环境•农林最新文献

{"title":"Treatment of contaminated river water by batch electrocoagulation system using aluminium and iron electrodes: Performance of process and statistical analysis","authors":"Nouara Boudjema, Dhirar Ben Salem, Elleuch Lobna, Ouakouak Abdelkader, Nabil Mameri","doi":"10.1007/s11270-024-07495-6","DOIUrl":"https://doi.org/10.1007/s11270-024-07495-6","url":null,"abstract":"<p>This study examines the reduction efficiency of chemical pollution of freshwater by electrocoagulation (EC) process using aluminium (Al) and iron (Fe) electrodes. Several parameters affecting the EC efficiency were investigated in batch manner. Results indicate that both Al and Fe electrodes can eliminate satisfactorily the chemical pollutants of water. The Fe/Fe pair electrode showed an excellent efficiency in reducing turbidity (≈ 99%) within 30 min of time and at 3.0 A intensity. The COD value increased from 62 to 65% with current intensity from 0.3 to 1.0, and from 70 to 98% following the increase in intensity from 2.0 to 3.0A by using the Al electrode. The removal of COD reached 86% with Fe electrode (for 10 min) while it was 99% with Al electrode (after 45 min) using Al electrode (at 2.5 intensity). It was also found that the <i>P</i> value is greater than 0.05 for COD and less than 0.05 for TSS with both electrodes (Al, Fe). The finding also confirmed that the significant difference exists in the case of TSS reduction and it does not exist in the case of COD. Overall, the study underscores the performance of electrocoagulation using both Al and Fe electrodes for removing chemical pollutants in freshwater, highlighting its potential as a sustainable and adaptable solution for their application in water treatment units.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200328","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":"Microplastic Concentrations in Sediments and Waters Do Not Decrease in Two Rivers Flowing Through the Kruger National Park, South Africa","authors":"Purvance Shikwambana, Llewellyn C. Foxcroft, Jonathan C. Taylor, Hindrik Bouwman","doi":"10.1007/s11270-024-07499-2","DOIUrl":"https://doi.org/10.1007/s11270-024-07499-2","url":null,"abstract":"<p>Plastics are manufactured for various purposes but result in microplastic pollution in aquatic ecosystems. Riverine microplastic occurrence, spatial distribution, and impact have been globally documented but not well understood in Africa. We quantified 36 984 microplastics in riverbed sediment and river water along the Olifants and Sabie rivers, Kruger National Park (KNP), South Africa. These rivers have independent catchments. The microplastic profiles (size, polymer, morphotype, and colour) differed significantly between rivers. Riverbed sediment microplastic (mostly beads) concentrations ranged between 2022 to 9971 n/kg dm, and 2237 to 27 259 n/kg dm, for the Olifants and Sabie rivers respectively. Microplastic (mostly fragments) concentrations in river water ranged between 11 to 50 n/L in the Olifants River, and 4.0 n/L to 41 n/L in the Sabie River. Polyethylene terephthalate (PET) was prevalent in sediment (39%) and water (32%). Concentrations varied along both river stretches but the expected concentration decrease downstream was not observed. This raises transboundary concerns, as all the KNP rivers cross into Mozambique and from there into the Indian Ocean. Given the pervasive plastic pollution already present, there is a need for significant upstream and in-park interventions to reduce the concentration of microplastic in rivers flowing through conservation areas.</p>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200332","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":"Synergistic effect of nano-iron phosphide and wood vinegar on soybean production and grain quality","authors":"Guikai Zhu, Yuying Tang, Yanru Ding, Weichen Zhao, Quanlong Wang, Yuanbo Li, Qibin Wang, Peng Zhang, Zhiqiang Tan, Yukui Rui","doi":"10.1039/d4en00383g","DOIUrl":"https://doi.org/10.1039/d4en00383g","url":null,"abstract":"Phosphorus fertilizer (PF) is an important nutrient for crop growth, but it can be easily immobilized in the soil by oxides of aluminum, iron, and calcium, resulting in its reduced bioavailability. In our study, we demonstrated that iron phosphide nanomaterials (FeP-NMs) effectively enhance phosphorus utilization in plants. Specifically, with the addition of wood vinegar (WV), soybeans required only 20% of the standard PF dose to achieve maximum yield. Application of 20% FeP-NMs with WV significantly increased soybean yield by 54% compared to the control group. This reduction in PF input by 80% in future agriculture not only conserves phosphate rock resources but also promotes the reuse of agricultural waste, such as WV. Furthermore, the application of FeP-NMs and WV improved the nutritional quality of soybeans, increasing flavonoid, protein, and amino acid contents in seeds by 13%, 17.5%, and 32%, respectively. These improvements can be attributed to enhanced photosynthesis (12.4%) and increased stability of the antioxidant enzyme system (reduced by 8–45%) following the application of FeP-NMs and WV. Additionally, phosphorus in FeP-NMs was more efficiently converted to soil-available and inorganic forms, thereby enhancing plants' phosphorus absorption and utilization efficiency. Our study addresses a knowledge gap concerning the potential utilization of transition metal phosphide NMs as PF in agriculture. It provides significant support for the future development of nano-agriculture, highlighting the important role of FeP-NMs in optimizing crop yield and seed quality.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":8.131,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Evaluation of Microplastic Pollution in Gills of Freshwater Fish in a Neotropical Hydrographic Basin, Brazil","authors":"Flavia Conceição de Paiva, Jéssica da Silva Oliveira, Bárbara Rani-Borges, Rômulo Augusto Ando, Welber Senteio Smith","doi":"10.1007/s11270-024-07492-9","DOIUrl":"https://doi.org/10.1007/s11270-024-07492-9","url":null,"abstract":"<p>The disposal of plastic materials in recent years has increased exponentially due to human activity. Thus, the accumulation of these residues represents a major concern due to the impact that has been observed, mainly in freshwater aquatic environments and their biota. This study aimed to analyze the presence of microplastics in the gills of fish from the Sorocaba River basin, relating the natural history of the species and the rivers where they were collected. 98 gill samples from eight species sampled at 9 different points of the 4 main Rivers of the basin were analyzed. A total of 385 particles were found, the majority being fibers (74%), predominantly black (63%) and sizes ranging from 2 to 5 mm. The presence of microplastics was verified in all individuals studied, as they are highly susceptible to exposure and retention of plastic microparticles. The highest occurrence of microparticles in fish occurred in the Tatuí River, being verified in the Principal Component Analysis (PCA), considered one of the most disturbed Rivers in the evaluated basin. The particles were identified as polyethylene, polyester, polymethyl methacrylate and polyethylene terephthalate. The present study showed that the gills constitute an important microplastic transfer route for freshwater fish species, and the ecological traits of the species may explain differences in contamination. Considering space–time sampling and different species that make up the fish community is vitally important to understand the scale of microplastic contamination and, subsequently, take effective mitigation measures.</p>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200334","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":"Carbon farming diffusion in Australia","authors":"","doi":"10.1016/j.gloenvcha.2024.102921","DOIUrl":"10.1016/j.gloenvcha.2024.102921","url":null,"abstract":"<div><p>Carbon farming is a set of land management practices that abate carbon emissions through carbon sequestration and emissions avoidance. The Australian Carbon Credit Unit scheme enables landholders to receive carbon credits for implementing carbon farming projects that use approved methods to reduce emissions relative to baseline practice. The most widely adopted methodology under this scheme is human induced regeneration, whereby a landholder implements land management changes to enable a forest to regrow. Here, we model the spatial diffusion of human induced regeneration projects in Australia between 2014 and 2022 using spatiotemporal data on project registrations and spatial data on the methodology’s economic feasibility. We find that spatial proximity to existing projects is a strong predictor of landholder adoption, conditional on the methodology’s average economic feasibility in the region. We also find that a region’s average economic feasibility is a relatively weak predictor of adoption, after accounting for landholder proximity to existing projects. The spatial dependency of the diffusion process has led to high levels of spatial concentration in Australia’s carbon supply, raising concerns regarding land use efficiency and carbon supply risk. We explore how to design carbon farming schemes to support wider uptake and produce better outcomes.</p></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":null,"pages":null},"PeriodicalIF":8.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0959378024001250/pdfft?md5=f02e47c2990428693c7bc95e52127921&pid=1-s2.0-S0959378024001250-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142172022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"New Niobate Based Catalyst for Organic Dye Oxidation: A Mechanistic Approach","authors":"Carlos Giovani O. Bruziquesi, José Balena G. Filho, Herman S. Mansur, Poliane Chagas, Alexandra A. P. Mansur, Luiz Carlos A. Oliveira, Adilson C. Silva","doi":"10.1007/s11270-024-07480-z","DOIUrl":"https://doi.org/10.1007/s11270-024-07480-z","url":null,"abstract":"<p>In this work, we aimed to demonstrate new polyoxoniobate containing surface peroxo groups obtained after the treatment of niobic acid with hydrogen peroxide and lyophilization process. Raman and diffuse reflectance measurements confirm the presence of peroxo groups in the new polyoxometalate. Isotherms from N₂ adsorption/desorption have evidenced a drastic change in specific surface area after treatment with hydrogen peroxide, from 195 m².g⁻¹ for Nb1 to 4 m².g⁻¹ for Nb3. Catalytic studies were performed for Congo red (CR) oxidation using H₂O₂ as oxidizing promoter. The results showed a new material with larger specific area, smaller particle size and an increase in peroxo groups, thus leading to higher catalytic response of discoloration of the Congo red (about 70% for Nb3 and close to 20% for the other catalysts) as compared with the raw material, without previous treatment.</p>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200327","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":"Stimulation of Wheat Straw Biochar on the Roxarsone Biodegradation by Shewanella Oneidensis MR-1","authors":"Li Wengang, Zhang Xiaohui, Chen Cuihong, Chen Fang, Ni Zhenyang, Cui Yuxiao","doi":"10.1007/s11270-024-07487-6","DOIUrl":"https://doi.org/10.1007/s11270-024-07487-6","url":null,"abstract":"<p>Biochar-mediated microbial degradation is receiving increased attention for remediating organic pollutants. However, the mechanism of biochar-facilitated bioremediation is poorly understood. This study demonstrated that wheat straw biochar could significantly enhance roxarsone biodegradation by <i>Shewanella oneidensis</i> MR-1. The average rate constants were calculated to be 0.0410, 0.0477, 0.0575, and 0.0441 h⁻¹ for treatments with 0.05, 0.1, 0.5, and 1 g/L biochar, respectively, which were all higher than that in treatment with only MR-1 (0.0363 h⁻¹). The impact of biochar dosage on roxarsone degradation followed as 0.5 g/L &gt; 0.1 g/L &gt; 1.0 g/L &gt; 0.05 g/L biochar. The high specific surface area of biochar provided more opportunity for contact with MR-1, which was certified by the scanning electron microscope images. The extracellular polymeric substances were affected by the addition of biochar. The concentrations of protein and polysaccharide were lower with various concentrations of biochar to the system with only MR-1. The cell proliferation was promoted by the addition of biochar and the optical density value of MR-1 followed 0.5 g/L biochar group &gt; 0.1 g/L biochar group &gt; 1 g/L biochar group &gt; 0.05 g/L biochar group &gt; only MR-1. These results improved our understanding of biochar-mediated biodegradation and showed that an optimized dosage of wheat straw-derived biochar could be a microbial growth activator, accelerating the roxarsone conversion rate.</p>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200331","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":"A new scope for Environmental Science: Nano in its tenth year","authors":"Peter J. Vikesland","doi":"10.1039/d4en90039a","DOIUrl":"https://doi.org/10.1039/d4en90039a","url":null,"abstract":"A graphical abstract is available for this content","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":8.131,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Economic Growth's Impact on Water Use and Pollution in Mexican Regions","authors":"Triga Alicia Dávila-Sandoval, Rodrigo Navarro-Guerrero, Edgar Demetrio Tovar-García","doi":"10.1007/s11270-024-07489-4","DOIUrl":"https://doi.org/10.1007/s11270-024-07489-4","url":null,"abstract":"<p>Following the Environmental Kuznets Curve hypothesis, an inverted U-shaped relationship is expected between economic growth and water utilization and pollution. As economic growth increases, so do water use and pollution. However, above a certain growth level (turning point), further growth has beneficial impacts, using less water and improving its quality. Recently, N-shaped relationships seem to prevail over inverted U curves — there is a rebound effect. However, the empirical evidence shows conflicting results, partly explained by the mobility and aggregation of economic activities across a large space (the whole country). Accordingly, we build a unique dataset with measures of water use (the ratio of water withdrawals to renewable water resources) and pollution (biological oxygen demand) to estimate water utilization and pollution equations using panel data from the 32 Mexican states (2005–2020). The article's contributions are threefold. First, it introduces methodological innovations to address endogeneity using advanced panel data econometric techniques. Second, it provides new insights into the economic growth-water relationship, identifying N-shaped patterns for water use and inverted N-shaped patterns for water pollution. Third, it discusses policy implications and future research directions in environmental management and sustainable development. The findings suggest improvements for inter-regional water trade and indicate that economic growth may lead to sustainable water pollution patterns, highlighting the potential for regulatory interventions to mitigate pollution and promote efficient water use.</p>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200336","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":"Microplastics in Different Environmental Matrices: Co-Contaminants and its Monitoring Techniques","authors":"Abhishek Kumar, Kirpa Ram","doi":"10.1007/s11270-024-07469-8","DOIUrl":"https://doi.org/10.1007/s11270-024-07469-8","url":null,"abstract":"<p>Microplastics (MPs) are tiny plastic particles ranging from 1 to 5000 μm in size and are of particular concern nowadays because of their ecological risk &amp; health concerns. MPs are prevalent environmental contaminants and have been reported in various ecosystems such as soil, air, water, and road dust. However, a thorough understanding of their distribution across various environmental matrices remains elusive. Therefore, this review aims to fill this knowledge gap by examining the abundance of MPs and different techniques utilized for their identification and characterization including sampling, extraction, identification, characterization, and quantification methods. MPs possess a large surface area and exhibit hydrophobic properties, providing a substrate for environmental pollutants such as Polyaromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs). The primary mechanisms through which pollutants attached to MPs are hydrophobic interactions, electrostatic attraction, hydrogen bonding, halogen bonding, and π-π interactions. Therefore, a better understanding of these interactions is crucial for determining the fate and transport of MPs and co-contaminants in the environment. Researchers commonly deploy techniques such as stereomicroscopy and spectroscopy for the characterization and quantification of MPs. However, size and chemical properties of MPs pose a challenge in their quantification, thereby necessitating the development of standardized analytical methods. Use of bio-indicators for MPs biomonitoring has gained popularity in recent years as an affordable option over conventional techniques however research in this area is limited. With this intention, the present review is designed to provide information about the status of the field and advance our knowledge of MPs in various environmental matrices.</p>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":2.52,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200330","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}