Article
Engineering, Environmental
Sandrine Veloso, David Amouroux, Laurent Lanceleur, Christine Cagnon, Mathilde Monperrus, Jonathan Deborde, Cristiana Cravo Laureau, Robert Duran
Summary: The fluctuation of environmental conditions in estuaries drives the structure of microbial communities, which play a key role in ecosystem functioning. In this study, the microbial communities in the Adour Estuary were investigated using gene sequencing and chemical analysis. The results showed a strong seasonal organization and spatial distribution of microbial communities, influenced by biogeochemical parameters and micropollutants. Network analysis revealed specific modules linked to pollutant types, providing important insights into estuarine microbial ecology.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Ansaf Karim, Amritanshu Shriwastav
Summary: The presence of antibiotics in water and wastewater is a global environmental concern. This study integrated a sonophotocatalytic oxidation process with an aerobic sequencing batch reactor (SBR) for the comprehensive removal of a mixture of antibiotics. The optimized conditions achieved maximum pollutant removal and the combined treatment system showed high removal rates for COD and NH4+-N.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Rafael Marcal Ferraz, Josiel Martins Costa, Livia Martins Verola, Giselle Patricia Sancinetti, Renata Piacentini Rodriguez
Summary: This study evaluated the efficiency of anaerobic sequencing batch reactors in treating sulfate-rich wastewater using different inocula sources and immobilization methods. The results showed high sulfate removal rates in both lactate and ethanol phases, with an increase in sulfate-reducing bacteria and methanogenic Archaea abundance. Understanding the effects of electron donors, inoculum origin, and immobilization on sulfate reduction and microbial community development can aid in establishing strategies for bioremediation of acid mine drainage.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Yun Peng, Pingjin Yang, Xiaoming Wang, Yanyan Zhang, Xuya Peng, Lei Li
Summary: The study reveals that deterministic processes may play a larger role in shaping the microbial community than stochastic processes regardless of the level and mode of TAN stress. Under high ammonia stress, acetogens are inhibited, leading to deterioration of AD process function.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Xiaoguang Liu, Jinchen Chen, Ding-Hsiang Lin, Spyros G. Pavlostathis
Summary: This study assessed the long-term effect of peracetic acid (PAA) solution on the anaerobic treatment of poultry processing wastewater. Results showed that direct addition of PAA solution completely inhibited biogas production and required a relatively long incubation time for recovery.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Environmental Sciences
Qingdan Wu, Dongsheng Zou, Xiaochen Zheng, Fen Liu, Longcheng Li, Zhihua Xiao
Summary: This review summarizes the effects of different antibiotics on anaerobic digestion of sewage sludge, including methane and VFAs production, and their impact on bio-transformation processes and microbial community structure. Research results show that antibiotics at environmentally relevant concentrations mainly reduce biogas production by inhibiting methanogenic processes, while a few antibiotics improve biogas production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Shaona Wang, Kang Du, Rongfang Yuan, Huilun Chen, Fei Wang, Beihai Zhou
Summary: The study found that sulfonamide antibiotics have significant impacts on the digestion performance and microbial community structure in anaerobic digestion processes, particularly inhibiting hydrolytic acidification and methane production. The inhibitory effects varied among the different sulfonamide antibiotics, indicating diverse mechanisms of action.
ENVIRONMENTAL ENGINEERING RESEARCH
(2021)
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
Environmental Sciences
Jin-Jin Fu, Dong-Qi Huang, Yu-Hui Bai, Yang-Yang Shen, Xia-Zhen Lin, Yong Huang, Yi-Rong Ling, Nian-Si Fan, Ren-Cun Jin
Summary: The study demonstrates the resistance of the anammox process to multiple antibiotics by producing antibiotic resistance genes and secreting extracellular polymeric substances. Molecular docking simulations reveal potential binding sites between ammonium transporter and different antibiotics, supporting the stable operation of the anammox system under antibiotic stress.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Biotechnology & Applied Microbiology
Apoorva Upadhyay, Andrey A. A. Kovalev, Elena A. A. Zhuravleva, Dmitriy A. A. Kovalev, Yuriy V. V. Litti, Shyam Kumar Masakapalli, Nidhi Pareek, Vivekanand Vivekanand
Summary: Biogas production involves complex microbial populations in anaerobic digesters. Understanding these microbial populations through metagenomics analysis can help optimize and enhance anaerobic digestion processes. With advancements in metagenomic sequencing technologies, such as next generation sequencing and high-throughput sequencing, the study of microbial dynamics in anaerobic digestion has been revolutionized. This review provides an overview of the basic processes of metagenomics research, and discusses various bioinformatics approaches for analyzing microbial communities and characterizing metagenomes.
FERMENTATION-BASEL
(2023)
Article
Engineering, Environmental
Wen-Hsing Chen, Yun-Ting Luo, Jih-Gaw Lin, Yu-Tzu Huang
Summary: This study investigated the microbial community and energy requirements of an anaerobic packed bed reactor treating low-strength synthetic wastewater under different HRTs and temperatures. The results showed that as the HRT and temperature decreased, COD removal and methane yield also decreased. The microbial community with low relative abundances of archaea and facultative bacteria played a significant role in the reactor's efficiency.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Biotechnology & Applied Microbiology
Eva Maria Prem, Mira Mutschlechner, Blaz Stres, Paul Illmer, Andreas Otto Wagner
Summary: Lignin intermediates may hinder anaerobic mineralisation, with phenyl acids serving as early indicators. The length and structure of side chains influence the methanogenic system, while specific microbial genera are associated with phenyl acid formation.
BIOTECHNOLOGY FOR BIOFUELS
(2021)
Review
Microbiology
Simona Bartkova, Anne Kahru, Margit Heinlaan, Ott Scheler
Summary: Antimicrobial resistance (AMR) poses a global health threat, with antibiotics, heavy metals, and microplastics potentially synergistically enhancing the development of antibiotic resistant bacteria in the environment. Experimental methods are crucial to quantify the presence of these pollutants and associated microbial communities in the natural environment. Current technologies are being used to characterize ecosystems affected by microplastics and their role in promoting AMR, while emerging technologies show promise for further investigating AMR in these environments.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Qiaoying Ban, Liguo Zhang, Jianzheng Li
Summary: The study evaluated the removal of contaminants in a CWWTP and revealed the function of bacterial and archaeal communities in different bioreactors, highlighting the differences in relative abundance of bacteria and archaea in various reactors.
Review
Microbiology
Seyedbehnam Hashemi, Sayed Ebrahim Hashemi, Kristian M. Lien, Jacob J. Lamb
Summary: The paper discusses the importance of microbial diversity in anaerobic digestion processes and the application of high-throughput sequencing and advanced meta-omic techniques in analyzing the dynamics of microbial processes. It also points out the necessity of providing biomarkers for AD states and developing a biomarker database.
