Article
Environmental Sciences
Ahmet Duyar, Vildan Ciftcioglu, Kevser Cirik, Gokhan Civelekoglu, Serhan Urus
Summary: This study recommended coupling of conventional single-stage A/O with moving bed biofilm reactor and membrane bioreactor for landfill leachate treatment. The system achieved efficient removal of COD, nitrogen, and PAEs, with notable presence of various metal elements and important microbial activities in the AnoxMBBR and AeMBR.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Liang Zhu, Huizhou Yuan, Jingwei Ma, Lin Deng, Zhou Shi, Qiulai He, Shuizhou Ke
Summary: Pure Moving bed biofilm reactor (pure MBBR) is an effective method for treating antibiotics, but its response to sulfadiazine (SDZ) has not been fully investigated. This study examined the impact of different doses of SDZ on pure MBBR. The results showed that SDZ inhibited COD and TN removal, but enhanced NH4+-N and TP removal at certain concentrations. SDZ also affected the biofilm community and gene expression. Overall, the pure MBBR performed well when SDZ concentration was below 3 mg/L, providing new insights into antibiotic wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Agricultural Engineering
Santhana Raj Deena, Gopalakrishnan Kumar, A. S. Vickram, Reeta Rani Singhania, Cheng-Di Dong, Karunakaran Rohini, K. Anbarasu, S. Thanigaivel, Vinoth Kumar Ponnusamy
Summary: This review discusses the impact of carrier properties such as shape, pores, and surface area on the efficiency of bioremediation in a moving bed-biofilm reactor (MBBR). It emphasizes the advantages of porous carriers with surface ridges and spherical pores, as well as the significance of biofilm thickness.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Jing Zhao, Gaofeng Ni, Maria Piculell, Jie Li, Zhetai Hu, Zhiyao Wang, Jianhua Guo, Zhiguo Yuan, Min Zheng, Shihu Hu
Summary: This study investigated the establishment, structure, and microbial community composition of biofilms in three laboratory-scale moving bed biofilm reactors, and found that the depth of living space significantly influenced the biofilm formation and community composition.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Roshni J. Patel, Upendra D. Patel, Anuradha S. Nerurkar
Summary: The study showed that the use of special microbial seed to form biofilm enhanced nitrate removal performance in MBBR. By optimizing various process parameters, the highest nitrate removal efficiency was achieved. Metagenomic studies identified Thauera spp. as the dominant denitrifying bacteria, suggesting that this approach is effective for nitrate removal from wastewater.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2021)
Article
Engineering, Environmental
Feixiang Zan, Chenyu Xiao, Guanghao Chen, Di Wu
Summary: This study assessed the nitrification ability of different carriers in MBBRs, finding that all carriers, except for two, effectively achieved ammonia removal and some carriers even established partial nitrification. Microbial analysis showed the possibility of simultaneous nitrification and denitrification.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Xiaodong Wang, Shanshan Chen, Xuejun Bi, Ning Chen, Tang Yang, Ling Wang, Zakhar Maletskyi, Harsha Ratnaweera
Summary: This study investigates the biofilm evolution in a pilot-scale MBBR system and measures the quantity of active heterotrophic and autotrophic biomass. The thickness and morphological data of the biofilm evolution were obtained through quantitative image analysis. Regression models based on the morphological data provided satisfactory prediction accuracy. This research provides important information for understanding the biofilm evolution in MBBRs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Faxin Liu, Wen Cheng, Jiehui Ren, Xing Zhang, Min Wang, Tian Wan, Taotao Lv
Summary: This study investigated the effect of different carbon sources on phosphorus removal, EPS composition, PHA and glycogen variation, and microbial community structure in an aerobic moving bed biofilm reactor (AMBBR) system. The results showed that sodium propionate as a carbon source improved the pollutant removal efficiency and promoted the growth of the carrier attached biofilm. Suitable carbon source types enhanced phosphorus removal by improving the growth of EPS and metabolism of microbial community.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yajun Fan, Miao Zhang, Jilin Cheng, Daming Yong, Junjie Ji, Qichao Wu, Chengda He
Summary: The three-stage plug flow moving bed biofilm reactor (PF-MBBR) demonstrated optimal NH4(+)-N removal efficiency and nitrite accumulation ratio in chamber N2, with distinct differences in bacterial community structure and biomass distribution. Ammonia oxidizing bacteria played a crucial role in the nitrification process, showing a significant advantage over nitrite oxidizing bacteria.
Review
Water Resources
Sangeeta Madan, Richa Madan, Athar Hussain
Summary: This review examines the application and development of the moving bed biofilm process (MBBR) in wastewater treatment, as well as factors affecting system performance, current research on organic matter and nutrient removal, and the potential of MBBR technology as a hybrid system. The paper also discusses future research prospects and challenges for the moving bed process.
APPLIED WATER SCIENCE
(2022)
Article
Engineering, Environmental
Jaehyeon Park, Yeowool Choi, Sang Don Kim
Summary: This study investigated the impact of the MBBR process in wastewater treatment plants on aquatic environments, focusing on OPEs. The study found that OPEs, particularly TCEP, can be released into the water from the biofilm carrier, and transformation products of TCEP are also emitted from the MBBR process.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2022)
Article
Environmental Sciences
Yifeng Xu, Ying Gu, Lai Peng, Ning Wang, Shi Chen, Chuanzhou Liang, Yiwen Liu, Bing-Jie Ni
Summary: Although moving bed biofilm reactors (MBBRs) have shown excellent antibiotic removal potentials, the mechanisms underlying this process are still not well understood. This study investigated the removal of ciprofloxacin in an enriched nitrifying MBBR, revealing the significant contributions of biomass adsorption and microbial-induced biodegradation. The results showed that the presence of ammonium enhanced the biodegradation rate through ammonia oxidizing bacteria (AOB)-induced cometabolism, while heterotrophs played a minor role in ciprofloxacin biodegradation. The findings suggest the feasibility of nitrifying biofilm systems for efficient antibiotic removal from wastewater.
Article
Agricultural Engineering
Hui-min Fu, Jinfeng Wang, Hongqiang Ren, Lili Ding
Summary: Adding specialized Quorum Sensing bacteria (sphingomonas rubra BH3(T)) can accelerate biofilm formation and operational performance of moving bed biofilm reactor (MBBR) at 5 ? by increasing biofilm thickness, biofilm activity, and nitrifying bacteria abundance. The study also found that BH3(T) contributed to higher species richness and triggered the rapid growth of precursor and multifunctional microorganisms at low temperatures.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Hongyi Li, Zhaoxia Xue, Tongxin Yin, Tingfeng Liu, Zhixin Hu
Summary: Moving bed biofilm reactor (MBBR) is a promising technology for wastewater treatment due to its high biomass retention and low cost. This study investigated the performance of using MBBR for partial denitrification (PD) and found that denitrifying biofilm could be successfully formed with a high biomass and nitrite reduction rate. The optimal conditions for efficient nitrite production were a COD/NO3--N ratio of 3 and a pH of 9. Saccharimonadales were identified as the dominant functional microbes in the PD systems. The study confirmed the feasibility and superior performance of PD-MBBR system.
Article
Biotechnology & Applied Microbiology
Sotiris Patsios, Konstantinos N. Kontogiannopoulos, Niki Pouliou, Anastasios J. Karabelas
Summary: Both the MBR and MBBR-MBR systems showed stable performance and high removal efficiencies when treating high-strength, saline wastewater from a table olive processing plant, with no significant differences observed in TOC and TPh removal. Reducing HRT led to a slight decrease in mean TOC removal efficiency.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(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)