Water, Air, & Soil Pollution最新文献_第6页

Hydrochemical Evaluation of Groundwater Quality and Human Health Risk Assessment of Fluoride and Nitrate: A Case Study of Pratapgarh District UP, India

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-06 DOI: 10.1007/s11270-025-07806-5

Sandhya Maurya, Ashok B. More, Garima Gupta, Abhishek Saxena, Anjali Singh

{"title":"Hydrochemical Evaluation of Groundwater Quality and Human Health Risk Assessment of Fluoride and Nitrate: A Case Study of Pratapgarh District UP, India","authors":"Sandhya Maurya, Ashok B. More, Garima Gupta, Abhishek Saxena, Anjali Singh","doi":"10.1007/s11270-025-07806-5","DOIUrl":"10.1007/s11270-025-07806-5","url":null,"abstract":"<div><p>Various of factors have contributed to groundwater contamination in the Indo-Gangetic alluvium, including mineral deposits, ion exchange, precipitation, overexploitation, and dissolution. In the current study, 40 different groundwater samples were sampled from different locations of Sadar block Pratapgarh district, Uttar Pradesh and various physicochemical parameters were evaluated. This research aims to investigate the groundwater quality associated with human health risks in all seasons (pre-monsoon, monsoon, and post-monsoon), analyze the reasons for seasonal differences, and identify areas with severe pollution. The water quality in PrM is 48%, in PoM it is 50%, and 48% of the sampling sites are categorized as highly polluted due to high THI value. THI values depict the highest F<sup>−</sup> and NO<sub>3</sub><sup>−</sup> contamination levels at PG 13 and P33 (THI > 5.0) in the PrM. After a health risk assessment, it was found that children and females are highly susceptible to health risks. The strongest correlation was found between TDS, EC, and fluoride (r = 0.9). This study would be extremely helpful to aid officials in identifying alternative drinking water resources in affected areas. The Piper plot revealed the presence of Cl<sup>−</sup> and some SO<sub>4</sub><sup>−</sup> type waters, which indicates strong acid dominance over weak acids, and the cation is dominated by Ca<sup>2+</sup> and some of the Mg<sup>2+</sup> type waters, indicating alkaline earth metal is dominating over alkali metals. Na–K-SO<sub>4</sub>-Cl and Ca-Mg-SO<sub>4</sub>-Cl mixed water type (23% Prm, PoM, and MoN) facies were detected. According to Gibbs’s plot, most of the samples with \"evaporation dominance\" and the rest are under “rock-water interaction”.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553726","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 Fluoride by Effective Utilization of Activated Red Mud-Bentonite as a Reactive Material for Permeable Reactive Barrier

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-06 DOI: 10.1007/s11270-025-07838-x

Sathish Nagaraj, Uma Shankar Masilamani

{"title":"Removal of Fluoride by Effective Utilization of Activated Red Mud-Bentonite as a Reactive Material for Permeable Reactive Barrier","authors":"Sathish Nagaraj, Uma Shankar Masilamani","doi":"10.1007/s11270-025-07838-x","DOIUrl":"10.1007/s11270-025-07838-x","url":null,"abstract":"<div><p>The direct consumption of fluoride-contaminated groundwater is increasing day by day without our knowledge escalating health risks. Therefore, it is imperative to carry out in-situ fluoride treatment where fluoride exposure is higher, rather than confining to small or large-scale industries. This necessitates of choosing appropriate purification methods and materials for effective treatment. The main objective of this research is to determine the adsorption/removal capacity of different proportions of activated red mud and bentonite mixture (RM:BEN) to remove fluoride from water. The characteristics of adsorption materials such as Red Mud (RM) and Bentonite (BEN) have been studied using Field Emission Scanning Electron Microscopy (FE-SEM), Energy Dispersive X-ray Spectroscopy (EDS), and X-ray diffractometer (XRD). These techniques reveal the morphological changes and a loss of crystalline nature, indicating the adsorption of fluoride on the RM:BEN mixture. Different mix proportions of activated red mud and bentonite such as 95%:05% (Mix-A), 90%:10% (Mix-B), 85%:15% (Mix-C), 80%:20% (Mix-D) was analysed to determine its fluoride adsorption characteristics. The results revealed that RM:BEN (Mix-C) mixture demonstrated a higher adsorption capacity of 2.65 mg/g than other mixtures. The adsorption isotherm and kinetics model, fitting the Langmuir and Pseudo-first-order models, suggest that monolayer physical adsorption occurs during fluoride removal. In-situ experiments showed that the maximum removal efficacy of RM:BEN (Mix-C) reached 89.52% on the 7th day under lateral flow conditions and 93.81% on the 10th day under longitudinal flow conditions.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553948","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

Impact of Varied Distillery Wastewaters on Yield Attributes, Soil Properties, and Heavy Metal Accumulation in Pea (Pisum sativum L. var. Rachna) 不同蒸馏废水对豌豆（Pisum sativum L. var. Rachna）产量属性、土壤特性和重金属积累的影响

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-06 DOI: 10.1007/s11270-025-07832-3

Kirti Pandita, Anamika Sharma, Piyush Malaviya

{"title":"Impact of Varied Distillery Wastewaters on Yield Attributes, Soil Properties, and Heavy Metal Accumulation in Pea (Pisum sativum L. var. Rachna)","authors":"Kirti Pandita, Anamika Sharma, Piyush Malaviya","doi":"10.1007/s11270-025-07832-3","DOIUrl":"10.1007/s11270-025-07832-3","url":null,"abstract":"<div><p>The study evaluates the suitability of untreated distillery wastewater, and wastewater obtained after primary treatment and secondary treatment stages on key pod characteristics and yield attributes of <i>Pisum sativum</i> L. var. Rachna. Four concentrations of the three wastewater types viz., 25%, 50%, 75%, and 100% were used for the irrigation of <i>P</i>. <i>sativum</i> L. at regular intervals upto 120 days and various yield parameters along with iron and zinc dynamics in various plant parts were examined. The study’s findings showed that pod characteristics such as pods per plant (6.7), pod length (6.17 cm), total weight of pod (1.57 g), number of seeds per plant (27), and yield attributes, e.g., economic yield (7.12 g), stover yield (2.70 g), harvest index (83.61%), and seed output (31.26) were maximum at 50% concentration of secondary treated wastewater (ST<sub>50</sub>). The minimum value of pods per plant (3.6 cm), pod length (4 cm), total weight of pod (0.8 g), number of seeds per plant (14.6), economic yield (2.75 g), stover yield (0.54 g), harvest index (67.824%), and seed output (11.0) were observed at 100% concentration of untreated wastewater (UT<sub>100</sub>). Maximum accumulation of iron and zinc in various parts of the plant was observed at UT<sub>100</sub>, while minimum at 25% concentration of secondary treated wastewater (ST<sub>25</sub>) besides the control (tap water). Similar trends were observed for the enrichment factor, translocation factor, bioaccumulation factor, and mobility ratio.</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 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553946","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

Efficient Degradation of Organic Pollutants by Activation of Sodium Percarbonate with CuFeS2 Catalytic Membrane

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-05 DOI: 10.1007/s11270-025-07847-w

Yawei Shi, Yumei Xing, Qian Chang, Ya Sun, Guanghui Ding

{"title":"Efficient Degradation of Organic Pollutants by Activation of Sodium Percarbonate with CuFeS2 Catalytic Membrane","authors":"Yawei Shi, Yumei Xing, Qian Chang, Ya Sun, Guanghui Ding","doi":"10.1007/s11270-025-07847-w","DOIUrl":"10.1007/s11270-025-07847-w","url":null,"abstract":"<div><p>By constructing catalytic membranes, the tedious post-treatment catalyst separation during the utilization of powdered catalysts can be avoided. In this work, a copper ferrous disulfide catalytic membrane (CuFeS<sub>2</sub>-M) prepared by in-situ loading CuFeS<sub>2</sub> on a ceramic tubular membrane was employed to activate sodium percarbonate (SPC) towards the degradation of organic dye pollutants. Under the optimum conditions (SPC dosage of 8.0 mM and flow rate of 1.0 mL/min), the removal efficiency of 10 mg/L acid orange 7 (AO7) achieved 97.93%, and several other organic dyes were also efficiently removed by 75.23–95.96%. The coexisting inorganic anions and humic acid showed little detrimental effect on the removal of AO7. Reusability tests showed that CuFeS<sub>2</sub>-M could effectively catalyze the degradation of AO7, removing around 7 mg of AO7 during the operation time of 12 h from both deionized water and synthetic wastewater. Furthermore, the degradation mechanism analysis revealed that CO<sub>3</sub><sup>•−</sup> was the main reactive oxidative species. Finally, the degradation pathway of AO7 was investigated, and the environmental toxicity effects of the degradation products were also predicted. Therefore, the CuFeS<sub>2</sub>-M/SPC system exhibited prospective application for the oxidative removal of AO7 and other organic dyes from water.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553673","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

Assessing the Contaminat Plume of a Coastal Cemitery in Sandy Soils

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-05 DOI: 10.1007/s11270-025-07828-z

Gabriel D’ávila Fernandes, Willian Fernando de Borba, Pedro Daniel da Cunha Kemerich, Éricklis Edson Boito de Souza, Filipi Godinho Veiga, Lenon Mello Ilha, Daniel Gustavo Allasia Piccilli

{"title":"Assessing the Contaminat Plume of a Coastal Cemitery in Sandy Soils","authors":"Gabriel D’ávila Fernandes, Willian Fernando de Borba, Pedro Daniel da Cunha Kemerich, Éricklis Edson Boito de Souza, Filipi Godinho Veiga, Lenon Mello Ilha, Daniel Gustavo Allasia Piccilli","doi":"10.1007/s11270-025-07828-z","DOIUrl":"10.1007/s11270-025-07828-z","url":null,"abstract":"<div><p>Precise delineation of contaminant plume distribution is essential for effective remediation of contaminated areas in and around unmonitored and not planned cemeteries. In these areas, the necrochorume is the primary source of contamination that reaches groundwater, putting the environment and the population residing around at risk. This contamination is bigger in sandy soils, as, in general, sandy soils are propitious to leachates migration in depth, promoting subsoil and groundwater contamination. Therefore, the present work identified contamination zones in an area occupied by a cemetery located in soils with high sand content, high permeability coefficient, and saturated hydraulic conductivity close to the city of Tramandaí, in the southernmost Brazilian state of Rio Grande do Sul. The results identified concentrations of organic matter and Biochemical Oxygen Demand above the maximum allowed values, clearly pointing to contamination of the samples collected. By using geophysical technique, the bidimensional profiles of apparent resistivity were obtained permitting the assessment and identification of the contaminant plumes. The results point to the necessity to improve burial practices below ground level, especially in areas where the natural characteristics favor the contamination of underground springs. In view of this, the importance of monitoring in these areas stands out as they can alter the quality of the environment and become a public health problem for the local and regional community.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554061","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

Adsorptive Performance of High Surface Area Date Palm Bunch Activated Carbon Towards Methyl Violet and Fuchsin Basic Dyes Removal: Thermochemical Activation And Statistical Optimization

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-05 DOI: 10.1007/s11270-025-07834-1

Muna Sarhan Sando, Ahlam M. Farhan, Ahmad Hapiz, Elmira Kashi, Salis A. Musa, Ali H. Jawad

{"title":"Adsorptive Performance of High Surface Area Date Palm Bunch Activated Carbon Towards Methyl Violet and Fuchsin Basic Dyes Removal: Thermochemical Activation And Statistical Optimization","authors":"Muna Sarhan Sando, Ahlam M. Farhan, Ahmad Hapiz, Elmira Kashi, Salis A. Musa, Ali H. Jawad","doi":"10.1007/s11270-025-07834-1","DOIUrl":"10.1007/s11270-025-07834-1","url":null,"abstract":"<div><p>Herein, date palm (<i>Phoenix dactylifera</i>) bunch (DPB) waste was transformed into activated carbon (DPAC) adsorbent by using microwave-induced ZnCl<sub>2</sub> activation for 15 min at a power of 600 W. Several analytical methods were used to explain the physicochemical parameters of DPBAC including XRD, pH<sub>pzc</sub>, BET, SEM–EDX, and FTIR. Afterwards, the adsorptive performance of DPBAC was thoroughly investigated for the removal of two structurally different organic dyes namely methyl violet (MV) and fuchsin basic (FB). The key adsorption parameters, including the dose of DPBAC (<b>A</b>: 0.02–0.06 g), the solution pH (<b>B</b>: 4–10), and the contact time (<b>C</b>: 2–20 min) were statistically optimized using the Box-Behnken design with response surface methodology (RSM-BBD). The Freundlich isotherm model exhibits the best fit for explaining the isotherm data for both the MV and FB dyes, whereas the pseudo-second-order model shows an accurate description of the kinetic data. Thus, DPBAC shows maximum adsorption capacities (<i>q</i><sub><i>max</i></sub>) for319.9 mg/g (MV) and 246.9 mg/g (FB) respectively. The possible DPBAC surfacec interaction with MV and FB dye molecules can be assigned to various pathways including pore filling, electrostatic attraction, π-π stacking, and H-bonding. The finding of this study indicates that date palm bunch can be effectively converted into large surface area activated carbon with the potential application for removal of cationic dyes from wastewater.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554084","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

Target Fishing and Molecular Docking for Phenanthrene–pyrene Co-degradation of the Niche Effect of Polycyclic Aromatic Hydrocarbons in Reclaimed Water

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-04 DOI: 10.1007/s11270-025-07802-9

Caiyun Sun, Chunlei Xu, Yu Xia, Mengyuan An, Dazhi Sun, Lili Ma, Shixu Zhang, Yue Ma, Yuhan Zhou, Zihan Hao, Liang Xu

{"title":"Target Fishing and Molecular Docking for Phenanthrene–pyrene Co-degradation of the Niche Effect of Polycyclic Aromatic Hydrocarbons in Reclaimed Water","authors":"Caiyun Sun, Chunlei Xu, Yu Xia, Mengyuan An, Dazhi Sun, Lili Ma, Shixu Zhang, Yue Ma, Yuhan Zhou, Zihan Hao, Liang Xu","doi":"10.1007/s11270-025-07802-9","DOIUrl":"10.1007/s11270-025-07802-9","url":null,"abstract":"<div><p>PAHs pollution is a widespread pollution in river basins and wetland water bodies. A Northeast China chemical industry zone was studied, focusing on reclaimed water and sludge from sewage treatment plants. The pollution levels of 16 polycyclic aromatic hydrocarbons (PAHs) were monitored across three water periods. A model comparing pollution levels with sludge and recycled water aroma indices was established and validated. The model revealed interaction relationships among the 16 PAH pollutants. Analysis of bacterial communities identified the mechanism for combined phenanthrene and pyrene degradation, along with nine key enzymes involved. Population responses to 16 PAH pollution stress were explored, highlighting metabolic differences and functional relationships within eukaryotic and prokaryotic microbial communities. Molecular dynamics simulations identified a key enzyme, uncovering pi–pi T-shaped and pi–alkyl forces in the interaction between pyrene dioxygenase and pyrene.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533003","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

Sustainable Atrazine Removal from Real Water Matrices Using Solar-Powered Electrooxidation

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-04 DOI: 10.1007/s11270-025-07822-5

Bishwatma Biswas, Sudha Goel

{"title":"Sustainable Atrazine Removal from Real Water Matrices Using Solar-Powered Electrooxidation","authors":"Bishwatma Biswas, Sudha Goel","doi":"10.1007/s11270-025-07822-5","DOIUrl":"10.1007/s11270-025-07822-5","url":null,"abstract":"<div><p>The removal of pesticides from water sources is critically important for safe and clean drinking water. We investigated atrazine (ATZ) removal from various natural water sources using electrooxidation (EO) to cater to the need for safe drinking water. Under optimum operating conditions, 99% ATZ and ~ 70% TOC removal was achieved in 120 min of electrolysis time. Radical scavenging study and Electron Spin Paramagnetic Resonance (EPR) test showed that OH radicals and singlet oxygen were primarily responsible for the ATZ removal. ATZ removal was studied using synthetic water, filtered water, and river water, and the highest removal efficiencies observed were 98.30 ± 1.02%, 84.57 ± 1.18%, and 72.51 ± 1.34%, respectively. The phytotoxicity of EO-treated water was assessed using <i>Vigna radiata</i> seeds. The seed germination percentages observed at 0, 30, 90, and 120 min of EO treatment were 30, 50, 70, and 90%, respectively, compared to 100% obtained in the control (i.e., water without ATZ). Using solar energy as a power source instead of DC power reduced the total cost of the EO process by 12.78%. The EO process can effectively treat contaminated water, aiming to improve water quality and contributing to achieve sustainable development goals.</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 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533145","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

Comprehensive Study of Nickel Adsorption from Tannery Effluent Using Rumex Abyssinicus-Based Activated Carbon: Optimization, Isotherm, Kinetic, and Economic Perspectives for Egypt

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-04 DOI: 10.1007/s11270-025-07850-1

Leonardo Vitali, Ahmed Abdelnour, Amr A. Abdullah, Abo-alhassan N. Hassan, Moatasem Kamel

{"title":"Comprehensive Study of Nickel Adsorption from Tannery Effluent Using Rumex Abyssinicus-Based Activated Carbon: Optimization, Isotherm, Kinetic, and Economic Perspectives for Egypt","authors":"Leonardo Vitali, Ahmed Abdelnour, Amr A. Abdullah, Abo-alhassan N. Hassan, Moatasem Kamel","doi":"10.1007/s11270-025-07850-1","DOIUrl":"10.1007/s11270-025-07850-1","url":null,"abstract":"<div><p>The widespread discharge of nickel-contaminated wastewater into aquatic environments Presents a major threat to both human well-being and the environment. To address this issue, a sustainable and efficient adsorbent, Rumex abyssinicus-based activated carbon (RAAC), was developed for nickel removal. RAAC was synthesized by chemically activating Rumex abyssinicus with phosphoric acid and pyrolyzing it at 500°C. Characterization revealed that RAAC possesses a highly porous structure, making it highly effective for adsorption. Using factorial analysis methods, the adsorption process was optimized by investigating key parameters: pH, interaction duration, starting nickel levels, and the amount of adsorbent used. Nickel removal efficiency reached 99.2% under optimal conditions: a pH of 9, a 40-min interaction period, an initial nickel level of 40 mg/L, and an adsorbent amount of 0.2 g/100 mL. The Langmuir isotherm provided the best fit for the experimental data, suggesting monolayer adsorption with a maximum adsorption capacity of 101.33 mg/g. The Dubinin-Radushkevich (D-R) isotherm further confirmed the adsorption behavior, yielding a maximum capacity of 76.07 mg/g and an adsorption energy of 107.40 kJ/mol, indicating a chemisorption mechanism. Kinetic analysis demonstrated that the adsorption process adhered to the pseudo-second-order model, further supporting the dominance of the chemisorption mechanism. The production cost of RAAC was calculated to be $3.55/kg. This study demonstrates that RAAC is a highly efficient and sustainable material for nickel removal.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533144","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

Impact of the Aged Polyvinyl Chloride Microplastics on the Adsorption Behavior of Tildipirosin and Environmental Risk Assessment

IF 3.8 4区环境科学与生态学

Water, Air, & Soil Pollution Pub Date : 2025-03-03 DOI: 10.1007/s11270-025-07827-0

Zihan Liu, Ruidong Tao, Hao Li, Mengjie Qu, Chun Hu, Yunjun Mei

{"title":"Impact of the Aged Polyvinyl Chloride Microplastics on the Adsorption Behavior of Tildipirosin and Environmental Risk Assessment","authors":"Zihan Liu, Ruidong Tao, Hao Li, Mengjie Qu, Chun Hu, Yunjun Mei","doi":"10.1007/s11270-025-07827-0","DOIUrl":"10.1007/s11270-025-07827-0","url":null,"abstract":"<div><p>Microplastics (MPs) carry and spread environmental pollutants far and wide. The surface structure of MPs changes when MPs are exposed to light, and which influences the adhesion of MPs to pollutants. In this study, ultraviolet (UV) irradiation (1000 W mercury lamp, 80W/cm<sup>2</sup>) was utilized to simulate the aging of PVC MPs in natural environments. The adsorption and desorption behaviors of PVC MPs on tildipirosin were investigated. Furthermore, <i>Escherichia coli</i> was used for antibiotic stress experiments. The results revealed that aged PVC MPs exhibited a new oxygen-containing absorption peak at 1736 cm<sup>−1</sup>, attributing to the stretching of a C = O. Notably, tildipirosin adsorption by the pristine PVC MPs conformed to the pseudo-first-order kinetic model (R<sup>2</sup> = 0.975), while the aged PVC MPs followed the pseudo-second-order kinetic model. The adsorption process followed the Langmuir thermodynamic equation. Furthermore, the desorption rates of the pristine, 6-day-aged, and 12-day-aged PVC MPs were determined to be 24.2%, 24.3%, and 30.7%, respectively. Thus, the data indicated that tildipirosin was more easily desorbed from the aged PVC MPs. pH studies showed that electrostatic forces significantly impacted tildipirosin adsorption. The antibiotics stress experiments demonstrated that <i>Escherichia coli</i> K12 could tolerate a higher concentration (40 mg/L) of tildipirosin undergoing the domestication with low concentration (12.8 mg/L tildipirosin) sequential stress. The findings of this study are expected to contribute to the understanding of the synergistic behavior of MPs and antibiotics in the environment and the ecological risks involved.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529991","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