Article
Engineering, Environmental
Chunhua He, Xuesong Ren, Guoqing Xu, Zhiqiang Huang, Yulan Wang, Zhenhu Hu, Wei Wang
Summary: Phenol and ammonia are common pollutants in industrial wastewaters. The study successfully started and operated a single-stage partial nitritation /anammox reactor treating phenol-ammonia wastewater, achieving total nitrogen and COD removal efficiencies of around 73.0% and 79.5%. The anammox bacteria adapted to phenol condition and remained stable activity after 60 days of operation.
WATER ENVIRONMENT RESEARCH
(2021)
Article
Engineering, Environmental
Zhaopeng Qu, Jin Li, Zhi Hu, Wenzong Liu, Aijie Wang
Summary: Currently, conventional biological nitrogen removal processes face challenges in removing ammonium from saline wastewater. This study successfully utilized marine anammox bacteria in a microbial electrolytic cell to convert NH4+-N to N2. In addition, the application of voltage increased microbial diversities at the electrode surface and promoted the formation of electrode biofilm.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Ecology
Ya-Jou Chen, Pok Man Leung, Perran L. M. Cook, Wei Wen Wong, Tess Hutchinson, Vera Eate, Adam J. Kessler, Chris Greening
Summary: This study investigated the relationships between microbial community composition and biogeochemical processes in coastal sediments exposed to varying levels of hydrodynamic disturbance. The findings suggest that hydrodynamic disturbance plays a critical role in controlling microbial community assembly and biogeochemical processes in coastal sediments. The study provides insights into the mechanisms underlying the interactions between microbial communities and biogeochemical dynamics in these unique environments.
Article
Agricultural Engineering
Yao Yuan, Zhen Zhou, Jie Jiang, Kaichong Wang, Siqi Yu, Jiaxin Qiang, Qiang Ming, Ying An, Jianfeng Ye, Deli Wu
Summary: The effects of salinity level and gradient on partial nitrification performance, sludge properties, and microbial activities were investigated using partial nitrification membrane bioreactors. Higher salinity levels led to increased nitrite accumulation rate and ammonia removal, as well as the differentiation of AOBs and nitrite-oxidizing bacteria. Salt gradients played a significant role in the evolution of microbial communities towards salt-tolerant bacteria.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Gang Tang, Xiaolin Li, Zi Wang, Kai Wang, Binrui Li, Chongxuan Liu, Xing Zheng
Summary: The study investigated the dynamics of DOM and SMP in A(2)O units using fluorescence analysis, revealing the influence of temperature and influent quality on treatment efficiency and DOM quality. Strategies considering seasonal dynamics of DOM/SMP were recommended for strict effluent regulation and sustainability of water bodies. The fluorescence-derived information showed potential in indicating quantified DOM properties.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Microbiology
Qi-Yun Liang, Jin-Yu Zhang, Daliang Ning, Wen-Xing Yu, Guan-Jun Chen, Xuanyu Tao, Jizhong Zhou, Zong-Jun Du, Da-Shuai Mu
Summary: Inhibiting sulfate-reducing bacteria (SRB) has shown various effects on microbial community properties and coexistence patterns, indicating the importance of SRB in organic matter (OM) degradation. Suppression of SRB resulted in decreased relative abundances of several bacterial families and altered network and community assembly processes. These findings highlight the essential role of SRB in OM degradation.
Editorial Material
Microbiology
Kenneth Wasmund
Summary: Sulfate-reducing microorganisms (SRM) play a crucial role in global sulfur and carbon cycles, especially in anoxic marine sediments. They consume fermentation products and hydrogen, affecting microbial communities, particularly members of the Marinilabiliales. This study provides new insights into the ecological networks and community assembly in marine sediment microbes, highlighting the importance of SRM activity in ecosystem functions.
Review
Ecology
Brett J. Baker, Kathryn E. Appler, Xianzhe Gong
Summary: Metagenomic approaches are transforming our understanding of microbial communities in marine sediments, revealing new lineages with unknown ecological roles and distinct phyla. Uncultured bacteria and archaea in sediments play key roles in mediating previously undescribed steps in carbon and nutrient cycling, advancing our knowledge of global ocean processes.
ANNUAL REVIEW OF MARINE SCIENCE, VOL 13, 2021
(2021)
Article
Agricultural Engineering
Angel Estevez-Alonso, Mark C. M. van Loosdrecht, Robbert Kleerebezem, Alan Werker
Summary: Research has shown that controlling the dissolved oxygen concentration in microbial community-based PHA production can reduce the activity of nitrifying bacteria while promoting PHA production. By utilizing the oxygen provided by nitrifying bacteria to supply the nitrate required for PHA production, maximum PHA production rates can be maintained.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Jessica R. Zehnpfennig, Colleen M. Hansel, Scott D. Wankel, Cody S. Sheik, Dean J. Horton, Carl H. Lamborg, Deric R. Learman
Summary: This study reveals the role of light (varying with time and depth) in shaping the photosynthetic microbial community activity in the surface ocean, and further demonstrates that this diel regulation of photosynthesis is decoupled from the activity of the nitrifying microbial community in deeper and darker waters.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Xiaowei Peng, Hong Su, Renjie Cai, Yejun Han
Summary: Microorganisms in marine sediments show promising potential for treating saline wastes due to their salt tolerance. The microbial communities in marine sediments have been found to exhibit excellent anaerobic digestion capabilities at various salinities, including high levels. The differences in bacterial taxonomic richness, nitrogen and sulfur cycle-related members, animal parasites, and archaeal compositions between marine sediment and wastewater plant inoculums highlight the unique microbial resources present in marine sediments for waste treatment applications.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Xueping Tian, Jingtao Zhao, Jun Huang, Guoke Chen, Yonggui Zhao
Summary: The metabolic process of aerobic granular sludge (AGS) treating piggery wastewater with high concentrations of carbon and nitrogen was elucidated through a combined analysis of microbial community, denitrification genes, and mathematical model calculations. The dominant microorganisms in AGS had potentials of various metabolic activities, with aerobic denitrification process being dominant. The study also revealed the resistance of rapid organic substrates storage in AGS during feast phase against high strength wastewater, providing carbon and energy sources in the famine phase.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Microbiology
Peter Q. Fischer, Irene Sanchez-Andrea, Alfons J. M. Stams, Laura Villanueva, Diana Z. Sousa
Summary: Methanol is a ubiquitous compound in marine sediments, serving as a carbon and energy source for various microorganisms that compete for it using different biochemical pathways. Current knowledge provides insight into the sources of methanol, the ecology of methanol-utilizing microorganisms, and their metabolism, but the unknown diversity of methanol utilizers in marine sediments remains to be explored through metagenomic analysis.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Agricultural Engineering
Guangchao Si, Bing Liu, Yingrui Liu, Tao Yan, Dong Wei
Summary: The study aims to evaluate the impact of light on the functioning of a partial nitrification algal-bacterial granular bioreactor and its nitrite accumulation mechanism. The results show that light plays a vital role in promoting the removal of ammonia nitrogen, enhancing the activities of both ammonia-oxidizing bacteria and nitrite-oxidizing bacteria, and facilitating the formation of algal-bacterial granular sludge.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Fangyuan Jiang, Yueling Qi, Xianyang Shi
Summary: This study investigated the effects of different carbon sources on the denitrification performance, soluble microbial products (SMPs), and microbial community in lab-scale denitrification biofilters. The results showed that the denitrification efficiency varied with different carbon sources and the components of SMPs had varying effects on denitrification.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)