Article
Food Science & Technology
Sandra Marin-San Roman, Jose Miguel Carot-Sierra, Itziar Saenz de Urturi, Pilar Rubio-Breton, Eva P. Perez-Alvarez, Teresa Garde-Cerdan
Summary: This study optimized and compared the techniques of stir bar sorption extraction (SBSE) and multi-stir bar sportive extraction (mSBSE) for analyzing the volatile composition of grape must. The results showed that SBSE provided higher extraction of volatile compounds than mSBSE. The best conditions for SBSE were determined to be headspace extraction, 500 rpm speed, 6 hours extraction time, 60 degrees C temperature, and sequential NaCl addition.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Mathieu Galmiche, Adeline Colin, Marie-Christelle Clavos, Christelle Pallez, Christophe Rosin, Xavier Dauchy
Summary: Nitroaromatic compounds were used in explosives during world wars and may still be present in the environment. A method for determining 28 nitroaromatic compounds in water was developed using stir bar sorptive extraction (SBSE), enabling sensitive quantification. The study detected up to 16 different nitroaromatic compounds in groundwater samples, with 2,4-DNT and 1,3-DNB showing the highest concentrations.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Daiki Kiyomichi, Celine Franc, Pierre Moulis, Laurent Riquier, Patricia Ballestra, Stephanie Marchand, Sophie Tempere, Gilles de Revel
Summary: Three compounds (2-acetyl-1-pyrroline, 2-acetyltetrahydropyridine, and 2-ethyltetrahydro-pyridine) have been identified as responsible for mousy off-flavor in wines. A simple method for quantifying these N-heterocyclic compounds simultaneously by SBSE-GC-MS was developed. This method provides lower detection and quantification limits compared to previously published concentrations in spoiled wine.
Article
Biochemistry & Molecular Biology
Ruiwen Yang, Armando Alcazar-Magana, Yanping L. Qian, Michael C. Qian
Summary: Smoke-derived taint is a significant concern for the U.S. wine industry, particularly on the west coast, with climate change anticipated to worsen the issue. An analytical approach based on SBSE-GC-MS was proposed in this paper to quantify smoke-related volatile phenols in wines, providing a new tool for evaluating wine smoke exposure.
Article
Biochemical Research Methods
Slavka Nagyova, Peter Tolgyessy, Svetlana Hrouzkova
Summary: A method for determining FIP pesticide and its major degradates in water has been developed, which is environmentally friendly and suitable for screening and monitoring analytes in related samples.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Food Science & Technology
Carmen Diez-Simon, Charlotte Eichelsheim, Doris M. Jacobs, Roland Mumm, Robert D. Hall
Summary: The study demonstrates that differences in aroma, taste, color, and texture of different types of soy sauce are mainly due to variations in country of origin, production process, and ingredient ratios. While soy sauce can now be produced without microorganisms for a shorter and cheaper process, there may be a loss of flavor. Analyzing volatile compounds using SBSE-GC-MS technology can identify significant differences between fermented and non-fermented soy sauces.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Food Science & Technology
L. Valverde-Som, C. Reguera, A. Herrero, L. A. Sarabia, M. C. Ortiz
Summary: This study developed an analytical method for ultra-trace determination of plastic additive residues in coffee, facing challenges of matrix effect and target compound residues. The residue concentrations of BHT, BP, and DiBP released from coffee capsules into solid coffee were found to be around 3, 1, and 12 μg/kg, respectively.
FOOD PACKAGING AND SHELF LIFE
(2021)
Article
Food Science & Technology
Olga Vyviurska, Ha Anh Thai, Dominika Garancovska, Adriano A. Gomes, Ivan Spanik
Summary: Multi-SBSE is a viable alternative for sample preparation, improving data quality and enabling the identification of the geographical origin of botrytized wines. Multivariate optimization and PCA analysis were used to achieve discrimination of the wines.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Chemistry, Applied
David Munoz-Rodriguez, Yamile Perez-Padilla, Alejandro Avila-Ortega, Jesus Alberto Barron-Zambrano, Cristian Carrera-Figueiras
Summary: A translucent coating based on polydimethylsiloxane and aminopropyltriethoxysilane was prepared by a sol-gel method for stir bar sorptive extraction, successfully extracting and preconcentrating organic compounds from aqueous and organic samples. The coating was characterized as homogeneous, relatively polar, and thermally and chemically stable.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Environmental Sciences
Priyankar Chand, Suryendu Dutta, Suparna Mukherji
Summary: Percolation of water through oily sludge during storage and handling can lead to soil and groundwater contamination. In this study, the water-soluble fraction (WSF) of oily sludge, obtained by equilibrating the sludge with water, was analyzed. The WSF contained dissolved organic carbon (DOC) as well as various organic compounds such as quinolines, naphthalenes, and phenol derivatives. A consortium of three bacterial strains was found capable of degrading the WSF, with Bacillus cereus showing the highest degradation rate for certain substances. Biodegradation of WSF led to the removal of n-alkanes within 2 days.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biochemical Research Methods
Tatiana Cucu, Frank David, Christophe Devos, Pat Sandra
Summary: This study conducted a detailed aroma profiling of lager beer samples from Belgium, The Netherlands, and France using SBSE and GC-TOFMS techniques, establishing an extended database of beer aroma compounds that can be applied in beer quality optimization and quality control.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Food Science & Technology
Yuan Mei, Lihong Ge, Haimei Lai, Yali Wang, Xueqing Zeng, Yuli Huang, Menglu Yang, Yongqing Zhu, Huajia Li, Juan Li, Chuanchuan Guo, Tao Hu, Nan Zhao
Summary: This study used SBSE-GC-O/MS to investigate the volatile compounds and key odorants in Suancai during two-stage fermentation. The results showed that the composition of esters, alkanes, and alcohols changed during fermentation, leading to the rich and mild aroma of Suancai. The decrease in isothiocyanate levels and the transformation of aroma could potentially be used as markers for estimating the maturity degree of Suancai. This study provides important insights for improving the aromatic quality of fermented vegetables.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Tetsuya Sasaki, Nobuo Ochiai, Yuya Yamazaki, Kikuo Sasamoto
Summary: This study characterized the aroma compounds in Yamahai-brewed sake using SA-SBSE with GC-O/MS. The analysis showed that Yamahai-brewed sake had higher content of several compounds compared to Sokujo-brewed sake.
Article
Chemistry, Analytical
Jose Grau, Juan L. Benede, Alberto Chisvert
Summary: This study developed an analytical method for the determination of nitro musks in environmental water samples using magnetic-based microextraction techniques. The method showed good sensitivity and accuracy, with reliable application potential in water samples of different origins.
Review
Chemistry, Analytical
Sayyed Hossein Hashemi, Massoud Kaykhaii
Summary: This article reviews the various applications, advantages and disadvantages of nano-coatings as media for micmextraction by stir bar, analyzing the critical evaluation of currently available methods. It is shown that using nano-coatings as coatings can improve the efficiency of stir bar sorption extraction.
Article
Engineering, Chemical
Laura Valenzuela, Georgiana Amariei, Chizoba I. Ezugwu, Marisol Faraldos, Ana Bahamonde, Marta E. G. Mosquera, Roberto Rosal
Summary: This study investigated the application of two synthesized zirconium-based Metal-Organic Frameworks (Zr-MOFs) in photoelectrocatalytic disinfection processes, and found that the photoelectrocatalytic configuration under 365 nm UVA irradiation had a higher disinfection efficiency. The Zr-MOFs exhibited high disinfection capacity under solar irradiation, which was attributed to the transfer of photoexcited electrons from ligand to cluster by high energy photons.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Beatriz Sierra-Serrano, Amalia Garcia-Garcia, Tania Hidalgo, Daniel Ruiz-Camino, Antonio Rodriguez-Dieguez, Georgiana Amariei, Roberto Rosal, Patricia Horcajada, Sara Rojas
Summary: This study describes the synthesis of a new type of MOF based on agrochemicals, which shows promising potential in agriculture due to its broad-spectrum antibacterial and herbicidal effects.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biochemistry & Molecular Biology
Anamary Pompa-Pernia, Serena Molina, Amaia Lejarazu-Larranaga, Junkal Landaburu-Aguirre, Eloy Garcia-Calvo
Summary: This study validated the application capability of recycled nanofiltration (rNF) membranes and recycled anion-exchange membranes (rAEMs) obtained from end-of-life reverse osmosis (RO) membranes in saline wastewater treatment. Recycled membranes provide a cost-effective and environmentally friendly option by integrating membrane-based technology into a circular economy model. The results showed that rNF membranes exhibited high selective rejection of divalent ions, while rAEMs demonstrated appropriate demineralization rate in comparison to commercial membranes without compromising power consumption.
Article
Environmental Sciences
Miguel Tamayo-Belda, Gerardo Pulido-Reyes, Miguel Gonzalez-Pleiter, Keila Martin-Betancor, Francisco Leganes, Roberto Rosal, Francisca Fernandez-Pinas
Summary: Bioplastics degrade slowly in the environment and produce nanoplastics and oligomers, which have toxic effects on aquatic organisms.
Article
Engineering, Environmental
Sergio Martinez-Campos, Miguel Gonzalez-Pleiter, Andreu Rico, Theresa Schell, Marco Vighi, Francisca Fernandez-Pinas, Roberto Rosal, Francisco Leganes
Summary: This study investigated the interaction between the plastisphere and living organisms in freshwater ecosystems over a one-year period. It found that species diversity was influenced by the site, and analyzed the core microbiomes in plastic items at different time points. Additionally, the study revealed a positive correlation between antibiotic concentration in river water and abundance of antibiotic resistance genes on plastics.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Jorge Senan-Salinas, Junkal Landaburu-Aguirre, Raquel Garcia-Pacheco, Eloy Garcia-Calvo
Summary: This study conducted an environmental analysis of the entire life cycle of recycled nanofiltration (r-NF) membranes for the first time, emphasizing the importance of energy use during the usage stage. By evaluating different strategies and energy sources, the optimal method to improve the permeability of r-NF membranes was identified.
Article
Environmental Sciences
Irene Verdu, Georgiana Amariei, Cristina Rueda-Varela, Miguel Gonzalez-Pleiter, Francisco Leganes, Roberto Rosal, Francisca Fernandez-Pinas
Summary: This study aimed to evaluate the influence of biofilm on the role of microplastics as vectors of pollutants and their impact on Daphnia magna. The results indicated that biofilm had an effect on the bioadsorption of microplastics, which may affect their potential toxicity towards aquatic organisms. Therefore, future studies should include characterization of biofilms growing on plastic to more accurately assess the impact of plastics in the environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Pharmacology & Pharmacy
Ana Arenas-Vivo, Vanessa Celis Arias, Georgiana Amariei, Roberto Rosal, Isabel Izquierdo-Barba, Tania Hidalgo, Maria Vallet-Regi, Hiram I. Beltran, Sandra Loera-Serna, Patricia Horcajada
Summary: Surface microbial colonization and biofilm formation are major problems causing human infectious diseases, and traditional treatments are often ineffective in eliminating biofilms. This study presents a silver-based metal-organic framework (AgBDC) that has antifouling properties and can prevent bacterial adhesion and surface contamination.
Article
Chemistry, Applied
Laura Valenzuela, Marta Pedrosa, Ana Bahamonde, Roberto Rosal, Andre Torres-Pinto, Claudia G. Silva, Joaquim L. Faria, Adrian M. T. Silva
Summary: In this study, metal-free carbon nitride-based membranes were successfully prepared by incorporating bulk or exfoliated graphitic carbon nitride (g-C3N4) photocatalysts into a polyvinylidene fluoride (PVDF) matrix. Supported membranes were also made by immobilizing these photocatalysts on a polytetrafluoroethylene (PTFE) substrate. The membranes exhibited efficient photocatalytic filtration performance for venlafaxine (VFX) degradation under visible light irradiation, with conversions above 95% and negligible VFX concentration in the effluent after 5 hours of operation. Furthermore, the membranes showed resistance to fouling and maintained a constant permeate flux throughout continuous operation.
Article
Environmental Sciences
Irene Verdu, Miguel Gonzalez-Pleiter, Francisco Leganes, Francisca Fernandez-Pinas, Roberto Rosal
Summary: Farmlands act as sources of both aged plastics and pesticides, which can impact the surrounding environment. This study examined the potential role of agricultural plastics in carrying a mixture of herbicides and their effects on freshwater microalgae. The results revealed that aged plastics had an increased capacity to retain and release herbicides, leading to adverse effects on the microalgae including oxidative stress and metabolic dysfunction. The toxicological interactions of the herbicide mixture varied depending on the effect level, showing both antagonistic and synergistic effects. This study confirms that aging enhances the vector behavior of agricultural plastics for toxic chemicals to biota.
Article
Engineering, Environmental
Miguel Tamayo-Belda, Ana Villanueva Perez-Olivares, Gerardo Pulido-Reyes, Keila Martin-Betancor, Miguel Gonzalez-Pleiter, Francisco Leganes, Denise M. Mitrano, Roberto Rosal, Francisca Fernandez-Pinasa
Summary: In this study, palladium-doped polystyrene NPLs (PS-NPLs) with irregular surface morphology were used to assess their toxicity on cyanobacterium, green algae, and crustacean. The EC50 concentration for D. magna was 49 mg NPLs/L, while for C. reinhardtii it was 248 mg NPLs/L. PS-NPLs induced reactive oxygen species overproduction, membrane damage, and metabolic alterations in a dose-dependent manner. The distribution of PS-NPLs under static and stirring conditions was studied to understand their environmental fate.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Chizoba I. Ezugwu, Srabanti Ghosh, Susmita Bera, Marisol Faraldos, Marta E. G. Mosquera, Roberto Rosal
Summary: A series of robust octahedral bimetallic metal-organic frameworks were synthesized by solvothermal de novo reaction using 2-aminoterephthalic acid and mixed metal salts. The bimetallic Zr/M-ATA materials showed higher photocatalytic performance compared to the monometallic Zr-ATA material. Among them, Zr/Cu-ATA exhibited excellent performance for CO2 reduction and hydrogen generation under visible light irradiation, attributed to optimized bandgap and abundant active sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Virginia Galvez-Blanca, Carlos Edo, Miguel Gonzalez-Pleiter, Marina Albentosa, Javier Bayo, Ricardo Beiras, Francisca Fernandez-Pinas, Jesus Gago, May Gomez, Rosario Gonzalez-Cascon, Javier Hernandez-Borges, Junkal Landaburu-Aguirre, Ico Martinez, Soledad Muniategui-Lorenzo, Cristina Romera-Castillo, Roberto Rosal
Summary: The aim of this study was to investigate the occurrence of microplastics (MPs) in drinking water in Spain by comparing tap water from different locations. Tap water from 24 points in 8 different locations in Spain was sampled and analyzed. The results showed that the concentration of MPs in the drinking water samples was relatively low and would probably pose a negligible risk to human health.
Article
Environmental Sciences
Miguel Tamayo-Belda, Catia Venancio, Francisca Fernandez-Pinas, Roberto Rosal, Isabel Lopes, Miguel Oliveira
Summary: This study investigated the toxicity of environmentally realistic nanoplastics (NPLs) derived from mechanically broken down polymers on two freshwater secondary consumers. The results showed harmful effects of NPLs on the tested organisms, especially polypropylene, low-density polyethylene, and polylactic acid.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Roberta R. M. Silva, Laura Valenzuela, Roberto Rosal, Luis A. M. Ruotolo, Francisco G. E. Nogueira, Ana Bahamonde
Summary: In this study, a Co3O4 coating was applied to photoactivate peroxymonosulfate (PMS) for the degradation of imidacloprid (IMD) under continuous-flow conditions. The synergistic activation of PMS by Co2+ and Co3+ species in the Co3O4 catalyst and the UV component of solar irradiation were the key factors contributing to the outstanding performance of the Co3O4/PMS/solar irradiation process. The combination of solar light, Co3O4, and PMS showed great potential for treating effluents containing harmful pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.
