Water, Air, & Soil Pollution最新文献_第4页

Cost-Effective Removal of Cu(II) and Cd(II) from Wastewater Using Walnut Shell-Immobilized Amberlite XAD-4 as a Sorbent 核桃壳固定化Amberlite XAD-4吸附去除废水中的Cu（II）和Cd(II

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-19 DOI: 10.1007/s11270-025-08129-1

İbrahim Teğin, Selma Akdeniz, Gurbet Canpolat, Orhan Acar

{"title":"Cost-Effective Removal of Cu(II) and Cd(II) from Wastewater Using Walnut Shell-Immobilized Amberlite XAD-4 as a Sorbent","authors":"İbrahim Teğin, Selma Akdeniz, Gurbet Canpolat, Orhan Acar","doi":"10.1007/s11270-025-08129-1","DOIUrl":"10.1007/s11270-025-08129-1","url":null,"abstract":"<div><p>In this study, a cost-effective and environmentally friendly solid-phase extraction (SPE) method using walnut shell-immobilised on Amberlite XAD-4 (WNS-XAD-4) was developed to pre-concentrate and determine Cu(II) and Cd(II) ions in water samples prior to flame atomic absorption analysis (FAAS). The low-cost adsorbent, prepared by immobilizing waste walnut shells on Amberlite XAD-4 (WNS-XAD-4), was characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Thermal Gravimetric Analysis (TGA), and Brunauer–Emmett–Teller (BET) analysis. Under optimal conditions, the method achieved recoveries of 95.7% for Cu(II) and 100% for Cd(II) using 5.0 mL of 1.5 mol L<sup>−1</sup> HNO<sub>3</sub> as eluent. The detection limits were found as 0.582 μg L<sup>−1</sup> for Cu(II) and 0.03 μg L<sup>−1</sup> for Cd(II) with preconcentration factors of 10 and 40, respectively. The accuracy of the method was validated using the certified aquatic plant reference material BCR-670 and successfully applied to various real water samples, including those from Lake Van, Billoris Spa, tap water, salt water and wastewater from Siirt, Turkey.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 8","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-08129-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084972","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

Plastic Waste in Marine Ecosystems: Identification Techniques and Policy Interventions 海洋生态系统中的塑料废物：识别技术和政策干预

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-19 DOI: 10.1007/s11270-025-08092-x

Trisa Das, Niloy Das, Mst. Farzana Rahman Zuthi, Sudip Kumar Pal, Eckhard Kraft, Thomas Haupt, Susanne Kuehlewindt

{"title":"Plastic Waste in Marine Ecosystems: Identification Techniques and Policy Interventions","authors":"Trisa Das, Niloy Das, Mst. Farzana Rahman Zuthi, Sudip Kumar Pal, Eckhard Kraft, Thomas Haupt, Susanne Kuehlewindt","doi":"10.1007/s11270-025-08092-x","DOIUrl":"10.1007/s11270-025-08092-x","url":null,"abstract":"<div><p>The presence of plastics in the environment, particularly within marine ecosystems, has emerged as a significant concern due to their persistence and potentially harmful effects on human health, wildlife, and ecological systems. Although several studies have explored plastic pollution, its identification methods, and policies aimed at prevention, there remains a notable gap in research specifically focused on the marine environment. This review analyzes approximately 120 Scopus research papers, providing an overview of marine plastic pollution, specifically focusing on identification methods and associated policy measures. The findings reveal that major packaging materials, polyethylene, and polypropylene, are often found in terrestrial and aquatic ecosystems, contributing to understanding marine pollution dynamics. It is estimated that around 353.29 million tonnes of plastic waste are generated annually, with 79.33 million tonnes being mismanaged or entering waterbodies. The paper also highlights significant spatiotemporal variations in the prevalence of plastic polymers and their products, influenced by factors such as physical properties (density, surface area, and size), tidal patterns, and geographic distribution of river mouths. Infrared and Raman spectroscopy are the most reliable and sensitive ground-based identification methods, providing high spatial resolution. Conversely, machine learning and deep learning-based intelligent recognition systems offer advanced remote sensing for automated identification of plastics from remote locations. Implementing policies aligned with the Sustainable Development Goals on marine plastic waste and promoting a circular lifecycle for plastics is essential for addressing this critical environmental issue. This review integrates scientific findings with policy initiatives, which enhance legislative procedures and international cooperation and safeguard marine ecosystems.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 8","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084973","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

Treatment of Cheese Wastewater by Coagulation-Flocculation Coupled with Heterogeneous Photocatalysis Using a New Synthesized TiO2 Anatase: Treatment Efficiency and Phytotoxicity evaluation 新型合成锐钛矿TiO2混凝-絮凝-多相光催化处理奶酪废水的效果及植物毒性评价

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-19 DOI: 10.1007/s11270-025-08131-7

Kaltoum Belkodia, Mohammed-amine Edaala, El mountassir El mouchtari, Hafid Achtak, Abdelaziz Alaoui Tahiri, Samir Briche, Salah Rafqah

{"title":"Treatment of Cheese Wastewater by Coagulation-Flocculation Coupled with Heterogeneous Photocatalysis Using a New Synthesized TiO2 Anatase: Treatment Efficiency and Phytotoxicity evaluation","authors":"Kaltoum Belkodia, Mohammed-amine Edaala, El mountassir El mouchtari, Hafid Achtak, Abdelaziz Alaoui Tahiri, Samir Briche, Salah Rafqah","doi":"10.1007/s11270-025-08131-7","DOIUrl":"10.1007/s11270-025-08131-7","url":null,"abstract":"<div><p>The main objective of this research was to evaluate the treatment efficiency of cheese wastewater containing organic pollutants by combining coagulation-flocculation with ferric chloride (FeCl<sub>3</sub>) and heterogeneous photocatalysis in which a new synthesized TiO<sub>2</sub> was used under UV-A (600 W) irradiation. Coagulation-flocculation experiments showed that the removal of turbidity, chemical oxygen demand (COD), and biological oxygen demand (BOD<sub>5</sub>) were 98.83, 49.23, and 40.58%, respectively, at a coagulant dose of 0.4 Fe<sup>3+</sup> g L<sup>−1</sup>. Thereafter, the application of TiO<sub>2</sub>-based photocatalysis process to the pretreated cheese wastewater improved the COD reduction from 3179.26 mg O<sub>2</sub> L<sup>−1</sup> to 437.47 mg O<sub>2</sub> L<sup>−1</sup> with a removal percentage of 86.24%, using the optimized conditions given by pH (4); TiO<sub>2</sub> (0.5gL<sup>−1</sup>), and 16 h for irradiation time. Finally, cheese wastewater samples were examined for their phytotoxicity, before and after treatments, through seed germination/root elongation tests using tomato, cucumber, and alfalfa seeds. The experimental results showed a significant decrease in toxicity of the treated cheese wastewater using the combined process. These findings are encouraging and support the possible use of treated cheese wastewater as an additional freshwater source for irrigation.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 8","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084971","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

Exploring Fate of Fipronil in Different Agricultural Soils Using Adsorption–Desorption and Degradation Processes 利用吸附-解吸和降解过程探索氟虫腈在不同农业土壤中的归宿

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-16 DOI: 10.1007/s11270-025-08137-1

Anjali Jaiswal, Animesh Tripathi, Suresh Kumar Dubey

{"title":"Exploring Fate of Fipronil in Different Agricultural Soils Using Adsorption–Desorption and Degradation Processes","authors":"Anjali Jaiswal, Animesh Tripathi, Suresh Kumar Dubey","doi":"10.1007/s11270-025-08137-1","DOIUrl":"10.1007/s11270-025-08137-1","url":null,"abstract":"<div><p>The adsorption–desorption characteristics of fipronil vary widely among soil types and are intricate and complex. These interactions greatly influence its environmental behaviour, impacting its mobility, bioavailability, persistence, and possible risks. To properly anticipate the behaviour of fipronil in different soil ecosystems, in-depth studies focusing on particular soil features and local environmental variables are required. Adsorption–desorption characteristics of fipronil on three different soils in Eastern Uttar Pradesh were studied. Distribution coefficient (K<sub>d</sub>) values ranged from 2.90—0.686 L kg<sup>−1</sup>, found maximum for soil S3 and minimum for soil S2 and had a close relationship with the soil's organic carbon content. The adsorption capacities of different soils were as follows: vertisol (S3) > inceptisol (S1) > alfisol (S2). Freundlich model is a better fit for the adsorption isotherms, and Freundlich adsorption coefficients (K<sub>f</sub>) values increased as the soils' organic carbon content increased. Maximum hysteresis effect (minimum Hysteresis-Index) was observed for soil S3. The calculated Gibbs energy change (ΔG) value for each soil was ~ 13 kJ mol<sup>−1</sup>, indicating that van der Waals force is predominant in adsorption of fipronil in the soil. The degradation rate was found to be maximum for soil S3 and minimum for soil S2. It is imperative to comprehend and manage these processes with the intent of ensuring the safe use of fipronil in industry, agriculture, and other sectors for the maintenance of environmental health. Designing soil and water remediation-techniques requires understanding these features since adding materials that improve adsorption can help immobilise pollutants like pesticides including fipronil.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073620","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

Optimization of Photocatalytic Degradation Conditions of Rose Bengal Dye Using Biomass-Derived Carbon Dots 生物质碳点光催化降解孟加拉玫瑰染料的条件优化

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-16 DOI: 10.1007/s11270-025-08083-y

Tripti Tripti, Arpita Arpita, Sandeep Kumar, Parmod Kumar

{"title":"Optimization of Photocatalytic Degradation Conditions of Rose Bengal Dye Using Biomass-Derived Carbon Dots","authors":"Tripti Tripti, Arpita Arpita, Sandeep Kumar, Parmod Kumar","doi":"10.1007/s11270-025-08083-y","DOIUrl":"10.1007/s11270-025-08083-y","url":null,"abstract":"<div><p>This study shows synthesis of carbon dots (CDs) using a simple pyrolysis method at 250 °C for discrete durations- 1 h and 2 h using <i>Sorghum</i> as biomass precursor for degradation of Rose bengal (RB) dye. The as-fabricated CDs were analyzed through various techniques, including X-ray diffraction, High-resolution transmission electron microscopy, Fourier transform infrared, X-ray photoelectron spectroscopy, and UV–vis spectroscopy. The as-obtained CDs are turbostratic almost spherical, having particle size in the range of 4.24 nm to 7.09 nm. FTIR measurement analyzed the functional groups present on the surface of CDs. The optical band gap of the CDs decreased from 2.99 eV to 2.39 eV as pyrolysis time increased. In addition to this, a series of experiments were designed to evaluate the interaction of various operating parameters including catalyst amount, pH, initial dye concentration, irradiation time, on degradation efficiency (removal time). With the degradation of 86.10% under UV light irradiation, the synthesized CDs exhibit remarkable capabilities as photocatalysts and offer valuable assistance in decontaminating wastewater.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073956","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

Air Quality Prediction Based on a New Discrete Variable Weight Multivariable Grey Model 基于新的离散变权多变量灰色模型的空气质量预测

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-16 DOI: 10.1007/s11270-025-08136-2

Xi Li, Jianlong Guo, Zhengran Qiao, Fei Zhao

{"title":"Air Quality Prediction Based on a New Discrete Variable Weight Multivariable Grey Model","authors":"Xi Li, Jianlong Guo, Zhengran Qiao, Fei Zhao","doi":"10.1007/s11270-025-08136-2","DOIUrl":"10.1007/s11270-025-08136-2","url":null,"abstract":"<div><p>With the rapid development of industrialization and urbanization, air pollution has become a major environmental problem in developing areas. Existing prediction models have some limitations in dealing with limited data samples, nonlinear trends and regional differences. Therefore, an improved grey prediction framework is constructed and applied to the air quality prediction of Yangquan City and Jincheng City in Shanxi Province. Firstly, grey correlation analysis is used to identify the main influencing factors, including population, urbanization rate, secondary industry added value, etc. Secondly, fractional grey model is constructed to predict the future evolution trend of the above factors. Subsequently, multivariate discrete variable weight grey model is established to fit and predict the concentration of air pollutants. Finally, scenario simulation analysis is carried out under different influencing factors scenarios. The research results show that by 2030, the annual average concentrations of PM<sub>2.5</sub>, PM<sub>10</sub>, and O<sub>3</sub> in Yangquan City are expected to decrease to 34.01 µg/m<sup>3</sup>, 67.05 µg/m<sup>3</sup> and 130.61 µg/m<sup>3</sup>, respectively. The corresponding concentrations in Jincheng City are expected to be 30.97 µg/m<sup>3</sup>, 61.23 µg/m<sup>3</sup> and 140.85 µg/m<sup>3</sup>, respectively. In addition, the air pollution level increases with the growth of population, the number of motor vehicles and the scale of secondary industry, but decreases with the increase of urbanization rate. When the annual growth rate of urban population and vehicles is controlled within 1%, and the annual growth rate of secondary industry added value does not exceed 5%, the adverse impact on air quality is small. Based on the research findings, it is recommended that local governments strengthen environmental protection while promoting industrial development, and further improve air quality through the management of traffic and population.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074089","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

Removal of Favipiravir from Wastewater with Membrane Bioreactor: Operational Parameters, Kinetics and Risk Assessment 膜生物反应器去除废水中的法匹拉韦：操作参数、动力学和风险评估

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-16 DOI: 10.1007/s11270-025-07948-6

Bahriye Eryildiz-Yesir, Ismail Koyuncu

{"title":"Removal of Favipiravir from Wastewater with Membrane Bioreactor: Operational Parameters, Kinetics and Risk Assessment","authors":"Bahriye Eryildiz-Yesir, Ismail Koyuncu","doi":"10.1007/s11270-025-07948-6","DOIUrl":"10.1007/s11270-025-07948-6","url":null,"abstract":"<div><p>Antiviral drugs, especially those used to treat COVID-19, have recently been classified as emerging pollutants due to their persistent presence in water and wastewater. These compounds have been found in environmental matrices around the world, demonstrating that existing treatment methods are ineffective in fully removing them from water and wastewater. Therefore, this study examines the removal of favipiravir (FAV) in synthetic domestic wastewater using a membrane bioreactor (MBR). The MBR was operated at varying initial FAV concentrations (50, 100, and 150 µg/L) and solid retention times (SRTs) (45, 30, and 15 days). FAV concentration was measured in aqueous phase (influent and effluent) and sludge samples. Based on the obtained results, the biological degradation constant and efficiency of pharmaceutical removal were determined. An environmental risk assessment was also conducted. Results showed that FAV degradation rate was slightly decreased with increasing initial FAV concentration. However, FAV was removed > 99% regardless of initial FAV concentration. As the initial FAV concentration increased from 50 µg/L to 150 µg/L, the FAV concentration in sludge samples decreased, ranging from 90.8 μg/g to 41.3 μg/g. FAV removal efficiency increased from 48.9% to 86.4% with increasing SRT. The study of environmental risk quotients (RQ) indicates high risk of FAV (RQ > 1).</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-07948-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073955","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

Fabrication of Graphene Oxide and Ceramic Magnesia Immobilized Dual Clay Supported Alginate and Pectin Biopolymeric Hybrid Material for Hazardous Dyes Removal 氧化石墨烯和陶瓷镁固定化双粘土负载海藻酸盐和果胶生物聚合物杂化材料的制备及其对有害染料的去除

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-16 DOI: 10.1007/s11270-025-08120-w

Vellaiyapillai Sathiyajothi, Antonysamy Jeyaseelan, Natrayasamy Viswanathan

{"title":"Fabrication of Graphene Oxide and Ceramic Magnesia Immobilized Dual Clay Supported Alginate and Pectin Biopolymeric Hybrid Material for Hazardous Dyes Removal","authors":"Vellaiyapillai Sathiyajothi, Antonysamy Jeyaseelan, Natrayasamy Viswanathan","doi":"10.1007/s11270-025-08120-w","DOIUrl":"10.1007/s11270-025-08120-w","url":null,"abstract":"<div><p>The speedy industrialization and explosion of the populace consequences in raised usage of potable water and its resulting disposal causes ecological contamination. Though, the graphene oxide (GO) and ceramic material namely MgO were reveals the low dye adsorption capacity in the field applications. The GO and MgO materials have very fine particles causes the pressure drop during filtration, so it reduces the adsorption capacity. To conquer this issue and improve the surface area, the GO and MgO materials combine with clay (KA/HT) and biopolymers hybrid material was developed for improving adsorption capacity. Herein, GO and MgO fabricated hydrotalcite (HT)/kaolin (KA) supported alginate (Alg) and pectin (Pect) which gives GO/MgO/HT-KA@Alg/Pect hybrid material for the adsorption of malachite green (MG) and methylene blue (MB). The hybrid composite possess the stable and easy filterable nature for the adsorption of MB and MG dye. The adsorption isotherm investigation reveals that the hybrid composite possesses the adsorption capacity of 42.00 and 40.50 mg/g for MG and MB dyes within 40 min. The enhance adsorption was noted at a pH level 9 for MG and MB and its reached equilibrium at 40 min. The synthesized hybrid material was characterized by FTIR, SEM and EDAX studies. In addition, dye adsorption mechanism of hybrid material was also discussed in detail. The dye adsorption was followed by Langmuir isotherm and pseudo-second-order models. The fabricated material can be revealed as a proficient adsorbent for water/wastewater treatment method because of the high dye adsorption and reusable efficiency.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074088","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

Advanced TiO2 and Al2O3 Modularized Adsorbents and Practical Application Strategies for Enhanced Arsenic Removal from Water 新型TiO2和Al2O3模块化吸附剂及强化水中砷去除的实际应用策略

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-15 DOI: 10.1007/s11270-025-08094-9

Younghee Jang, Sung Su Kim, D. Duc Nguyen

{"title":"Advanced TiO2 and Al2O3 Modularized Adsorbents and Practical Application Strategies for Enhanced Arsenic Removal from Water","authors":"Younghee Jang, Sung Su Kim, D. Duc Nguyen","doi":"10.1007/s11270-025-08094-9","DOIUrl":"10.1007/s11270-025-08094-9","url":null,"abstract":"<div><p>The increasing concentration of heavy metal contamination, especially arsenic, in water resources presents significant risks to both human health and overall water quality. This study examines the adsorption efficiency of TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> powders for arsenic removal from drinking water. Fourier-transform infrared spectroscopy, Brunauer–Emmett–Teller, and zeta potential were used to investigate the correlation between adsorbent properties and performance. Modularized adsorbents, specifically hollow-fiber and carbon block formats, were introduced and demonstrated outstanding arsenic removal efficiency. In particular, the TiO<sub>2</sub>-based adsorbents achieved over 99.9% arsenic removal in simulated and actual drinking water. In a pilot test, the hollow-fiber module maintained complete removal for over 16 days using real groundwater. The study emphasizes the crucial role of surface charge and hydroxyl groups in arsenic adsorption, demonstrating the practical effectiveness of these innovative adsorbents in large-scale water purification systems.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949474","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

Utilizing Industrial Wastewater for Cultivation of Chlorella vulgaris NIES-227: A Study on Biodiesel Yield Optimization with Alkali Catalysts 利用工业废水培养小球藻NIES-227：碱催化剂优化生物柴油产率的研究

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-05-15 DOI: 10.1007/s11270-025-08093-w

Sonika Kumari, Vinod Kumar, Richa Kothari, Pankaj Kumar

{"title":"Utilizing Industrial Wastewater for Cultivation of Chlorella vulgaris NIES-227: A Study on Biodiesel Yield Optimization with Alkali Catalysts","authors":"Sonika Kumari, Vinod Kumar, Richa Kothari, Pankaj Kumar","doi":"10.1007/s11270-025-08093-w","DOIUrl":"10.1007/s11270-025-08093-w","url":null,"abstract":"<div><p>Microalgae, ubiquitous in diverse aquatic ecosystems, present a promising avenue for energy generation through cultivation. This study focused on the cultivation of indigenous <i>Chlorella vulgaris</i> using both dairy wastewater (DWW) and pharmaceutical industry wastewater (PIWW) to ascertain its viability for biodiesel production. The results showed that biodiesel yields of 78% and 76% were attained from <i>C. vulgaris</i> biomass cultivated using DWW utilizing potassium hydroxide (KOH) and sodium hydroxide (NaOH) catalysts, respectively. The results demonstrated its efficacy in wastewater treatment, with removal efficiencies of 63–60% for total dissolved solids (TDS), 82–93% for biochemical oxygen demand (BOD), 73–85% for chemical oxygen demand (COD), 80% for total Kjeldahl nitrogen (TKN), and 82–88% for total phosphorus (TP), complementing biodiesel production. This dual-purpose approach emphasizes the potential of microalgae for realizing sustainable solutions at the intersection of environmental management and bioenergy production.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949475","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