Article
Engineering, Environmental
Guang Hui Teoh, Zeinab Abbas Jawad, Boon Seng Ooi, Siew Chun Low
Summary: This study used membrane distillation to purify water and recover nutrients from aquaculture wastewater. The membrane showed excellent anti-fouling properties and achieved high water contact angle and low contact angle hysteresis. The process demonstrated efficient water recovery and nutrient concentration.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Engineering, Environmental
Oraleou Sangue Djandja, Lin-Xin Yin, Zhi-Cong Wang, Pei-Gao Duan
Summary: This article systematically reviews recent findings on hydrothermal treatments of Municipal Sewage Sludge, highlighting the related chemical reactions and the impact of reaction parameters. Suggestions are made for optimizing the applications of end products, and potential challenges for future hydrothermal treatments are discussed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Chemical
Ali Sayegh, Nikhil Shylaja Prakash, Harald Horn, Florencia Saravia
Summary: The aim of this study is to utilize membrane distillation to treat hydrothermal liquefaction wastewater and recover ammonium in the condensate. The results showed that the membrane exhibited long-term stability and could operate over a wide range of feed temperatures. The best condensate quality was obtained at feed temperatures of 50°C and 60°C, with high ammonium concentrations and low impurity levels. However, wetting of the membrane became unavoidable at recovery rates above 80%.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Nicholas A. Silva, Sage R. Hiibel
Summary: Phosphorus is a crucial resource in agriculture, and its recovery from waste materials is important to prevent loss and eutrophication. In this study, hydrothermal carbonization and membrane distillation were investigated as alternative methods to treat dairy manure and recover phosphorus and nitrogen. The two processes were found to be synergistic, with successful nutrient concentration. However, dissolved organic carbon was found to foul the membrane, especially in higher temperature solutions.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Environmental
Maojiong Cao, Yingxian Wang, Hugang Li, Jixiu Jia, Rui Li, Zhidan Liu
Summary: This study found that hy-drothermal liquefaction (HTL) biocrude oil distillate can significantly improve the tribological properties of diesel while maintaining fuel performance. The distillate fractions obtained at different temperatures can be blended with diesel, with high heating value and yield, resulting in improved tribological properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Amit Dan Grossman, Yonas Zeslase Belete, Sammy Boussiba, Uri Yogev, Clemens Posten, Franziska Ortiz Tena, Laurenz Thomsen, Song Wang, Amit Gross, Stefan Leu, Roy Bernstein
Summary: The study developed a near-zero waste treatment system for food processing wastewater, utilizing AnMBR and photobioreactor for microalgae cultivation, achieving effective recovery and utilization of waste. The research found variations in microalgal biomass and nitrogen-phosphorus uptake in wastewater among seasons, but overall, the treatment system was efficient, meeting irrigation water standards.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Jamison Watson, Buchun Si, Zixin Wang, Tengfei Wang, Amanda Valentine, Yuanhui Zhang
Summary: Biocrude oil distillates derived from hydrothermal liquefaction of food waste show potential as transportation fuel blendstock after distillation to improve chemical and physical properties, but blending with other fuels is still necessary to enhance certain characteristics.
Article
Agricultural Engineering
Szymon Sobek, Quang Khanh Tran, Robert Junga, Marcin Sajdak, Sebastian Werle
Summary: Lignosulfonate, a by-product of the pulping process, has great potential as an alternative source of aromatic and bioactive compounds. This study compared and discussed the hydrothermal treatment technologies of 10% and 20% lignosulfonate solutions, namely slow HTL in a batch reactor and fast HTL in a continuous-flow reactor, to evaluate their potential for obtaining bioactive and aromatic compounds. The analysis of the liquid products using GC-MS and LC-MS-QTOF showed that fast HTL produced more isoeugenol, eugenol, and homovanillyl alcohol, while slow HTL was rich in guiacol and apocynin. LC-MS analysis confirmed the presence of polycyclic phenolic compounds.
BIOMASS & BIOENERGY
(2023)
Article
Engineering, Chemical
Marco Aquino, Sergio Santoro, Gianluca Di Profio, Mauro Francesco La Russa, Carlo Limonti, Salvatore Straface, Giuseppe D'Andrea, Efrem Curcio, Alessio Siciliano
Summary: This study assesses the potential of Direct Contact Membrane Distillation (DCMD) for separating nutrients and recovering water from the liquid phase of digestate. The results show that DCMD can effectively separate water vapor and address the issues of high salinity and soluble ammoniacal nitrogen in digestate, making it possible for digestate to be reused.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Andres Sarrion, Angeles de la Rubia, Charles Coronella, Angel F. Mohedano, Elena Diaz
Summary: Hydrothermal carbonization offers a solution for the valorization and energy recovery of moist biomass waste. This study evaluated the hydrothermal treatment of dewatered waste-activated sludge (DWAS) at various temperatures and reaction times, with or without the addition of acid. The addition of acid during hydrothermal treatment aided the solubilization of nitrogen and phosphorus, but careful control of reaction time was required to prevent the recrystallization of phosphorus in the hydrochar.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Zhongsen Yan, Yuling Jiang, Xiaolei Chen, Zhenyu Lu, Zhongqing Wei, Gongduan Fan, Heng Liang, Fangshu Qu
Summary: The study demonstrated that landfill leachate can be efficiently treated using membrane distillation, achieving excellent rejection rates for organic carbon, phosphate, and metal ions under all tested conditions. The rejection rate of ammonia nitrogen can be increased by feed acidification, enhancing membrane fouling resistance. Additionally, energy consumption analysis indicated that waste heat from an incineration plant is sufficient to drive on-site treatment using MD.
Article
Chemistry, Physical
Deoukchen Ghim, Xuanhao Wu, Mathew Suazo, Young-Shin Jun
Summary: Photothermal membrane distillation (PMD) is a promising water desalination technique that utilizes sunlight as its main energy source and can be implemented in a modular configuration for decentralized communities. A multi-layer stacked membrane module with airgaps was developed to reduce heat loss and maximize water flux, achieving a high efficiency of 105% solar conversion.
Review
Agricultural Engineering
Weijin Zhang, Qingyue Chen, Jiefeng Chen, Donghai Xu, Hao Zhan, Haoyi Peng, Jian Pan, Mikhail Vlaskin, Lijian Leng, Hailong Li
Summary: Hydrothermal treatment (HTT) is a promising technology for biomass valorization, and machine learning (ML) has been widely applied to predict and optimize the production from HTT. This review comprehensively analyzed the application of ML for HTT of biomass and summarized ML-aided HTT prediction of yield, compositions, and physicochemical properties of derived products. Future prospects were proposed to enhance predictive performance, mechanistic interpretation, process optimization, data sharing, and model application during ML-aided HTT.
BIORESOURCE TECHNOLOGY
(2023)
Article
Thermodynamics
Jie Chen, Jing Zhang, Wei Pan, Guojun An, Ying Deng, Yingjie Li, Yicheng Hu, Yu Xiao, Tonggui Liu, Songqi Leng, Jiefeng Chen, Jun Li, Haoyi Peng, Lijian Leng, Wenguang Zhou
Summary: This study aims to improve the bio-oil yield, energy recovery, and nutrient recovery of sequential hydrothermal liquefaction (SEQ-HTL) by integrating aqueous phase (AP) recirculation and fungal-microalgal cultivation. The results show that this novel strategy can enhance the economic feasibility of processing high-protein microalgae biomass using the SEQ-HTL technique and has promising industrial applications for microalgae.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Jeganathan Nallasivam, B. E. Eboibi, Andreas Isdepsky, Melcureraj Lavanya, Sailendra Bhaskar, Senthil Chinnasamy
Summary: This study investigates the hydrothermal liquefaction (HTL) of water hyacinth biomass and its potential as a feedstock for producing bio-crude. The results showed that the bio-crude yield increased with increasing reaction temperature, reaching a maximum at 350 degrees C. GC-MS analysis revealed the presence of a complex mixture of hydrocarbons, phenolics, and oxygen- and nitrogen-containing compounds in the bio-crude.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Chemical
Bongyeon Jung, Caroline Y. Kim, Shiyuan Jiao, Unnati Rao, Alexander V. Dudchenko, Jefferson Tester, David Jassby
Article
Engineering, Environmental
Unnati Rao, Arpita Iddya, Bongyeon Jung, Chia Miang Khor, Zachary Hendren, Craig Turchi, Tzahi Cath, Eric M. Hoek, Guy Z. Ramon, David Jassby
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Environmental
Unnati Rao, Yiming Su, Chia Miang Khor, Bongyeon Jung, Shengcun Ma, David M. Cwiertny, Bryan M. Wong, David Jassby
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Jia Jiang, William P. L. Carter, David R. Cocker, Kelley C. Barsanti
ACS EARTH AND SPACE CHEMISTRY
(2020)
Article
Engineering, Chemical
Jingbo Wang, Yiming Liu, Unnati Rao, Mark Dudley, Navid Dehdari Ebrahimi, Jincheng Lou, Fei Han, Eric M. V. Hoek, Nils Tilton, Tzahi Y. Cath, Craig S. Turchi, Michael B. Heeley, Y. Sungtaek Ju, David Jassby
Summary: Membrane distillation (MD) is an effective thermal desalination process for hypersaline brines, and supplying heat directly to the feed channel can improve efficiency and performance, as demonstrated in a system using layered composite membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Michael A. Robinson, Zachary C. J. Decker, Kelley C. Barsanti, Matthew M. Coggon, Frank M. Flocke, Alessandro Franchin, Carley D. Fredrickson, Jessica B. Gilman, Georgios Gkatzelis, Christopher D. Holmes, Aaron Lamplugh, Avi Lavi, Ann M. Middlebrook, Denise M. Montzka, Brett B. Palm, Jeff Peischl, Brad Pierce, Rebecca H. Schwantes, Kanako Sekimoto, Vanessa Selimovic, Geoffrey S. Tyndall, Joel A. Thornton, Paul Van Rooy, Carsten Warneke, Andrew J. Weinheimer, Steven S. Brown
Summary: The study highlights the importance of understanding the efficiency and variability of photochemical ozone production from western wildfire plumes in accurately estimating their impact on North American air quality. Results show that afternoon plumes reach higher O-3 mixing ratios in a shorter time frame than evening plumes, with HOx production from fire emissions playing a significant role. Evening plumes, on the other hand, are more influenced by reduction in photolysis rates and fire emissions in their O-3 production process.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
William C. Porter, Jose L. Jimenez, Kelley C. Barsanti
Summary: Advancements in understanding the fundamental chemical and physical processes of secondary organic aerosol (SOA) formation have been made through laboratory studies. While some parameters show good representation of atmospherically relevant ranges, significant gaps exist for others, requiring further research to bridge these differences.
ACS EARTH AND SPACE CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Joshua L. Laughner, Jessica L. Neu, David Schimel, Paul O. Wennberg, Kelley Barsanti, Kevin W. Bowman, Abhishek Chatterjee, Bart E. Croes, Helen L. Fitzmaurice, Daven K. Henze, Jinsol Kim, Eric A. Kort, Zhu Liu, Kazuyuki Miyazaki, Alexander J. Turner, Susan Anenberg, Jeremy Avise, Hansen Cao, David Crisp, Joost de Gouw, Annmarie Eldering, John C. Fyfe, Daniel L. Goldberg, Kevin R. Gurney, Sina Hasheminassab, Francesca Hopkins, Cesunica E. Ivey, Dylan B. A. Jones, Junjie Liu, Nicole S. Lovenduski, Randall V. Martin, Galen A. McKinley, Lesley Ott, Benjamin Poulter, Muye Ru, Stanley P. Sander, Neil Swart, Yuk L. Yung, Zhao-Cheng Zeng
Summary: The COVID-19 pandemic and subsequent lockdowns have led to significant changes in atmospheric composition, particularly impacting greenhouse gases despite reductions in anthropogenic activity. The response of greenhouse gases to decreased emissions differed from that of ozone due to spatial and temporal variability in chemical regimes worldwide.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Geosciences, Multidisciplinary
Christine Wiedinmyer, Yosuke Kimura, Elena C. McDonald-Buller, Louisa K. Emmons, Rebecca R. Buchholz, Wenfu Tang, Keenan Seto, Maxwell B. Joseph, Kelley C. Barsanti, Annmarie G. Carlton, Robert Yokelson
Summary: We introduce FINNv2.5, a fire emissions inventory that provides publicly available emissions of trace gases and aerosols for various applications, including global and regional atmospheric chemistry modeling. FINNv2.5 includes updates to better represent burned area, vegetation burned, and chemicals emitted, and utilizes active fire detections from VIIRS for smaller fires. It also improves the calculation of burned area and updates fuel characterization and emissions factors. The daily emissions for trace gases and aerosols are determined for different time periods using MODIS and MODIS+VIIRS fire detections.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Christos Stamatis, Kelley Claire Barsanti
Summary: Wildfires in the western US have been increasing in frequency and intensity in recent decades, impacting air quality negatively. Understanding the chemical composition of smoke is crucial for improving predictions of air quality effects and evaluating mitigation strategies. Pattern recognition and classification algorithms show promise in identifying fuel types contributing to smoke samples.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2022)
Article
Environmental Sciences
Qi Li, Jia Jiang, Isaac K. Afreh, Kelley C. Barsanti, David R. Cocker
Summary: This study investigates the oxidation of camphene and the formation of secondary organic aerosol (SOA). Experimental and modeling results show that the presence of nitrogen oxides (NOx) can enhance the SOA mass yield. Moreover, the study reveals the effects of NOx concentration and initial camphene concentration on the SOA formation process.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Zachary C. J. Decker, Michael A. Robinson, Kelley C. Barsanti, Ilann Bourgeois, Matthew M. Coggon, Joshua P. DiGangi, Glenn S. Diskin, Frank M. Flocke, Alessandro Franchin, Carley D. Fredrickson, Georgios Gkatzelis, Samuel R. Hall, Hannah Halliday, Christopher D. Holmes, L. Gregory Huey, Young Ro Lee, Jakob Lindaas, Ann M. Middlebrook, Denise D. Montzka, Richard Moore, J. Andrew Neuman, John B. Nowak, Brett B. Palm, Jeff Peischl, Felix Piel, Pamela S. Rickly, Andrew W. Rollins, Thomas B. Ryerson, Rebecca H. Schwantes, Kanako Sekimoto, Lee Thornhill, Joel A. Thornton, Geoffrey S. Tyndall, Kirk Ullmann, Paul Van Rooy, Patrick R. Veres, Carsten Warneke, Rebecca A. Washenfelder, Andrew J. Weinheimer, Elizabeth Wiggins, Edward Winstead, Armin Wisthaler, Caroline Womack, Steven S. Brown
Summary: This study focuses on the transition between daytime and nighttime oxidation of biomass burning smoke, exploring its implications for the formation of secondary pollutants and loss of nitrogen oxides. Data from the FIREX-AQ field campaign in the United States in 2019 reveals significant nitrate radical oxidation in plumes during both midday and after dark, with implications for regional air quality.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Isaac Kwadjo Afreh, Bernard Aumont, Marie Camredon, Kelley Claire Barsanti
Summary: Camphene, an important monoterpene emitted from both biogenic and pyrogenic sources, has been understudied in terms of its contribution to secondary organic aerosol (SOA) formation. This study used a modeling approach to investigate SOA formation from camphene, showing that camphene can lead to relatively high SOA yields compared to alpha-pinene but lower than limonene. The study also demonstrated the potential importance of including a parameterized representation of camphene SOA formation in air quality models.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Sabrina Chee, Kelley Barsanti, James N. Smith, Nanna Myllys
Summary: This study explores the critical drivers of new particle formation events in the atmosphere, focusing on acid-base clusters and stable salt formation. Gas-phase acidity was identified as the best predictor of heterodimer stability, and temperature and concentration effects made predicting J(4x4) challenging. A new parameterization involving the normalized heterodimer concentration, Phi, was proposed to accurately estimate J(4x4) in atmospheric models.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jiries Meehan-Atrash, Wentai Luo, Kevin J. McWhirter, David G. Dennis, David Sarlah, Robert P. Jensen, Isaac Afreh, Jia Jiang, Kelley C. Barsanti, Alisha Ortiz, Robert M. Strongin
Summary: This study explores how the relative ratios of THC and terpenes in cannabis extracts impact dosage and exposure to harmful components. The research demonstrates that increasing the mass percentage of beta-myrcene in THC-beta-myrcene mixtures is associated with higher levels of harmful components compared to THC.
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)
