International Journal of Environmental Science and Technology最新文献_第7页

Valorization of Posidonia oceanica into lignin, cellulose and activated carbon for congo red removal 大洋洲波西多尼亚活化成木质素、纤维素和活性炭去除刚果红的研究

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07444-2

R. Mnafki, R. Khiari, K. Elghniji, Y. Moussaoui, C. Espro

{"title":"Valorization of Posidonia oceanica into lignin, cellulose and activated carbon for congo red removal","authors":"R. Mnafki, R. Khiari, K. Elghniji, Y. Moussaoui, C. Espro","doi":"10.1007/s13762-026-07444-2","DOIUrl":"10.1007/s13762-026-07444-2","url":null,"abstract":"<div><p>This study investigates the valorization of <i>Posidonia oceanica</i> residues by extracting cellulose and lignin. Then, activated carbon is prepared for use in removing Congo red (CR) dye from aqueous solutions. The biomass underwent autohydrolysis, delignification, and bleaching to obtain purified cellulose; meanwhile, lignin was recovered via acetoformosolv treatment. Activated carbon was synthesized via phosphoric acid activation and thermal treatment at 600 °C. The obtained materials were comprehensively characterized using Fourier transform infrared spectroscopy (FTIR) to identify surface functional groups; scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM/EDX) to examine morphology and elemental composition; Brunauer–Emmett–Teller (BET) analysis to determine the specific surface area; and the Barrett–Joyner–Halenda (BJH) method to analyze pore structure. The point of zero charge and surface functional groups were also determined. Adsorption experiments revealed that the activated carbon exhibited the highest adsorption capacity, followed by the cellulose and the lignin. The maximum adsorption capacities were 151.51 mg·g<sup>−1</sup> for activated carbon, 93.40 mg·g<sup>−1</sup> for cellulose, and 62.79 mg·g<sup>−1</sup> for lignin. Optimal removal occurred under acidic conditions (pH ≈ 4). These results demonstrate that <i>Posidonia oceanica</i>-derived materials are promising, low-cost, eco-friendly adsorbents for wastewater treatment.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986316","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

Environmental availability and human health risks of Zn and Mn in battery waste assessed by sequential extraction 电池废物中锌和锰的环境可得性和人类健康风险的序贯提取评估

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07460-2

J. C. Guimarães, F. V. M. Pontes, V. S. Lisboa, L. de Freitas Pereira, P. F. da Gama, B. J. M. Miranda, J. F. Paulino

{"title":"Environmental availability and human health risks of Zn and Mn in battery waste assessed by sequential extraction","authors":"J. C. Guimarães, F. V. M. Pontes, V. S. Lisboa, L. de Freitas Pereira, P. F. da Gama, B. J. M. Miranda, J. F. Paulino","doi":"10.1007/s13762-026-07460-2","DOIUrl":"10.1007/s13762-026-07460-2","url":null,"abstract":"<div><p>In Brazil, a considerable portion of electronic waste, such as batteries and accumulators, is still discarded with household trash and sent to landfills without sanitary or environmental control. Improper disposal can lead to the accumulation of potentially toxic metals, posing risks to ecosystems and human health. This study evaluated the performance of a modified Bureau Community of Reference sequential extraction protocol applied to battery waste, focusing on the environmental availability of Zn and Mn. The protocol showed good repeatability, with relative standard deviations ranging from 0.627 to 16.4%. Spike and recovery assays yielded satisfactory values, with recoveries between 94.3% and 134%, while extraction yields ranged from 94.3% to 130% across all samples. These results confirm the suitability of the modified protocol for evaluating Zn and Mn in this matrix. A significant mobilization of both metals occurred in the first three extraction stages, highlighting the potential for soil and water contamination under improper disposal. The potentially mobile fraction of Zn was higher than 80%, indicating a greater environmental threat compared to Mn. To complement the chemical assessment, a hypothetical risk scenario was modeled for disposal in urban soils. Using the risk assessment tool, exposure of adults and children was simulated through soil ingestion and consumption of vegetables cultivated in contaminated areas. The modeling revealed potential health risks for both groups through at least one exposure pathway. These findings reinforce the urgency of safer disposal practices and recycling strategies for battery waste, reducing risks to both the environment and public health.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07460-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Membrane-based treatment strategies for textile wastewater reuse: assessing reuse criteria with operational needs 纺织废水再利用的膜处理策略：用操作需求评估再利用标准

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07463-z

E. O. Koroglu, Y. Sarigiguzel, H. Guney, S. Turkes, O. Isik, S. Sirlibas, O. Keskinkan, B. Sari

{"title":"Membrane-based treatment strategies for textile wastewater reuse: assessing reuse criteria with operational needs","authors":"E. O. Koroglu, Y. Sarigiguzel, H. Guney, S. Turkes, O. Isik, S. Sirlibas, O. Keskinkan, B. Sari","doi":"10.1007/s13762-026-07463-z","DOIUrl":"10.1007/s13762-026-07463-z","url":null,"abstract":"<div><p>Wastewater treatment and reuse are critical for water intensive sectors like the textile industry to ensure sustainability and combat freshwater scarcity. This study investigates the treatment and reuse potential of denim industry wastewater through four membrane-based configurations combining coagulation, ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO) under low (2/6/10 bar) and high (5/10/15 bar) pressures. The systems were evaluated against two distinct target standards; literature-based washing criteria (Alternative-1) and the actual, operational water quality of the final washing tank (Y4) within a modified reverse washing process (Alternative-2). The results demonstrated that configurations with coagulation pretreatment (Scenarios 3 and 4) achieved outstanding pollutant removal efficiencies, with chemical oxygen demand (COD), total suspended solids (TSS), and color removals reaching 97–100%, and electrical conductivity (EC) and total dissolved solids (TDS) reductions standing at 96–97%, successfully satisfying Alternative-1. In contrast, scenarios without pretreatment yielded lower salt rejections (77–89%). From an economic standpoint, meeting Alternative-1 required a complex Coagulation+NF/RO system with a 69% total water recovery rate. Crucially, Alternative-2 required only a standalone UF membrane operated at 5 bar (Scenario 2), which increased the system recovery rate to 81%. Evaluating reuse criteria based on real operational needs rather than standard literature metrics provides an 80–85% reduction in total treatment costs. Therefore, a holistic, process integrated approach is highly recommended for viable textile wastewater reclamation.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148985360","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

Development of eco-friendly bi-polymeric adsorptive beads for the efficient removal of sulfamethoxazole from aquatic environment 水生环境中高效去除磺胺甲恶唑的环保型双聚吸附珠的研制

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07423-7

G. Prasannamedha, P. S. Kumar, S. Shivaani, M. Kokila, R. Hithesh, S. Bhavani, G. Rangasamy

{"title":"Development of eco-friendly bi-polymeric adsorptive beads for the efficient removal of sulfamethoxazole from aquatic environment","authors":"G. Prasannamedha, P. S. Kumar, S. Shivaani, M. Kokila, R. Hithesh, S. Bhavani, G. Rangasamy","doi":"10.1007/s13762-026-07423-7","DOIUrl":"10.1007/s13762-026-07423-7","url":null,"abstract":"<div><p>The extensive availability of pharmaceuticals in aquatic environments has acquired more focus because of their ecotoxicity and non-biodegradable nature. Bipolymeric beads developed from carboxymethyl cellulose and sodium alginate were utilized in this study to adsorb the sulphonamide antibiotic sulfamethoxazole (SMX) from water bodies. Beads showed irregular texture due to atmospheric drying with an active specific surface area of 5.185 m<sup>2</sup> g<sup>−1</sup>. While beads subjected to manual press showed no evidence of crack or rupture, prolonged exposure to atmospheric drying lead to the formation of minute rupture as observed in SEM analysis. Experimental parameters like adsorbent dosage = 0.7 g L<sup>−1</sup>, contact time = 80 to 100 min, pH = 5.7±0.1 were optimized through batch mode. The environmental sustainability of bipolymeric beads was examined with different real-time water samples. The adsorption capacity of bipolymeric beads in removing SMX, observed from the Freundlich adsorption isotherm, was 21.575 (mg g<sup>−1</sup>) (L mg<sup>−1</sup>)<sup>1/n</sup> due to numerous mechanisms like hydrogen bonding, and π–π interaction. The value of 1/n (0.22) denotes that the bipolymeric bead surface is highly heterogeneous in nature, where adsorption is favourable. The current research demonstrated that bipolymeric beads are an excellent wastewater treatment material with promising industrial applications due to their easy synthesis, biodegradable properties, eco-friendly nature, stability, and remarkable engineered adsorption properties.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148985362","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

Avocado peel waste as a biosorbent for crystal violet dye: insights into equilibrium, kinetics, thermodynamics, and computational analysis 牛油果皮废料作为结晶紫染料的生物吸附剂：对平衡、动力学、热力学和计算分析的见解

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07427-3

N. El Mail, S. Benaisa, A. Chraka, M. M. Cerrillo-Gonzalez, K. Benahdach, A. Wahby, A. laghdach, B. Arhoun

{"title":"Avocado peel waste as a biosorbent for crystal violet dye: insights into equilibrium, kinetics, thermodynamics, and computational analysis","authors":"N. El Mail, S. Benaisa, A. Chraka, M. M. Cerrillo-Gonzalez, K. Benahdach, A. Wahby, A. laghdach, B. Arhoun","doi":"10.1007/s13762-026-07427-3","DOIUrl":"10.1007/s13762-026-07427-3","url":null,"abstract":"<div><p>Transforming agricultural waste into low-cost biosorbents presents a viable and promising approach to waste management. This work investigated the use of raw avocado peel (AP) as biosorbent to remove crystal violet (CV) dye from wastewater effluents. The Biosorption kinetic analysis indicates that pseudo-first-order models better describe the uptake of CV dye. The Langmuir model revealed a maximum adsorption capacity 49.71 mg g<sup>−1</sup> under optimal conditions (solid-to-liquid (S/L) ratio of 7 g L<sup>−1</sup>; pH of 6.43, 25 °C). Thermodynamic analysis indicated that the biosorption of CV dye using AP was both exothermic and spontaneous. Regeneration studies demonstrated that the adsorbent remained effective for up to five consecutive cycles when treated with 0.1 NaOH, with a recovery rate of 90% in the first cycle and no significant loss in adsorption efficiency. Scanning electron microscopy was used to examine the surface morphology, while Fourier Transform Infrared Spectroscopy was utilized to identify the functional groups involved in the dye adsorption. Theoretical investigations employing Density Functional Theory (DFT) simulations yielded useful information about CV's electrical characteristics. The results revealed specific electron-donating and electron-accepting sites in the CV molecule, enabling adsorption onto the principal components of AP, such as cellulose, hemicellulose, and lignin. Furthermore, Molecular Dynamics (MD) simulations were used to investigate the interaction of CV with the AP (001) surface. The greatest adsorption energy measured was 10,583.89 kcal/mol, indicating a significant interaction between CV and the AP. The results obtained in this study highlight the potential of AP as biosorbent for industrial effluents.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986383","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

Non-stationarity in marginal and dependence structures of key climate variables from historical to future scenarios 关键气候变量从历史到未来情景的边缘和依赖结构的非平稳性

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07457-x

M. Nazeri Tahroudi, C. De Michele

{"title":"Non-stationarity in marginal and dependence structures of key climate variables from historical to future scenarios","authors":"M. Nazeri Tahroudi, C. De Michele","doi":"10.1007/s13762-026-07457-x","DOIUrl":"10.1007/s13762-026-07457-x","url":null,"abstract":"<div><p>This study investigates global trends in three bioclimatic variables (ice days, warm days, and growing season length) across two periods: historical (1850–2015) and future (2015–2100) under the Shared Socioeconomic Pathway 1–2.6 and 5–8.5 scenarios. The results indicate that ice days are more frequent in the historical period compared to Shared Socioeconomic Pathway 1–2.6 (60% of cases) and 5–8.5 (58%). Warm days show increasing trends under both future scenarios, consistent with global warming. Analysis of marginal distributions reveals that Generalized Extreme Value and Logistic are the dominant distributions. In the historical period, the Generalized Extreme Value distribution ranks first for all three variables. Under the Shared Socioeconomic Pathway 5–8.5, it remains dominant for growing season length and ice days, but warm days shift to the Logistic distribution, indicating that what were historically classified as extreme warm events become part of the regular temperature regime under the evolving climate, fundamentally altering the statistical reference baseline against which 'extremeness' is defined. Trivariate vine copula analysis indicates increased diversity of copula families and more frequent use of rotational copulas under Shared Socioeconomic Pathway 5–8.5, along with reduced disparity between the best-fitting copula and others, reflecting more uniform extreme value behavior. Under Shared Socioeconomic Pathway 5–8.5, a one-day increase in warm days corresponds to an average 0.5-day increase in growing season length and a 0.79-day reduction in ice days globally. Tail dependence analysis shows increased uniformity in extreme values under future scenarios. These findings demonstrate that climate change fundamentally alters the statistical behavior of temperature-based indices, with extremes becoming more frequent and interconnected, necessitating adaptive strategies in agriculture, water resources management, and infrastructure planning.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986315","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

High-loaded MBR treating municipal wastewater: Does increasing organic loading rate lead to better performance and energy recovery? 高负荷MBR处理城市污水：增加有机负荷率是否会带来更好的性能和能源回收？

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-16 DOI: 10.1007/s13762-026-07431-7

G. Faridizad, E. Abdollahzadeh Sharghi, B. Bonakdarpour

{"title":"High-loaded MBR treating municipal wastewater: Does increasing organic loading rate lead to better performance and energy recovery?","authors":"G. Faridizad, E. Abdollahzadeh Sharghi, B. Bonakdarpour","doi":"10.1007/s13762-026-07431-7","DOIUrl":"10.1007/s13762-026-07431-7","url":null,"abstract":"<div><p>High organic loading rates (OLRs) are known to enhance resource recovery in high-rate activated sludge systems; however, their impact on membrane performance in high-loaded membrane bioreactors (HL-MBRs) is not well studied. This study investigated the effect of increasing OLR on system performance, membrane fouling, and energy recovery of an HLMBR treating simulated municipal wastewater. The HL-MBR was operated at two OLRs of 2.4 and 5.76 kg COD m<sup>−3</sup> d<sup>−1</sup> and constant SRT of 1 day. The system maintained high treatment efficiency at both OLRs, with COD removal consistently above 93%. Increasing OLR significantly improved COD recovery (from 44.1 ± 0.01 to 61.2 ± 0.03%) and biosorption efficiency (from 71 ± 1 to 97 ± 2%), accompanied by enhanced bioflocculation and reduced sludge supernatant turbidity. Also, increasing OLR from 2.4 to 5.76 kg COD m<sup>−3</sup> d<sup>−1</sup> raised carbohydrates in the extracellular polymeric substances (EPS) by 30%, decreased loosely bound EPS from 55 to 35 mg g<sup>−1</sup> MLVSS, and increased tightly bound EPS from 174 to 244 mg g<sup>−1</sup> MLVSS. Despite a constant methane yield per biomass (128.64 mL CH<sub>4</sub> g<sup>−1</sup> VSS), total recoverable energy increased from 11 to 27 Wh under higher OLR due to enhanced substrate loading and recovery efficiency. However, higher OLR increased membrane fouling and cake layer resistance (from 63.4 to 79.5%) due to accumulation of carbohydrate fraction of soluble microbial product, and EPS protein-to-carbohydrate ratio in the cake layer rose 3.5-fold. These findings highlight fouling control as a critical constraint that must be addressed to fully exploit the resource recovery potential of high-rate MBR systems.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986384","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

Iron(III) complex as a Fenton-like catalyst for wastewater treatment at near-neutral pH: catalytic performance and reusability 铁（III）配合物作为fenton类催化剂在近中性pH下处理废水：催化性能和可重复使用性

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-15 DOI: 10.1007/s13762-026-07421-9

L. C. de Souza, F. P. da Silva, A. M. F. Linhares, A. Casellato, F. V. da Fonseca

{"title":"Iron(III) complex as a Fenton-like catalyst for wastewater treatment at near-neutral pH: catalytic performance and reusability","authors":"L. C. de Souza, F. P. da Silva, A. M. F. Linhares, A. Casellato, F. V. da Fonseca","doi":"10.1007/s13762-026-07421-9","DOIUrl":"10.1007/s13762-026-07421-9","url":null,"abstract":"<div><p>Conventional Fenton processes are effective for degrading recalcitrant contaminants; however, they are hindered by their requirement for strongly acidic conditions and the generation of large amounts of iron-containing sludge. To overcome these limitations, an iron(III) Schiff base complex (FeL) was synthesized, characterized, and evaluated as a Fenton-like catalyst active at near-neutral pH for the degradation of a model organic contaminant, Drimaren Red X-6BN (DRX-6BN), under dark conditions. The reaction parameters were systematically examined, and the degradation kinetics were interpreted using the Behnajady–Modirshahla–Ghanbery model. Under the best conditions (pH ~6.0, 1.17 × 10<sup>–2</sup> mol L<sup>−1</sup> H<sub>2</sub>O<sub>2</sub>, 0.21–0.28 g L<sup>−1</sup> FeL), approximately 85% removal was achieved without photoactivation. The catalyst retained 68% efficiency after seven consecutive cycles, indicating its capacity for reuse under oxidative conditions. Possible degradation pathways were discussed, and the performance was benchmarked against related Fenton-like systems, demonstrating competitive activity under milder operational conditions. These findings highlight the potential of FeL as a promising catalyst for Fenton-like oxidation under mild pH conditions, providing a basis for further investigations toward wastewater treatment applications.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07421-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative logistic regression modeling of textile wastewater treatment by electrocoagulation and electrocoagulation–microfiltration 电絮凝与电絮凝-微滤处理纺织废水的比较logistic回归模型

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-10 DOI: 10.1007/s13762-026-07445-1

K. Elhadeuf, N. Bensalhia, N. Bougdah, C. Ben Djaballah

{"title":"Comparative logistic regression modeling of textile wastewater treatment by electrocoagulation and electrocoagulation–microfiltration","authors":"K. Elhadeuf, N. Bensalhia, N. Bougdah, C. Ben Djaballah","doi":"10.1007/s13762-026-07445-1","DOIUrl":"10.1007/s13762-026-07445-1","url":null,"abstract":"<div><p>Textile industries generate large volumes of wastewater characterized by high organic load, commonly expressed as chemical oxygen demand (COD), which poses serious environmental risks if discharged without adequate treatment. Electrocoagulation (EC) has emerged as an effective technique for textile wastewater treatment; however, its efficiency strongly depends on operating conditions and may involve high energy consumption when not properly optimized. In this study, COD reduction using electrocoagulation and a hybrid electrocoagulation–microfiltration (EC–MF) process is investigated through experimental analysis and predictive modeling. The influence of key operational parameters, namely solution pH, inter-electrode distance, applied current intensity, and transmembrane pressure, was experimentally evaluated. The results showed that near-neutral pH (≈ 7.5), an inter-electrode distance of 2 cm, and a current intensity of approximately 0.30 A provided optimal conditions for COD reduction by EC, while the coupling of EC with microfiltration significantly enhanced treatment efficiency under appropriate transmembrane pressure. To further support process optimization, COD reduction efficiency was classified using logistic regression modeling. The proposed logistic regression models achieved classification accuracies of 90% for the EC process and 85% for the EC–MF system. The EC model exhibited excellent predictive performance with an average F1-score of 0.93 and an AUC value of 0.91, while the EC–MF model achieved an average F1-score of 0.77 and an AUC value of 0.82. Performance evaluation based on confusion matrices, precision, recall, F1-score, and ROC curve analysis confirmed the robustness and reliability of both predictive models.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927459","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 treatment of mixed ındustrial wastewater by UV-assisted Fe2+/sodium percarbonate oxidation: effects of operating parameters and kinetic ınsights 紫外辅助Fe2+/过碳酸钠氧化强化处理混合ındustrial废水：操作参数和动力学的影响ınsights

IF 3.4 4区环境科学与生态学

International Journal of Environmental Science and Technology Pub Date : 2026-09-10 DOI: 10.1007/s13762-026-07447-z

D. I. Çifçi, Gül Kaykıoğlu

{"title":"Enhanced treatment of mixed ındustrial wastewater by UV-assisted Fe2+/sodium percarbonate oxidation: effects of operating parameters and kinetic ınsights","authors":"D. I. Çifçi, Gül Kaykıoğlu","doi":"10.1007/s13762-026-07447-z","DOIUrl":"10.1007/s13762-026-07447-z","url":null,"abstract":"<div><p>A wide range of resistant organic contaminants that are challenging for traditional treatment methods to eliminate can be found in complex industrial wastewaters that come from organized industrial zones. This study investigated the UV-assisted Fe<sup>2+</sup>/sodium percarbonate (UV/Fe<sup>2+</sup>/SPC) process for mixed industrial wastewater treatment originating from organized industrial zone. Process performance was evaluated by examining the effects of pH, Fe<sup>2+</sup> concentration, sodium percarbonate dose, and reaction time. While acidic conditions improved wastewater treatment, increasing Fe<sup>2+</sup> and SPC concentrations enhanced treatment efficiency by increasing radical production. The optimum conditions were determined as pH 3, 1.0 g/L Fe<sup>2+</sup>, and 2.5 g/L sodium percarbonate. Under these conditions, after 90 min of reaction time, COD, CN, and UV<sub>254</sub> removals reached 87.4%, 94.1%, and 90.2%, respectively. Under the same conditions as UV/SPC, 81.8% COD, 90.6% CN, and 83.2% UV<sub>254</sub> removal were achieved. The highest k<sub>1</sub> were obtained as 0.0277 min<sup>−1</sup> for COD, 0.0348 min<sup>−1</sup> for UV<sub>254</sub>, and 0.0414 min<sup>−1</sup> for color removal at pH 3, 1.0 g/L Fe<sup>2+</sup>, and 2.5 g/L SPC. The electrical energy consumption (EEC) was calculated as 109.8 and 117.5 kWh/kg COD removed for the UV-assisted Fe<sup>2+</sup>/SPC and UV/SPC processes, respectively. The lower EEC value indicates that UV-assisted Fe<sup>2+</sup>/SPC treatment provides a more energy-efficient treatment alternative without compromising removal performance. In conclusion, the UV-assisted Fe<sup>2+</sup>/SPC process stands out as a powerful and viable alternative for the effective treatment of complex organized industrial zone wastewaters.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927460","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}

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