Article
Biodiversity Conservation
Phillip J. Haubrock, Ross N. Cuthbert, Darren C. J. Yeo, Achyut Kumar Banerjee, Chunlong Liu, Christophe Diagne, Franck Courchamp
Summary: The study highlights the economic costs incurred from invasive species in Singapore and Southeast Asia, with a focus on the impact of invasive insects in the Culicidae family. Despite limited cost data available, the estimated total economic costs were substantial, indicating the need for improved evaluation and reporting to support effective mitigation and management strategies.
Article
Biodiversity Conservation
Phillip J. Haubrock, Ross N. Cuthbert, Andrea Sundermann, Christophe Diagne, Marina Golivets, Franck Courchamp
Summary: The economic cost of invasive alien species in Germany between 1960 and 2020 was estimated at US$ 9.8 billion, with potential costs of US$ 8.9 billion. The costs were driven by a broad range of taxa, mainly related to control-related spending and resource damages or losses. With increasing invasion rates, economic costs are expected to rise further, highlighting the need for improved evaluation and reporting to effectively manage invasions.
Article
Biology
Francesca Santicchia, Lucas Armand Wauters, Ben Dantzer, Rupert Palme, Claudia Tranquillo, Damiano Preatoni, Adriano Martinoli
Summary: Animals use the stress response to cope with environmental perturbations. In response to stress, vertebrate animals may release glucocorticoids (GCs) which can have both beneficial and detrimental effects. The study shows that native red squirrels can habituate to prolonged contact with invasive grey squirrels, reducing the potential harmful effects of chronic elevation in GCs.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Environmental Sciences
Antonin Kouba, Francisco J. Oficialdegui, Ross N. Cuthbert, Melina Kourantidou, Josie South, Elena Tricarico, Rodolphe E. Gozlan, Franck Courchamp, Phillip J. Haubrock
Summary: Invasive crustaceans, particularly crayfish and crabs, have resulted in increasing economic costs over time, with Europe and North America being major contributors. Main issues include lack of management costs reporting, dominance of damage-related costs, and insufficient data.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Paride Balzani, Ross N. Cuthbert, Elizabeta Briski, Bella Galil, Gustavo A. Castellanos-Galindo, Antonin Kouba, Melina Kourantidou, Brian Leung, Ismael Soto, Phillip J. Haubrock
Summary: Canals provide economic benefits but also facilitate the introduction and spread of aquatic alien species, which can have negative ecological and economic impacts. However, there is a lack of comprehensive quantification of the economic costs associated with these species. This study used a database to identify the costs of invasive alien species facilitated by major canal systems, highlighting the lack of information and uneven distribution of costs.
Article
Agriculture, Multidisciplinary
Jose Victor Alves Ferreira, Danielle Storck-Tonon, Alexander Webber Perlandim Ramos, Hugo C. M. Costa, David Silva Nogueira, Thiago Mahlmann, Marcio L. Oliveira, Monica Josene Barbosa Pereira, Dionei Jose da Silva, Carlos A. Peres
Summary: Increasing food production while preserving natural ecosystem services linked to native biodiversity is a crucial challenge in the 21st-century. This study assesses the effects of native habitats on Neotropical bee assemblages within agricultural landscapes. The results demonstrate that the replacement of natural ecosystems with soybean monoculture negatively impacts bee diversity and species composition. Protecting areas of native vegetation is essential for maintaining biodiversity and ecosystem services.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Review
Ecology
Dov F. Sax, Martin A. Schlaepfer, Julian D. Olden
Summary: This study provides a framework for considering the positive consequences of non-native species and emphasizes their importance for human well-being. The research suggests that biases against non-native species have hindered policy advances and public understanding, and calls for future research to consider both costs and benefits.
TRENDS IN ECOLOGY & EVOLUTION
(2022)
Article
Biodiversity Conservation
Phillip J. Haubrock, Ross N. Cuthbert, Elena Tricarico, Christophe Diagne, Franck Courchamp, Rodolphe E. Gozlan
Summary: While the ecological impacts of invasion by alien species have been well documented, little is known of the economic costs incurred. The overall economic cost of invasions to Italy between 1990 and 2020 was estimated at US$ 819.76 million, with the majority of costs concentrated in terrestrial habitats.
Article
Biodiversity Conservation
Desika Moodley, Elena Angulo, Ross N. Cuthbert, Brian Leung, Anna Turbelin, Ana Novoa, Melina Kourantidou, Gustavo Heringer, Phillip J. Haubrock, David Renault, Marine Robuchon, Jean Fantle-Lepczyk, Franck Courchamp, Christophe Diagne
Summary: Biological invasions pose a major threat to biodiversity within protected areas worldwide. Protected areas incur high costs from these invasions, highlighting the need for more resources to be invested in managing invasive species for long-term conservation.
BIOLOGICAL INVASIONS
(2022)
Article
Environmental Sciences
Sara Fernandez, Alba Ardura, Oriane Georges, Jose L. Martinez, Marcos Suarez-Menendez, Serge Planes, Eva Garcia-Vazquez
Summary: The movement of organisms facilitated by human activities poses a significant threat to marine biodiversity, particularly for endemic species at risk of being outcompeted by non-indigenous species (NIS). Using environmental DNA (eDNA) metabarcoding, this study analyzed communities in the northern Gulf of Aqaba, Red Sea, which is known for its species richness and endemism. The study found that NIS accounted for 36% of the total species detected from eDNA, with primary producers being more abundant among NIS than native species, suggesting potential alteration of functional diversity. The study highlights maritime traffic as a potential factor contributing to the introduction of non-natives in the region and emphasizes the importance of controlling these species to protect the rich endemic biota of the Red Sea.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Thomas W. Bodey, Zachary T. Carter, Phillip J. Haubrock, Ross N. Cuthbert, Melissa J. Welsh, Christophe Diagne, Franck Courchamp
Summary: Biological invasions are a significant aspect of human-induced environmental change, causing substantial economic costs. From 1968 to 2020, New Zealand has reported economic damage and management costs of approximately US$69 billion. Most of the observed costs are associated with damage, with comparatively little investment in management. Reported costs have been increasing over time, with damage exceeding management expenditure. The majority of reported costs are from terrestrial plants and animals, with primary industries such as agriculture and forestry bearing the brunt of the damages. New Zealand spends more than expected from its Gross Domestic Product on pre- and post-invasion management costs compared to other countries in the InvaCost database. However, some ecologically impactful invasive species are absent from estimated damage costs, and management costs are not reported for certain game animals and agricultural pathogens.
Article
Biodiversity Conservation
Ross N. Cuthbert, Christophe Diagne, Phillip J. Haubrock, Anna J. Turbelin, Franck Courchamp
Summary: Through analyzing the most comprehensive global database of invasion costs (InvaCost), it was found that the economic costs of the top 100 most damaging invasive species are generally higher and cause more severe environmental damage, while other invasive species mainly impact agriculture. Additionally, management expenditures are proportionally much lower for other species compared to the worst species.
BIOLOGICAL INVASIONS
(2022)
Article
Environmental Sciences
Pedro A. M. Leite, Alejandro E. Castellanos, Bradford P. Wilcox, Masuly Vega-Puga, Enrique Martinez, Sara Dennis, Sofia Choza, Delia M. Acuna-Acosta
Summary: Invasion by exotic grasses, such as buffelgrass, is altering the ecohydrological feedbacks in drylands. This study found that buffelgrass significantly affects soil moisture patterns and infiltrability in the Sonoran Desert. The invasion increases hydraulic conductivity and surface roughness, altering hydrological connectivity and potentially impacting native vegetation dynamics and stability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Chunlong Liu, Christophe Diagne, Elena Angulo, Achyut-Kumar Banerjee, Yifeng Chen, Ross N. Cuthbert, Phillip J. Haubrock, Natalia Kirichenko, Zarah Pattison, Yuya Watari, Wen Xiong, Franck Courchamp
Summary: In recent years, invasive species have caused economic losses in Asia totaling US$ 432.6 billion, with the highest costs attributed to insects and mammals, and India and China bearing the highest costs. However, economic cost estimations are lacking for most Asian countries and for over 96% of introduced species in Asia.
Article
Biodiversity Conservation
Bartlomiej Wos, Agnieszka Jozefowska, Tomasz Wanic, Marcin Pietrzykowski
Summary: The study analyzed the effects of native and non-native tree species on soil properties. It found that non-native species had a greater impact on soil nutrient depletion after severe fire disturbance. Therefore, careful selection of suitable tree species is crucial for post-fire reforestation efforts.
Review
Environmental Sciences
J. Robert Britton, Abigail J. Lynch, Helge Bardal, Stephanie J. Bradbeer, Julie A. Coetzee, Neil E. Coughlan, Tatenda Dalu, Elena Tricarico, Belinda Gallardo, Mark Lintermans, Frances Lucy, Chunlong Liu, Julian D. Olden, Rajeev Raghavan, Eleri G. Pritchard
Summary: The Emergency Recovery Plan for freshwater biodiversity recognizes that addressing nonnative species is one of the key actions to prevent loss of freshwater biodiversity. The plan emphasizes the importance of preventing introductions of nonnative species, but also highlights the need for early detection and rapid reaction measures in case of introduction. Control and containment measures are recommended for invasive species, along with invasion risk assessment and species-specific eradication methods.
ENVIRONMENTAL REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Mangana B. Rampheri, Timothy Dube, Farai Dondofema, Tatenda Dalu
Summary: The use of remote sensing in studying groundwater-dependent ecosystems (GDEs) has greatly increased in recent years. Particularly, it has been applied to map groundwater-dependent vegetation (GDV), species diversity, and water quality in these ecosystems. Remote sensing technology has provided opportunities for assessing and monitoring GDEs, especially in semi-arid environments affected by climate change. However, further studies are needed to map other aspects of GDEs and to understand their variability in the face of climate change and human impacts.
PHYSICS AND CHEMISTRY OF THE EARTH
(2023)
Article
Multidisciplinary Sciences
Ludzula Mukwevho, Tatenda Dalu, Frank Chidawanyika
Summary: Protected savannas play a crucial role in preserving biological diversity, but excessive grazing by mammals can have cascading effects on communities and disrupt ecosystem functioning. This study examined the abundance, species richness, and composition of arthropods in long-term grazing exclosures in Kruger National Park, South Africa. The results showed that Hymenoptera, Coleoptera, Diptera, and Araneae were the most abundant orders of arthropods sampled. The abundance and species richness of certain orders, such as Diptera and Hymenoptera, varied significantly between exclosures. The study concludes that long-term mammal grazing can enhance species richness and niche composition, leading to the presence of unique and sparse arthropods in protected savannas.
Article
Environmental Sciences
Chipo P. Mungenge, Ryan J. Wasserman, Farai Dondofema, Chad Keates, Fannie M. Masina, Tatenda Dalu
Summary: Temporary pans are vulnerable to various human activities and can be impacted by pollution, resource extraction, and land use intensification. Human-mediated nutrient enrichment can cause eutrophication and reduce alpha diversity. This study in the Khakhea-Bray Transboundary Aquifer region, South Africa, examined the differences in nutrients and their effect on chlorophyll-a concentrations in pans along a disturbance gradient. The findings suggest that anthropogenic activities have a significant impact on pan water quality and continuous monitoring is needed to understand the nutrient dynamics and its effect on productivity and diversity in these systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Ecology
Ana Clara Sampaio Franco, Valter M. Azevedo-Santos, Marluce Aparecida Mattos de Paula Nogueira, Tommaso Giarrizzo, Rachel Ann Hauser-Davis, Erick Cristofore Guimaraes, Roger Henrique Dalcin, Marcelo Soeth, Matheus Oliveira Freitas, Athila A. Bertoncini, Vinicius Abilhoa, Almir Manoel Cunico, Johnatas Adelir-Alves, Bianca Bentes, Jose Luis Costa Novaes, Mauricio Hostim-Silva, Jonas Rodrigues Leite, Vagner Leonardo Macedo dos Santos, Jean Ricardo Simoes Vitule
Summary: Invasive species are introduced into aquatic ecosystems through aquaculture activities, with tilapia being able to spread through marine and brackish ecosystems as well. This study highlights concerns regarding the effects of aquaculture projects on native Brazilian biota.
Article
Biodiversity Conservation
Fernando Mayer Pelicice, Angelo Antonio Agostinho, Carlos Bernardo Mascarenhas Alves, Marlene Sofia Arcifa, Valter M. Azevedo-Santos, Marcelo Fulgencio Guedes Brito, Pamella Silva de Brito, Paula Maria Genova de Castro Campanha, Fernando Rogerio Carvalho, Gabriel Costa da Costa, Mario Alberto Cozzuol, Almir Manoel Cunico, Fernando Cesar Paiva Dagosta, Rosa Maria Dias, Rodrigo Fernandes, Ana Clara Sampaio Franco, Diego Azevedo Zoccal Garcia, Tommaso Giarrizzo, Eder Andre Gubiani, Erick Cristofore Guimaraes, Lawrence Ikeda, Axel Makay Katz, Andre Lincoln Barroso Magalhaes, Luciano Fogaca de Assis Montag, Marluce Aparecida Mattos de Paula Nogueira, Mario Luis Orsi, Felipe Polivanov Ottoni, Carla Simone Pavanelli, Thalles Gomes Peixoto, Ana Cristina Petry, Paulo Santos Pompeu, Telton Pedro Anselmo Ramos, Luis Reginaldo Ribeiro Rodrigues, Jose Sabino, Wagner Martins Santana Sampaio, Vagner Leonardo Macedo dos Santos, Welber Senteio Smith, Guilherme Souza, Livia Helena Tonella, Jean Ricardo Simoes Vitule
Summary: The introduction of non-native species and resulting biological invasions are prominent features of the Anthropocene Epoch. Some initiatives have emphasized the value and protection of invasive populations, but in the context of megadiverse tropical countries, the protection of highly invasive fishes, such as the peacock basses in Brazil, has raised concerns. Legal instruments have been proposed to restrict fishing and other activities to favor the recruitment, growth, colonization, and spread of these invasive species, but they pose significant risks of environmental degradation, biodiversity loss, and social conflicts.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Biodiversity Conservation
Veronica Nanni, Elena Piano, Pedro Cardoso, Marco Isaia, Stefano Mammola
Summary: Subterranean ecosystems are important for biodiversity and human well-being, but there is limited data and global monitoring programs for these ecosystems, hindering effective conservation strategies. We surveyed experts on subterranean ecosystems worldwide to determine the threats and conservation measures. Experts identified habitat change, direct destruction, and climate change as the most relevant threats, and legislation, land protection, and education as the most effective conservation measures. Expert opinion can provide valuable information for conservation interventions when data is lacking.
BIOLOGICAL CONSERVATION
(2023)
Article
Biology
Danish A. Ahmed, Phillip J. Haubrock, Ross N. Cuthbert, Alok Bang, Ismael Soto, Paride Balzani, Ali Serhan Tarkan, Rafael L. Macedo, Lais Carneiro, Thomas W. Bodey, Francisco J. Oficialdegui, Pierre Courtois, Melina Kourantidou, Elena Angulo, Gustavo Heringer, David Renault, Anna J. Turbelin, Emma J. Hudgins, Chunlong Liu, Showkat A. Gojery, Ugo Arbieu, Christophe Diagne, Boris Leroy, Elizabeta Briski, Corey J. A. Bradshaw, Franck Courchamp
Summary: Biological invasions are a global challenge that has not received enough attention. The InvaCost database provides reliable and up-to-date information on the economic impacts of biological invasions, allowing for effective management and attracting public attention. Over 50 scientific publications have used the database to assess invasion costs across different scales, guiding future policy decisions. The availability and standardization of cost information has improved invasion science as a discipline.
Article
Marine & Freshwater Biology
Rafael L. Macedo, Phillip J. Haubrock, Odete Rocha
Summary: Freshwater ecosystems are vulnerable to harmful algal blooms (HABs), and effective preventive management strategies are urgently needed. This study used SDM techniques to analyze the climatic space and invasion risks of Prymnesium parvum, a notorious HABs species, in North America, Europe, and Australia. The model projections revealed a broader potential distribution of P. parvum than its current geographic range, and the spatial configuration of reservoirs can facilitate its colonization. These models can provide valuable insights for decision-makers and reduce resources required for control measures.
Article
Marine & Freshwater Biology
Christina Wyss Castelo Branco, Lucas Cesar Santos-Cabral, Betina Kozlowsky-Suzuki, Vanessa Guimaraes Lopes, Adriana Lamanna Puga, Rafael Lacerda Macedo
Summary: This study investigated the invasion of Kellicottia bostoniensis and its potential impact on the rotifer assemblage in a large tropical reservoir in southeast Brazil. It was found that the invader had a high degree of invasion and was regulated by different environmental factors compared to resident species.
Review
Environmental Sciences
Joice Silva de Souza, Ana Clara Sampaio Franco, Marcela Rosa Tavares, Tais de Fatima Ramos Guimaraes, Luciano Neves dos Santos
Summary: Non-native species pose a threat to biodiversity and ecosystem functioning in estuaries. This study found that shipping traffic, salinity, and temperature were the main factors influencing the occurrence of non-native fish species in estuaries globally. Hotspots of non-native species were located in areas with high shipping traffic, higher salinity, and colder waters. The study also revealed that there were thermal limits to the geographic range of introduced species and a positive relationship between non-native richness and estuary salinity. These findings contribute to understanding the mechanisms underlying non-native fish richness in estuaries and can aid in the development of management strategies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Masimini S. S. Nkosi, Ross N. N. Cuthbert, Naicheng Wu, Purvance Shikwambana, Tatenda Dalu
Summary: Microplastic pollution in aquatic environments is a global concern, but research on freshwater microplastics, especially in the Global South, is limited. To address this knowledge gap, we studied microplastic dynamics in the Crocodile River in South Africa. Microplastics were more abundant during the cool-dry season in surface water and the hot-dry season in sediments. The main source of microplastics was wastewater, particularly from laundry. This pollution has implications for drinking water and aquatic biota in the area.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biodiversity Conservation
Takudzwa C. Madzivanzira, Adroit T. Chakandinakira, Chipo P. Mungenge, Gordon O'Brien, Tatenda Dalu, Josie South
Summary: The invasion of the Australian redclaw crayfish is a major concern for freshwater ecologists, environmental managers, policy makers, and local communities in southern Africa. Crayfish affect fishing catch through partial consumption of fish caught on static gillnets, which has socio-economic implications. This study tested the effectiveness of misdirection traps to prevent fish spoilage and gear damage caused by crayfish, providing a pragmatic management initiative to reduce socio-economic fishery costs.
MANAGEMENT OF BIOLOGICAL INVASIONS
(2023)
Article
Biodiversity Conservation
Takudzwa C. Madzivanzira, Adroit T. Chakandinakira, Chipo P. Mungenge, Gordon O'Brien, Tatenda Dalu, Josie South
Summary: The threats posed by invasive crayfish species are a major concern in invaded regions, and continued research on adaptive strategies to cope with the invasion is imperative. This study tested the effectiveness of misdirection traps in preventing fish spoilage and gear damage by crayfish in Lake Kariba, Zimbabwe.
MANAGEMENT OF BIOLOGICAL INVASIONS
(2023)
Review
Environmental Sciences
J. Robert Britton, Abigail J. Lynch, Helge Bardal, Stephanie J. Bradbeer, Julie A. Coetzee, Neil E. Coughlan, Tatenda Dalu, Elena Tricarico, Belinda Gallardo, Mark Lintermans, Frances Lucy, Chunlong Liu, Julian D. Olden, Rajeev Raghavan, Eleri G. Pritchard
Summary: The Emergency Recovery Plan for freshwater biodiversity emphasizes the importance of addressing nonnative species as one of the primary actions to protect freshwater biodiversity. Prevention of introductions is the most effective management measure, while early detection and rapid reaction can prevent establishment and dispersal. If a species becomes invasive, control and containment measures can minimize its spread and impact.
ENVIRONMENTAL REVIEWS
(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.
