals forces. Furthermore, the adsorption of As(V) on aged-PE microplastics exhibited a tendency to be promoted and then inhibited with increasing pH, NO<sub>3</sub><sup>-</sup> and dissolved organic matter concentrations. The findings of this study could offer significant theoretical insights into the biogeochemical cycling of As in the presence of aged microplastics.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100711"},"PeriodicalIF":5.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Saerom Park , Sang-Gyu Yoon , Jin-Yong Lee , Jinsung An
{"title":"Synergistic interplay of weathered microplastics: Coupling sorption-leaching behavior and environmental risk implications","authors":"Saerom Park , Sang-Gyu Yoon , Jin-Yong Lee , Jinsung An","doi":"10.1016/j.hazadv.2025.100712","DOIUrl":"10.1016/j.hazadv.2025.100712","url":null,"abstract":"<div><div>Weathered microplastics (MPs) are a growing environmental concern due to their altered physicochemical properties affecting pollutant interactions. While previous studies examined isolated aspects of weathered MPs, this study provides an integrated investigation of photo-weathering effects on MPs’ properties and associated human health risks. Polystyrene (PS) and polyvinyl chloride (PVC) MPs were exposed to UVC and Xenon light to simulate photo-weathering. Surface analyses revealed that UVC irradiation caused more distinct changes in surface oxidation and hydrophilicity compared to Xenon exposure, with carbonyl index (CI) increasing at rates of 0.002/h and 0.001/h for PS and PVC, respectively, with UVC irradiation. The O/C ratio reached 0.0978 for PS and plateaued at higher values for PVC under UVC exposure, while contact angles decreased for both MPs. Weathering did not impact heavy metal (As, Cu, Pb, Zn) adsorption onto MPs; instead, adsorption capacity varied primarily based on metal species and MP type. Photo-weathering severely accelerated the leaching of di(2-ethylhexyl) phthalate (DEHP) from PVC, with the leaching rate constant being approximately 5 times faster for weathered MPs exposed for 600 h compared to virgin. Probabilistic human health risk assessment using Monte Carlo simulation showed while both hazard quotient (HQ) and excess cancer risk (ECR) remained below regulatory thresholds, weathered MPs exhibited twice the risk values compared to virgin MPs. Thus, the role of weathered MPs as carriers of heavy metals and increased risks due to leaching of hazardous materials highlights the need for more in-depth and systematic investigation of various weathered MPs.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100712"},"PeriodicalIF":5.4,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application of ball milling technology in removal of PFAS and ball milling modified materials: A review","authors":"Xue Yu , Sai Wu , Zhiyuan Zhang , Cuiping Wang","doi":"10.1016/j.hazadv.2025.100709","DOIUrl":"10.1016/j.hazadv.2025.100709","url":null,"abstract":"<div><div>Perfluoroalkyl or polyfluoroalkyl substances (PFAS), as an emerging pollutant, are highly stable compounds due to the strong and highly polar carbon-fluorine bonds (C-F), which makes PFAS highly resistant to degradation, and further cause adverse effects on human and environmental health. It is imperative to develop a technology to efficiently remove PFAS from the environment media. The ball milling technology can produce high mechanochemical force, which had been developed to efficiently degrade or destruct PFAS. Adding the composite materials as a kind of supporter during the ball milling can improve the degradation percentage of PFAS. The significant destruction of PFOA and PFOS were observed during ball milling and the removal efficiency obtained >90 %. Additionally, the co-ball milling with some reagents like CaO, KOH and SiO<sub>2</sub> can effectively break the strong bond of C-F of PFAS in the soil, for example, removal efficiency of 6:2 fluorotelomer sulfonate (6:2FTS) reached 100 % when KOH co-milled with PFOA, PFOS and 6:2FTS in a planetary ball mill (PBM). Especially, the composited material of biochar doped with nitrogen, phosphorus, iron or other elements using ball milling enhanced adsorption capacity for dyes, heavy mental and antibiotics. N-rich biochar (BC) had the best adsorption capacity of 575.0 mg g<sup>-1</sup> methylene blue (MB) than that of ZnO or alkaline modified materials. In this paper, ball milling modified biochar materials and ball mill technology for remediation of soil and sediment contaminated with PFAS, comparisons of removal efficiency and ecological risks of materials were summarized. Till now, the destruction of PFAS in a variety of soils by ball milling has not been fully studied yet. In the future, some more efficient remediation technology of ball milling and sustainable materials need be further developed to treat the soil polluted with PFAS and ether substitutes for PFASs.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100709"},"PeriodicalIF":5.4,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dong Hoon Lee , Ryeo-Ok Kim , Jin-Hwi Kim , Sang-Il Lee , Min-Kyu Park , Kyunghwa Park , Min-Yong Lee
{"title":"Machine learning approaches for identifying the influencing factors of input materials in cement and predicting heavy metal concentrations","authors":"Dong Hoon Lee , Ryeo-Ok Kim , Jin-Hwi Kim , Sang-Il Lee , Min-Kyu Park , Kyunghwa Park , Min-Yong Lee","doi":"10.1016/j.hazadv.2025.100699","DOIUrl":"10.1016/j.hazadv.2025.100699","url":null,"abstract":"<div><div>Waste co-processing technologies for producing cement can lead to elevated levels of heavy metals (HMs) and other harmful pollutants, which can negatively impact humans and the environment. We evaluated three pollution indices of HM concentrations in cement, namely pollution load index (PLI), potential ecological risk index (PERI), mean probable effect concentration (m-PEC). According to results, 39–74 % of cements exhibited PLI > 1. According to the m-PEC index, the ecological risk level was in all cases in the range of 52–100 %, i.e., considerable risk. All cements exhibited low PERI values of <150, indicating low ecological risk. A machine learning approach was adopted to identify the influencing factors and predict the heavy metal concentrations in cement, with the Adaptive Synthetic Sampling oversampling technique enhancing the predictive accuracy. Classification models using the artificial neural network (ANN) and random forest (RF) techniques for six heavy metals showed that RF exhibited higher predictive accuracy than that of ANN for all HMs except As. In both the ANN and RF models, the highest predictive accuracy was achieved for Pb, i.e., 0.785 and 0.840, respectively. Excluding Pb, the range of predictive accuracies for heavy metals of the ANN model was 0.583–0.683, whereas that of the RF model was 0.635–0.771. Feature importance calculations showed that As and Cd concentration in cement was mainly influenced by sludge input as a replacement raw material, whereas clay played a significant role in determining the Hg and Pb concentrations in cement. The other heavy metals were influenced by a variety of sources with similar contributions.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100699"},"PeriodicalIF":5.4,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sanjeeb Mohapatra , Xuneng Tong , Santanu Mukherjee , Monika Dubey , Sachin Subhash , You Luhua , Jan Peter van der Hoek , Karina Yew-Hoong Gin
{"title":"Comprehensive insights on the detection, occurrence and modelling of pharmaceuticals in surface water, groundwater, and drinking water treatment plants","authors":"Sanjeeb Mohapatra , Xuneng Tong , Santanu Mukherjee , Monika Dubey , Sachin Subhash , You Luhua , Jan Peter van der Hoek , Karina Yew-Hoong Gin","doi":"10.1016/j.hazadv.2025.100707","DOIUrl":"10.1016/j.hazadv.2025.100707","url":null,"abstract":"<div><div>Pharmaceuticals have received extensive scientific and socio-economic attention worldwide due to their acute and chronic toxic effects on plants, animals, and human health. However, the geographical distribution and seasonal variability of pharmaceutical mixtures in aquatic environments remain underexplored, especially in resource-deficient countries. The present review provides an in-depth analysis of the seasonal occurrence of pharmaceuticals, particularly antibiotics detected over the last five years in surface water, groundwater, and drinking water. The effectiveness of the conventional and advanced drinking water treatment processes is discussed with a focus on the adsorption and ozonation processes, commonly employed at drinking water treatment plants (DWTPs). Findings reveal median concentrations of antibiotics and other pharmaceuticals in drinking water worldwide, often exceeding their levels in groundwater. This underscores the urgent need for global-scale, long-term monitoring of antibiotics in aquatic systems, especially in DWTPs. Beyond targeted analysis, non-targeted analysis (NTA) should be integrated into routine water quality monitoring at DWTPs to identify novel contaminants, including fluorinated pharmaceuticals. Finally, this review provides an overview concerning the process-based and data-driven modelling of pharmaceutical occurrence, fate, and transport as a complementary approach to sampling and lab-scaled experiments, especially in resource-limited settings. Strengthening long-term monitoring, expanding treatment solutions, integrating modelling tools, and promoting green chemistry innovations are crucial to mitigating risks and safeguarding water quality.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100707"},"PeriodicalIF":5.4,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elvira De Rosa , Pellegrino Cerino , Maria Triassi , Fabiana Di Duca , Annamaria Porreca , Immacolata Russo , Stefano Scippa , Alessandro Venuta , Annachiara Coppola , Antonio Pizzolante , Federico Nicodemo , Ugo Trama , Fabio Policino , Paolo Montuori
{"title":"Contamination assessment and risk evaluation of organophosphorus pesticides in groundwater: A study on contamination patterns and implications","authors":"Elvira De Rosa , Pellegrino Cerino , Maria Triassi , Fabiana Di Duca , Annamaria Porreca , Immacolata Russo , Stefano Scippa , Alessandro Venuta , Annachiara Coppola , Antonio Pizzolante , Federico Nicodemo , Ugo Trama , Fabio Policino , Paolo Montuori","doi":"10.1016/j.hazadv.2025.100701","DOIUrl":"10.1016/j.hazadv.2025.100701","url":null,"abstract":"<div><div>Groundwater contamination by organophosphorus pesticides (OPPs) poses a serious environmental and public health threat, particularly in regions with intensive agricultural activity. While previous studies have focused on pesticide contamination in surface water, there is a lack of comprehensive data on OPP concentrations in groundwater and their associated health risks. This study addresses this gap by analyzing the occurrence, spatial distribution, and health risks of ten OPPs in 1168 groundwater samples from the Campania Plain, Southern Italy. The results revealed contamination hotspots in Caserta, Naples, and Salerno, with mean total OPP concentrations of 26.4, 26.0, and 24.9 ng/L, respectively. Dimethoate (13.5 %), chlorpyrifos (17.8 %), and parathion (13.0 %) were the most frequently detected pesticides, with chlorpyrifos persisting despite its EU ban in 2020. A human health risk assessment indicated that while non-carcinogenic risks (Hazard Index = 0.634) were below safety thresholds, carcinogenic risks exceeded acceptable limits for children, particularly for dichlorvos (4.26 × 10⁻³) and dimethoate (5.89 × 10⁻³). Statistical analysis, including Principal Component Analysis (PCA), revealed significant correlations between pesticide distribution and land use, emphasizing the role of intensive agriculture in groundwater contamination. This study highlights the urgent need for stricter regulations, improved groundwater monitoring, and sustainable pesticide management practices to mitigate health risks and protect water resources.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100701"},"PeriodicalIF":5.4,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Getachew A. Kefelegn , Niguss S. Hailegnaw , Ashley R. Smyth , Yuncong C. Li , Bin Gao , Haimanote K. Bayabil
{"title":"Mitigating seawater flooding induced greenhouse gas emissions and nutrient leaching using soil amendments","authors":"Getachew A. Kefelegn , Niguss S. Hailegnaw , Ashley R. Smyth , Yuncong C. Li , Bin Gao , Haimanote K. Bayabil","doi":"10.1016/j.hazadv.2025.100702","DOIUrl":"10.1016/j.hazadv.2025.100702","url":null,"abstract":"<div><div>Saltwater intrusion and flooding into coastal agricultural lands are growing concerns due to their detrimental impact on surface and groundwater, soil health, agricultural productivity, and ecosystem services. This study aimed to evaluate the efficacy of soil amendments (biochar, compost, gypsum, and hydrogel) in mitigating the impacts of seawater flooding on nutrient release and greenhouse gas emissions. Column experiments were conducted on two soil types: Biscayne soil, high in Ca and total Kjeldahl nitrogen (TKN) content, and Krome soil, low in Ca and TKN. Soil amendments were applied at two different rates (1.5 % and 3 % w/w), with a control for comparison. Porewater samples were collected from three depths after one and seven days of flooding to measure concentrations of nutrients (Ca²⁺, Mg²⁺, K⁺, NH₄⁺‒N, NO₃⁻‒N, ortho-phosphorus (P), total phosphorus (TP), Na⁺, and electrical conductivity). Greenhouse gas samples were collected using PVC chambers and analyzed for carbon dioxide (CO<sub>2</sub>), nitrous oxide (N<sub>2</sub>O), and methane (CH<sub>4</sub>). One day after flooding, all amendments (except hydrogel) at both rates effectively decreased CO₂ flux in Biscayne soil. Similarly, most amendments, except 1.5 % hydrogel in Biscayne and 1.5 % biochar and 3 % compost in Krome soil, decreased N₂O flux. The application of 3 % compost induced a 100 % decline in N₂O flux in both soils, while the highest CO₂ flux reduction (78.1 %) was observed from a 3 % biochar application rate in Biscayne soil. Biochar decreased NH₄⁺‒N, P, and TP concentrations in Krome soil, while 3 % compost decreased NO₃⁻‒N and P concentrations in Biscayne soil. The highest reductions in Na⁺ and Mg²⁺ concentrations were observed in Biscayne soil with 3 % hydrogel, while Ca²⁺ and K⁺ reductions were greatest in Krome soil with 1.5 % biochar and 3 % compost. These findings highlight the potential of soil amendments to mitigate greenhouse gas emissions and nutrient release from flooded soils, emphasizing the importance of soil characteristics and element-specific selection of amendments.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100702"},"PeriodicalIF":5.4,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fungal consortium mediated efficient biodegradation of hazardous reactive dyes from textile effluent: An environmentally acceptable strategy","authors":"Ashish Modi, Payal Baranda, Rashmi Thakor, Dimple Thacker, Jigneshkumar Trivedi, Himanshu Bariya","doi":"10.1016/j.hazadv.2025.100705","DOIUrl":"10.1016/j.hazadv.2025.100705","url":null,"abstract":"<div><div>The high concentration of reactive dyes in untreated textile effluent poses a significant challenge for efficient bioremediation. This study focuses on isolating and screening fungal strains from textile effluent collected from various locations to evaluate their decolorization potential against reactive dyes. Physicochemical parameters, including total dissolved solids (TDS), total suspended solids (TSS), electrical conductivity (EC), temperature, and pH, were analyzed following standard American Public Health Association (APHA) guidelines. Among the isolates, <em>Aspergillus aculeatus</em> (KCHW-1) and <em>Cladosporium tenuissimum</em> (MNDS-3) exhibited the highest decolorization efficiency and were utilized for consortium development. Effects of temperature, pH, agitation, carbon and nitrogen sources were also measured for optimization for decolorization potential of developed consortium. The fungal consortium, designated as KCMN-13, demonstrated remarkable decolorization efficiencies of 95.26, 97.51, and 98.23 % for Reactive Orange 16 (200 mg/L), Reactive Green 19 (200 mg/L), and Remazol Brilliant Blue R (200 mg/L), respectively. When applied to real textile effluent (20 L), the consortium achieved significant reductions in biological oxygen demand (BOD, 81.40 %), chemical oxygen demand (COD, 79.47 %), and TDS (76.71 %). Additionally, GC-MS analysis showed partially (three) to complete degradation (eight) of various compounds and also formation of new intermediates (ten) after treatment of developed fungal consortia revealed effectiveness of fungal consortia for efficient biodegradation of real textile effluent. Toxicity assessments based on seed germination and plant growth revealed that untreated textile effluent inhibited seed germination (77 %) and reduced root (12.36 ± 1.41 cm) and shoot lengths (9.43 ± 1.23 cm) compared to treated effluent and tap water (100 % germination). The treated effluent effectively mitigated toxicity, demonstrating the potential of the fungal consortium for sustainable bioremediation of textile effluent.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100705"},"PeriodicalIF":5.4,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}