Article
Engineering, Environmental
Hoang Phuc Trinh, Sang-Hoon Lee, Garam Jeong, Hyeokjun Yoon, Hee-Deung Park
Summary: Mainstream anammox processes face challenges such as difficulty in out-selection of nitrite-oxidizing bacteria, high organic carbon to nitrogen ratio, retention of anammox bacteria, and influence of high concentrations of ammonia and nitrite compounds. Efficient strategies are necessary to manage high carbon to nitrogen ratios, improve performance in low-intensity wastewater, and retain anammox bacteria for widespread application in full-scale WWTPs. Key elements in the design, operation, and maintenance of mainstream anammox processes in full-scale WWTPs are also suggested.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Xin Xin, BaiXue Li, Xin Liu, Wenyu Yang, Qin Liu
Summary: In this study, a novel coupling process (SAPD-A) combining sulfide autotrophic partial denitrification (SAPD) and anaerobic ammonium oxidation (Anammox) was developed using an anaerobic sequencing batch reactor (ASBR). The process consisted of two stages, with the SAPD process successfully started by gradually increasing the inflow of nitrate and sulfide. The SAPD-A process achieved high removal efficiencies of nitrate, ammonium, and total nitrogen, and was dominated by Anammox for nitrogen removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biotechnology & Applied Microbiology
Maartje A. H. J. van Kessel, Karin Stultiens, Arjan Pol, Mike S. M. Jetten, Boran Kartal, Huub J. M. Op den Camp
Summary: The study investigated the simultaneous activity of an anaerobic methane- and ammonia-oxidizing coculture under oxygen limitation, indicating the feasibility of combining N-damo and anammox activity for methane and ammonia removal. This research provides valuable insights for the potential application of these microbial processes in wastewater treatment to address eutrophication and greenhouse gas emissions.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Review
Environmental Sciences
Xuan Wang, Guo-Jun Xie, Ning Tian, Cheng-Cheng Dang, Chen Cai, Jie Ding, Bing-Feng Liu, De-Feng Xing, Nan-Qi Ren, Qilin Wang
Summary: This review comprehensively analyzes the redox cycles of manganese in the environment, and discusses its importance in greenhouse gas mitigation, nutrient loading, microbial bioremediation, and global biogeochemical cycles. The oxidation and reduction of manganese occur cyclically and simultaneously in water, soil, and sediment environments, coupled with microorganisms, providing promising opportunities for the remediation of contaminated environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Huan Li, Teng Cai, Yijing Gao, Qicai Dai, Xinyu Liu, Xue Chen, Xueqin Lu, Guangyin Zhen
Summary: An upflow blanket filter (UBF) reactor with porous fixed cylinder carriers was used to investigate the formation mechanism of anammox granules. The UBF achieved the highest nitrogen removal efficiency of 93.19 +/- 3.39% at a nitrogen loading rate of 3.6 kg-N/m3/d and HRT of 2 h. Tryptophan-like proteins were found to be vital for granule formation, and the analysis of 16s rRNA revealed the important role of SBR1031 in cell aggregation. The anammox granules developed a two-layered spatial structure consisting of an outer-layer of ammonia oxidizing bacteria and an inner-core of anaerobic ammonia oxidizing bacteria. Introduction of porous fixed cylinder carriers effectively prevented biomass loss and flotation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Tao Liu, Shihu Hu, Zhiguo Yuan, Jianhua Guo
Summary: The spatial distribution of microorganisms in a methane-based membrane biofilm reactor (MBfR) was experimentally revealed in this study, showing the dominance of anammox bacteria, nitrite/nitrate-dependent anaerobic methane oxidation (n-DAMO) bacteria, and n-DAMO archaea in different layers of the biofilm. It was found that microorganisms in the outer layer preferred substrates from wastewater, while those in the inner layer utilized substrates from the biofilm substratum. This study provides insights into microbial stratification in biofilm systems and potential applications of methane-based MBfRs in sewage treatment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Rahil Fofana, Michael Parsons, Megan Bachmann, Kimberly Jones, Jeseth Delgado Vela, Benay Akyon, Wenjun Liu, Stephanie Klaus, Christine deBarbadillo, Charles Bott, Haydee De Clippeleir
Summary: Partial denitrification-anammox (PdNA) technology has the potential to improve nitrogen removal efficiency and reduce costs. The study found that methanol is the preferred carbon source due to its higher PdNA efficiency and rate. However, achieving low effluent total nitrogen limits in PdNA filters primarily depends on the appropriate ratio of ammonium to NOx in the upstream activated sludge.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Biodiversity Conservation
Yanzhong Yao, Bingbing Han, Bin Liu, Yini Wang, Xiaoxuan Su, Lihua Ma, Tong Zhang, Shuli Niu, Xinping Chen, Zhaolei Li
Summary: Soil anammox is an environmentally friendly method to remove reactive nitrogen without producing nitrous oxide. However, the lack of parameters for anammox rates on a global scale hinders its incorporation into earth system models, limiting accurate projections for nitrogen cycling.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Xiaojing Zhang, Nan Zhang, Denghui Wei, Hongli Zhang, Yali Song, Yongpeng Ma, Hongzhong Zhang
Summary: The study found that the antibiotic sulfamethoxazole had a slight inhibitory effect on the Anammox process, but denitrification could be induced to help the Anammox community resist the biotoxicity, thus improving total nitrogen removal efficiency.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Review
Environmental Sciences
Xin Tan, Guo-Jun Xie, Wen-Bo Nie, De-Feng Xing, Bing-Feng Liu, Jie Ding, Nan-Qi Ren
Summary: Feammox is a novel pathway for ammonium (NH4 (+)) oxidation and nitrogen cycle, leading to significant loss of nitrogen in natural environments. Various Feammox pathways, end products, and interactions within microbial communities have been revealed by researchers, offering alternative processes for wastewater treatment. However, substantial variations exist among different studies in terms of key functional microorganisms.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Agricultural Engineering
Linqin Tang, Chengyuan Su, Cuiping Fan, Ruting Li, Yuchen Wang, Shu Gao, Menglin Chen
Summary: The effects of PFOA on the nitrogen removal performance, microbial community, and functional genes in an ABR were investigated. The results showed that increasing PFOA concentration decreased the removal efficiencies of NH4+-N and NO2--N, as well as the relative abundance of specific microbial species and the expression of anammox genes in the sludge.
BIORESOURCE TECHNOLOGY
(2022)
Article
Microbiology
Samuel J. Bryson, Kristopher A. Hunt, David A. Stahl, Mari-Karoliina H. Winkler
Summary: This study investigated the differences in microbial community structure and nitrogen transforming functions under one-stage and two-stage reactor configurations. It was found that oxygen availability and gradient in one-stage systems provided a larger niche space for heterotrophic populations compared to the homogeneous anoxic environment in two-stage systems, impacting the competition for carbon substrates between denitrifying and DNRA heterotrophs.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Yun Li, Nan Cui, Keng Xuan, Dan Xu, Dongliang Wang, Chaoming Li, Zebing Li, Yufan Wang
Summary: This study evaluated the start-up performance and process kinetics of a UASB-Anammox reactor with nitritation sludge at low substrate concentration. It was found that the reactor could be successfully started by inoculating with a mixture of nitritation sludge and anaerobic ammonium oxidation granular sludge, achieving good nitrogen removal. The analysis using microbial growth kinetics models and process kinetics provided useful parameters for predicting nitrogen removal performance, operation management, and control of similar reactors.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Environmental Sciences
Hussein E. Al-Hazmi, Xi Lu, Dominika Grubba, Joanna Majtacz, Michael Badawi, Jacek Makinia
Summary: This review highlights the importance of understanding microbial metabolism in anammox-mediated systems and their potential applications in sustainable nitrogen removal from wastewater. Various processes, including PN-A, SNAD, PD-A, and DAMO-A, have shown efficient N removal in different wastewater treatment scenarios. The review also discusses the production of N2O in anammox-based processes and how it relates to certain bacteria. Additionally, mathematical models and promising NO3- reduction technologies are discussed. Overall, this review provides valuable insights into sustainable N removal in anammox-mediated systems, encouraging further research in this field.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Will A. Overholt, Susan Trumbore, Xiaomei Xu, Till L. Bornemann, Alexander J. Probst, Markus Krueger, Martina Herrmann, Bo Thamdrup, Laura A. Bristow, Martin Taubert, Valerie F. Schwab, Martin Hoelzer, Manja Marz, Kirsten Kuesel
Summary: The terrestrial subsurface contains most freshwater reserves and prokaryotic biomass. A study estimated carbon fixation rates in a carbonate aquifer using a C-14-labelling technique and found similarities to those in oligotrophic marine surface waters. The study suggests the importance of in situ carbon fixation in subsurface ecosystem processes.
Review
Engineering, Environmental
Bing Han, Anthony J. Weatherley, Kathryn Mumford, Nanthi Bolan, Ji-Zheng He, Geoffrey W. Stevens, Deli Chen
Summary: Water and soil contamination by PTEs poses a critical threat to the global ecosystem and human health. Naturally abundant resources, such as bentonite and zeolite, offer advantages over manufactured materials for environmental remediation. Despite facing challenges in performance and cost, recent studies provide a strong foundation for remediation processes, with effective modification strategies offering potential for wider practical applications.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Ecology
Yongxin Lin, Guiping Ye, Hang-Wei Hu, Ping Yang, Song Wan, Mengmeng Feng, Zi-Yang He, Ji-Zheng He
Summary: This study investigated the impact of plant species on the abundance, diversity, and community structure of comammox Nitrospira. The findings revealed that plant species play a critical role in driving the distribution of comammox Nitrospira, with different plant species influencing different clades of comammox Nitrospira. Additionally, plant invasion can alter the community structure of comammox Nitrospira. Soil depth also has some influence on the community structure of comammox Nitrospira, although weaker than the effect of plant species.
Review
Environmental Sciences
Chaoyu Li, Zi-Yang He, Hang-Wei Hu, Ji-Zheng He
Summary: This review summarizes the recent findings on the biogeographical distribution and ecological preference of comammox Nitrospira in soil, as well as their responses to nitrogen application and ecological niche in the habitat. The studies suggest that comammox Nitrospira are not strictly oligotrophic but also have a broader ecological niche breadth.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Yongxin Lin, Chunjian Duan, Jianbo Fan, Hang-Wei Hu, Zi-Yang He, Guiping Ye, Ji-Zheng He
Summary: This study found that 1-octyne and PTIO can significantly inhibit the growth of comammox Nitrospira, but have no significant effects on their community structure.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Biotechnology & Applied Microbiology
Li Tang, Kai Xue, Zhe Pang, Lili Jiang, Biao Zhang, Weijing Wang, Shiping Wang, Zhihong Xu, Yichao Rui, Lei Zhong, Rongxiao Che, Tong Li, Shutong Zhou, Kui Wang, Jianqing Du, Zongsong Wang, Xiaoyong Cui, Yanbin Hao, Yanfen Wang
Summary: This study investigates the spatial patterns of rare and abundant fungal taxa in alpine grassland soils on the Qinghai-Tibetan plateau. The results show that rare fungal taxa have a similar biogeographic pattern to abundant fungal taxa in these soils. Additionally, the composition of plant communities is strongly related to the composition of rare fungal taxa. Overall, this study significantly enhances our understanding of the biogeography and ecology of rare fungal taxa in alpine grassland soils.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Ecology
Guiyao Zhou, Manuel Esteban Lucas-Borja, Shengen Liu, Hang-Wei Hu, Ji-Zheng He, Xinxin Wang, Zheng Jiang, Xuhui Zhou, Manuel Delgado-Baquerizo
Summary: This study provides new insights into the patterns and functional trade-offs in the multidimensional rewilding of Mediterranean forests, highlighting the importance of biodiversity for long-term restoration efforts.
FUNCTIONAL ECOLOGY
(2023)
Article
Engineering, Environmental
Li Bi, Li-Li Han, Shuai Du, Dan-Ting Yu, Ji-Zheng He, Li-Mei Zhang, Hang-Wei Hu
Summary: Viruses can influence the composition and functions of host communities, as well as enhance host pathogenicity by transporting virus-encoded virulence genes. The contribution of viral communities to the dissemination of virulence genes across various biomes is largely unknown. In this study, we identified a wide variety of virulence genes in soil viruses, suggesting their potential role in driving the pathogenesis of their hosts in terrestrial ecosystems.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Ecology
Kunkun Fan, Haiyan Chu, David J. J. Eldridge, Juan J. J. Gaitan, Yu-Rong Liu, Blessing Sokoya, Jun-Tao Wang, Hang-Wei Hu, Ji-Zheng He, Wei Sun, Haiying Cui, Fernando D. D. Alfaro, Sebastian Abades, Felipe Bastida, Marta Diaz-Lopez, Adebola R. R. Bamigboye, Miguel Berdugo, Jose L. Blanco-Pastor, Tine Grebenc, Jorge Duran, Javier G. G. Illan, Thulani P. P. Makhalanyane, Arpan Mukherjee, Tina U. U. Nahberger, Gabriel F. F. Penaloza-Bojaca, Cesar Plaza, Jay Prakash Verma, Ana Rey, Alexandra Rodriguez, Christina Siebe, Alberto L. L. Teixido, Pankaj Trivedi, Ling Wang, Jianyong Wang, Tianxue Yang, Xin-Quan Zhou, Xiaobing Zhou, Eli Zaady, Leho Tedersoo, Manuel Delgado-Baquerizo
Summary: In urban greenspaces, soil biodiversity is positively correlated with multiple ecosystem functions, while plant diversity indirectly influences multifunctionality. Conserving soil biodiversity is crucial for supporting multiple dimensions of ecosystem functioning in urban ecosystems.
NATURE ECOLOGY & EVOLUTION
(2023)
Review
Microbiology
Minxiao Ma, Paul W. J. Taylor, Deli Chen, Niloofar Vaghefi, Ji-Zheng He
Summary: Tomato is the second most cultivated vegetable crop globally and is grown in temperate climates. Soilborne pathogens, including bacteria, fungi, nematodes, and oomycetes, have serious impacts on tomato yield and quality. Biological control, with its high efficiency, target-specificity, sustainability, and public acceptance, has become a popular method for managing these diseases.
Article
Environmental Sciences
Lifei Yang, Wenjia Han, Wei Zhao, Chenggang Gu, Zhihong Xu, Xin Jiang
Summary: This study explored the adsorption behaviors and mechanisms of chlorobenzene compounds (MCB, 1,2-DCB, PeCB, and HCB) on corn straw-based biochar. The results showed that the biochar preferably absorbed highly chlorinated CBs (PeCB and HCB) over low-chlorinated CBs (MCB and 1,2-DCB). The molecular orbitals, electron cloud distribution, and configuration of the CBs were calculated to investigate the adsorption mechanisms.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Soil Science
Song Wan, Yongxin Lin, Jianbo Fan, Hang-Wei Hu, Jinbo Zhang, Sheng-Sheng Jin, Milin Deng, Christoph Mueller, Ji-Zheng He
Summary: Long-term lime and manure amendment can have different impacts on N2O emissions due to their differential effects on autotrophic and heterotrophic nitrification. Lime amendment increased N2O emissions by promoting autotrophic nitrification, while manure amendment decreased N2O emissions by reducing both heterotrophic and autotrophic nitrification. These results provide important insights for the sustainable management of acidic arable soils.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Soil Science
Linfang Wu, Bingzhang Zou, Sirong Wang, Luhong Zhou, Yong Zheng, Zhiqun Huang, Ji-Zheng He
Summary: Multispecies restoration is a feasible approach to tackle the decline in ecosystem services provided by monocultures. However, limited understanding exists on how multispecies restoration influences microbial catabolic and anabolic pathways in coniferous monocultures. This study assesses the microbial resource limitation and carbon use efficiencies in topsoil and subsoil after multispecies restoration, revealing trade-offs between nutrient acquisition and carbon use efficiency.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Correction
Multidisciplinary Sciences
Yu-Rong Liu, Marcel G. A. van der Heijden, Judith Riedo, Carlos Sanz-Lazaro, David J. J. Eldridge, Felipe Bastida, Eduardo Moreno-Jimenez, Xin-Quan Zhou, Hang-Wei Hu, Ji-Zheng He, Jose L. Moreno, Sebastian Abades, Fernando Alfaro, Adebola R. R. Bamigboye, Miguel Berdugo, Jose L. Blanco-Pastor, Asuncion de los Rios, Jorge Duran, Tine Grebenc, Javier G. G. Illan, Thulani P. P. Makhalanyane, Marco A. A. Molina-Montenegro, Tina U. U. Nahberger, Gabriel F. F. Penaloza-Bojaca, Cesar Plaza, Ana Rey, Alexandra Rodriguez, Christina Siebe, Alberto L. L. Teixido, Nuria Casado-Coy, Pankaj Trivedi, Cristian Torres-Diaz, Jay Prakash Verma, Arpan Mukherjee, Xiao-Min Zeng, Ling Wang, Jianyong Wang, Eli Zaady, Xiaobing Zhou, Qiaoyun Huang, Wenfeng Tan, Yong-Guan Zhu, Matthias C. C. Rillig, Manuel Delgado-Baquerizo
NATURE COMMUNICATIONS
(2023)
Article
Forestry
Yuting Yan, Danting Yu, Lili Han, Chengyu Yuan, Jizheng He
Summary: As the most abundant organisms on earth, viruses play a crucial role in shaping bacterial communities, mediating gene transfer, and promoting biogeochemical cycles. However, soil viruses are still understudied, and there is a lack of information about community construction, virus-host interactions, and ecological functions. In this study, we investigated viral and bacterial communities in different land use types in China and found that viral communities differed significantly between land use types. We also identified abundant auxiliary metabolic genes in the viral genomes, suggesting that viruses could regulate bacterial carbon cycling processes.
Article
Ecology
Thi Bao-Anh Nguyen, Michael Bonkowski, Kenneth Dumack, Qing-Lin Chen, Ji-Zheng He, Hang-Wei Hu
Summary: This study investigated the response of antibiotic resistance genes (ARGs) in soil to predation pressure from protists. The results showed that an increase in protistan predation pressure was associated with higher abundance and diversity of ARGs in the soil. High concentrations of protists significantly increased the abundance of genes encoding multidrug and tetracycline resistance, as well as the abundance of certain bacterial genera.