Review
Environmental Sciences
Gabriela Bonassa, Alice Chiapetti Bolsan, Camila Ester Hollas, Bruno Venturin, Daniela Candido, Angelica Chini, Marina C. De Pra, Fabiane Goldschmidt Antes, Jose Luis Campos, Airton Kunz
Summary: Organic carbon concentration affects the biological nitrogen removal process, and the selection of suitable nitrogen removal process should consider the biodegradability and bioavailability of organic matter.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Han Yang, Liangwei Deng, Hongnan Yang, Youqian Xiao, Dan Zheng
Summary: This study found that with sodium acetate as the organic carbon source in the zero-valent iron-mediated nitrogen removal system operated in co-substrate mode, the removal efficiency of NH4+-N and TIN could be significantly improved. The organic matter not only stimulated the activity of ammonia oxidation and denitrification, but also reduced the toxicity of iron to microorganisms, leading to the enrichment of certain bacteria.
Article
Engineering, Environmental
Yuanyuan Miao, Liang Zhang, Deshuang Yu, Jianhua Zhang, Wenke Zhang, Guocheng Ma, Xinchao Zhao, Yongzhen Peng
Summary: Intermittent aeration is an effective strategy for biological wastewater treatment, allowing for advanced nitrogen removal and reduced energy consumption. It is suitable for partial nitrification and denitrification processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Buqing Chen, Yujie Qin, Chenglong Wu, Zhiju Liu, Lan Yang, Siyuan Gong, Shaohong Zheng
Summary: This study assessed the effect of glucose in a DEAMOX reactor, and found that adding glucose can promote nitrogen removal efficiency while maintaining a synergic relationship between denitrification microorganisms and anammox microorganisms during the DEAMOX process.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Agricultural Engineering
Haiyan Li, Zhaoying Liu, Chaohong Tan, Xiaoran Zhang, Ziyang Zhang, Xiaojuan Bai, Liyuan Wu, Hua Yang
Summary: In this study, a excellent mixotrophic denitrification system was established by adding plant carbon source and sulfur to the bioretention system, which showed high efficiency in removing nitrate nitrogen and other pollutants. The different layers of the system exhibited different bacterial dominance and the upper layer had higher abundance of functional genes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Hussein E. Al-Hazmi, Dominika Grubba, Joanna Majtacz, Aleksandra Ziembinska-Buczynska, Jun Zhai, Jacek Makinia
Summary: Recently, the combined partial denitrification and anammox (PD/anammox) process using organic matter in municipal wastewater has gained attention for sustainable N removal. It offers advantages such as reduced dissolved oxygen demand, lower organic carbon requirement, less excess sludge production, and lower greenhouse gas emissions compared to conventional nitrification-denitrification. This review discusses the latest improvements in PD/anammox systems and focuses on the production/consumption pathways of critical intermediate NO2-. The C/N ratio and concentration of dosed organic carbon are crucial for optimal efficiency, as overgrowth of denitrifying bacteria can negatively impact anammox activity. Microorganism competition in single-stage PD/anammox systems plays a key role in achieving efficient N removal from mainstream wastewater. Challenges and limitations in recognizing inhibition mechanisms and performance inhibitors are also addressed. Future research should explore combining PD/anammox with other processes and developing self-supporting bacterial systems to enhance total nitrogen removal efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Agricultural Engineering
Xiao Huang, Kai Yao, Jianghua Yu, Wenyi Dong, Zilong Zhao
Summary: Fe3+ addition has different effects on the removal of nitrogen and phosphorus. Fe3+ can promote the removal of ammonia nitrogen and nitrification process, but inhibits denitrification process and reduces the abundance of denitrifying bacteria and biological phosphorus removing bacteria.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Yanlin Chen, Rui Zheng, Qianwen Sui, Tharindu Ritigala, Yuansong Wei, Xiangqian Cheng, Jiehui Ren, Dawei Yu, Meixue Chen, Tuo Wang
Summary: By controlling the carbon dosage and aeration strategy, the nitrogen removal efficiency was improved in a full-scale swine wastewater treatment plant, leading to a reduction in energy consumption.
BIORESOURCE TECHNOLOGY
(2021)
Review
Environmental Sciences
Xinrong Fu, Rongrong Hou, Peng Yang, Shengtao Qian, Zhuqing Feng, Zhongbing Chen, Fei Wang, Rongfang Yuan, Huilun Chen, Beihai Zhou
Summary: This review summarizes the effects of liquid, solid, and gaseous carbon sources on denitrification, finding that sodium acetate is the preferred external carbon source, biodegradable polymers perform better in solid-phase denitrification but have a higher price, and methane can be used as a gaseous carbon source. Liquid carbon sources are better controlled and utilized, and high carbon to nitrogen ratio, hydraulic retention time, and temperature promote denitrification.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Bingbing Ma, Xiaojing Zhang, Denghui Wei, Yongpeng Ma, Qiong Wang, Han Zhang, Jiajie Zhang
Summary: This study analyzed the suitable pH for the coupling process in a biofilter and found that the process could operate normally at pH of 6.5-8.5 with high total nitrogen removal efficiency. The highest TNRE was observed at pH 7.5. The variations in activity and gene concentration at different pH values revealed the response mechanism of the coupling process.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Youqi Tao, Rui Shi, Linjing Li, Suhui Xia, Jianyong Ning, Wenlai Xu
Summary: This study addressed the issues of sludge floating and uneven mass transfer in up-flow partial denitrification/anammox (PDA) reactors by implementing two strategies: adding biological carriers and applying mechanical stirring. The results showed that both strategies effectively prevented sludge flotation and deterioration of settling performance. Mechanical agitation had a more significant positive impact on PDA performance compared to the addition of biocarriers as it achieved more adequate mass transfer.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Carla Limberger Lopes, Tatiane Martins de Assis, Fernando Hermes Passig, Adriana Neres de Lima Model, Juliana Bortoli Rodrigues Mees, Francisco J. Cervantes, Jackeline T. Gotardo, Simone Damasceno Gomes
Summary: The study evaluated nitrogen removal from slaughterhouse wastewater in an anaerobic-anoxic-aerobic combined reactor, with the integrated effect of recirculation rate and hydraulic retention time. The highest performance was achieved with a recirculation rate of 2 and hydraulic retention time of 11 hours, resulting in NH4+ and TN removals of 84% and 65% respectively.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Xiao-Li Yang, Ling Zang, Jia-Jin Chen, Han Xu, Yi-Jing Yang, Hai-Liang Song
Summary: In this study, a three-chamber microbial electrolysis cell (MEC) was used to simultaneously migrate, transform, and remove NH4+-N, NO2--N, and NO3--N under different applied voltages. Higher applied voltages accelerated the migration rate of NH4+-N but had little effect on NO2--N and NO3--N. The highest total nitrogen (TN) removal efficiency was achieved at an applied voltage of 1.0 V. The study also discussed the nitrogen removal performance at different carbon to nitrogen (C/N) ratios, indicating the beneficial effect of nitrogen migration by applied voltages combined with nitrogen transformation.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Jennifer Pensky, Andrew T. Fisher, Galen Gorski, Nicole Schrad, Victor Bautista, Chad Saltikov
Summary: We conducted laboratory column studies to investigate the impacts of infiltration dynamics and the addition of carbon amendments on water quality during flood-managed aquifer recharge (flood-MAR). Our results show that the presence of carbon amendments, such as wood mulch or almond shells, increases nitrate removal compared to native soil. Almond shells promote more efficient nitrate removal but also lead to the mobilization of geogenic trace metals, indicating the importance of considering the carbon source and potential impacts on solute dynamics when designing MAR systems.
Article
Green & Sustainable Science & Technology
Hongxiang Chai, Jingchen Ma, Haiyuan Ma, Hong Cheng, Zhongshuai Weng, Zheng Kong, Zhiyu Shao, Yunsong Yuan, Yanhong Xu, Qichang Ni, Liqing Li
Summary: Novel pyrite-based bioretention cells with agricultural waste amendment (wood chips) were developed and evaluated under simulated complex rainfall conditions. The woodchip-amended bioretention cell showed significantly higher efficiency and stability for dissolved nutrient removal compared to the pyrite bioretention cell. Microbiological analysis revealed that woodchips promoted the proliferation of autotrophic and heterotrophic microorganisms, enhancing the nitrogen removal efficiency.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Milota Facerova, Igor Bodik, Lucia Ivanova, Roman Grabic, Tomas Mackulak
MONATSHEFTE FUR CHEMIE
(2017)
Article
Environmental Sciences
Lucia Ivanova, Milota Faberova, Tomas Mackul'ak, Roman Grabic, Igor Bodik
ENVIRONMENTAL RESEARCH
(2017)
Article
Chemistry, Multidisciplinary
Tomas Mackul'ak, Marian Marton, Monika Radicova, Andrea Vojs Stanova, Roman Grabic, Lucia Birosova, Kristina Nagyova, Marian Vojs, Igor Bodik, Paula Brandeburova, Miroslav Gal
MONATSHEFTE FUR CHEMIE
(2017)
Article
Environmental Sciences
J. J. Chavez-Fuentes, A. Capobianco, J. Barbuova, M. Hutnan
WASTE AND BIOMASS VALORIZATION
(2017)
Article
Environmental Sciences
Milota Faberova, Lucia Ivanova, Petra Szabova, Magdalena Stolcova, Igor Bodik
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Substance Abuse
Iria Gonzalez-Marino, Jose Antonio Baz-Lomba, Nikiforos A. Alygizakis, Maria Jesus Andres-Costa, Richard Bade, Anne Bannwarth, Leon P. Barron, Frederic Been, Lisa Benaglia, Jean-Daniel Berset, Lubertus Bijlsma, Igor Bodik, Asher Brenner, Andreas L. Brock, Daniel A. Burgard, Erika Castrignano, Alberto Celma, Christophoros E. Christophoridis, Adrian Covaci, Olivier Delemont, Pim de Voogt, Damien A. Devault, Mario J. Dias, Erik Emke, Pierre Esseiva, Despo Fatta-Kassinos, Ganna Fedorova, Konstantinos Fytianos, Cobus Gerber, Roman Grabic, Emma Gracia-Lor, Stefan Gruener, Teemu Gunnar, Evroula Hapeshi, Ester Heath, Bjoern Helm, Felix Hernandez, Aino Kankaanpaa, Sara Karolak, Barbara Kasprzyk-Hordern, Ivona Krizman-Matasic, Foon Yin Lai, Wojciech Lechowicz, Alvaro Lopes, Miren Lopez de Alda, Ester Lopez-Garcia, Arndis S. C. Love, Nicola Mastroianni, Gillian L. McEneff, Rosa Montes, Kelly Munro, Thomas Nefau, Herbert Oberacher, Jake W. O'Brien, Reinhard Oertel, Kristin Olafsdottir, Yolanda Pico, Benedek G. Plosz, Fabio Polesel, Cristina Postigo, Jose Benito Quintana, Pedram Ramin, Malcolm J. Reid, Jack Rice, Rosario Rodil, Noelia Salgueiro-Gonzalez, Sara Schubert, Ivan Senta, Susana M. Simoes, Maja M. Sremacki, Katarzyna Styszko, Senka Terzic, Nikolaos S. Thomaidis, Kevin Thomas, Ben J. Tscharke, Robin Udrisard, Alexander L. N. van Nuijs, Viviane Yargeau, Ettore Zuccato, Sara Castiglioni, Christoph Ort
Article
Biotechnology & Applied Microbiology
N. Grof, M. Hutnan
Summary: The study focuses on anaerobic fermentation of synthetic substrate with high nitrogen content, showing that proper gas washing equipment can mitigate ammonia inhibition and improve SBP production.
CHEMICAL AND BIOCHEMICAL ENGINEERING QUARTERLY
(2021)
Article
Environmental Sciences
Petra Szabova, Dora Varjuova, Monika Kovacova, Josef Prousek, Igor Bodik
Summary: This article investigates the impact of pH on the adsorption efficiency of pharmaceuticals on adsorbents. The study finds that different adsorbents show varying removal efficiency of drugs at different pH levels. The best removal efficiency is observed at pH 2.0, while a decrease in removal efficiency is observed at pH 12.0.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2022)
Article
Engineering, Environmental
Sergi Astals, Juan Jose Chavez-Fuentes, Gabriel Capson-Tojo, Miroslav Hutnan, Paul D. Jensen
Summary: Studies have shown that LCFA can alleviate the inhibition of ammoniacal nitrogen to a certain extent, possibly due to the formation of a protective layer by LCFA that limits the diffusion of free ammonia into the cell, or provides a localized lower pH around the microbial cell. However, the inhibition of ammoniacal nitrogen and LCFA also involve other inhibitors, and the specific mechanisms are not fully understood.
Article
Agronomy
Barbora Jankovicova, Miroslav Hutnan, Marianna Nagy Czolderova, Kristina Hencelova, Zuzana Imreova
Summary: This study compares different pre-treatment methods for lignocellulosic biomass in terms of degradation and biogas yield. The results show that pre-treatment with 0.5% NaOH significantly increases the biogas production of rapeseed straw and wheat straw, and also improves the biogas yield of maize waste. Alkaline pre-treatment methods are found to be more suitable from an environmental and economic perspective.
PLANT SOIL AND ENVIRONMENT
(2022)
Article
Engineering, Environmental
Roman Grabic, Lucia Ivanova, Radka Kodesova, Katerina Grabicova, Andrea Vojs Stanova, Zuzana Imreova, Miloslav Drtil, Igor Bodik
Summary: This study investigates the risks of pharmaceutical and illicit drug residues in sewage sludge when directly applied to agricultural soils. The leaching/desorption of these residues were tested under different pH conditions, and the results showed that the behavior of the residues varied depending on the sludge type and pH. The study suggests that high pH can increase the desorption of these residues, especially in anaerobically stabilized sludges.
Article
Engineering, Environmental
Miroslav Hutnan, Juan Jose Chavez Fuentes, Kristina Hencelova, Nikolas Grof, Barbora Jankovicova, Ronald Zakhar
Summary: This study focused on the anaerobic digestion of residual biomass from penicillin and L-cystine production. The results showed good anaerobic biodegradability of the biomass, but the presence of high concentrations of nitrogen and sulphur had a significant impact on the anaerobic processes. Additionally, the inhibition caused by sulphides could be effectively reduced by adding FeCl2.
Article
Chemistry, Multidisciplinary
Barbora Jankovicova, Miroslav Hutnan, Marianna Czolderova, Jana Barbusova
Summary: This study evaluated the effect of an enzymatic mixture on biogas production from lignocellulosic materials and found that the addition of the enzymatic mixture significantly increased biogas production for all substrates. However, long-term operation showed no significant difference in total biogas production for maize silage with and without the enzymatic mixture.
ACTA CHIMICA SLOVACA
(2022)
Article
Chemistry, Multidisciplinary
Nikolas Grof, Jana Barbusova, Krishna Hencelova, Miroslav Hutnan
ACTA CHIMICA SLOVACA
(2020)
Article
Food Science & Technology
Miroslav Hutnan, Juan Jose Chavez Fuentes, Jana Barbusova
LISTY CUKROVARNICKE A REPARSKE
(2017)
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)
