Article
Biochemistry & Molecular Biology
Harsharan Singh Bhatia, Matthias Apweiler, Lu Sun, Julian Baron, Ashwini Tirkey, Bernd L. Fiebich
Summary: This study investigated the effects of Licochalcone A, a bioactive flavonoid found in licorice, on neuroinflammation and oxidative stress. It was found that Licochalcone A can modulate microglial activation by interfering with important inflammatory pathways, demonstrating its potential as a therapeutic option for neuroinflammatory diseases.
Article
Veterinary Sciences
Kexing Hao, Jing Wang, Zhiyuan Li, Huihui Chen, Bin Jia, Guangdong Hu
Summary: This study uncovers the molecular mechanism of prostaglandin regulation in sheep trophoblast cells during early pregnancy. The co-treatment of progesterone, estradiol, and interferon-tau increases the ratio of PGE(2)/PGF2α, upregulates PPARγ expression, inhibits the mTOR pathway, and activates cellular autophagy. The PPARγ/mTOR pathway plays a crucial role in regulating trophoblast cell function and prostaglandin secretion.
VETERINARY SCIENCES
(2022)
Article
Clinical Neurology
Ilter Demirhan, Erkan Oner, Zafer Yuksel, Murvet Yuksel, Ergul Belge Kurutas
Summary: The study aimed to assess Raftlin and 8-iso-PGF(2a) levels in patients with Modic changes. The findings indicated that oxidative stress in MC-I patients may be aggravated and cause inflammation formation. The increased levels of 8-iso-PGF(2a) and Raftlin in MC-II and MC-III patients may be an adaptive response to oxidative stress.
EUROPEAN SPINE JOURNAL
(2023)
Article
Pharmacology & Pharmacy
Matthias Apweiler, Jana Streyczek, Soraya Wilke Saliba, Johannes Ditrich, Eduardo Munoz, Bernd L. Fiebich
Summary: The study showed that AM404 and acetaminophen can inhibit IL-1β-induced PGE(2) release, potentially providing a therapeutic option for neuroinflammation and oxidative stress.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Matthias Apweiler, Soraya Wilke Saliba, Jana Streyczek, Thomas Hurrle, Simone Graessle, Stefan Braese, Bernd L. Fiebich
Summary: Oxidative stress is linked to neurological and psychiatric diseases, and developing new pharmaceuticals targeting oxidative dysregulation may be a promising approach for treatment. GPR55, involved in regulating inflammatory and oxidative cell homeostasis, may act as a therapeutic target for oxidative stress related diseases. Coumarin-based compounds with inverse agonistic activities at GPR55 show antioxidative effects, suggesting potential therapeutic options for diseases related to oxidative stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Margalida Monserrat-Mesquida, Magdalena Quetglas-Llabres, Cristina Bouzas, Silvia Garcia, David Mateos, Cristina Gomez, Jose M. Gamez, Henrik E. Poulsen, Josep A. Tur, Antoni Sureda
Summary: This study aimed to assess the effects of a 2-year nutritional and lifestyle intervention on oxidative and inflammatory status in individuals at high cardiovascular disease risk. The results showed a greater reduction in abdominal obesity, blood pressure, and triglyceride levels after the intervention. Furthermore, an improvement in oxidative stress and proinflammatory status was observed.
Review
Biochemistry & Molecular Biology
Elisabetta Zinellu, Angelo Zinellu, Alessandro G. Fois, Maria Carmina Pau, Valentina Scano, Barbara Piras, Ciriaco Carru, Pietro Pirina
Summary: Studies show an imbalance between oxidant and antioxidant molecules favoring the former in exacerbations of COPD, suggesting the potential usefulness of targeting oxidative stress in monitoring disease progression, particularly in patients more prone to exacerbations. Additional research with standardized methods in well-characterized populations is needed.
Review
Biochemistry & Molecular Biology
Fatima Zahra Kamal, Radu Lefter, Hassna Jaber, Ioana-Miruna Balmus, Alin Ciobica, Alin-Constantin Iordache
Summary: Ischemic strokes occur due to arterial blockage, leading to interrupted blood supply to the brain and potential damage or death of brain cells. Oxidative stress is an essential mechanism in ischemic stroke, and the assessment of oxidative stress biomarkers can aid in diagnosing the severity and guiding neuroprotective therapies.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Pamela Decio, Lucas Miotelo, Franco Dani Campos Pereira, Thaisa Cristina Roat, Maria Aparecida Marin-Morales, Osmar Malaspina
Summary: The intensification of agriculture has led to increased use of insecticides, which has raised concerns about their impact on the decline of bee colonies essential for pollination. This study investigated the effects of sublethal concentration of thiamethoxam on Africanized Apis mellifera, revealing changes in enzymatic biomarkers, oxidative stress, and lipid peroxidation in the bees. The study found that certain enzymes and the TBARS assay can serve as useful biomarkers to characterize bee exposure to insecticides.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Medicinal
V. V. Zagitov, N. S. Vostrikov, T. A. Sapozhnikova, M. S. Miftakhov
Summary: The racemic methyl ester of cloprostenol was converted into E-type derivatives through selective protection and enzymatic hydrolysis. The E-type prostaglandin methyl ester showed a higher uterotonic activity compared to the parent cloprostenol and misoprostol.
PHARMACEUTICAL CHEMISTRY JOURNAL
(2023)
Article
Agriculture, Dairy & Animal Science
Maria Rosa Rebordao, Ana Amaral, Carina Fernandes, Elisabete Silva, Karolina Lukasik, Anna Szostek-Mioduchowska, Pedro Pinto-Bravo, Antonio Galvao, Dariusz J. Skarzynski, Graca Ferreira-Dias
Summary: PGF(2 alpha) and PTGFR expression in mare endometrium are influenced by endometrial category and estrous cycle phase. NETs enzymes may modulate PGF(2 alpha) pathway activation and fibrogenesis in the endometrium.
Article
Environmental Sciences
Ata Rafiee, Juana Maria Delgado-Saborit, Peter D. Sly, Hoda Amiri, Shamim Mosalaei, Mohammad Hoseini
Summary: This study aimed to evaluate whether exposure to sodium hypochlorite during the COVID-19 pandemic causes oxidative stress damage in workers engaged in disinfection tasks. The results showed that even low levels of sodium hypochlorite used in disinfection practices might cause oxidative stress related damage. Therefore, implementing protective measures is crucial to reduce the health burdens of exposure to disinfectants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Cell Biology
S. Ankul Singh, Swathi Suresh, Chitra Vellapandian
Summary: This review discusses the rising global ozone in densely populated areas of Asia and Africa, and explores the possible neurotoxicity and biomarkers associated with ozone-induced oxidative stress. It also examines the impact of ozone on blood circulation, antibacterial action, immune response, and other aspects, and suggests the need for further research on biomarkers related to ozone and the brain.
AGEING RESEARCH REVIEWS
(2023)
Article
Immunology
Mohammad Saleem, Anam Iftikhar, Muhammad Asif, Khalid Hussain, Alamgeer, Pervaiz Akhtar Shah, Ammara Saleem, Muhammad Fursian Akhtar, Muhammad Tanzeem, Hafiza Sidra Yaseen
Summary: Asphodelus tenuifolius has been traditionally used for rheumatic pain and inflammation. This study validated its anti-arthritic and anti-inflammatory effects in vivo models, suggesting it could be a potential adjunct to standard NSAIDs therapy.
INFLAMMOPHARMACOLOGY
(2021)
Article
Engineering, Environmental
Fahad Ahmed, Jiaying Li, Jake W. O'Brien, Benjamin J. Tscharke, Saer Samanipour, Phong K. Thai, Zhiguo Yuan, Jochen F. Mueller, Kevin Thomas
Summary: Assessing the in-sewer stability of analgesic biomarkers is crucial for interpreting wastewater-based epidemiology data and estimating community-wide consumption of analgesic drugs. This study found that different biomarkers showed varying levels of stability when subjected to different sewer conditions, providing valuable information for estimating drug loads at the population level using these biomarkers.
Review
Environmental Sciences
Yan Chen, Guangming Jiang, Muttucumaru Sivakumar, Jiangping Wu
Summary: This review summarizes the integration of denitrifying anaerobic methane oxidation (DAMO) and anaerobic ammonium oxidation (Anammox) for wastewater treatment, evaluates the challenges and strategies for their full-scale application, and proposes a conceptual design of innovative wastewater treatment plants based on the integrated DAMO-Anammox.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Substance Abuse
Benjamin J. Tscharke, Jake W. O'Brien, Fahad Ahmed, Lynn Nguyen, Maulik Ghetia, Gary Chan, Phong Thai, Cobus Gerber, Richard Bade, Jochen Mueller, Kevin V. Thomas, Jason White, Wayne Hall
Summary: Wastewater-based epidemiology was used to measure changes in population codeine consumption in Australia after it was rescheduled from an over-the-counter to a prescription-only medicine in 2018. The study found that the average per-capita consumption of codeine decreased by approximately 37% nationally, with significant decreases observed in all states. Areas with less pharmacy access experienced larger decreases in consumption compared to areas with greater pharmacy access. Wastewater analysis can effectively evaluate changes in population pharmaceutical consumption in response to drug scheduling changes.
Article
Engineering, Environmental
Fahad Ahmed, Benjamin Tscharke, Jake W. O'Brien, Wayne D. Hall, Peter J. Cabot, P. Marcin Sowa, Saer Samanipour, Kevin V. Thomas
Summary: A wastewater-based epidemiology method was used to estimate analgesic consumption and assess pain burden in Australian communities. The concentration of analgesics in wastewater samples from 60 communities was analyzed, and the amount of drug consumed per day per 1000 inhabitants was estimated. The burden of pain treatment was categorized as mild to moderate or strong to severe pain, and a higher burden was observed in regional and remote areas. The correlation analysis showed that pain affects populations across socioeconomic groups. Australians spent approximately US $3.5 per day on analgesics. The study suggests that wastewater-based epidemiology can be an effective tool to estimate analgesic consumption and assess pain burden in communities.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Barbara Kasprzyk-Hordern, Frederic Been, Lubertus Bijlsma, Werner Brack, Sara Castiglioni, Adrian Covaci, Bice S. Martincigh, Jochen F. Mueller, Alexander L. N. van Nuijs, Temilola Oluseyi, Kevin V. Thomas
Summary: Water-based environmental monitoring (WBE) has become a useful tool for SARS-CoV-2 surveillance and has been applied to assess illicit drug consumption in communities. It is important to expand its use to evaluate community exposure to chemical stressors. The goal of WBE is to measure exposure, identify exposure-outcome associations, and implement interventions for exposure prevention and public health promotion. To fully utilize WBE, further action is needed, such as integrating WBE with human biomonitoring initiatives, conducting global WBE monitoring campaigns, combining WBE with One Health actions, and advancing analytical tools and methodologies.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Dandan Li, Qiuda Zheng, Kevin V. Thomas, Anh Kim Dang, Vu Ngan Binh, Nguyen Thi Kieu Anh, Phong K. Thai
Summary: Wastewater analysis was used to evaluate the consumption of artificial sweeteners in an urban population in Hanoi, Vietnam. The study found that the daily consumption of artificial sweeteners was stable throughout the week, but varied with different seasons. There were significant correlations between artificial sweeteners and caffeine, indicating common sources.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Guangming Jiang, Yanchen Liu, Song Tang, Masaaki Kitajima, Eiji Haramoto, Sudipti Arora, Phil M. Choi, Greg Jackson, Patrick M. D'Aoust, Robert Delatolla, Shuxin Zhang, Ying Guo, Jiangping Wu, Yan Chen, Elipsha Sharma, Tanjila Alam Prosun, Jiawei Zhao, Manish Kumar, Ryo Honda, Warish Ahmed, Jon Meiman
Summary: Wastewater-based epidemiology (WBE) has the potential to track COVID-19 transmission, but faces methodological limitations. Future research should focus on standardizing sampling and analysis protocols, understanding viral stability in sewer systems, and utilizing artificial intelligence and big data models for smart wastewater surveillance. Further research is also needed for monitoring other viral pathogens and applying WBE beyond COVID-19.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2023)
Article
Environmental Sciences
Katja M. Shimko, Jake W. O'Brien, Xialu Lin, Benjamin J. Tscharke, Kevin Thomas
Summary: Wastewater analysis shows potential in tracking the use of performance- and image-enhancing drugs in communities, but the stability of samples after sampling is currently unknown. This study conducted stability experiments on 52 biomarkers of such drugs in wastewater, testing different conditions including pretreatments, sample preservation methods, and temperatures. The results indicate that filtration and acidification to pH 2 are the optimal preservation methods, with stability ranging from medium to high for up to 200 days. Additionally, a calculator was provided to assist in sample collection and archiving.
Article
Chemistry, Analytical
Denice van Herwerden, Jake W. O'Brien, Sascha Lege, Bob W. J. Pirok, Kevin V. Thomas, Saer Samanipour
Summary: Clean high-resolution mass spectra are crucial for the successful structural elucidation of unknown features in non-target analysis workflows. An algorithm combining time domain and mass domain information is presented for spectral deconvolution, achieving high true positive rates and reduction rates in real samples. The combination of correlation analysis and the cumulative neutral loss model proved to be the most effective for fragment deconvolution.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Pradeep Dewapriya, Sandra Nilsson, Sara Ghorbani Gorji, Jake W. O'Brien, Jennifer Braunig, Maria Jose Gomez Ramos, Eric Donaldson, Saer Samanipour, Jonathan W. Martin, Jochen F. Mueller, Sarit L. Kaserzon, Kevin V. Thomas
Summary: Leaching of PFASs from Australian firefighting training grounds has resulted in extensive contamination. A study identified various PFAS classes in cattle's blood exposed to contaminated groundwater and discovered novel PFASs. Results suggest that targeting only major PFASs underestimates the toxicological risks associated with exposure.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Mathieu Feraud, Jake W. O'Brien, Saer Samanipour, Pradeep Dewapriya, Denice van Herwerden, Sarit Kaserzon, Ian Wood, Cassandra Rauert, Kevin V. Thomas
Summary: Non-target analysis (NTA) using high-resolution mass spectrometry (HRMS) coupled with liquid chromatography is increasingly employed for identifying biologically relevant chemicals. Interpreting HRMS datasets, which are often recorded in vendor-specific formats, can be challenging due to their large and complex nature. InSpectra is a web-based, open-source platform that offers flexible and extensible NTA workflows for the systematic detection of emerging chemical threats. It provides a reproducible and transparent approach for identifying, tracking, and prioritizing these threats.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Construction & Building Technology
Kirthi Chetty, Ulf Garbe, Timothy McCarthy, Faisal Hai, Guangming Jiang
Summary: This study evaluated the mechanical properties and self-healing performance of freshly casted and 19-month-aged bioconcrete samples with integrated sulfate-reducing bacteria (SRB) and nitrate-reducing bacteria (NRB) granules that were cultivated in an upflow anaerobic sludge blanket (UASB) reactor with synthetic wastewater. The results showed that both fresh and aged bioconcrete met the design requirement of 28-day compressive strength and had a low volume of permeable voids. The self-healing ability of the bioconcrete was demonstrated by the deposition of calcite on cracked samples after exposure to different water media.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Engineering, Environmental
Phong H. N. Vo, Trent A. Key, Tu Hoang Le, Jeffrey T. Mcdonough, Scott Porman, Stephanie Fiorenza, Hong T. M. Nguyen, Vinh T. N. Dao, Jochen F. Mueller, Phong K. Thai
Summary: This study aimed to assess the effectiveness of two commercially available sealants in reducing the leaching of PFAS from concrete surfaces and develop a model to predict the cumulative leaching of five PFAS over 20 years. The results showed that both sealants reduced the leaching of PFAS, with Product B performing better than Product A. The model predicted a cumulative leaching of about 400 mg/m(2) of PFOS from an unsealed concrete surface over 20 years, while sealing with Product A resulted in an estimated leakage of 85% of PFOS (approximately 340 mg/m(2)), and negligible leaching was observed after sealing with Product B (< 5 x 10(-9) mg/m(2)).
Review
Environmental Sciences
Shuxin Zhang, Jiahua Shi, Xuan Li, Ananda Tiwari, Shuhong Gao, Xu Zhou, Xiaoyan Sun, Jake W. O'Brien, Lachlan Coin, Faisal Hai, Guangming Jiang
Summary: This study conducted a meta-analysis and systematic review on the prevalence of Campylobacter spp. in different wastewater samples. The results showed that the overall prevalence of Campylobacter spp. was 52.97% in all types of wastewater samples, with the highest concentration in the influent wastewater during autumn. Campylobacter jejuni, Campylobacter coli, and Campylobacter lari were the most prevalent species found in wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Substance Abuse
Phong K. Thai, Benjamin J. Tscharke, Jake O'Brien, Coral Gartner, Richard Bade, Cobus Gerber, Jason M. White, Qiuda Zheng, Zhe Wang, Kevin Thomas, Jochen F. Mueller
Summary: The study aimed to quantify changes in smoking prevalence in Australia through nicotine consumption. The findings showed that although smoking prevalence decreased from 2017 to 2019, it increased in 2020, particularly during the early stage of the pandemic. This may be due to higher stress levels and increased opportunities to smoke/vape while working from home and during lockdowns.
NICOTINE & TOBACCO RESEARCH
(2023)
Article
Engineering, Environmental
Jagadeeshkumar Kulandaivelu, Yan Chen, Phil M. Choi, Xuan Li, Mario Rebosura Jr, Yarong Song, Zhiguo Yuan, Jochen F. Mueller, Guangming Jiang
Summary: Iron rich drinking water treatment sludge (Fe-DWTS) can be a potential alternative to control sulfide in the sewer network. Fe-DWTS dosed sewer reactor showed higher removal of some organic micropollutants, while the removal of others decreased along with the decrease in biofilm methanogenic activity. Long-term experiments showed no significant effect of in-sewer dosed Fe-DWTS on the removal of most micropollutants, except for a few compounds which showed slightly higher concentrations in the effluent possibly due to change in microbial composition.
JOURNAL OF HAZARDOUS MATERIALS ADVANCES
(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.
