Water Research X最新文献

{"title":"Advances and perspectives of using stable isotope probing (SIP)-based technologies in contaminant biodegradation","authors":"Jinha Kim ,&nbsp;Myung Hwangbo ,&nbsp;Chih-Hsuan Shih ,&nbsp;Kung-Hui Chu","doi":"10.1016/j.wroa.2023.100187","DOIUrl":"10.1016/j.wroa.2023.100187","url":null,"abstract":"<div><p>Stable isotope probing (SIP) is a powerful tool to study microbial community structure and function in both nature and engineered environments. Coupling with advanced genomics and other techniques, SIP studies have generated substantial information to allow researchers to draw a clearer picture of what is occurring in complex microbial ecosystems. This review provides an overview of the advances of SIP-based technologies over time, summarizes the status of SIP applications to contaminant biodegradation, provides critical perspectives on ecological interactions within the community, and important factors (controllable and non-controllable) to be considered in SIP experimental designs and data interpretation. Current trend and perspectives of adapting SIP techniques for environmental applications are also discussed.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"20 ","pages":"Article 100187"},"PeriodicalIF":7.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/5d/7d/main.PMC10477051.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10522950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Metabolic implications for predatory and parasitic bacterial lineages in activated sludge wastewater treatment systems","authors":"Kyohei Kuroda ,&nbsp;Shun Tomita ,&nbsp;Hazuki Kurashita ,&nbsp;Masashi Hatamoto ,&nbsp;Takashi Yamaguchi ,&nbsp;Tomoyuki Hori ,&nbsp;Tomo Aoyagi ,&nbsp;Yuya Sato ,&nbsp;Tomohiro Inaba ,&nbsp;Hiroshi Habe ,&nbsp;Hideyuki Tamaki ,&nbsp;Yoshihisa Hagihara ,&nbsp;Tomohiro Tamura ,&nbsp;Takashi Narihiro","doi":"10.1016/j.wroa.2023.100196","DOIUrl":"10.1016/j.wroa.2023.100196","url":null,"abstract":"<div><p>Deciphering unclear microbial interactions is key to improving biological wastewater treatment processes. Microbial predation and parasitism in wastewater treatment ecosystems are unexplored survival strategies that have long been known and have recently attracted attention because these interspecies interactions may contribute to the reduction of excess sludge. Here, microbial community profiling of 600 activated sludge samples taken from six industrial and one municipal wastewater treatment processes (WWTPs) was conducted. To identify the shared lineages in the WWTPs, the shared microbial constituents were defined as the family level taxa that had ≥ 0.1% average relative abundance and detected in all processes. The microbial community analysis assigned 106 families as the shared microbial constituents in the WWTPs. Correlation analysis showed that 98 of the 106 shared families were significantly correlated with total carbon (TC) and/or total nitrogen (TN) concentrations, suggesting that they may contribute to wastewater remediation. Most possible predatory or parasitic bacteria belonging to the phyla Bdellovibrionota, Myxococcota, and <em>Candidatus</em> Patescibacteria were found to be the shared families and negatively correlated with TC/TN; thus, they were frequently present in the WWTPs and could be involved in the removal of carbon/nitrogen derived from cell components. Shotgun metagenome-resolved metabolic reconstructions indicated that gene homologs associated with predation or parasitism are conserved in the Bdellovibrionota, Myxococcota, and <em>Ca</em>. Patescibacteria genomes (<em>e.g.</em>, host interaction (hit) locus, Tad-like secretion complexes, and type IV pilus assembly proteins). This study provides insights into the complex microbial interactions potentially linked to the reduction of excess sludge biomass in these processes.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"20 ","pages":"Article 100196"},"PeriodicalIF":7.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10469934/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10524092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Aquaculture bacterial pathogen database: Pathogen monitoring and screening in coastal waters using environmental DNA","authors":"Linus Shing Him Lo ,&nbsp;Xuan Liu ,&nbsp;Hongbin Liu ,&nbsp;Minhua Shao ,&nbsp;Pei-Yuan Qian ,&nbsp;Jinping Cheng","doi":"10.1016/j.wroa.2023.100194","DOIUrl":"10.1016/j.wroa.2023.100194","url":null,"abstract":"<div><p>Increasingly diverse pathogen occurrence in coastal and mariculture areas demands improved monitoring platforms to prevent economic and public health implications. Accessible databases with up-to-date knowledge and taxonomy are critical for detecting and screening environmental pathogens. Condensed from over 3000 relevant reports in peer reviewed articles, we constructed an aquaculture bacterial pathogen database that provides specialized curation of over 210 bacterial pathogenic species impacting aquaculture. Application of the aquaculture bacterial pathogen database to environmental DNA metabarcoding monitoring data in Hong Kong coastal and mariculture waters effectively characterized regional pathogen profiles over a one-year period and improved identification of new potential pathogen targets. The results highlighted the increase in potential pathogen abundance related to aquaculture activity and the associated inorganic nitrogen load, which was chiefly due to the enrichment of <em>Vibrio</em> during the atypical dry winter season. The value of the aquaculture bacterial pathogen database for empowering environmental DNA-based approaches in coastal marine pathogen surveillance benefits water resource management and aquaculture development on a global scale.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"20 ","pages":"Article 100194"},"PeriodicalIF":7.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/68/4a/main.PMC10448209.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10465178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Defense mechanism of Fe(III)-assisted anammox under salt stress: Performance and microbial community dynamics","authors":"Shuyan Yin,&nbsp;Xinbai Jiang,&nbsp;Yuming Wang,&nbsp;Yang Yang,&nbsp;Dan Chen,&nbsp;Jinyou Shen","doi":"10.1016/j.wroa.2023.100188","DOIUrl":"10.1016/j.wroa.2023.100188","url":null,"abstract":"<div><p>Anammox process has attracted attention due to its excellent nitrogen removal properties in nitrogen-rich wastewater treatment. However, there were some obstacles for the application of anammox to treat high saline wastewater due to its sensitivity to salinity. In this study, Fe(III) addition strategy was developed to assist anammox to adapt high saline surroundings, with the defense mechanism involved in Fe(III)-assisted anammox emphasized. Nitrogen removal performance of anammox was deteriorated at 3.5% salinity, with the average total nitrogen removal rate of 0.85 kg/(m³·d) observed. The continuous addition of Fe(III) could significantly assist anammox to resist high salinity through facilitating the enrichment of anammox species. <em>Candidatus</em> Kuenenia was the main anammox species and outcompeted <em>Candidatus</em> Brocadia under high saline surrounding. The relative abundance of <em>Candidatus</em> Kuenenia increased with increased salinity and reached 41.04% under 3.5% salinity. The synthesis of key enzymes of anammox species were improved through Fe(III) addition and then facilitated the energy metabolism of anammox bacteria under 3.5% salinity. This study provides a new thought in Fe(III)-assisted anammox enhancement technologies and deepens the insight of anammox in high saline wastewater treatment.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"20 ","pages":"Article 100188"},"PeriodicalIF":7.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/84/1c/main.PMC10477044.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10540756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Modulation of ultrathin nanosheet structure and nitrogen defects in graphitic carbon nitride for efficient photocatalytic bacterial inactivation","authors":"Keng-Qiang Zhong,&nbsp;Dong-Hua Xie ,&nbsp;Yan-Jun Liu,&nbsp;Pu-Can Guo,&nbsp;Guo-Ping Sheng","doi":"10.1016/j.wroa.2023.100193","DOIUrl":"10.1016/j.wroa.2023.100193","url":null,"abstract":"<div><p>The efficient generation and utilization of ROSs is a key step in determining the achievement of safe drinking water by photocatalytic bacterial inactivation technology. Although graphitic carbon nitride (g-C₃N₄) serves as a green and promising photocatalyst for water disinfection, insufficient bacterial capturing capacity and serious charge recombination of pristine g-C₃N₄ extremely restrict its bactericidal activity. Herein, we develop a facile thermal exfoliation and thermal polymerization method to prepare the nitrogen-defective ultrathin g-C₃N₄ nanosheets (DUCN-500). Our results showed that ultrathin nanosheet structure greatly enhanced bacterial capturing capacity of g-C₃N₄ to increase the utilization efficiency of ROS, which contributed to the performance of DUCN-500 greatly outperforming bulk g-C₃N₄. The nitrogen defects increased ROS generation (·O₂⁻ and H₂O₂) by approximately 4.6 times, which was attributed to negative shift of the conduction band potential and rapid separation of charge carriers. The DUCN-500 could rapidly and completely inactivate <em>Escherichia coli</em> and <em>Bacillus subtilis</em> in real sewage under simulated solar irradiation, accompanied by good anti-interference capability and stability. Additionally, bacterial morphology destruction, the loss of antioxidant enzyme activity and the leakage of protein were proven to be the main mechanisms of photocatalytic sterilization. This study offers new insight into the rational design of efficient g-C₃N₄-based photocatalysts for water disinfection.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"20 ","pages":"Article 100193"},"PeriodicalIF":7.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f9/5d/main.PMC10433005.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10050057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Using multi criteria decision analysis in a geographical information system framework to assess drought risk","authors":"Jessica Penny ,&nbsp;Dibesh Khadka ,&nbsp;Priscila B.R. Alves ,&nbsp;Albert S. Chen ,&nbsp;Slobodan Djordjević","doi":"10.1016/j.wroa.2023.100190","DOIUrl":"10.1016/j.wroa.2023.100190","url":null,"abstract":"<div><p>In this study we use the Mun river basin to demonstrate how a Multi Criteria Decision Analysis – Geographical Information Systems (MCDA-GIS) methodology can be used to assess drought risk. This paper not only provides a step forward in considering other elements such as land use change, climate within drought risk but also splits annual risk across three seasons (wet, cool and hot), previously not done. We also investigate how land use change, in the form of a/reforestation and changing crop varieties could potentially mitigate future risk.</p><p>MCDA rankings from experts found that climatic factors such as rainfall, evapotranspiration and maximum temperature were the most significant. By splitting up the seasons we have been able to observe the temporal and spatial changes in drought risk at an increased detail, an important step in mitigating water security issue in the future. Results for cool months found an increased risk in the north and east (Surin, Si Sa Ket and Rio Et). With hot months finding increased risk in the east (Surin and Si Sa Ket especially) and west in Nakon Ratchasima. Whereas the wet season risk was greatest in the West (Nakon Ratchima, Khon Kean and Mara Sarakham). Differences in future land use scenarios compared to 2017 found that if current trends continued (BAU), the areas at risk from drought will increase. However, by changing land use in the form of a/reforestation (COB) or changing crop types (PRO), drought risk will decrease. Thus, the MCDA-GIS methodology serves as a great starting point, providing a high flexibility in data, meaning the methodology can readily applied to other case studies across the world.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"20 ","pages":"Article 100190"},"PeriodicalIF":7.5,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c4/81/main.PMC10477050.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10225323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Opportunities and challenges of tackling Scope 3 “Indirect” emissions from residential hot water","authors":"S.J. Kenway ,&nbsp;F. Pamminger ,&nbsp;G. Yan ,&nbsp;R. Hall ,&nbsp;K.L. Lam ,&nbsp;R. Skinner ,&nbsp;G. Olsson ,&nbsp;P. Satur ,&nbsp;J. Allan","doi":"10.1016/j.wroa.2023.100192","DOIUrl":"10.1016/j.wroa.2023.100192","url":null,"abstract":"<div><p>The water sector could play a major role towards a Net Zero greenhouse gas (GHG) future if Scope 3 emissions were embraced and operationalised. Significant opportunities and challenges exist in tackling Scope 3 emissions including those associated with customer hot water use. Present GHG emission reduction practices predominantly focus on Scope 1 “within utility” and Scope 2 “purchased energy” emissions. In the urban water cycle, Scope 3 “indirect” emissions dominate, and water use is only one example of Scope 3 emissions. Over 90% of all water cycle GHG emissions can be attributed to water use in residential, industrial and commercial premises, collectively some 7% of global GHG emissions. One possibility is for water utilities to actively support efficient hot water use such as new ultra-low flow shower heads. Scope 3 opportunities also offer a range of cost-effective emissions-reduction opportunities, particularly when the wider perspective of “community value” is considered and not just a “business financial perspective”. Hot water efficiency is additionally essential to Net Zero carbon futures, even with decarbonised grids, because most major Net Zero roadmaps require energy efficiency gains. Scientific and management advance needed includes: accounting methodologies, clear roles, collaboration, new business models, and clear definitions. The water sector has the opportunity to play a significant role in achieving Net Zero cities. The decision how much is yet to be made.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"21 ","pages":"Article 100192"},"PeriodicalIF":7.5,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8c/9b/main.PMC10485153.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10571207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Why stories matter in water research: A case for narrative style paper writing","authors":"Treavor H. Boyer ,&nbsp;Wolfgang Gernjak","doi":"10.1016/j.wroa.2023.100198","DOIUrl":"10.1016/j.wroa.2023.100198","url":null,"abstract":"","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"21 ","pages":"Article 100198"},"PeriodicalIF":7.5,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10491847/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10571202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Phosphorus migration from sediment to phosphorus-inactivating material: A key process neglected by common phosphorus immobilization assessments for lake geoengineering","authors":"Changhui Wang ,&nbsp;Xinyi Shen ,&nbsp;Bo Fan ,&nbsp;Wei Huang ,&nbsp;Chenghao Huang ,&nbsp;Leilei Bai ,&nbsp;Helong Jiang","doi":"10.1016/j.wroa.2023.100197","DOIUrl":"10.1016/j.wroa.2023.100197","url":null,"abstract":"<div><p>Various phosphorus (P)-inactivating materials with a strong capability of immobilizing P in sediment have been developed for lake geoengineering purposes to control internal P pollution. However, unsatisfactory applications have raised concerns about the reliability of the method. This study hypothesized that P migration from sediment to material is a key process regulating the immobilization, which is often neglected by common assessment procedures that assume that the material is closely in contact with sediment (e.g., as mixtures). To verify this hypothesis, 90-day incubation tests were conducted using drinking water treatment residue (DWTR). The results showed that the soluble P in the overlying water of sediment–DWTR mixtures and the mobile P in the mixtures were substantially reduced from the initial period and remained low during the whole incubation tests. However, assessment based on separated samples indicated a gradual P migration from sediment to DWTR for immobilization. Even after 90 days of incubation, mobile P still accounted for ∼5.33% of total P in the separated sediment. Further analysis suggested that using mixtures of sediment with DWTR accelerated P migration during the assessment, leading to a faster P immobilization assessment. Considering the relatively low levels of mobile P in the separated DWTR during incubation, the gradual decrease in mobile P in the separated sediment indicates that sediment P release regulates P immobilization efficiency. Therefore, designing a proper strategy to ensure sufficient time for the material to remain in close contact with the target sediment is critical to reducing uncertainties in lake geoengineering.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"21 ","pages":"Article 100197"},"PeriodicalIF":7.5,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a1/61/main.PMC10466892.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10128084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Influence of pipe materials on in-building disinfection of P. aeruginosa and A. baumannii in simulated hot water plumbing","authors":"Abraham Cullom ,&nbsp;Mattheu Storme Spencer ,&nbsp;Myra D. Williams ,&nbsp;Joseph O. Falkinham III ,&nbsp;Amy Pruden ,&nbsp;Marc A. Edwards","doi":"10.1016/j.wroa.2023.100189","DOIUrl":"10.1016/j.wroa.2023.100189","url":null,"abstract":"<div><p>A framework is needed to account for interactive effects of plumbing materials and disinfectants on opportunistic pathogens (OPs) in building water systems. Here we evaluated free chlorine, monochloramine, chlorine dioxide, and copper-silver ionization (CSI) for controlling <em>Pseudomonas aeruginosa</em> and <em>Acinetobacter baumannii</em> as two representative OPs that colonize hot water plumbing, in tests using polyvinylchloride (PVC), copper-PVC, and iron-PVC convectively-mixed pipe reactors (CMPRs). Pipe materials vulnerable to corrosion (i.e., iron and copper) altered the pH, dissolved oxygen, and disinfectant levels in a manner that influenced growth trends of the two OPs and total bacteria. <em>P. aeruginosa</em> grew well in PVC CMPRs, poorly in iron-PVC CMPRs, and was best controlled by CSI disinfection, whereas <em>A. baumannii</em> showed the opposite trend for pipe material and was better controlled by chlorine and chlorine dioxide. Various scenarios were identified in which pipe material and disinfectant can interact to either hinder or accelerate growth of OPs, illustrating the difficulties of controlling OPs in portions of plumbing systems experiencing warm, stagnant water.</p></div>","PeriodicalId":52198,"journal":{"name":"Water Research X","volume":"21 ","pages":"Article 100189"},"PeriodicalIF":7.5,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45407992","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}