{"title":"Removal of heavy metals using lichen-derived activated carbons: adsorption studies, machine learning, and response surface methodology approaches","authors":"H. Koyuncu, A. R. Kul, Ö. Akyavaşoğlu","doi":"10.1007/s13762-024-06001-z","DOIUrl":"https://doi.org/10.1007/s13762-024-06001-z","url":null,"abstract":"<p>Biomass-based activated carbons are promising as they are effective and low-cost for wastewater remediation. In this study, the removal of lead, copper, and zinc was investigated using activated carbons obtained from two different lichens. The performance of the 5th-order Response Surface methodology (RSM), Machine Learning (ML), and Artificial Neural Network (ANN) model based on Face-Centered Central Composite Design (FCCCD) was evaluated considering initial concentration, temperature, and time effects. The effectiveness of using ANN for accurate prediction in lead and copper removal and the superior performance of ML-based 5th-order RSM for zinc removal were demonstrated. Among the Langmuir, Freundlich, and Temkin isotherm models, the Freundlich model best described the adsorption processes, and the Langmuir maximum adsorption capacities were found to be 105.26 mg/g (Pb/AC-1), 59.52 mg/g (Cu/AC-1), and 53.19 mg/g (Cu/AC-2). Additionally, the pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were examined, and it was found that the adsorption processes followed the pseudo-second-order kinetics and intra-particle diffusion played a significant role. The activation energies and ΔH<sup>0</sup> values less than 40 kJ/mol and ΔG<sup>0</sup> values below − 20 kJ/mol showed that the metals were adsorbed by physical mechanisms. The novelty of this study is that the 5th-order RSM model is applied to adsorption processes for the first time, and a multi-faceted approach is used to analyse adsorption processes, including machine learning and ANN, isotherm modeling, thermodynamic evaluation, kinetics analysis, and activation energy calculations.</p>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"154 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205594","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}
D. Karimi, M. Kabolizadeh, K. Rangzan, Z. Zaheri Abdehvand, F. Balouei
{"title":"New methodology for improved bathymetry of coastal zones based on spaceborne spectroscopy","authors":"D. Karimi, M. Kabolizadeh, K. Rangzan, Z. Zaheri Abdehvand, F. Balouei","doi":"10.1007/s13762-024-06028-2","DOIUrl":"10.1007/s13762-024-06028-2","url":null,"abstract":"<div><p>In-situ water depth measurement is a time-consuming and expensive process for large-scale and frequent monitoring. This underscores the need for alternative methods, such as those based on satellite imagery, which can offer a more efficient and cost-effective solution. This research explores the use of PRISMA hyperspectral images for bathymetry in Nayband Bay, South Iran. The proposed method, SSIP_PSO, includes image pan-sharpening, spectral and spatial information preservation, Particle Swarm Optimization for band ratio selection, and enhanced geometric correction. Among fusion methods tested, the Gram-Schmidt Transform proved most effective for pan-sharpening. The optimal band ratio, b4/b19, improved bathymetry accuracy, reducing root mean square error from 2.291 to 1.716. SSIP_PSO outperformed traditional methods and demonstrated the importance of preserving spatial information in bathymetry.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 5","pages":"3359 - 3378"},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimization of chlorine consumption in water distribution networks by using the new ant colony optimization (ACOR) algorithm","authors":"M. H. Ahmadi, B. Mansoori, R. Aghamajidi","doi":"10.1007/s13762-024-06008-6","DOIUrl":"10.1007/s13762-024-06008-6","url":null,"abstract":"<div><p>Chlorination by maintaining the injected chlorine concentration in the range between the minimum and maximum is among the most inexpensive and common disinfection methods in water distribution networks. The minimum concentration of residual chlorine must be observed to control the microbial quality of water. Besides, the maximum chlorine concentration must be observed to control problems related to water smell and taste and to prevent the production of toxic byproducts. This research has developed a model by combining the EPANET model and the ACO<sub>R</sub> optimization algorithm to optimize the chlorine injection program during the operation period. According to the results, the ACOR algorithm could be used to derive a suitable program for chlorine injection in the water distribution network such that the permissible constraints of chlorine are observed in the consumption nodes of the network and the consumption of chlorine is reduced to the least level in the network. The developed model was applied to determine an optimal chlorine injection program in a classical example (the Branford network), which was also of interest to some previous researchers. Using the optimal injection program obtained by the model, the chlorine concentration was set at an acceptable network level between the permissible range of 0.2–0.8 g/l. This output was more favorable than the response of other methods in terms of the total residual chlorine concentration, which was 5.8% and 4.7% lower in this method than the methods based on PSO and genetic algorithms, respectively. Moreover, a better convergence speed was obtained in this algorithm, and the number of calculation times of the objective function was 49.5 and 64.4 less than the methods based on PSO and genetic algorithms, respectively. Therefore, the ACO<sub>R</sub> algorithm can be used to derive the chlorine injection program to both comply with the permissible constraints of chlorine and reduce chlorine consumption to the minimum level.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 5","pages":"3199 - 3212"},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment of seven different global climate models for historical temperature and precipitation in Hatay, Türkiye","authors":"M. Ozbuldu, A. Irvem","doi":"10.1007/s13762-024-06033-5","DOIUrl":"https://doi.org/10.1007/s13762-024-06033-5","url":null,"abstract":"<p>Global climate models are important tools for estimating the possible future impacts of climate change and developing necessary adaptation strategies. This study assessed the suitability of global climate models for local climate projections in Hatay, Türkiye. Temperature and precipitation data from different Coupled Model Intercomparison Project Phase 6 climate models were compared with ground-based observations. For stations lacking historical data, multilayer perceptron artificial neural networks were used to generate data. These networks were trained with data from neighboring stations from 1980 to 2014. The most suitable global climate model was determined using a multi-criteria decision-making approach. As a result of the study, it was determined that the multilayer perceptron models effectively generated long-term temperature data with a normalized root mean square error of less than 0.50. Precipitation estimates, while less accurate, achieved reasonable accuracy with a normalized root mean square error of less than 0.70. The evaluation of global climate models revealed a tendency to underestimate minimum temperatures and overestimate maximum temperatures and precipitation. Specifically, the EC-EARTH3, CMCC-ESM2, and MPI-ESM1-2-HR models excelled in maximum temperature estimations; the CMCC-ESM2, GFDL-CM4, and TAIESM1 models were superior for minimum temperatures; and the EC-EARTH3, GFDL-CM4, and MPI-ESM1-2-HR models performed best for precipitation. The findings of this study will provide a framework for the assessment and selection of appropriate climate models for local regions and will help to develop targeted adaptation strategies.</p>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"56 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Insight of heavy metal contamination of soil in high background area: field investigation and laboratory test","authors":"N. Xie, C. Kang, B. Z. Feng, B. Zhang","doi":"10.1007/s13762-024-06024-6","DOIUrl":"10.1007/s13762-024-06024-6","url":null,"abstract":"<div><p>This paper utilizes field sampling and laboratory testing to identify potential sources of heavy metals, including rock, dust, rainfall, surface water, and groundwater, employing Pearson Correlation Coefficient—Principal Component—Sources Factors Analysis. A total of 33 surface and 22 profile soil samples were collected to investigate the migration characteristics and spatial distribution of heavy metals in the study area. Additionally, the paper discusses the comparison of soil heavy metal concentrations between sunny and shady slopes. The findings reveal that soil heavy metals in the study area primarily originate from weathering and downward migration deposition of parent rock, indicative of a geological high background area. Moreover, this has led to arsenic contamination in the soil, with an excess rate of 74.5%. It was observed that heavy metals tend to accumulate more on shady slopes than sunny slopes, with mercury and arsenic showing the most significant differences at 69.70% and 49.33% higher levels, respectively. The comprehensive impact index of agricultural soil was calculated at 53.25, indicating a sub-pollution level. Additionally, the study notes that with the increase in crop enrichment coefficient, the variation values of soil heavy metal concentrations decrease, with a correlation coefficient of 0.6077 between the two variables.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 5","pages":"2833 - 2848"},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205597","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}
A. Pundir, M. S. Thakur, B. Goel, Radha, A. Kumar, S. Prakash, M. Thakur, M. Kumar
{"title":"Innovations in tannery wastewater management: a review of zero liquid discharge technology","authors":"A. Pundir, M. S. Thakur, B. Goel, Radha, A. Kumar, S. Prakash, M. Thakur, M. Kumar","doi":"10.1007/s13762-024-05986-x","DOIUrl":"https://doi.org/10.1007/s13762-024-05986-x","url":null,"abstract":"<p>The tanning industry, a significant contributor to global leather production, faces critical challenges in wastewater management due to the hazardous pollutants generated during processing. Zero liquid discharge (ZLD) systems present a sustainable solution by efficiently treating and reusing wastewater while minimizing environmental impact. This study aims to explore the successful implementation of ZLD in the tannery industry, considering its economic and environmental benefits. Through a comprehensive review of literature and case studies, this research assesses the factors contributing to ZLD success, potential barriers to widespread adoption, and future advancements in technology. Methodologies include analyzing existing ZLD implementations, evaluating cost analyses, and investigating potential advancements in ZLD technologies. Results demonstrate that while ZLD offers significant advantages in water conservation, resource recovery, and environmental protection, challenges such as high installation costs and technical complexities hinder widespread adoption. Addressing these challenges requires concerted efforts from stakeholders, including tannery owners, regulatory bodies, and technology providers. Future directions suggest the need for ongoing research and development to enhance ZLD efficiency and cost-effectiveness. By embracing ZLD systems, tanneries can achieve sustainable wastewater management, conserve water resources, and meet environmental standards, thereby advancing towards an environmentally conscious and socially responsible business approach.</p>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"7 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226368","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}
Prabu Rajandran, Nasratun Masngut, Nor Hasmaliana Abdul Manas, Nur Izyan Wan Azelee, Siti Fatimah Zaharah Mohd Fuzi, Mohamad Abd Hadi Bunyamin
{"title":"Fixed-bed adsorption for industrial wastewater purification: An in-depth review","authors":"Prabu Rajandran, Nasratun Masngut, Nor Hasmaliana Abdul Manas, Nur Izyan Wan Azelee, Siti Fatimah Zaharah Mohd Fuzi, Mohamad Abd Hadi Bunyamin","doi":"10.1007/s13762-024-06034-4","DOIUrl":"https://doi.org/10.1007/s13762-024-06034-4","url":null,"abstract":"<p>The increasing discharge of industrial wastewater contaminated with hazardous pollutants requires innovative and efficient treatment technologies. This review addresses the potential of fixed-bed adsorption systems for the effective removal of a wide spectrum of contaminants from industrial effluent. It explains the basic principles, characteristics and mechanisms of fixed-bed adsorption systems and examines important factors affecting their performance. Through a comparative analysis of different adsorption models, the paper provides insights into the efficiency and applicability of these models in assessing the characteristics of adsorption system using breakthrough curves. The findings advocate for policy support to integrate fixed-bed adsorption technologies into existing wastewater management systems to improve environmental protection and public health.</p>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"15 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205608","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}
K. Bavai, M. Kalahi, Z. Baghaeifar, A. Goldson-Barnaby
{"title":"Investigation of biochemical and antioxidant system responses of sugarcane CP48-103 under drought stress induced by polyethylene glycol","authors":"K. Bavai, M. Kalahi, Z. Baghaeifar, A. Goldson-Barnaby","doi":"10.1007/s13762-024-05981-2","DOIUrl":"10.1007/s13762-024-05981-2","url":null,"abstract":"<div><p>Sugarcane is an important crop globally as it is a primary source of sugar and is used in the production of a wide range of products such as food, biofuels, and renewable materials. In Iran, sugarcane is significant as it contributes to the country’s sugar production and supports its agricultural industry, providing employment and economic value to the region. In this study, the physiological changes of sugarcane plants under drought stress were investigated. After callus formation and transfer of the plants to a shoot culture medium, drought stress was applied at four levels: control, 0.4, 0.8, and 1.2 mM/L of polyethylene glycol in the MS culture medium. Changes in morphological characteristics, as well as biochemical properties including pigments, antioxidant enzyme activity, and non-enzymatic antioxidants of sugarcane plants under drought stress, were measured. Drought stress led to a decrease of about 34% in growth parameters and phenolic content increased by 1.43 times of sugarcane plants, proportional to the concentration of polyethylene glycol in the culture medium, while osmolytes and antioxidant enzymes such as catalase, superoxide dismutase, peroxidase, ascorbate peroxidase, glutathione reductase, and glutathione peroxidase, showed higher levels, indicating that one of their roles in sugarcane is responding to drought stress and neutralization of reactive oxygen species. These insights can inform the creation of drought-resistant crop varieties, supporting sustainable agriculture in regions prone to water scarcity. Moreover, they could pave the way for advancements in water conservation practices and help mitigate the impact of climate change on farming.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 5","pages":"3259 - 3270"},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of micelles-forming surfactant on performance of anaerobic digestion of synthetic municipal wastewater","authors":"Z. Akbari, T. Tavallaiee, R. Ghiassi","doi":"10.1007/s13762-024-06025-5","DOIUrl":"10.1007/s13762-024-06025-5","url":null,"abstract":"<div><p>Several papers have been published in the literature about the effect of surfactants on anaerobic digestion process and results have shown that surfactants had contradictory effect in different concentrations. To understand the reason of this contradictory effect, the surfactant behavior was studied during the anaerobic digestion process in this research. Firstly, laboratory-scale experiments were conducted using 200 cc reactors at mesophilic temperature to determine the optimum inoculum-substrate ratio and several parameters were measured such as chemical oxygen demand, total solids, volatile solids, pH, dissolved oxygen, electrical conductivity, total dissolved solids and alkalinity. Results have shown that optimum inoculum-substrate ratio was four. In the second part of this research, batch experiments were conducted with four Sodium Dodecyl Benzene Sulfonate concentrations namely 0, 100, 200, 400 under mesophilic condition lasted for 50 days. It was observed that a fundamental change in anaerobic digestion occurred at the surfactant concentration of 400 ppm in such a way that surfactant played the role of an obstacle in the anaerobic digestion. To study the effect of surfactant concentration on anaerobic digestion, electrical conductivity and turbidity of tab water and synthetic wastewater were plotted versus surfactant concentration. Results of these graphs showed that electrical conductivity of synthetic wastewater was raised sharply after critical micelle concentration unlike tab water due to the interaction between charged species in synthetic wastewater with formed micelles. In addition, at concentrations higher than 400 ppm, the number of produced micelles increased exponentially in synthetic wastewater. The inhibition of growth rate of microorganism could be attributing to the micelle-forming surfactant which induced curvature stress in cell membranes and led to disordering and then cell lysis.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 5","pages":"3299 - 3318"},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226366","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}
J. Laukkanen, H. Runtti, I. Lancellotti, T. Luukkonen, C. Leonelli, U. Lassi
{"title":"Alkali-activated materials containing mine tailings and zeolite for seepage water treatment in a closed nickel mine","authors":"J. Laukkanen, H. Runtti, I. Lancellotti, T. Luukkonen, C. Leonelli, U. Lassi","doi":"10.1007/s13762-024-06002-y","DOIUrl":"https://doi.org/10.1007/s13762-024-06002-y","url":null,"abstract":"<p>In the present study, alkali-activated materials were assessed as adsorbents for mine water treatment. The composition of alkali-activated materials, involving mixtures of metakaolin, blast-furnace slag, mine tailings, and zeolite, was optimized based on their leaching behavior and adsorption performance. The most effective adsorbent contained solely blast furnace slag as an aluminosilicate precursor and was selected for a pilot-scale study at a closed nickel mine in Finland. In the pilot, seepage water from a gangue area with an influent flow rate of 0.5 m<sup>3</sup>/d was treated using a permeable reactive barrier set-up containing 10 kg of slag-based adsorbent prepared by a granulation-alkali activation process. During a one-week experiment, the adsorbent granules were capable of effectively uptaking Ni, Fe, and Mn from the seepage water; the removal percentages of Ni, Fe, and Mn were 82.4%, 81.6%, and 82.5%, respectively. The results indicated the feasibility of blast furnace slag-based adsorbents for toxic element removal in a potentially sustainable approach.</p>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"10 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205605","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}