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Decoupling of diversity and network complexity of bacterial communities during water quality deterioration
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-11-04 DOI: 10.1016/j.jes.2024.10.021
Qiuyue Feng , Yuyan Liu , Kaiming Hu , Guanghui Wang , Zhiquan Liu , Yu Han , Wenbing Li , Hangjun Zhang , Binhao Wang
{"title":"Decoupling of diversity and network complexity of bacterial communities during water quality deterioration","authors":"Qiuyue Feng ,&nbsp;Yuyan Liu ,&nbsp;Kaiming Hu ,&nbsp;Guanghui Wang ,&nbsp;Zhiquan Liu ,&nbsp;Yu Han ,&nbsp;Wenbing Li ,&nbsp;Hangjun Zhang ,&nbsp;Binhao Wang","doi":"10.1016/j.jes.2024.10.021","DOIUrl":"10.1016/j.jes.2024.10.021","url":null,"abstract":"<div><div>Numerous studies have examined the impact of water quality degradation on bacterial community structure, yet insights into its effects on the bacterial ecological networks remain scarce. In this study, we investigated the diversity, composition, assembly patterns, ecological networks, and environmental determinants of bacterial communities across 20 ponds to understand the impact of water quality degradation. Our findings revealed that water quality degradation significantly reduces the α-diversity of bacterial communities in water samples, while sediment samples remain unaffected. Additionally, water quality deterioration increases the complexity of bacterial networks in water samples but reduces it in sediment samples. These shifts in bacterial communities were primarily governed by deterministic processes, with heterogeneous selection being particularly influential. Through redundancy analysis (RDA), multiple regression on matrices (MRM), and Mantel tests, we identified dissolved oxygen (DO), ammonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), and C/N ratio as key factors affecting the composition and network complexity of bacterial communities in both water and sediment. Overall, this study contributes a novel perspective on the effect of water quality deterioration on microbial ecosystems and provides valuable insights for improving ecological evaluations and biomonitoring practices related to water quality management.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"155 ","pages":"Pages 86-95"},"PeriodicalIF":5.9,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157844","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}
引用次数: 0
Effect of DOM transformation on As enrichment from an Alpine river basin in the Western Tibetan Plateau
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-30 DOI: 10.1016/j.jes.2024.10.018
Yue Jiang , Tianliang Zheng , Hui Li , Hongying Jiang , Yang Deng , Jianfei Yuan , Xingguo Du , Xiangjun Pei
{"title":"Effect of DOM transformation on As enrichment from an Alpine river basin in the Western Tibetan Plateau","authors":"Yue Jiang ,&nbsp;Tianliang Zheng ,&nbsp;Hui Li ,&nbsp;Hongying Jiang ,&nbsp;Yang Deng ,&nbsp;Jianfei Yuan ,&nbsp;Xingguo Du ,&nbsp;Xiangjun Pei","doi":"10.1016/j.jes.2024.10.018","DOIUrl":"10.1016/j.jes.2024.10.018","url":null,"abstract":"<div><div>The geogenic enrichment of arsenic (As) extensively occurred in the riverine systems from the Qinghai-Tibetan Plateau under active geothermal discharge and chemical weathering conditions, while little is known about how dissolved organic matter (DOM) transformation regulates the aquatic As concentrations. The present study revealed that the DOM components from the Singe Tsangpo River (STR) basin primarily consisted of protein-like components (81.30 % ± 6.48 %), with the microbially-endogenous production being a predominant source under the control of temperature and glacier-runoff recharge along the river flow path. Notably, the chemical weathering processes have significantly facilitated the enhancement of humic-like components in the river water. Besides, the groundwater DOM characteristics were predominantly influenced by the mobilization of sedimentary organic matter and the introduction of allochthonous DOM resulting from surface-water recharge. Interestingly, humic-like components facilitated As enrichment through complexation and competitive adsorption effects in both surface water and groundwater under oxidizing conditions, which was supported by the significant positive correlations between As and humic-like component (<em>R</em><sup>2</sup> = 0.31/0.65, <em>P</em> &lt; 0.05/0.01) and the concurrent mobilization of As and humic-like components from sediment incubation experiments. Moreover, the Structural Equation Modeling analysis revealed a stronger contribution of humic-like components to the As enrichment in the groundwater compared with surface water, possibly due to the relatively stronger microbial activity and enhanced mobilization of humic-like components in alluvial aquifers. The present study thus provided new insights into the transformation of DOM and its important role in facilitating As enrichment in the aquatic environment from alpine river basins.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 385-398"},"PeriodicalIF":5.9,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746592","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}
引用次数: 0
Efficient removal of metals and resource recovery from acid mine drainage by modified chemical mineralization coupling sodium sulfide precipitation
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-30 DOI: 10.1016/j.jes.2024.10.019
Ting Li, Fange Cheng, Xin Du, Jianru Liang, Lixiang Zhou
{"title":"Efficient removal of metals and resource recovery from acid mine drainage by modified chemical mineralization coupling sodium sulfide precipitation","authors":"Ting Li,&nbsp;Fange Cheng,&nbsp;Xin Du,&nbsp;Jianru Liang,&nbsp;Lixiang Zhou","doi":"10.1016/j.jes.2024.10.019","DOIUrl":"10.1016/j.jes.2024.10.019","url":null,"abstract":"<div><div>Acid mine drainage (AMD) seriously pollutes the environment due to its high acidity and a variety of heavy metals. Although lime neutralization has traditionally been employed to treat AMD, it comes with disadvantages, such as the large quantity of lime required and the generation of substantial amounts of neutralized sludge. Hence, we propose a modified chemical mineralization coupled with sodium sulfide precipitation to simultaneously recover metals from AMD and neutralize acidity. The modified chemical mineralization process effectively removed total iron (TFe) and SO<sub>4</sub><sup>2-</sup> through chemically forming schwertmannite (Sch). By regulating temperature and H<sub>2</sub>O<sub>2</sub> addition mode, the hydrolysis of Fe<sup>3+</sup> and SO<sub>4</sub><sup>2-</sup> in chemical mineralization was significantly enhanced, resulting in a high yield of Sch. Subsequent introduction of sodium sulfide to already-treated AMD using modified chemical mineralization could harvest or recover other valuable metals other than Fe and maintain a neutral pH of the final effluent. The metal levels in the sulphide precipitation reached as high as 17.9 mg/g, which was three times higher than that achieved through lime neutralization (6.3 mg/g). Moreover, the cost of treating AMD was 15 Chinese Yuan (CNY)/m<sup>3</sup> AMD, which was significantly lower than that of lime neutralization (35 CNY/m<sup>3</sup> AMD). Therefore, this approach has a good engineering application prospect in actual AMD treatment.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 399-407"},"PeriodicalIF":5.9,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761275","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}
引用次数: 0
Precipitation patterns of nitrogen and phosphorus in reservoirs: A study in typical sand-source area of Inner Mongolia using PMF-HYSPLIT model
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-29 DOI: 10.1016/j.jes.2024.10.016
Zhuo Li , Junping Lu , Tingxi Liu , Yi Wang , Jiahui Mi , Zhenyu Shi , Chen Feng , Yinghui Liu , Aojie Sun
{"title":"Precipitation patterns of nitrogen and phosphorus in reservoirs: A study in typical sand-source area of Inner Mongolia using PMF-HYSPLIT model","authors":"Zhuo Li ,&nbsp;Junping Lu ,&nbsp;Tingxi Liu ,&nbsp;Yi Wang ,&nbsp;Jiahui Mi ,&nbsp;Zhenyu Shi ,&nbsp;Chen Feng ,&nbsp;Yinghui Liu ,&nbsp;Aojie Sun","doi":"10.1016/j.jes.2024.10.016","DOIUrl":"10.1016/j.jes.2024.10.016","url":null,"abstract":"<div><div>Analyzing the sources of nitrogen and phosphorus pollution in atmospheric deposition is crucial for protecting the surface water environment in vulnerable areas. This study focused on the Dahekou Reservoir, Shayuan District, Xilin Gol League, Inner Mongolia, China. It established 12 monitoring sites, conducted one-year monitoring, and collected 144 samples. The concentrations of nitrogen, phosphorus, and water-soluble ions in atmospheric wet sedimentation were measured. This study identified atmospheric precipitation types, revealed seasonal variations in nitrogen and phosphorus concentrations, assessed the contribution of atmospheric wet sedimentation to reservoir water quality. Utilizing the air mass backward trajectory (HYSPLIT) model and PMF model, the main pollution sources were analyzed. The results were as follows. 1) During the observation period, the atmospheric precipitation types were nitric acid rain in spring, sulfuric acid rain in winter, and mixed acid rain in summer and autumn. 2) The monthly concentrations of nitrogen and phosphorus of various forms varied significantly, with NH<sub>4</sub><sup>+</sup>-N peaking in spring, NO<sub>3</sub><sup>-</sup>-N and DOP in autumn, and DIP and DON in summer. Annual pollution loads of atmospheric nitrogen and phosphorus precipitation into the reservoir were 35.77 and 4.17 t/a, respectively, severely impacting reservoir water quality. 3) Precipitation was negatively correlated with TN concentration, particularly with the NO<sub>3</sub><sup>-</sup>-N/TN ratio, and positively correlated with TP and DIP concentrations. 4) The analysis of pollution sources indicated that the sources of atmospheric nitrogen and phosphorus wet deposition pollution in the study area included agricultural, anthropogenic, dust, and coal sources, with contribution rates of 32.4 %, 25.6 %, 21.0 %, and 21.0 %, respectively.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 435-449"},"PeriodicalIF":5.9,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768317","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}
引用次数: 0
Mechanism of nano-plastics induced inflammation injury in vascular endothelial cells
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-24 DOI: 10.1016/j.jes.2024.10.011
Xiuxiu Wang , Juan Zhao , Mingyang Gao , Tian Wang , Hongyan Zhang
{"title":"Mechanism of nano-plastics induced inflammation injury in vascular endothelial cells","authors":"Xiuxiu Wang ,&nbsp;Juan Zhao ,&nbsp;Mingyang Gao ,&nbsp;Tian Wang ,&nbsp;Hongyan Zhang","doi":"10.1016/j.jes.2024.10.011","DOIUrl":"10.1016/j.jes.2024.10.011","url":null,"abstract":"<div><div>Nano-plastics, emerging pollutants in the environment, have raised global concern due to their widespread presence in daily life and the potential toxicity to human health. Upon entering human body, nano-plastics can readily interact with vascular endothelial cells within the bloodstream, potentially leading to endothelial dysfunction. However, our understanding of the toxic impact of nano-plastics on vascular endothelial cells remains insufficient, and the underlying mechanism are yet to be elucidated. This study investigated the toxicological effects of nano-plastics on EA.hy 926 endothelial cells. Exposure to different types of nano-plastics such as polystyrene (PS), amino-modified PS or carboxyl-modified PS, resulted in suppress cell activity, damage to the cell membrane, oxidative stress and significantly inhibit cell migration. RNA sequencing (RNA-seq) and small RNA-seq analyses revealed that numbers of genes and miRNAs were differentially expressed after nano-plastics treatment. <em>CEBPB</em>, a gene within the inflammation-related tumor necrosis factor signaling pathway, was confirmed to be a target of miR-1908-5p, indicating that nano-plastics induced activation of <em>CEBPB</em> might promote inflammatory injury to vascular endothelial cells. These results enhance our understanding of the biological effects of nano-plastics and their potential impact on inflammation injury.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 624-634"},"PeriodicalIF":5.9,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152110","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}
引用次数: 0
Enhancement effect of biomass-derived carbon quantum dots (CQDs) on the performance of dye-sensitized solar cells (DSSCs)
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-24 DOI: 10.1016/j.jes.2024.10.001
Ramhari Paneru , Xuejing Kang , Samir Budhathoki , Zhe Chen , Qian Yang , So Tie Tjeng , Qilin Dai , Wenyong Wang , Jinke Tang , Maohong Fan
{"title":"Enhancement effect of biomass-derived carbon quantum dots (CQDs) on the performance of dye-sensitized solar cells (DSSCs)","authors":"Ramhari Paneru ,&nbsp;Xuejing Kang ,&nbsp;Samir Budhathoki ,&nbsp;Zhe Chen ,&nbsp;Qian Yang ,&nbsp;So Tie Tjeng ,&nbsp;Qilin Dai ,&nbsp;Wenyong Wang ,&nbsp;Jinke Tang ,&nbsp;Maohong Fan","doi":"10.1016/j.jes.2024.10.001","DOIUrl":"10.1016/j.jes.2024.10.001","url":null,"abstract":"<div><div>Corn stover, an agricultural waste, was used to prepare nitrogen self-doped carbon quantum dots (CQDs) through a simple hydrothermal method with only water at near room temperature for the first time. The surface, electrochemical, and photovoltaic characteristics of CQDs doped TiO<sub>2</sub> in dye-sensitized solar cells (DSSCs) were thoroughly and systematically examined. The average diameter of blue-fluorescence CQDs measured by a high-resolution transmission electron microscope (HR-TEM) was 4.63 ± 0.87 nm, which consisted of polar functional groups. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy of the biomass-derived CQDs, determined by the cyclic voltammetry (CV) test, were, −5.48 eV and −3.89 eV, respectively. The negative shift of flat band potential (<em>V<sub>fb</sub></em>) in CQDs incorporated photoanode implies the fermi level shifted upward. Experimental results revealed that the improved performance of DSSCs was due to charge transport enhancement and separation, which resulted in the improved energy level configuration between TiO<sub>2</sub>, CQDs, and electrolytes. In this regard, the CQDs serve as a mediator that enables charge carrier transport without hindrance. In this study, CQDs added to TiO<sub>2</sub> + N719, increased short circuit current density (<em>J</em><sub>SC</sub>) and power conversion efficiency (PCE) value by ∼26.00 % (10.13 to 12.69 mA/cm<sup>2</sup>) and 27.20 % (4.78 % to 6.08 %), respectively.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 590-601"},"PeriodicalIF":5.9,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151572","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}
引用次数: 0
Significantly surfactant-enhanced photochemical conversion of SO2 to sulfates on photosensitive substances 表面活性剂显著增强光敏物质上二氧化硫向硫酸盐的光化学转化
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-23 DOI: 10.1016/j.jes.2024.10.014
Hongxing Yang , Wangjin Yang , Xiangli Nan , Ning Tang , Chong Han
{"title":"Significantly surfactant-enhanced photochemical conversion of SO2 to sulfates on photosensitive substances","authors":"Hongxing Yang ,&nbsp;Wangjin Yang ,&nbsp;Xiangli Nan ,&nbsp;Ning Tang ,&nbsp;Chong Han","doi":"10.1016/j.jes.2024.10.014","DOIUrl":"10.1016/j.jes.2024.10.014","url":null,"abstract":"<div><div>The photochemical conversion of SO<sub>2</sub> to sulfates on 4–(benzoyl) benzoic acid (4–BBA) was investigated deeply in the presence of anionic and cationic surfactants. The types of surfactants determined their effect behaviors, and cationic surfactants can significantly enhance the SO<sub>2</sub> oxidation on 4–BBA under irradiation, as shown by larger SO<sub>2</sub> uptake coefficients and sulfate production. Hydrophilic moieties in cationic surfactants have a greater enhancement effect on the photochemical conversion of SO<sub>2</sub> to sulfates than the corresponding hydrophobic moieties. Cationic surfactants obviously increased the accumulation of H<sub>2</sub>O on the surface, which was proved to be the main factor influencing the SO<sub>2</sub> uptake and the sulfate formation on 4–BBA. SO<sub>2</sub> lifetime and sulfate formation rate in the mixture system of photosensitive substances with surfactants were evaluated to be 2.25 days and 0.09 μg/(m<sup>3</sup>·h), respectively.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 539-548"},"PeriodicalIF":5.9,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777547","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}
引用次数: 0
Highly efficient mineralization of phenol through catalytic ozonation using urchin-like CuxCe1Oy-BTC catalysts derived from metal-organic frameworks
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-23 DOI: 10.1016/j.jes.2024.10.013
Erhao Gao , Jiacheng Xu , Fangyi Liu , Zhenzhen Wu , Jiali Zhu , Wei Wang , Jing Li , Shuiliang Yao , Zuliang Wu
{"title":"Highly efficient mineralization of phenol through catalytic ozonation using urchin-like CuxCe1Oy-BTC catalysts derived from metal-organic frameworks","authors":"Erhao Gao ,&nbsp;Jiacheng Xu ,&nbsp;Fangyi Liu ,&nbsp;Zhenzhen Wu ,&nbsp;Jiali Zhu ,&nbsp;Wei Wang ,&nbsp;Jing Li ,&nbsp;Shuiliang Yao ,&nbsp;Zuliang Wu","doi":"10.1016/j.jes.2024.10.013","DOIUrl":"10.1016/j.jes.2024.10.013","url":null,"abstract":"<div><div>The efficient mineralization of phenol and its derivatives in wastewater remains a great challenge. In this study, the bimetallic CuCeO<sub>2</sub>-BTC was screened from a series of MOFs-derived MCeO<sub>2</sub>-BTC (M = La, Cu, Co, Fe, and Mn) catalysts, and the influence of the Cu/Ce ratio on phenol removal by catalytic ozonation was carefully examined. The results indicate that Cu<sub>2</sub>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC was the best among the Cu<em><sub>x</sub></em>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC (<em>x</em> = 0, 1, 2, and 3) catalysts, with a phenol mineralization efficiency reaching close to 100 % within 200 min, approximately 30.1 % higher than CeO<sub>2</sub>-BTC/O<sub>3</sub> and 70.3 % higher than O<sub>3</sub> alone. The order of mineralization efficiency of phenol was Cu<sub>2</sub>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC &gt; Cu<sub>3</sub>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC &gt; Cu<sub>1</sub>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC &gt; CeO<sub>2</sub>-BTC. CeO<sub>2</sub>-BTC exhibited a broccoli-like morphology, and Cu<em><sub>x</sub></em>Ce<sub>1</sub>O<sub>y</sub>-BTC (<em>x</em> = 1, 2, and 3) exhibited an urchin-like morphology. Compared with Cu<em><sub>x</sub></em>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC (<em>x</em> = 0, 1, and 3), Cu<sub>2</sub>Ce<sub>1</sub>O<sub>y</sub>-BTC exhibited a larger specific surface area and pore volume. This characteristic contributed to the availability of more active sites for phenol degradation. The redox ability was greatly enhanced as well. Besides, the surface of Cu<sub>2</sub>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC exhibited a higher concentration of Ce<sup>3+</sup> species and hydroxyl groups, which facilitated the dissociation of ozone and the generation of active radicals. Based on the results of radical quenching experiments and the intermediates detected by LC-MS, a potential mechanism for phenol degradation in the Cu<sub>2</sub>Ce<sub>1</sub>O<sub><em>y</em></sub>-BTC/O<sub>3</sub> system was postulated. This study offers novel perspectives on the advancement of MOFs-derived catalysts for achieving the complete mineralization of phenol in wastewater through catalytic ozonation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 575-589"},"PeriodicalIF":5.9,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151567","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}
引用次数: 0
Efficient selenite reduction and chromium resistance by multiple pathways in Bacillus wiedmannii ES2-45 and Se-biofortification in rice by foliar application
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-22 DOI: 10.1016/j.jes.2024.10.010
Fang Ma, Tiantian Zhao, Jiayi Guo, Huimin Cui, Yiting Wang, Xiong Luo, Shixue Zheng
{"title":"Efficient selenite reduction and chromium resistance by multiple pathways in Bacillus wiedmannii ES2-45 and Se-biofortification in rice by foliar application","authors":"Fang Ma,&nbsp;Tiantian Zhao,&nbsp;Jiayi Guo,&nbsp;Huimin Cui,&nbsp;Yiting Wang,&nbsp;Xiong Luo,&nbsp;Shixue Zheng","doi":"10.1016/j.jes.2024.10.010","DOIUrl":"10.1016/j.jes.2024.10.010","url":null,"abstract":"<div><div>Microbial selenite (Se(IV)) reduction to elemental selenium nanoparticles (SeNPs) and chromate (Cr(VI)) remediation constitute effective detoxification processes. The strain <em>Bacillus wiedmannii</em> ES2-45 can efficiently reduce 5 mmol/L Se(IV) into SeNPs over 14 h and 1 mmol/L Cr(VI) within 36 h. Proteomic analysis and qRT-PCR revealed that reductases, including dithiol oxidoreductase (DsbA), Fe-S biosynthesis domain-containing protein (Fes), and aldose-6-phosphate reductase (Aldo), and bacillithiol (BSH) were involved in Se(IV) reduction. Heterologous expression further confirmed the Se(IV)-reducing function of three genes and enhanced the Se(IV) and Cr(VI) resistance ability. Moreover, the difference between Se(IV) treatments and controls both intra- and extra- cellular BSH concentration per biomass indicated that BSH contributes to Se(IV) reduction. Selenium-fortified rice was obtained by foliar spray of SeNPs synthesized by the strain ES2-45. To the best of our knowledge, DsbA and Aldo reductase were firstly verified for the role in Se(IV) reduction and Cr(VI) resistance. Importantly, it is a promising strategy that <em>B. wiedmannii</em> ES2-45 is served as an efficient bacterium for SeNP synthesis, selenium biofortification and heavy metal bioremediation.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 660-670"},"PeriodicalIF":5.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807600","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}
引用次数: 0
Review of research advances in microbial sterilization technologies and applications in the built environment
IF 5.9 2区 环境科学与生态学
Journal of Environmental Sciences-china Pub Date : 2024-10-22 DOI: 10.1016/j.jes.2024.09.026
Xinran Zeng , Chunhui Li , Zhenhai Li , Zhizheng Tao , Mingtong Li
{"title":"Review of research advances in microbial sterilization technologies and applications in the built environment","authors":"Xinran Zeng ,&nbsp;Chunhui Li ,&nbsp;Zhenhai Li ,&nbsp;Zhizheng Tao ,&nbsp;Mingtong Li","doi":"10.1016/j.jes.2024.09.026","DOIUrl":"10.1016/j.jes.2024.09.026","url":null,"abstract":"<div><div>As globalization accelerates, microbial contamination in the built environment poses a major public health challenge. Especially since Corona Virus Disease 2019 (COVID-19), microbial sterilization technology has become a crucial research area for indoor air pollution control in order to create a hygienic and safe built environment. Based on this, the study reviews sterilization technologies in the built environment, focusing on the principles, efficiency and applicability, revealing advantages and limitations, and summarizing current research advances. Despite the efficacy of single sterilization technologies in specific environments, the corresponding side effects still exist. Thus, this review highlights the efficiency of hybrid sterilization technologies, providing an in-depth understanding of the practical application in the built environment. Also, it presents an outlook on the future direction of sterilization technology, including the development of new methods that are more efficient, energy-saving, and targeted to better address microbial contamination in the complex and changing built environment. Overall, this study provides a clear guide for selecting technologies to handle microbial contamination in different building environments in the future, as well as a scientific basis for developing more effective air quality control strategies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"154 ","pages":"Pages 314-348"},"PeriodicalIF":5.9,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151559","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}
引用次数: 0
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