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Article
Ecology
Jennifer L. Goff et al.
Summary: Multiple heavy metal contamination is a common global problem that can disrupt microbial biogeochemical cycling. However, there is a lack of studies on the effects of combinations of heavy metals on bacteria. In this study, we assessed the impact of eight metal contaminants on cell processes using a multiomics approach. The combination of metals had unexpected effects on cell physiology, including a disruption of iron homeostasis and decreased activity of important enzymes. This research highlights the need for multi-metal studies to understand the impacts of complex contaminants on microbial systems.
Article
Green & Sustainable Science & Technology
Haishuang Wang et al.
Summary: The coexistence and distribution of nitrate and vanadate co-pollutants in groundwater have become a pressing environmental issue. Recent advancements in the combination of activated sludge and agro-industrial waste have improved co-pollution removal, but have overlooked the biological effects of microorganisms in the waste, limiting understanding of the treatment mechanism.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Dingmei Wang et al.
Summary: This study aims to investigate and compare the effects of different rich-N sources (chicken manure, cattle manure, and urea) on the humification process of mushroom residues during composting. The addition of rich-N sources accelerated the humification process, with the chicken manure treatment showing the highest level of humification.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Haishuang Wang et al.
Summary: This study quantified the electron transfer, substance transfer, and metabolic pathways in the nitrate and V(V) co-contamination system under oligotrophic condition. Results showed the re-oxidation process of V(IV) and the electron contribution ratio of NO3--N -NO2--N and V(V) -V(IV) reduction. In addition, the study found enhanced utilization of intracellular reserve carbon source and enzymes in the transport chain in oligotrophic microbiology niche.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Liuliu Li et al.
Summary: This study demonstrates for the first time that pyrrhotite can successfully bioreduce toxic selenate under anaerobic conditions. Complete removal of selenate was achieved in a continuous column experiment using indigenous microbial consortium and pyrrhotite. The study also revealed the importance of hydrochemistry and hydrodynamics in the performance of selenate removal.
Article
Engineering, Environmental
Ling-Dong Shi et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Shuchang Huang et al.
Summary: The effects of polystyrene microplastics (MPs) and nanoplastics (NPs) on microbiomes and functional genes in activated sludge systems were investigated. The results showed that low concentrations (1 mg/L) of MPs and NPs had minimal impacts on nitrogen removal performance, while high concentrations (20 and 100 mg/L) decreased total nitrogen removal efficiency. The presence of MPs and NPs induced cytotoxicity and reduced the abundance of denitrifiers and functional genes involved in nitrogen transformation processes, resulting in decreased nitrogen removal efficiency. This study provides important insights into the response of microbial communities and nitrogen conversion processes to micro(nano)plastic disturbance in activated sludge systems.
Article
Engineering, Environmental
Wenyue Yan et al.
Summary: This study presents a novel approach for the synchronous bio-elimination of V(V) and NH4+-N in a S0-based autotrophic system. Through the construction of microbial genomes and the annotation of functional genes, symbiotic interactions involved in sulfur, nitrogen, and vanadium transformation were revealed, resulting in the efficient removal of V(V) and NH4+-N.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Jianing Liu et al.
Summary: In recent years, water contaminated with vanadium has become a global environmental problem due to economic and industrial development. Various techniques for vanadium removal have been discussed with their advantages and limitations, along with analysis of influencing factors and mechanisms. Research perspectives aim to improve the capacity for vanadium removal.
Article
Environmental Sciences
Haishuang Wang et al.
Summary: The coexistence of nitrate and V(V) in groundwater poses potential threats to the environment and public health. For the first time, it has been shown that denitrification and V(V) bio-reduction can occur simultaneously using corn straw as the carbon and energy source. Corn straw has been proven to be efficient in denitrification and V(V) bio-reduction in various environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Olivia E. Mosley et al.
Summary: The nitrogen cycle plays a crucial role in aquatic ecosystems, including the subsurface. However, the diversity of nitrogen transformations in these environments is not well understood. This study investigated how nitrogen cycling microorganisms respond to different groundwater chemistries. The results showed that regardless of site-specific conditions, nitrogen cycling mechanisms were prevalent and highly redundant in groundwater communities. The study also revealed the presence of oxic-anoxic interfaces and potential synergistic interactions between microorganisms at these interfaces. The findings provide insights into cooperative relationships in groundwater communities and the complexity of metabolic mechanisms leading to nitrogen loss.
Article
Engineering, Environmental
Geng Yan et al.
Summary: This study identified microorganisms responsible for vanadate reduction in contaminated river sediments and predicted their metabolic mechanisms using DNA-stable isotope probing and metagenomic-binning analysis.
Article
Engineering, Environmental
Baogang Zhang et al.
Summary: This study demonstrates for the first time the potential of a Gram-positive bacterium, Lactococcus raffinolactis, in effectively reducing V(V) contamination. The reduction process involves both intracellular and extracellular mechanisms, with nitrite reductase playing a key role. The study also highlights the importance of oxidative stress tolerance and extracellular polymeric substances in V(V) bio-reduction.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Liting Hao et al.
Summary: This study demonstrates that using pine sawdust as a sole carbon source, combined with the addition of medical stone and phosphate rock, can effectively enhance microbial removal efficiency of V(V). Microbiological analysis showed that certain microbes contribute to the reduction of V(V) and specific functional species aid in the degradation of sawdust. The research provides a potential approach for microbially removing V(V) from contaminated groundwater and managing agricultural and forestry waste.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Chao He et al.
Summary: This study demonstrates that mackinawite can successfully bioreduce V(V) in aquifer under anaerobic conditions. Biotic activity was identified as the major contribution to V(V) transformation.
Review
Environmental Sciences
Haishuang Wang et al.
Summary: This review focuses on nitrate removal in aquatic environments through heterotrophic denitrification, analyzing and comparing the denitrification process, electron transfer, denitrifying and hydrolyzing microorganisms among different carbon sources. The study reveals commonness and characteristics of denitrification processes with various carbon sources, providing theoretical support and technical guidance for further improvement of denitrification technologies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Baogang Zhang et al.
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
Xiaoxu Sun et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Environmental
Jiaxin Shi et al.
Article
Environmental Sciences
Zhili He et al.
ENVIRONMENT INTERNATIONAL
(2020)
Review
Microbiology
Marcel M. M. Kuypers et al.
NATURE REVIEWS MICROBIOLOGY
(2018)
Article
Engineering, Environmental
Yufeng Jiang et al.
Article
Engineering, Environmental
Chun-Yu Lai et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2016)
Review
Geochemistry & Geophysics
Jen-How Huang et al.
Article
Engineering, Environmental
Alexis P. Yelton et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2013)
Article
Engineering, Environmental
Yuting Pan et al.
Review
Biotechnology & Applied Microbiology
David Richardson et al.
TRENDS IN BIOTECHNOLOGY
(2009)
Review
Engineering, Chemical
RR Moskalyk et al.
MINERALS ENGINEERING
(2003)
