Article
Engineering, Environmental
Bingbing Ma, Xiaojing Zhang, Aihua Gao, Chuang Ma, Yulin Hou, Zirui Zhao, Hao Hu
Summary: The CANON process was utilized for treating composting wastewater, resulting in decreased ammonia levels and increased total nitrogen removal rate. Microorganisms secreted more extracellular polymeric substances to counteract cell damage caused by harmful substances, maintaining system stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Jing Lu, Yiguo Hong, Ying Wei, Ji-Dong Gu, Jiapeng Wu, Yu Wang, Fei Ye, Jih-Gaw Lin
Summary: The study analyzed the rates of ammonia oxidation (AO) and nitrite oxidation (NO) in the activated sludge from Xinfeng WWTPs, revealing strong activity of both processes. The research also identified AOB and Nitrospira as the main catalysts for nitrification in anammox-inoculated WWTPs, leading to efficient nitrogen removal.
Article
Environmental Sciences
Yujie Dai, Xiaolan Lin, Yi Luo, Jing Sun, Yun Tian
Summary: This study investigated the responses and relative contributions of ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), anaerobic ammonium oxidizing (anammox) bacteria, and denitrifying bacteria in mangrove sediments after spiking urea. The results indicated that nitrification (primarily mediated by AOA)-denitrification process played the most important role in nitrogen removal from the amendment of nitrogen short-term input in the mangrove sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biodiversity Conservation
Manman Chen, Hong Pan, Mingjie Sun, Wei He, Meng Wei, Yanhong Lou, Hui Wang, Quangang Yang, Haojie Feng, Yuping Zhuge
Summary: Organic fertilizer application increased N2O emissions from nitrification, dominated by the Nitrosospira cluster 3 lineage of AOB, while chemical N fertilizer stimulated N2O production from denitrification, dominated by the nirK lineage of Rhizobiales. The study highlights the different effects of organic and chemical fertilizers on N2O microbial emission pathways in agricultural soils.
ECOLOGICAL INDICATORS
(2021)
Article
Engineering, Environmental
Lingfeng Wang, Shuang Qiu, Jianhua Guo, Shijian Ge
Summary: Nitritation can be rapidly initiated using light irradiation, promoting the activity and growth of ammonia-oxidizing bacteria while suppressing nitrite-oxidizing bacteria. Optimal light energy densities can lead to high nitrite accumulation ratios, converting ammonia to nitrate. Additionally, light irradiation induces different responses of AOB and NOB, optimizing microbial structure while ensuring AOB predominance and stable nitritation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Helin Wang, Ping Li, Xiaohan Liu, Jing Zhang, Lisa Y. Stein, Ji-Dong Gu
Summary: This study investigated the influence of reactive oxygen species (ROS) on ammonia-oxidizing microorganisms (AOMs) in redox-fluctuating aquifers through field investigation and in-lab verification. The results showed that ROS played an important role in regulating AOMs, with ammonia-oxidizing archaea dominating in aquifers with lower ROS levels, and ammonia-oxidizing bacteria and heterotrophic nitrifying aerobic bacteria predominating in areas with higher ROS levels.
Article
Engineering, Environmental
Mingzhu Yang, Shuang Qiu, Lingfeng Wang, Zhipeng Chen, Yanbing Hu, Jianhua Guo, Shijian Ge
Summary: This study investigated the effects of light irradiation on the activities and physiological characteristics of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria in activated sludge. The results showed that moderate light irradiation could enhance the activity of ammonia-oxidizing bacteria, while excessive light could inhibit the activities of both types of bacteria. These findings contribute to our understanding of the physiological responses of nitrifiers to short-term light irradiation and have implications for the development of sustainable wastewater treatment technologies.
Article
Biodiversity Conservation
Di Liang, G. Philip Robertson
Summary: The long-term contribution of nitrification to nitrous oxide (N2O) emissions as well as the proportion of N2O derived from nitrification in different ecosystems remains uncertain, with actual values likely to be lower than estimated due to low N2O yields in cultured nitrifiers and competing sinks for available NH4+.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Soil Science
Konrad Egenolf, Philipp Schad, Ashly Arevalo, Daniel Villegas, Jacobo Arango, Hannes Karwat, Georg Cadisch, Frank Rasche
Summary: Brachiaria humidicola (syn. Urochloa humidicola) has been recognized for controlling soil nitrification through releasing nitrification inhibitors (NI), termed as biological nitrification inhibition (BNI), which can reduce net nitrification rates by 50 to 85%. Adjustment of soil pH and microbial background has little influence on BNI performance, while the decrease in net nitrification rates mainly depends on microbial N immobilization and efficient plant N uptake.
BIOLOGY AND FERTILITY OF SOILS
(2022)
Article
Environmental Sciences
Wenru Liu, Qian Wang, Yaoliang Shen, Dianhai Yang
Summary: This study successfully started a high-rate CANON process by enhancing in-situ enrichment of anammox bacteria in aerobic granules. The dominant anammox species was Ca. Brocadia sapporoensis with an estimated growth rate of 0.008-0.013 d(-1) at 15 degrees C. The granular CANON process showed high total nitrogen removal rate and efficiency under aggressive conditions.
Article
Soil Science
Jun Xie, Zifang Wang, Ying Wang, Shujiang Xiang, Ziyi Xiong, Ming Gao
Summary: Fertilization and soil environmental factors play a role in the niche differentiation of ammonia-oxidizing microorganisms and affect the ammonia-oxidation process. In this study, the effect of manure, chemical fertilizer, and manure combined with biochar on soil properties and the abundance, diversity, and structure of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in the rhizosphere were investigated. The results showed that chemical fertilizer and manure combined with biochar increased the potential nitrification rate (PNR) and AOA amoA gene abundance, while manure combined with biochar decreased PNR and AOA amoA gene abundance. The population structure of AOA and AOB was influenced by pH, available phosphorus, carbon-to-nitrogen ratio, soil moisture content, nitrate nitrogen, and ammonium nitrogen in the rhizosphere. The ammonia oxidation process in the acid purple soil was dominated by AOA in the presence of chemical fertilizer and pig manure combined with rice husk biochar.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Ahmed Elsayed, Jaecheul Yu, Taeho Lee, Younggy Kim
Summary: This study proposed a real-time aeration scheme based on nitrite concentration to control the competition between nitrite oxidizing bacteria (XNOB) and Anammox bacteria (XANA) in single-stage Anammox processes. The simulation results showed that maintaining dissolved oxygen (DO) at around 0.10 mg-O2/L was ideal for effective nitrite creation by ammonia oxidizing bacteria (XAOB) while slowing down the growth of XNOB. Nitrite concentration was found to be the rate-limiting parameter for efficient nitrogen removal in single-stage Anammox processes.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Shenbin Cao, Wangwang Yan, Lei Yu, Liang Zhang, Winson Lay, Yan Zhou
Summary: This study developed a cost-effective partial nitritation-anammox process to address the challenges in treating THP-AD centrate, achieving a nitrogen removal rate of 0.55 kg N/m3/d with mitigation strategies. However, issues such as sludge washout, AOB inhibition, and declining anammox activity were observed at higher THP-AD centrate concentrations. The study provides insights for developing an energy-saving treatment process for THP-AD centrate.
Article
Biotechnology & Applied Microbiology
Georgios Manthos, Leila Abbaszadeh, Dimitris Zagklis, Michael Kornaros
Summary: In this study, a comprehensive mathematical model was developed to describe the nitrification process in mixed cultures involving isolated NOB and starved AOB, allowing for a more accurate representation of the biological dynamics during starvation conditions. The accuracy of the model was confirmed by testing its predictions against experimental data. This model provides insights into the intricate mechanisms underlying nitrification, contributing to the advancement of sustainable wastewater treatment practices.
FERMENTATION-BASEL
(2023)
Article
Microbiology
Hidetoshi Urakawa, Gabrianna A. Andrews, Jose Lopez, Willm Martens-Habbena, Martin G. Klotz, David A. Stahl
Summary: A new betaproteobacterial chemolithotrophic ammonia-oxidizing bacterium, Nitrosomonas supralitoralis, was isolated from supralittoral sand of Edmonds City Beach, WA, USA. This bacterium is capable of growing at a wide range of temperatures, pH levels, and ammonia concentrations. It also exhibits tolerance to high levels of salt.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Ana T. Couto, Martim Cardador, Sergio Santorio, Luz Arregui, Benedetto Sicuro, Anuska Mosquera-Corral, Paula M. L. Castro, Catarina L. Amorim
Summary: This study isolated 15 strains of microalgae from sludge of a rainbow trout freshwater aquaculture farm, belonging to nine different genera of the Chlorophyta phylum. After culturing for 7 days in a raceway pond, these native microalgae isolates successfully removed approximately 99% of ammonium, 92% of nitrite, and 49% of nitrate from the effluent, with a biomass increase of around 17%.
JOURNAL OF APPLIED MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Daniel Valenzuela-Heredia, Camila Panatt, Marisol Belmonte, Oscar Franchi, Dafne Crutchik, Jacques Dumais, Jose Ramon Vazquez-Padin, Yves Lesty, Alba Pedrouso, Angeles Val del Rio, Anuska Mosquera-Corral, Jose Luis Campos
Summary: A two-stage system was used to remove nitrogen from dewatering liquor of municipal WWTP sludge. Two strategies were tested to start up the system, demonstrating that dilution of THP/AD effluents is not required. Experimental results showed that inhibitory effects of organic compounds on the activity of ammonia oxidizing bacteria can be eliminated in the PN reactor.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Alba Roibas-Rozas, Montserrat Nunez, Anuska Mosquera-Corral, Almudena Hospido
Summary: Salinity is changing in aquatic systems due to human activities and climate change, and its effects on overall ecosystems are still not well understood. This research introduces a new framework to study the impacts of salinity variations, including the possible positive effects of emissions. The framework was validated by applying it to an estuarine area in northwestern Spain, where sharp drops in salt concentration have caused mass mortalities of shellfish.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
P. Carrera, T. Casero-Diaz, C. M. Castro-Barros, R. Mendez, A. Val del Rio, A. Mosquera-Corral
Summary: The composition of wastewater plays a crucial role in selecting granule-forming organisms. The COD/N ratio of the influent can affect the granulation process and lead to different outcomes. The reactor showed efficient removal of COD and N, as well as robustness against production stops.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Lucia Argiz, David Correa-Galeote, Angeles Val del Rio, Anuska Mosquera-Corral, Rebeca Gonzalez-Cabaleiro
Summary: It was found that the mode of oxygen, carbon, and nitrogen supply determines the enrichment of the culture in specific populations, thus influencing the type of intracellular compounds preferentially accumulated. Coupled carbon and nitrogen feeding regime mainly selects for TAG producers, while uncoupled feeding leads to PHA or TAG production depending on the rate of carbon supply under specific aeration rates and feast and famine phases lengths.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Correction
Environmental Sciences
Lucia Argiz, Rebeca Gonzalez-Cabaleiro, Angeles Val del Rio, Jesus Gonzalez-Lopez, Anuska Mosquera-Corral
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Tania Palmeiro-Sanchez, Jose Luis Campos, Anuska Mosquera-Corral
Summary: The wastewater from a tuna-canning plant was acidified to produce volatile fatty acids, which were then used to feed a PHA production system. The enriched microbial mixed culture showed the ability to accumulate PHAs from the fermented tuna wastewater. However, the presence of variable salinity and ammonium affected the accumulation efficiency.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Multidisciplinary Sciences
Annarita Sibilio, Clara Suner, Marcos Fernandez-Alfara, Judit Martin, Antonio Berenguer, Alexandre Calon, Veronica Chanes, Alba Millanes-Romero, Gonzalo Fernandez-Miranda, Eduard Batlle, Mercedes Fernandez, Raul Mendez
Summary: This study investigates the role of the RNA-binding protein CPEB4 in intestinal immune homeostasis and its contribution to the development of inflammatory bowel diseases and colorectal cancer. The researchers found that CPEB4 is expressed in the intestines after damage and is necessary for the translation of cytokine mRNA, such as interleukin-22. It plays a role in maintaining intestinal immune homeostasis, promoting repair and remodeling after tissue damage, and resolving inflammation. Chronic overexpression of CPEB4 is observed in inflammatory cells in patients with IBD and CRC, which promotes tumor development.
Article
Polymer Science
David Correa-Galeote, Lucia Argiz, Angeles Val del Rio, Anuska Mosquera-Corral, Belen Juarez-Jimenez, Jesus Gonzalez-Lopez, Belen Rodelas
Summary: The biosynthesis of PHAs from industrial wastes using MMCs enriched in PHA-accumulating bacteria is a promising alternative to petroleum-based plastics. This study investigated the shifts in bacterial communities in lab-scale reactors fed with fish-canning effluents, and found that a double growth limitation strategy effectively modulated the relative abundances of PHA-accumulating bacteria and increased PHA accumulation, regardless of saline conditions.
Article
Biology
Clara Suner, Annarita Sibilio, Judit Martin, Chiara Lara Castellazzi, Oscar Reina, Ivan Dotu, Adria Caballe, Elisa Rivas, Vittorio Calderone, Juana Diez, Angel R. Nebreda, Raul Mendez
Summary: Chronic inflammation is a major cause of disease. This study reveals the counterbalancing actions of RNA-binding proteins CPEB4 and TTP in inflammation resolution. CPEB4 stabilizes anti-inflammatory transcripts, while TTP directs mRNA deadenylation. The activities of CPEB4 and TTP are regulated through MAPK signaling. Maintaining the balance between these two opposing mechanisms is crucial for efficient inflammation resolution.
Editorial Material
Green & Sustainable Science & Technology
Jose Luis Campos, Anuska Mosquera-Corral, Angeles Val del Rio, Alba Pedrouso
Article
Biochemistry & Molecular Biology
Santo Fabio Corsino, Gaetano Di Bella, Francesco Traina, Lucia Argiz Montes, Angeles Val del Rio, Anuska Mosquera Corral, Michele Torregrossa, Gaspare Viviani
Summary: In this study, a biological strategy was employed in the MBR system to reduce membrane fouling tendency. By controlling the operating conditions, the organic matter was directed towards the accumulation of intracellular polymers (PHA), leading to a decrease in extracellular polymeric substances (EPS) and a reduction in fouling rate. This highlights the possibility of minimizing membrane fouling and recovering bioplastic precursors from wastewater in line with the circular economy model.
Article
Biotechnology & Applied Microbiology
Berta Duran-Arque, Manuel Canete, Chiara Lara Castellazzi, Anna Bartomeu, Anna Ferrer-Caelles, Oscar Reina, Adria Caballe, Marina Gay, Gianluca Arauz-Garofalo, Eulalia Belloc, Raul Mendez
Summary: This study systematically addresses the regulation and mechanisms of action of the vertebrate CPEB family. The results show that different members of the CPEB family regulate gene expression through different mechanisms and target mRNAs, leading to cellular adaptive responses.
Article
Green & Sustainable Science & Technology
Valentina Ortega, Andres Donoso-Bravo, Rolando Chamy-Maggy, Jose Luis Campos, Anuska Mosquera-Corral, Marisol Belmonte
Summary: This study aimed to evaluate the most significant factors affecting methane yield in olive alperujo during biomethane potential tests. The results showed that olive alperujo concentration was the most significant factor affecting methane yield.
Article
Engineering, Environmental
Juan Pablo Pavissich, Nicolas Camus, Jose Luis Campos, Oscar Franchi, Alba Pedrouso, Paula Carrera, Angeles Val del Rio, Anuska Mosquera-Corral
Summary: The research found that the biomass of granular sludge showed significant fluctuations during the experimental process, but changes in the fractal dimension values of the granules were correlated with the dynamics of granule formation and disintegration. Therefore, the relative standard deviation of the granules fractal dimension can serve as an important parameter for monitoring the granules status and provide early warning of changes in the granules.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2021)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
