环境•农林最新文献

{"title":"Chemical Reactivity of Weathered Nanoplastics and Their Interactions with Heavy Metals","authors":"Yingnan Huang, Fei Dang, Yujun Wang","doi":"10.1039/d4en00801d","DOIUrl":"https://doi.org/10.1039/d4en00801d","url":null,"abstract":"There is growing concern about the threat that nanoplastics (NPs) pose to ecosystems. However, a comprehensive risk assessment of NPs is currently constrained by the paucity of knowledge on the chemical reactivity of NPs, which were previously thought to be chemically inert. This review identifies the chemical reactivity of NPs that have undergone abiotic and biotic weathering, including the formation of free radicals, the increase in the content of oxygen-containing functional groups, and the release of plastic leachates. Their interaction with legacy contaminants, such as heavy metals (HMs), is then examined, highlighting their critical role in the oxidation and reduction of HMs, through free radical-mediated redox processes and electron shuttling by carbonyl groups. This review offers new insights into the risk of NPs, where their interaction with legacy contaminants determines the long-term exposure scenario for ecosystems. The unexpectedly large pool of reactive NPs in nature will not only affect their risks but also impact the biogeochemistry of HMs and other contaminants that could react with free radicals and carbonyl groups.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":8.131,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589202","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":"Applications of HYDRUS Based CW2D Wetland Module: a Review","authors":"Rama Pal,&nbsp;Truptimayee Suna,&nbsp;N. L. Kushwaha,&nbsp;I. Rashmi,&nbsp;M. Madhu","doi":"10.1007/s11270-024-07577-5","DOIUrl":"10.1007/s11270-024-07577-5","url":null,"abstract":"<div><p>Constructed wetlands are becoming increasingly popular around the world to remove nutrients, organics, trace elements, pathogens, and other contaminants from wastewater and/or runoff water. Generally constructed wetlands can be built considering several designs connected to the flow which can be either saturated or unsaturated, vertical or horizontal, surface or subsurface and all the possible combinations. The CW2D (Constructed Wetlands 2D) multi-component reactive transport module was developed as an extension of the Hydrus-2D. CW2D was created to simulate biochemical transformation and degradation processes for organic matter, nitrogen and phosphorus in constructed wetlands with subsurface flow. The IWA Activated Sludge Models, which use monod-type expressions to describe the process rates, serve as the foundation for the mathematical structure of CW2D. All process rates and diffusion coefficients are temperature dependent. The biochemical components included in CW2D are dissolved oxygen, three fractions of organic matter (readily- and slowly-biodegradable, and inert), four nitrogen compounds (ammonium, nitrite, nitrate, and dinitrogen), inorganic phosphorus, and autotrophic and heterotrophic micro-organisms. Considering the background knowledge, the review provides recent applications of CW2D module with HYDRUS for simulation of wastewater treatment performance of constructed wetlands and suggests the possibility of addition of more features in CW2D module for more realistic simulation outcomes.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595622","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":"Degradation of Typical Nitrogen-Heterocyclic Compounds in Coal Gasification Wastewater via Catalytic Ozonation Processes","authors":"Pengkang Zhang,&nbsp;Bangguo Liu,&nbsp;Tao Zhao,&nbsp;Jiayu Yu,&nbsp;Xiaoyun Ye,&nbsp;Xiurong Chen","doi":"10.1007/s11270-024-07516-4","DOIUrl":"10.1007/s11270-024-07516-4","url":null,"abstract":"<div><p>Reverse osmosis is a critical step in the pursuit of zero discharge for coal gasification wastewater treatment; however, the high-salt concentrates generated in this process contain refractory organic compounds, such as indole, quinoline, and pyridine, which pose significant challenges for salt recovery. In this study, catalytic ozonation using a novel Cu-Co-Mn/activated carbon catalyst was introduced to efficiently degrade these persistent organic pollutants. The optimized conditions were a pH of 9.0, a catalyst dosage of 1.3 g/L, and an ozone dosage of 1.0 g/L. Our findings reveal that the catalytic effect promotes the accumulation of hydroxyl-free radicals, which provide the necessary energy for effective degradation. The removal efficiencies of indole, quinoline, and pyridine by catalytic ozonation were remarkably high at 92.31%, 90.56%, and 80.63%, respectively. Pyridine, identified as the most resistant compound, had its electronic structure calculated using density functional theory (DFT) with Gaussian 09 software, offering new insights into the underlying degradation processes. The results demonstrate that the novel catalyst significantly boosts ozonation efficiency, offering a promising approach for treating high-salt coal gasification wastewater.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595411","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":"Combating Eukaryotic and Prokaryotic Harmful Algal Blooms with Visible-Light Driven BiOBrxI1-x/MFe2O4/g-C3N4 (M = Co & Ni) Recyclable Photocatalysts","authors":"Anjitha A, Shijina Kottarathil, Ajayan KV, Sindhu Swaminathan, Irene M.C. Lo, Kishore Sridharan","doi":"10.1039/d4en00955j","DOIUrl":"https://doi.org/10.1039/d4en00955j","url":null,"abstract":"Photocatalysis offers a promising avenue for completely mutilate harmful algal blooms (HABs), a significant threat to global freshwater reserves. In this study, a series of BiOBr<small>_x</small>I<small>_1-x</small> photocatalysts were synthesized and the most optimal catalyst was integrated with pristine g-C<small>₃</small>N<small>₄</small> and pre-synthesized CoFe<small>₂</small>O<small>₄</small>/g-C<small>₃</small>N<small>₄</small> and NiFe<small>₂</small>O<small>₄</small>/g-C<small>₃</small>N<small>₄</small> to form binary and ternary composite heterojunction photocatalysts (BiOBr<small>_0.95</small>I<small>_0.05</small>/g-C<small>₃</small>N<small>₄</small> - BG, CoFe<small>₂</small>O<small>₄</small>/BiOBr<small>_0.95</small>I<small>_0.05</small>/g-C<small>₃</small>N<small>₄</small> - CBG, and NiFe<small>₂</small>O<small>₄</small>/BiOBr<small>_0.95</small>I<small>_0.05</small>/g-C<small>₃</small>N<small>₄</small> - NBG). Synthesized photocatalysts were thoroughly characterized and their performance was evaluated through the visible light driven photocatalytic degradation of both Microcystis aeruginosa (prokaryotic) and Scenedesmus acuminatus (eukaryotic) algal cells sourced directly from ponds. Exceptional photocatalytic efficiency of CBG evidenced through the variation in chlorophyll-a content, malondialdehyde, and electrolytic leakage confirmed the complete rupture of the algal cells after 3 h of light exposure. This was further reconfirmed through fluorescent microscopy analysis and interestingly, both HABs failed to re-grow even after 10 days. Enhanced performance of CBG was attributed to the boosted generation of charge carriers facilitated by its extended visible light absorption, which in-turn produced reactive oxygen species (<small>^•</small>O<small>₂</small><small>^-</small> and <small>^•</small>OH radicals) that caused irreparable oxidative damage to algal cells, while effectively suppressing the exciton pair recombination supported by its double Z-scheme heterojunction. Furthermore, magnetic recyclability feature of CBG facilitated their easy removal from treated water for avoiding secondary pollution. Design of magnetically recyclable photocatalysts for degrading both prokaryotic and eukaryotic HABs demonstrated here is anticipated to inspire the development of efficient photocatalysts and design cost-effective solutions required for treating ponds and lakes infected with HABs.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":8.131,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580705","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":"Mobility, Speciation and Bioavailability of Zn and Pb in Artificially Polluted Soils by Magnetic Biochars from Siraitia Grosvenorii Residues","authors":"Yaolan Niu,&nbsp;Wei Hu,&nbsp;Taiming Shen,&nbsp;Kun Dong","doi":"10.1007/s11270-024-07608-1","DOIUrl":"10.1007/s11270-024-07608-1","url":null,"abstract":"<div><p>The effects of magnetic biochar (SMBC) prepared from Siraitia grosvenorii residues on the mobility, speciation and bioavailability of Pb and Zn in the soil were studied. SMBC was characterized by N₂ adsorption–desorption isotherm, Scanning electron microscope, Fourier infrared spectroscopy and X-ray diffraction. Three different extractions of Pb and Zn by TCLP, CaCl₂ and PBET were used to simulate mobility, availability and bioaccessibility, respectively. SMBC was incubated with contaminated soils at rates of 0, 1, 2.5, and 5.0% by weight for 5 days and 30 days. SMBC was effective for both Zn and Pb immobilization, and the immobilization effect increased with the increase of SMBC dosage. It was observed that there was a slight rebound of TCLP-extractable Pb and CaCl₂-extractable Pb in the SMBC-treated soils after 30 days of incubation. The chemical fractions of Pb and Zn from sequential extractions were used for evaluating mobility and availability. After 30 days of incubation, the chemical species of Pb in the control distributed in the decreasing order of OX (26.5%) &gt; CB (20.99%) &gt; OM (18.52%) &gt; RS (18.02%) &gt; EX (15.95%) and RS (27.35%) &gt; OX (24.88%) &gt; EX (19.95%) &gt; OM (17.42%) &gt; CB (10.38%) for Zn in the soil. Siraitia grosvenorii residues has a broad application prospect in the remediation of heavy metal polluted soil in the future.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587830","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":"Experimental Study on DEP Degradation in Water by Double Grounded Electrode DBD Reactor","authors":"Shiyue Liu,&nbsp;Xuhong Jin,&nbsp;Siyu Zhang,&nbsp;Cong Wang,&nbsp;Xinjun Shen","doi":"10.1007/s11270-024-07600-9","DOIUrl":"10.1007/s11270-024-07600-9","url":null,"abstract":"<div><p>In recent years, due to the rapid development of industrialisation, plasticisers can be commonly detected in the aqueous environment, and diethyl phthalate (DEP), as an o-phenyl plasticiser, is an emerging pollutant in the aqueous environment, which endangers human health and damages the environment. In this study, a double grounded dielectric barrier discharge (DBD) plasma was utilised for the degradation of DEP wastewater, and a packed-bed reactor was designed so that the degradation rate of DEP was enhanced by the enhanced discharge effect. This paper compares the investigation of the packing performance of different packing materials in the DBD plasma discharge space, optimising a conventional DBD plasma, and testing the filling of different filling materials (glass spheres and glass tubes) in a DBD reactor. Response surface method was used to determine the effect of different materials between size, packing volume and through air flow rate and optimisation experiments were carried out. When glass spheres are used as filler material, the removal rate of the response output optimum can reach 96.62%; When the glass tube is used as filler material, the response output optimum value of 89.78% removal can be achieved. The degradation of DEP by various active particles within the filled-bed DBD discharge system was investigated by free radical inhibition experiments. The removal rates were 17.81%, 48.30% and 17.81% after 40 min of discharge treatment with 5 mmoL/L IPA, BQ and PS, respectively.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587831","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":"Between theory and action: Assessing the transformative character of climate change adaptation in 51 cases in the Netherlands","authors":"Dore Engbersen,&nbsp;Robbert Biesbroek,&nbsp;Catrien J.A.M. Termeer","doi":"10.1016/j.gloenvcha.2024.102948","DOIUrl":"10.1016/j.gloenvcha.2024.102948","url":null,"abstract":"<div><div>Globally, researchers and policymakers are calling for transformative climate adaptation (TCA) to fundamentally change the attributes of social, economic, and ecological systems to deal with climate risks. However, attempts to conceptualize, assess, and implement TCA are limited and often result in vague and diffuse meanings, hindering transformative action. This study synthesizes existing literature to introduce a framework consisting of six dimensions for evaluating transformative climate adaptation actions: (1) depth, (2) scope, (3) scale, (4) speed, (5) social vulnerability, and (6) ecological vulnerability. We applied this framework to 51 climate change adaptation cases in the Netherlands. Our results show that no single case scored high on all dimensions, suggesting there are trade-offs between the six dimensions. Most trade-offs exist between depth, speed, and scale; however, they sometimes extend to the interplay between social and ecological vulnerability. We identify multiple clusters of cases that display varying degrees and characteristics of transformative change. Our results strengthen the call for a multidimensional and continuous change perspective of TCA to address the gap between transformative theory and transformative actions. The framework proposed here could guide future empirical research on the drivers of TCA and help governance actors work towards building more socially and environmentally resilient futures.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":null,"pages":null},"PeriodicalIF":8.6,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593945","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":"Delivering metribuzin from biodegradable nanocarriers: Assessing herbicidal effects for soybean plant protection and weed control","authors":"Vanessa Takeshita, Felipe F. Oliveira, Alvaro Garcia, Nubia Zuverza-Mena, Carlos Tamez, Brian Cintra Cardoso, Camila Werk de Pinácio, Blaire Steven, Jacquelyn LaReau, Carlos E. Astete, Christina M Sabliov, Leonardo Fernandes Fraceto, Valdemar Luiz Tornisielo, Christian Dimkpa, Jason C. White","doi":"10.1039/d4en00784k","DOIUrl":"https://doi.org/10.1039/d4en00784k","url":null,"abstract":"Several studies have reported improved weed control and targeted delivery of herbicides by nanocarriers. However, the effects on crops and non-target organisms need to be considered. Here, we investigate the crop and soil health treated with metribuzin in conventional and biodegradable nanoformulations (poly-ε-caprolactone - PCL and lignin-PCL) (both at 480 g a.i. ha-1<small></small>). Weed control of Amaranthus retroflexus by the nanoformulations was also evaluated as a measurement of target delivery. Soybean plants did not show any differences in photosynthetic parameters and a slight oxidative stress with nanoherbicide treatment, with biomass reduction occurred at 60 days after application. The root accumulated metribuzin formulations and translocated to the aerial part for both plant species. The polymeric nanomaterials in the soil mitigated alterations in the bacterial community. Metribuzin formulations, mainly nanoformulations even at low dose (48 g a.i. ha-1<small></small>) caused severe photosynthetic damage in the weed species, with reduction of chlorophyll content (up to 2.35 time) and electron flow (up to 9.22 times), leading to eventual mortality. MTZ nanoformulations presented a greater efficacy (even in 10-fold less dose) for weed control compared to conventional formulation. These findings suggest that MTZ nanoformulations improve weed control and attenuate the negative effects on crop and soil health, offering an important nano-enabled strategy for sustainable weed management.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":8.131,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594380","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":"Charcoal Residue from Cashew Nutshells as a Bioadsorbent in Fixed Bed Column for Produced Water","authors":"Karine Fonseca Soares de Oliveira,&nbsp;Joemil Oliveira de Deus Junior,&nbsp;Talita Lorena dado SilvaNascimento,&nbsp;Raoni Batista dos Anjos,&nbsp;Dulce Maria de Araújo Melo,&nbsp;Renata Martins Braga,&nbsp;Marcus Antonio de Freitas Melo","doi":"10.1007/s11270-024-07612-5","DOIUrl":"10.1007/s11270-024-07612-5","url":null,"abstract":"<div><p>One of the produced water treatment methods is adsorption, however, the use of commercial activated carbon as an adsorbent, in industrial scale, makes the process expensive. An alternative for replacing commercial activated carbon is the use of bioadsorbents, which have been gaining emphasis in recent decades, high performance, and low production costs. The objective of this work is to develop an efficient and low cost bioadsorbent by reusing the charcoal from the cashew nutshell (<i>Anarcadium accidentale</i> L.) for the removal of metal ions (Cu²⁺, Pb²⁺ and Cr³⁺), oil and grease content (OGC). The bioadsorbent was pretreated with NaOH and characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), point of zero charge (pHpzc) and Boehm titration. The adsorption tests involved adsorption kinetics and equilibrium experiments in a batch system using metallic solution and in a fixed bed column using multi-element metallic and semi-synthetic OGC solution. The characterization results revealed the presence of hydroxyl, carboxyl and carbonyl groups, as well as an irregular and heterogeneous structure, which are favorable characteristics for the adsorption process. The bioadsorbent was able to remove 98.9; 90.9, 77.1 and 100% for Cu²⁺, Pb²⁺, Cr³⁺ and OGC, respectively, in a fixed bed adsorption column. It is concluded that bioadsorbent developed has high potential for removing metals and OGC, in addition to being an abundant product in nature, renewable, biodegradable and its reuse contributes to reduce environmental pollution, waste production and improves the local circular economy through the recovery of the by-product.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579373","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":"Correction: FeS colloids – formation and mobilization pathways in natural waters","authors":"Vincent Noël, Naresh Kumar, Kristin Boye, Lilia Barragan, Juan S. Lezama-Pacheco, Rosalie Chu, Nikola Tolic, Gordon E. Brown, John R. Bargar","doi":"10.1039/d4en90048k","DOIUrl":"https://doi.org/10.1039/d4en90048k","url":null,"abstract":"Correction for ‘FeS colloids – formation and mobilization pathways in natural waters’ by Vincent Noël <em>et al.</em>, <em>Environ. Sci.: Nano</em>, 2020, <strong>7</strong>, 2102–2116, https://doi.org/10.1039/C9EN01427F.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":null,"pages":null},"PeriodicalIF":8.131,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580409","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}