Article
Biochemistry & Molecular Biology
Gergely Stankovits, Agnes Abraham, Eva Kiss, Zoltan Varga, Anil Misra, Andras Szilagyi, Benjamin Gyarmati
Summary: The type and concentration of charged groups in polymers play a crucial role in mucoadhesive interactions. This study investigated the correlation between chemical structure and mucin-polymer interactions by designing cationic poly(amino acid)s with different charge densities. The results showed that the interactions between mucin and polyaspartamides with at least 50% cationic groups displayed a non-linear change, causing increased light scattering. The analysis further revealed that fully cationic polyaspartamide is not necessarily superior, and the maximum adsorbed mass of polymers on mucin occurred at medium cationic group contents. This highlights the importance of cationic polyaspartamides as mucoadhesive excipients due to their multiple functionalities.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Zhonglin Cao, Chunfeng Ma, Li Xiang, Linyan Cao
Summary: In this study, a biodegradable polyurethane material with anti-protein adsorption properties was synthesized. The material exhibited excellent nonspecific resistance to proteins and antibacterial adhesion, making it a potential candidate for medical antibacterial dressings.
Article
Engineering, Environmental
Yanbo Liu, Guoyu Zhang, Weirun Li, Yi Ding, Hong You, Jing Zhu, Haoran Leng, Chi Xu, Xiaodi Xing, Jingyue Xu, Zhipeng Li
Summary: This study applied a natural hybrid microalgae to investigate the mechanism of microalgae biofilm formation and its treatment of mariculture wastewater under different levels of ammonia nitrogen. The results showed that filamentous algae initially attached to the carrier and formed a web-like structure, followed by the involvement of non-filamentous algae and bacteria in biofilm formation. Protein in extracellular polymeric substances (EPS) played a key role in the initial colonization. The study provides a theoretical basis for understanding the mechanism of natural hybrid microalgae biofilm formation and its application in mariculture wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Ncumisa Mpongwana, Sudesh Rathilal
Summary: This review explores the properties of biofilms that can be exploited to enhance biological wastewater systems. It reveals that various biofilm properties, such as extracellular polymeric substances (EPS), quorum sensing (Qs), and acylated homoserine lactones (AHLs), can be enhanced to improve biofilm technology for wastewater treatment processes. The review also emphasizes the importance of exploiting these properties in simultaneous nitrification and denitrification and biological phosphorus removal processes.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Multidisciplinary
Andrzej Biadasz, Michal Kotkowiak, Damian Lukawski, Jakub Jadwi zak, Karol Rytel, Kamil K. Edzierski
Summary: In this study, a comprehensive gas transmission system was developed by combining elements from two commonly used systems, which allowed for automatic humidity changes and reliable gas flows in closed measurement chambers. The system demonstrated excellent stability and high precision, making it suitable for thorough investigation of humidity sensor properties.
Article
Nanoscience & Nanotechnology
Jieun Son, Seulki Ji, Sungho Kim, Soyoung Kim, Seong K. Kim, Wooseok Song, Sun Sook Lee, Jongsun Lim, Ki-Seok An, Sung Myung
Summary: A highly facile method utilizing microcolumns integrated on a QCM gas-responsive system with enhanced chemical selectivity was reported for sensing and identifying volatile organic compound single gases. The addition of microcolumns on the QCM electrode increased the ability to accurately analyze frequency shifts upon sensing various single gas molecules. The system exhibited high detection response values above 50 ng/cm(2) for gases, with the microcolumn-equipped sensor showing improved gas identification ability based on distinct diverging behavior of time constants upon detection of different gases.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Dongzhi Zhang, Xiaoshuang Song, Zhao Wang, Haonan Chen
Summary: This study presents a solution for high-performance humidity sensors by coating PDA-GO nanocomposite films on quartz crystal microbalances. The sensors exhibit best dynamic response with specific ratio and spray amount, fast response/recovery time, stable repeatability, and excellent stability, showing potential in various applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Xiaofang Yan, Jing Sun, Yizhen Wang, Zisha Zhang, Chuning Zhang, Wei Li, Juan Xu, Xiaohu Dai, Bing-Jie Ni
Summary: The study explored the use of low-dose ferrate (Fe(VI)) for destroying the structure of sewer biofilms, aiming to enhance the efficiency of biofilm control. The results showed that the biofilm structure started to deteriorate at a Fe(VI) dosage of 15 mg Fe(VI)/L and was further damaged with increasing dosage. Fe(VI) treatment mainly reduced the content of humic substances (HS) in biofilm extracellular polymeric substances (EPS), resulting in a looser biofilm structure. XDLVO analysis indicated that the treated biofilm was less likely to aggregate and easier to be removed by shear stress. Combined dosing experiments with Fe(VI) and free nitrous acid (FNA) showed considerable reduction in FNA dosing rate and exposure time, leading to a substantial decrease in cost. The study suggests that low-rate Fe(VI) dosing for biofilm structure destruction is an economical way to facilitate sewer biofilm control.
Article
Engineering, Electrical & Electronic
Changxing Sun, Wenrong Yang, Yifan He, Cunzheng Dong, Lei Chen, Zhaoqiang Chu, Xianfeng Liang, Huaihao Chen, Nian-Xiang Sun
Summary: The research presents a magnetoelectric sensor using single-crystal quartz material and optimized magnetostrictive layers to detect low-frequency magnetic field signals. By modulating the frequency, the sensor can detect the low-frequency magnetic field signals under zero bias conditions. Experimental results show that the absolute resolution with respect to a 1 Hz magnetic field can be decreased to 10 pT with the optimized layers.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Luyu Wang, Jia Song, Yuhang Wu, Chunyang Yu
Summary: Developing a long-term stable gaseous formaldehyde (HCHO) sensor is urgent. The modified Titanium dioxide (TiO2) nanorods on the Quartz Crystal Microbalance (QCM) sensing platform demonstrate excellent HCHO detection capabilities with a low detection limit of 50 ppb at normal temperature. The sensor also exhibits short response and recovery times of 10 s and 13 s, respectively, and satisfactory selectivity and short-term repeatability. Furthermore, the molecular formula of hydrate HCHO (HCHO•βH2O) in real air containing humidity is elucidated as HCHO•2.03-2.35H2O within a relative humidity range of 50-90%.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Microbiology
Francesca Bandini, Filippo Vaccari, Mariangela Soldano, Sergio Piccinini, Chiara Misci, Gabriele Bellotti, Eren Taskin, Pier Sandro Cocconcelli, Edoardo Puglisi
Summary: This study assessed the impact of bioplastics on the microbial communities involved in the treatment of organic solid waste. The results showed that bioplastics, especially during the aerobic phase, have a significant effect on the structure of microbial communities.
FRONTIERS IN MICROBIOLOGY
(2022)
Review
Green & Sustainable Science & Technology
Kumari Uma Mahto, Vandana Vandana, Monika Priyadarshanee, Devi P. Samantaray, Surajit Das
Summary: The bacterial biofilm and EPS play a crucial role in the removal of toxic pollutants from contaminated environments. Understanding their interaction mechanisms can aid in the development of field-scale applications for pollutant removal.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Analytical
Zhanjia Kang, Dongzhi Zhang, Tingting Li, Xiaohua Liu, Xiaoshuang Song
Summary: This paper presents a quartz crystal microbalance sensor based on SnO2 NFs/PDA composite with high sensitivity and selectivity to formaldehyde gas. The sensor exhibited excellent sensing characteristics over a wide range of formaldehyde concentration, including high sensitivity, short response/recovery times, and high linearity. The adsorption mechanism of formaldehyde gas was attributed to hydrogen bonding and aldehyde ammonia Schiff base interactions.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Chemical
Hira Waheed, Ch Tahir Mehmood, Yongyu Yang, Weiyu Tan, Saisai Fu, Yeyuan Xiao
Summary: This study investigated the biofilm formation potential of anaerobic microbes on polymeric membranes and found that different membrane materials can affect the formation of biofilms, with fibrous surfaces being more favorable for biofilm formation. The growth stage was crucial for biofilm formation, with interactions between substrata and extracellular polymeric substances (EPS) playing a key role in bacterial cell cohesion in mature biofilms.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Yong Hu, Chen Shi, Haiyuan Ma, Jiang Wu, Takuro Kobayashi, Kai-Qin Xu
Summary: The addition of biochar/Fe can effectively enhance biofilm formation in anaerobic treatment of high salinity wastewater, leading to improved removal efficiencies of soluble influent organics and methane production, as well as higher extracellular polymeric substances content and particle size in granular sludge.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Yong Hu, Chen Shi, Takuro Kobayashi, Kai-Qin Xu
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Review
Agricultural Engineering
Yuhui Ma, Xiangyong Zheng, Yunqing Fang, Kaiqin Xu, Shengbing He, Min Zhao
BIORESOURCE TECHNOLOGY
(2020)
Article
Engineering, Environmental
Rui Zhou, Fangyuan Liu, Nan Wei, Chaoge Yang, Jialin Yang, Yuqi Wu, Yan Li, Kaiqin Xu, Xiaochen Chen, Chunpeng Zhang
JOURNAL OF WATER PROCESS ENGINEERING
(2020)
Article
Engineering, Environmental
Yong Hu, Haiyuan Ma, Chen Shi, Takuro Kobayashi, Kai-Qin Xu
Summary: This study found that adding appropriate amounts of micro- and macro-nutrients can significantly improve methane production and maintain stability in the mono-digestion of sorghum. Supplementation of sulfur and cobalt was confirmed to be crucial for the efficiency of methane fermentation.
Article
Environmental Sciences
Chen Shi, Yong Hu, Takuro Kobayashi, Nan Zhang, Hidetoshi Kuramochi, Zhenya Zhang, Zhongfang Lei, Kai-Qin Xu
Summary: Decabromodiphenyl ether was anaerobically digested in two continuously stirred anaerobic bioreactors under thermophilic and mesophilic conditions for 210 days. The degradation followed first-order reaction kinetics, with a higher removal rate in the thermophilic reactor. Dominant species in the thermophilic reactor were Bacillus sp. and Methanosarcina sp. with high bioactivity and concentrations of debromination microorganisms.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Biotechnology & Applied Microbiology
Cong Wang, Qi Shi, Li-Fang Liu, Bo Li, Zhang Li, Yong Hu, Wei-Kang Qi, Wei Shen, Yu-You Li, Yongzhen Peng
Summary: A user-friendly mathematical model was developed to simulate sulfate reduction and methanogenesis, showing good fit between simulated and experimental concentrations. The optimized model parameters quantitatively and systematically account for the interaction of influent organic loading rate, chemical oxygen demand, sulfate concentrations, and organic composition.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Agricultural Engineering
Haiyuan Ma, Yong Hu, Jiang Wu, Takuro Kobayashi, Kai-Qin Xu, Hidetoshi Kuramochi
Summary: A hybrid reactor was established for tar treatment, and the addition of biochar improved methane production, relieved the inhibition caused by tar, and promoted the growth of some microbes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Yong Hu, Haiyuan Ma, Jiang Wu, Takuro Kobayashi, Kai-Qin Xu
Summary: The newly established thermophilic continuously stirred fluidized bed reactor (CSFBR) showed high treatment capacity and process stability in anaerobic digestion with high-lipid loading, as compared to traditional continuous stirred tank reactors (CSTRs).
Review
Engineering, Environmental
Chen-Shun Lu, Jin-Ming Qiu, Yang Yang, Yong Hu, Yu-You Li, Takuro Kobayashi, Yong-Jun Zhang
Summary: This paper reviews the effects of high salinity on microbial communities and granulation process in anaerobic treatment of high-salinity wastewater. Various strategies, such as inoculation of adaptive sludge, addition of exogenous substances, and conductive materials, have been adopted to improve microbial community structure, promote methane production, and enhance granulation to some extent.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Biotechnology & Applied Microbiology
Yi-Juan Yan, Xiang Li, Chen-Shun Lu, Takuro Kobayashi, Guang-Yin Zhen, Yong Hu
Summary: Kitchen waste is a suitable substrate for anaerobic digestion, but the difficulties and time-consuming nature of the start-up phase need to be addressed. This study discusses the factors influencing the start-up phase of kitchen waste anaerobic digestion and proposes methods to increase biogas yield. By controlling various parameters and optimizing conditions, the activity of methane-producing bacteria can be enhanced. Additionally, substrate pretreatment and conductive material addition are introduced to accelerate the start-up phase.
FERMENTATION-BASEL
(2023)
Review
Environmental Sciences
Xinzheng Zhang, Yuqin Fan, Tianwei Hao, Rong Chen, Tao Zhang, Yong Hu, Dapeng Li, Yang Pan, Yu-You Li, Zhe Kong
Summary: This article summarizes the importance and advantages of anaerobic digestion (AD) processes in the treatment of industrial organic wastewater, and introduces some advanced AD processes. AD processes are optimized through enhancement strategies to improve wastewater treatment and energy recovery. The combination of anaerobic ammonia oxidation (Anammox) with AD processes is introduced as a feasible solution for carbon-neutral wastewater treatment. In addition, the integration of AD processes with other bio-processes is proposed for low-carbon treatment in the future.
ENVIRONMENTAL RESEARCH
(2024)
Review
Engineering, Environmental
Liwen Cao, Yang Yang, Yi Xue, Haiyuan Ma, Yu-You Li, Yong Hu
Summary: This paper firstly introduces the structure and formation mechanism of anammox-HAP multi-layer granules, and then summarizes the existing A-HAP based processes and reviews their superiority in wastewater treatment. In addition, three stable operating conditions are provided for better application of these processes, and the challenges and opportunities for future research and practical applications are discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yong Hu, Yang Yang, Yu -You Li
Summary: The experimental study focused on investigating the impact of oxygenation, pH shock, and H2S inhibition on the competition between sulfate-reducing bacteria (SRB) and methane-producing archaea (MPA) in a UASB reactor. Results showed that micro-oxygenation increased sulfate removal while slightly reducing methane production, and pH shock along with high H2S concentration altered the competition dynamics between SRB and MPA.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Yong Hu, Chen Shi, Haiyuan Ma, Jiang Wu, Takuro Kobayashi, Kai-Qin Xu
Summary: The addition of biochar/Fe can effectively enhance biofilm formation in anaerobic treatment of high salinity wastewater, leading to improved removal efficiencies of soluble influent organics and methane production, as well as higher extracellular polymeric substances content and particle size in granular sludge.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)
