Article
Environmental Sciences
Mansooreh Dehghani, Samaneh Shahsavani, Amin Mohammadpour, Arian Jafarian, Sara Arjmand, Mohammad Amin Rasekhi, Samaneh Dehghani, Foroozandeh Zaravar, Zahra Derakhshan, Margherita Ferrante, Gea Oliveri Conti
Summary: The study found that the concentration of chlorination by-products in the swimming pool was below international standards, but there still existed potential health risks, especially for male swimmers. The research showed that dermal exposure was the main route of exposure, and swimming exposure time and chloroform concentration were the most relevant variables in the health risk model.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Chong Liu, Carmen Messerlian, Ying-Jun Chen, Vicente Mustieles, Li-Li Huang, Yang Sun, Yan-Ling Deng, Ying-Hui Cheng, Jing Liu, A-Mei Liu, Wen-Qing Lu, Yi-Xin Wang
Summary: The study revealed that exposure to high levels of disinfection by-products during specific trimesters of pregnancy can lead to impaired neonatal neurodevelopment, especially in male infants and mothers aged 25 or older. Further research is needed to explore the underlying mechanisms.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Engineering, Environmental
Emilie Helte, Melle Save-Soderbergh, Henrik Ugge, Katja Fall, Agneta Akesson, Susanna C. Larsson
Summary: This study assessed the association between chlorination by-products (THM) in drinking water and the risk of bladder cancer using data from two population-based cohort studies. The results suggest that exposure to chlorination by-products at THM concentrations representative of chlorinated drinking waters in most European countries is not associated with an increased risk of bladder cancer.
Article
Engineering, Environmental
Alvaro Ramirez, Martin Munoz-Morales, Alfonso de la Morena, Nieves Sanchez, Lucia Penuela, Ana Sanchez, Javier Llanos
Summary: This study investigates the challenge of providing safe tap water while limiting the occurrence of disinfection by-products (DBPs) in a full-scale drinking water treatment plant. Different technologies, such as aeration, coagulation, hydrogen peroxide dosage, ion exchange, and ultrafiltration, were studied in a real surface water matrix. The results show that agitation aeration is most effective in removing DBPs directly, while ion exchange resin is the best at inhibiting their formation. Hydrogen peroxide dosage also shows promising results in preventing the formation of bromate. This study serves as a reference for selecting optimal treatment technologies in full-scale drinking water treatment plants to limit DBP occurrence.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Eunate Abilleira, Fernando Goni-Irigoyen, Juan J. Aurrekoetxea, Maria A. Cortes, Mikel Ayerdi, Jesus Ibarluzea
Summary: The aim of this study was to determine and analyze the concentration of different disinfection by-products (DBPs) in public swimming pools in Gipuzkoa, Spain. The most abundant DBPs were haloacetic acids and trihalomethanes, with chlorinated or brominated forms predominating depending on the disinfection method used. The levels of DBPs were generally below the limits set by the European Chemical Agency, although some maximum values exceeded them. The concentrations of DBPs were higher in outdoor pools and recreational pools compared to indoor and sports pools, respectively.
Article
Engineering, Environmental
Hui Zhang, Junzeng Xue, Qiong Wang, Lin Yuan, Huixian Wu
Summary: Chlorination of ballast water may lead to the production of halogenated disinfection by-products (DBPs), with factors such as holding time, pH, temperature, and bromine/iodine concentration influencing their formation. A positive correlation was found between total residual oxidant consumption and the formation of halogenated DBPs. Humic acid contributed more DBPs than algae in disinfected ballast water.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Environmental Sciences
Gabriel Perez-Lucas, Marina Martinez-Menchon, Nuria Vela, Simon Navarro
Summary: Solar heterogeneous photocatalysis is an effective method for removing trihalomethanes (THMs) from drinking water, especially in sunny areas like the Mediterranean basin.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Water Resources
Alvaro Ramirez, Alfonso de la Morena, Nieves Sanchez, Lucia Penuela, Ana Sanchez-Carretero, Martin Munoz, Javier Llanos
Summary: This study presents a collaboration between the Gasset Service Association and researchers from the University of Castilla-La Mancha in Spain, aiming to comprehensively characterize the formation and removal of disinfection by-products in a drinking water treatment plant and water distribution network. The results indicate that bromate is formed during pre-oxidation and is not eliminated throughout the treatment plant, while total organic carbon is partially removed during clarification. Additionally, the study demonstrates the importance of residence time and water storage type in the distribution network for the generation, stripping, hydrolysis, and biological removal of THMs.
APPLIED WATER SCIENCE
(2023)
Article
Engineering, Environmental
Soklida Hong, Thunyalux Ratpukdi, Andre Delorme, Eakalak Khan
Summary: This study investigated the fate of biobased materials in aquatic environments, highlighting their degradability and chemical characteristics of breakdown products. Results show potential adverse effects on drinking water quality from biobased materials if not managed appropriately.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Luan de Souza Leite, Danilo Vitorino dos Santos, Cristina Filomena Pereira Rosa Paschoalato, Tom Bond, Luiz Antonio Daniel
Summary: Eutrophication in water reservoirs leads to the release of algal organic matter (AOM), which serves as an important precursor for disinfection by-products (DBPs) during water treatment. This study investigates the DBP formation from chlor(am)ination of AOM derived from the microalgae Chlorella sorokiniana, which is expected to become more prevalent in algal blooms due to climate change. The results show that Chlorella sorokiniana AOM exhibits higher DBP formation compared to previously studied algae species.
Review
Chemistry, Physical
Pin Wang, Shunke Ding, Rong Xiao, Guangyu An, Chao Fang, Wenhai Chu
Summary: This article introduces the properties of DBP precursors and the control of DBP formation through enhanced coagulation. Metal-based coagulants can reduce the formation of DBP to some extent, while organic polymers and hybrid coagulants have the potential to mitigate DBP formation. In addition, integrated treatment methods are also evaluated for their efficiency in enhancing DBP precursor removal.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Environmental Sciences
Kowsalya Vellingiri, P. Ganesh Kumar, P. Senthil Kumar, S. Jagannathan, S. Kanmani
Summary: Due to limited access to safe drinking water, India faces a high incidence of waterborne disease outbreaks. Efforts are being made to improve the quality of drinking water, with a focus on disinfection to control microbial populations. However, in India, research on the toxicity and trends of disinfection byproducts (DBPs) is still in its early stages.
Article
Engineering, Environmental
Yang Sun, Peng-Fei Xia, T. I. M. Korevaar, Vicente Mustieles, Yu Zhang, Xiong-Fei Pan, Yi-Xin Wang, Carmen Messerlian
Summary: Exposure to trihalomethanes was associated with altered serum biomarkers of thyroid function but not with thyroid autoimmunity among U.S. adults, according to a study that included 2233 adults from the 2007-2008 NHANES survey.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Karlien Dejaeger, Justine Criquet, Marjolein Vanoppen, Cecile Vignal, Gabriel Billon, Emile R. Cornelissen
Summary: During the disinfection of drinking water, harmful disinfection by-products are produced when natural organic matter reacts with chlorine. Scientists have used fractionation methods to study the reaction process of organic matter. The research found that hydrophilic compounds have higher reactivity towards emerging disinfection by-products. Chlorination time and dose do not affect the reactivity ratio between different fractions.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Hongyan Zhai, Jun Zhao, Rumeng Wang, Yuwei Yan, Shanshan Yu, Yingxin Zhao
Summary: This study aimed to evaluate the decomposition characteristics and transformation potential of 2,6-dichloro-1,4-benzoquinone (2,6-DCBQ) as an intermediate disinfection byproduct (DBP) in water. The results showed that the decomposition of 2,6-DCBQ followed first-order kinetics, and no THMs and HAAs were generated during hydrolysis. However, during chlorination, 2,6-DCBQ rapidly decayed and formed THMs and HAAs.
Article
Construction & Building Technology
Mahsan Sadeghi, Timothy Chaston, Ivan Hanigan, Richard de Dear, Mattheos Santamouris, Bin Jalaludin, Geoffrey G. Morgan
Summary: This study develops a novel method to quantify the benefits of green infrastructure on urban heat balance and population mortality. The results demonstrate that green infrastructure can cool urban environments and reduce heatwave-related mortality.
BUILDING AND ENVIRONMENT
(2022)
Article
Public, Environmental & Occupational Health
Maureen Makama, Arul Earnest, Siew Lim, Helen Skouteris, Briony Hill, Helena Teede, Jacqueline A. Boyle, Wendy J. Brown, Allison M. Hodge, Lisa J. Moran
Summary: Childbearing is associated with increased weight and energy intake, decreased physical activity, improved diet quality, and reduced sitting time. More research is needed to improve weight, energy intake, and physical activity in women of childbearing age.
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
(2023)
Article
Nutrition & Dietetics
Mamaru Ayenew Awoke, Thomas P. Wycherley, Arul Earnest, Helen Skouteris, Lisa J. Moran
Summary: Pre-pregnancy, pregnancy, and postpartum are critical stages associated with higher weight gain and obesity risk. In this study, it was found that the majority of women did not meet dietary or physical activity recommendations at all life stages. Sociodemographic factors were found to be associated with differences in core and discretionary food intake. In pre-pregnant women, higher whole grain intake and energy from alcohol were inversely associated with BMI. In postpartum women, increased fiber intake and physical activity were inversely associated with BMI. This highlights the importance of targeting whole grains, fiber, and physical activity to prevent obesity across life stages, particularly in socioeconomically disadvantaged populations.
Article
Environmental Sciences
Edward Jegasothy, Ivan C. Hanigan, Joe Van Buskirk, Geoffrey G. Morgan, Bin Jalaludin, Fay H. Johnston, Yuming Guo, Richard A. Broome
Summary: This study aimed to estimate the effect of bushfire-related PM2.5 on mortality risk in Sydney, Australia from 2010 to 2020. The results showed that exposure to bushfire PM2.5 was associated with an increased risk of mortality, particularly in those aged 65 years and over.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Public, Environmental & Occupational Health
Jingwen Liu, Alana Hansen, Blesson M. Varghese, Keith Dear, Michael Tong, Vanessa Prescott, Vergil Dolar, Michelle Gourley, Timothy Driscoll, Ying Zhang, Geoffrey Morgan, Anthony Capon, Peng Bi
Summary: With the increasing health risk of high temperature due to climate change, it is important to quantify the scale of the problem. However, estimating the burden of disease (BoD) attributable to high temperature can be challenging due to geographical variations in risk patterns and data accessibility issues. This study presents a methodological framework that refines exposure levels using Koppen-Geiger climate zones and estimates the difference between observed burden and theoretical minimum risk exposure distribution (TMRED). It can be used to estimate burdens across climate zones and enhance the reproducibility and transparency of BoD research.
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
(2023)
Article
Endocrinology & Metabolism
Sylvia Kiconco, Arul Earnest, Joanne Enticott, Roger Hart, Trevor A. Mori, Martha Hickey, Helena J. Teede, Anju E. Joham
Summary: In this study, normative diagnostic criteria cut-offs for PCOS in adolescents were defined using cluster analysis. The findings suggest the need to redefine PCOS diagnostic cut-offs in adolescents, as the new cut-offs correspond to lower percentiles compared to conventional cut-offs.
EUROPEAN JOURNAL OF ENDOCRINOLOGY
(2023)
Letter
Public, Environmental & Occupational Health
Maureen Makama, Arul Earnest, Siew Lim, Helen Skouteris, Briony Hill, Helena Teede, Jacqueline A. Boyle, Wendy J. Brown, Allison M. Hodge, Lisa J. Moran
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
(2023)
Article
Cardiac & Cardiovascular Systems
Robinson Ramirez-Velez, Maria Iriarte-Fernandez, Guzman Santaf, Armando Malanda, John R. Beard, Antonio Garcia-Hermoso, Mikel Izquierdo
Summary: The World Health Organization (WHO) introduced a framework for healthy aging that focuses on functional ability instead of absence of disease. In a prospective cohort study, the link between mortality and respiratory diseases was investigated in almost half a million adults. The study found that higher levels of functional ability were associated with increased risk of respiratory disease mortality, highlighting the importance of the WHO's framework in improving geriatric care.
RESPIRATORY MEDICINE
(2023)
Article
Medicine, General & Internal
Sayed Jafar Ahmadi, Laura Jobson, Zeinab Musavi, Sayed Rohullah Rezwani, Farshad Ahmad Amini, Arul Earnest, Nasratullah Samim, Sayed Ali Akbar Sarwary, Sayed Abbas Sarwary, Daniel McAvoy
Summary: This randomized clinical trial investigated the efficacy of the METRA intervention in improving psychiatric symptoms among adolescent girls in Afghanistan. The study found that the METRA group had significantly greater reductions in PTSD and depression symptoms compared to the TAU group. METRA participants also showed greater improvements in anxiety, Afghan-cultural distress symptoms, and psychiatric difficulties.
Article
Nutrition & Dietetics
Mamaru Ayenew Awoke, Arul Earnest, Helen Skouteris, Lisa J. Moran, Thomas P. Wycherley
Summary: This study used simulation modeling to evaluate the theoretical effect of key diet and physical activity modifications on body mass index (BMI) in prepregnant and postpartum women. The results showed that increasing whole grain intake and physical activity time could significantly reduce BMI. This provides guidance for tailored obesity prevention efforts in reproductive age women.
Article
Medicine, General & Internal
Jessy Hansen, Susannah Ahern, Arul Earnest
Summary: Benchmarking is widely used in clinical registries to identify underperforming clinicians or health service providers and improve health outcomes. However, suitable methods for benchmarking and outlier detection in clinical registries have not been well established, and current methods are inconsistent. This review aimed to determine the current statistical methods for outlier detection in clinical registry benchmarking. Nineteen studies evaluating various statistical methods in 20 clinical registries were included. The optimal methods for detecting outliers in clinical registry benchmarking remain unclear, and different models may yield different results.
Article
Geriatrics & Gerontology
Robinson Ramirez-Velez, Maria Iriarte-Fernandez, Guzman Santafe, Armando Malanda, John R. Beard, Antonio Garcia-Hermoso, Mikel Izquierdo
Summary: The concept of intrinsic capacity (IC) is proposed by the World Health Organization as central for healthy ageing. This study examines the association between IC and cardiovascular disease (CVD) incidence and mortality in middle- and older-aged adults. The results indicate that IC deficit score is a powerful predictor of CVD incidence and premature death.
JOURNAL OF CACHEXIA SARCOPENIA AND MUSCLE
(2023)
Article
Health Care Sciences & Services
Arul Earnest, Getayeneh Antehunegn Tesema, Robert G. Stirling
Summary: This study is the first to use machine learning techniques to predict the quality and timeliness of care among lung cancer patients. Support vector machine and nearest neighbor methods performed well and can help healthcare workers identify patients who do not meet care indicators.
Article
Psychology, Clinical
Sayed Jafar Ahmadi, Zeinab Musavi, Sumia Ahmadi, Sakina Masha, Nasima Muradi, Nasrat Ullah Samim, Sayed Abbas Sarwary, Sayed Ali Akbar Sarwary, Shamila Shahinzada, Daniel Mcavoy, Arul Earnest, Laura Jobson
Summary: This study aimed to investigate the feasibility, acceptability, and efficacy of MEmory Training for Recovery-Adolescent (METRA) in improving psychological symptoms among Afghan adolescent boys following a terrorist attack. The study found that METRA was effective in reducing PTSD symptoms, anxiety, depression, Afghan-cultural distress symptoms, and psychiatric difficulties compared to the control group. These improvements were maintained at the three-month follow-up.
EUROPEAN JOURNAL OF PSYCHOTRAUMATOLOGY
(2023)
Article
Health Care Sciences & Services
Andrew Fu Wah Ho, Mervyn Jun Rui Lim, Arul Earnest, Audrey Blewer, Nicholas Graves, Jun Wei Yeo, Pin Pin Pek, Ling Tiah, Marcus Eng Hock Ong
Summary: This study aimed to quantify the long-term survival and disease burden of out-of-hospital cardiac arrest (OHCA) in an Asian cohort. The analysis of 802 OHCA cases revealed significant variations in annual disease burden and mortality rates.
LANCET REGIONAL HEALTH-WESTERN PACIFIC
(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.
