Article
Agricultural Engineering
Larissa Garcez Bicelli, Alessandra Giordani, Matheus Ribeiro Augusto, Dagoberto Y. Okada, Rafael Brito de Moura, Daniele Vital Vich, Ronan Cleber Contrera, Vitor Cano, Theo Syrto Octavio de Souza
Summary: This study investigated the application of biofilms in landfill leachate treatment and found that it can achieve efficient nitrogen removal through nitritation-anammox process. The analysis of 16S rRNA sequencing confirmed the coexistence of different bacteria, indicating the selective pressure exerted by leachate on the microbial community structure.
BIORESOURCE TECHNOLOGY
(2023)
Review
Engineering, Environmental
Zhiyue Wang, Satoshi Ishii, Paige J. Novak
Summary: Encapsulation of microorganisms shows promising potential for enhancing biological nitrogen removal in wastewater treatment, offering benefits such as increased efficiency, reduced inhibition, and improved stability. However, further research is needed to understand interactions between encapsulated microorganisms and between microorganisms and their surrounding matrices, as well as to evaluate the stability and permeability of encapsulation materials under realistic wastewater treatment conditions.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Meina Hu, Xiaojing Liu, Tao Ya, Junyu Liu, Minglu Zhang, Xiaohui Wang
Summary: The effects of different dissolved oxygen (DO) conditions (0.3 and 1.0 mg/L) on microbial interactions in the partial nitrification/anammox (PN/A) process were investigated. High DO concentration (1.0 mg/L) inhibited anammox bacteria activity while enhancing nitrite oxidation bacteria (NOB) activity in the PN/A reactor. The presence of 1.0 mg/L DO promoted the abundance of NOB and some heterotrophic microorganisms, while decreasing the abundance of ammonia oxidizing bacteria and anammox bacteria. The changes in microbial interactions under 1.0 mg/L DO may lead to deterioration in nitrogen removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Yang Dong, Jinsong Guo, Zhen Zhong, Jianhui Wang, Youpeng Chen
Summary: The study demonstrated the performance of a novel packed cage rotating biological contactor (PCRBC) system in treating mustard tuber wastewater, with high removal efficiencies for COD, NH4+-N, and TN. Spatial distribution differences in bacterial communities along the PCRBC train were observed, indicating strong ecological associations among different bacteria and suggesting potential denitrification pathways.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Xue Chen, Qian Zhang, Yunan Zhu, Tiantao Zhao
Summary: This study designed a rotating biological contactor (RBC) and inoculated it with heterotrophic nitrification-aerobic denitrification (HN-AD) bacteria to improve the low pollutant removal efficiency of traditional biological methods for treating livestock and poultry breeding wastewater under a relatively low temperature. The results showed that the novel RBC achieved high nitrogen removal efficiency and revealed the key microbial assemblage and nitrogen transferring pathways under low C/N ratio and temperature.
Article
Biotechnology & Applied Microbiology
Shehani Sharadha Maheepala, Shunji Fuchigami, Masashi Hatamoto, Takumi Akashi, Takahiro Watari, Takashi Yamaguchi
Summary: This study evaluates the denitrification performance of a mesh rotating biological reactor (MRBR) during municipal wastewater treatment. The results show that the MRBR efficiently removes nitrate from water and is not significantly affected by water temperature changes, demonstrating stable treatment performance. Microbial analysis reveals that bacteria from the Comamonadaceae, Thiotrichaceae, and Rhodocyclaceae families dominate the MRBR and contribute to its performance.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Biotechnology & Applied Microbiology
Shunji Fuchigami, Masashi Hatamoto, Ryota Takagi, Takumi Akashi, Takahiro Watari, Takashi Yamaguchi
Summary: The study found that the MRBR's sewage treatment performance is significantly influenced by temperature and hydraulic retention time, with the NH: N removal rate decreasing as the temperature drops. Although the NH4+-N removal rate is low, simultaneous nitrification and denitrification can still achieve an efficiency of 95%. Compared to traditional activated sludge, the microbial community structure of MRBR biofilm sludge remains stable regardless of seasonal changes in hydraulic retention time.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Biotechnology & Applied Microbiology
Abolhassan Hosseinzadeh, Asma Chegeni, Valiollah Babaeipour
Summary: The Rotary Biological Contact (RBC) reactor has a unique aeration system that overcomes the limitations of stationary culture in bacterial cellulose (BC) production. In this study, a mathematical model based on one-dimensional oxygen mass transfer was used to simulate the RBC bioreactor producing BC. Sensitivity analysis was performed to investigate the effect of different system parameters. The simulation results showed that the increase in angular velocity and immersion depth positively affected the oxygen transfer coefficient and mass transfer rate.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Sharjeel Waqas, Muhammad Roil Bilad, Zakaria B. Man, Humbul Suleman, Nik Abdul Hadi Nordin, Juhana Jaafar, Mohd Hafiz Dzarfan Othman, Muthia Elma
Summary: Membrane rotating biological contactor (MRBC) combines conventional rotating biological contactor (RBC) with membrane filtration, offering improved biological performance and inherent membrane fouling control through disk rotation. With a high hydraulic performance and lower energy consumption, MRBC shows promising potential for sustainable wastewater treatment.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Sharjeel Waqas, Muhammad Roil Bilad, Aqsha Aqsha, Noorfidza Yub Harun, Muhammad Ayoub, Mohd Dzul Hakim Wirzal, Juhana Jaafar, Sri Mulyati, Muthia Elma
Summary: This study compares the biological and hydraulic performances of PVDF and PSF membranes in a rotating biological contactor system. Results show that the steady-state permeabilities of the membranes in MRBC are significantly higher than external filtration, with MRBC consuming only one-fourth of the energy of a traditional membrane bioreactor.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Hong Wang, Guanlong Yu, Weining He, Chunyan Du, Zhengyu Deng, Dongbo Wang, Min Yang, Enzhe Yang, Yaoyu Zhou, Eli Hendrik Sanjaya, Hong Chen
Summary: A novel dissolved oxygen-differentiated airlift internal circulation reactor was developed in this study to enhance autotrophic nitrogen removal efficiency from wastewater, achieving high total nitrogen removal efficiency of 80% within 30 days and stable maintenance over 200 days. The reactor optimized nitritation and anammox reactions, leading to enhanced ANR performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Environmental Sciences
Jia Li, Xiaochuan Ran, Mingda Zhou, Kaichong Wang, Han Wang, Yayi Wang
Summary: This review provides a comprehensive overview of oxidative stress and antioxidant mechanisms in anaerobic bioprocesses, focusing on anaerobic ammonium oxidation bacteria and methanogenic archaea. The identification of stress factors and understanding antioxidative defense mechanisms of functional obligate anaerobes are crucial for optimizing anaerobic bioprocesses.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Energy & Fuels
Shiyu Yuan, Zhiqiang Liu, Guozhu Liu
Summary: A high-gravity deoxygenation method using rotating packed bed was proposed in this study to enhance the gas-liquid mass transfer process of jet fuels. The effects of operation parameters on deoxygenation efficiency were systematically studied. This method showed remarkable advantages and is of great significance for the development of jet fuel deoxygenation technology.
Article
Agricultural Engineering
Guocheng Ma, Deshuang Yu, Jianhua Zhang, Yuanyuan Miao, Xinchao Zhao, Jiawen Li, Yu Zhang, Guoqing Dong, Jiaru Zhi
Summary: This study verified the feasibility of simultaneous partial nitrification, anammox, denitrification and fermentation process under intermittent aeration in a single reactor, and explored the impact of dissolved oxygen (DO) on the synergy between fermentation and nitrogen removal. An advanced nitrogen removal efficiency of 92.8% and a low observed sludge yield of 0.0268-0.1474 kgMLSS/kgCOD were achieved. The in-situ test showed the possibility of simultaneous partial denitrification, anammox, and fermentation. When DO increased from 0.1-0.3 to 0.4-0.6 mg/L, the nitrogen removal efficiency increased while sludge reduction was negatively affected.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Jinjin Liu, Yongzhen Peng, Shengjie Qiu, Lei Wu, Xiaofei Xue, Lingyun Li, Liang Zhang
Summary: Mainstream partial anammox technology offers a cost-and energy-efficient solution for wastewater treatment. This study demonstrated a novel method that combines excess sludge fermentation with simultaneous partial nitritation-anammox-denitrification process, achieving efficient nitrogen removal and offering a new approach for wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biotechnology & Applied Microbiology
Yukuan Duan, Lifen Liu
Summary: The Z-scheme ternary heterojunction of g-C3N4 and BiOI co-modified with Bi2WO6 (BCB) was prepared to enhance photocatalyst activity. The optimized doping ratios of 3 wt% BiOI/10 wt% g-C3N4/Bi2WO6 exhibited excellent catalytic performance in degrading rhodamine B (RhB) under visible light irradiation, achieving almost complete degradation in 30 minutes and a high reaction kinetic constant of 0.245 min(-1). The catalyst showed good stability and removal effect for different concentrations of tetracycline (TC), indicating its potential application in pollution control.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Nuclear Science & Technology
Jawaria Ahad, Talha Rizwan, Amjad Farooq, Khalid Waheed, Masroor Ahmad, Kamran Rasheed Qureshi, Waseem Siddique, Naseem Irfan
Summary: The filtered containment system is a passive safety system used to control over-pressurization of containment in design-based accidents by venting a high-pressure mixture of air, steam, and radioactive gases, such as iodine, through a scrubbing system. A lab-scale facility was developed to study iodine removal using a venturi scrubber, simulating accidental scenarios. A modified mathematical model was proposed to improve the efficiency of iodine removal by considering important parameters that were not previously included. Experimental results showed that removal efficiency increased with liquid level height and gas flow rate up to an optimum point before decreasing. The maximum removal efficiency achieved was 99.8%.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Xiaocong Zhong, Xianliang Yi, Fanqi Cheng, Huiyan Tong, Weiping Xu, Xiaojing Yang
Summary: There is a growing concern about plastic pollution and its impact on both health and ecology. This study investigated the release of di-2-ethylhexyl phthalate (DEHP), a common plastic additive, from different types of plastics into seawater. The results showed that the leaching potentials of DEHP varied among the selected plastics, with polyethylene mulch having the highest leaching potential and PBAT/PLA bags having the lowest. The study also assessed the potential environmental and human exposure risk of the leached DEHP, indicating low pollution risks in seawater.
Article
Environmental Sciences
Ji-Ning Yang, Jingjing Zhan, Hao Zhou, Huan-Huan Yang, Shi-Yu Zhang, Xianliang Yi, Jiajia Shan, Yang Liu
Summary: Simultaneously increasing the oxidative ability, recy-clability and deactivation repellence of α-MnO2 was achieved through one step treatment in oxalic acid (H2C2O4), resulting in a versatile formaldehyde oxidation material.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Rui Liu, Huan-Huan Yang, Hao Zhou, Xianliang Yi, Yang Liu
Summary: This study investigated the feasibility of MnO2 materials as particulate matter (PM) filtering media and clarified the effect of crystal structure on PM filtration. MnO2 with tunnel structure exhibited enhanced PM removal efficiencies compared to layered delta-MnO2.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Optics
Hexun Jiang, Mengfan Fu, Yixiao Zhu, Lilin Yi, Weisheng Hu, Qunbi Zhuge
Summary: Digital pre-distortion (DPD) is used to mitigate transmitter nonlinear distortion in optical transmissions. In this study, the identification of DPD coefficients is applied in optical communications for the first time using the direct learning architecture (DLA) with the Gauss-Newton (GN) method. The results show that the GN-based DLA outperforms the LS-based indirect learning architecture (ILA), especially in low signal-to-noise ratio scenarios.
Article
Materials Science, Characterization & Testing
Lvzhu Cheng, Amjad Farooq, Hai Wei Yang, Peng Wang, Qifan Qiao, Mingming Guo, Yong Wang, Zongqian Wang
Summary: A low-dosage chemicals, short process alternative approach to reactive dyeing of golden cocoon-like silk fibers with robust color fastness was proposed. The color of the dyed silk fibers was comparable to commercial golden cocoon silk and showed no color degradation after cyclic washing. The tensile behavior of the reactive dyed silk fibers was not significantly decreased compared to the raw fibers.
Article
Materials Science, Characterization & Testing
Yingping Wan, Amjad Farooq, Yi Sun, Fan Bu, Hui Zhang, Zongqian Wang
Summary: This study has developed a novel method to accurately categorize the types and content of stains in down raw materials. The method, named one blow and two washes, was successfully used to distinguish stain categories of different sources of down raw material with high reliability and good reproducibility.
Article
Nuclear Science & Technology
Jawaria Ahad, Amjad Farooq, Masroor Ahmad, Khalid Waheed, Kamran Rasheed Qureshi, Waseem Siddique, Naseem Irfan
Summary: Different experiments were conducted in a lab scale FCVS setup to understand the mechanism of wet scrubbing and improve the efficiency of iodine removal. Results showed that the decontamination factor was mainly influenced by gas flowrate and liquid level height. Decreasing the bubble diameter by increasing gas velocity enhanced mass transfer and removal efficiency, achieving over 99.9% removal efficiency.
PROGRESS IN NUCLEAR ENERGY
(2023)
Article
Engineering, Chemical
Qi Song, Yihua Li, Wancen Xie, Changfei Gao, Lifen Liu, Baicang Liu
Summary: In this study, an electro-Fenton coupled membrane filtration system was constructed to efficiently degrade micromolecular carbamazepine (CBZ) in aquatic environment. The system involved a composite cathode membrane that filtered out humic acid while allowing CBZ to pass through, followed by an EF process using a magnetic Fe@PC catalyst to degrade CBZ with high efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Mengdie Hou, Mengjun Xu, Jiangtao Xu, Jiafeng Lu, Yi An, Liangjin Huang, Xianglong Zeng, Fufei Pang, Jun Li, Lilin Yi
Summary: We demonstrate the first simulation and experimental realization of decomposing cylindrical vector (CV) and orbital angular momentum (OAM) modes by reconstructing multi-view images of the projected intensity distribution. The use of deep learning-based stochastic parallel gradient descent (SPGD) algorithm allows for the retrieval of modal coefficients and optical field distributions with high efficiency and accuracy. The generated donut modes are experimentally decomposed into CV and OAM modes, with a purity of 99.5% for CV modes. Rapid switching of vortex modes is achieved by electrically driving the polarization controller. Our findings provide a convenient way to characterize and deepen the understanding of CV or OAM modes, with potential applications in information coding and quantum computation.
Article
Chemistry, Physical
Jun Wang, Jingjing Zhan, Hao Zhou, Xianliang Yi, Yang Liu
Summary: Tourmaline-LiCoO2 composites were synthesized and found to have high adsorption capacity for Pb2+. The optimal conditions for Pb2+ adsorption were determined to be 0.375 g tourmaline addition and sintering at 800 degrees C. The adsorption behavior of TM0.375LCO800 was influenced by solution pH and foreign cations, with Cu2+ and Zn2+ having the largest effect. XRD, ATR, SEM, TEM, UV-vis DRS, and XPS analysis revealed the physicochemical properties of the composites. The high-temperature transformation of tourmaline and LiCoO2 promoted Pb2+ removal. This study highlights the potential of tourmaline-LiCoO2 composites for heavy metal ion removal and provides scientific insights for future environmental applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Yukuan Duan, Chen Wang, Shilong Yang, Lifen Liu
Summary: Researchers doped single metal atom Co into the Z-type heterojunction of photocatalysts, which further enhanced their synergistic activity. The optimal Co doping at 0.2 wt% in the 10 wt% g-C3N4/Bi2WO6 heterojunction showed the highest efficiency in degrading RhB (at a concentration of 100 mg/L) under visible light irradiation (99.7% degradation in 30 min, kinetic rate constant 0.182 min(-1)). This single-atom doped catalyst (Co/g-C3N4/Bi2WO6) exhibited remarkable performance in treating practical wastewater in EC-MFC system (96% COD removal and 92.8% TOC removal).
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Engineering, Environmental
Qian Zhang, Lifen Liu
Summary: Integrating filtration membrane cathode and packed granular carbon cathode in an up-flow bio-electrochemical reactor can maintain both higher-level treatment capacity and electricity generation in the microbial fuel cell (MFC). Scale-ups via unit stacking (U-S) or size-enlarged reactor/electrode (SE-RE) were tested on a Nylon wastewater, achieving high removal efficiencies of nitrogen compounds and COD, as well as significant power generation. Adjusting influent C/N with urea enhanced the COD removal and reduced membrane fouling, making U-S scale-up with urea dosage feasible for practical application in MFC treating Nylon wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Inorganic & Nuclear
Teng Li, Xuefeng Ren, Lifen Liu
Summary: This article summarizes and investigates the progress in the research of single-atom catalysts (SACs) in environmental applications and energy field. SACs have shown great potential in advanced oxidation processes, photocatalysis and photo-electrochemical systems, as well as fuel cells, with their performance depending on the metal element, support substrate, and coordination status shaped in preparation.
INORGANICA CHIMICA ACTA
(2024)
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)
