Review
Engineering, Environmental
Recep Kaya, Mustafa Evren Ersahin, Hale Ozgun, Borte Kose-Mutlu, Mehmet Emin Pasaoglu, Ismail Koyuncu
Summary: Membrane bioreactor (MBR) technology is considered a promising method for advanced wastewater treatment due to its high-quality effluent. However, fouling caused by intensive activated sludge used in submerged MBR systems is a major issue. To overcome this problem, researchers have explored the use of vibratory processes in MBRs. This review aims to gather current efforts in fouling control by vibratory motion, specifically in submerged activated sludge membrane bioreactors, and presents a comparative analysis of different vibration types and their experimental results.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Carlo Cabreros, Mary Vermi Aizza Corpuz, Fabiano Castrogiovanni, Laura Borea, Anna Sandionigi, Giovanni Vigliotta, Florencio Ballesteros Jr, Sebastia Puig, Shadi W. Hasan, Gregory V. Korshin, Vincenzo Belgiorno, Antonio Buonerba, Vincenzo Naddeo
Summary: This study investigates the complexity of microbial communities in self-forming dynamic membrane (SFDM) systems using Next-Generation Sequencing (NGS) data. The presence of an intermittently applied electric field in the encapsulated SFDM bioreactor promotes the growth of electroactive microorganisms, leading to highly efficient wastewater treatment and mitigation of membrane fouling.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Muhammad Bilal Asif, Chengyue Li, Baoyu Ren, Tahir Maqbool, Xihui Zhang, Zhenghua Zhang
Summary: In-situ ozonation in the ceramic MBR membrane tank, known as Oz-MBR, enhanced micropollutant removal efficiency and alleviated membrane fouling. The increased abundance of microbial taxa responsible for removing complex pollutants and/or ozone-assisted oxidation may contribute to the improved removal efficiency of micropollutants in the Oz-MBR.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Zhiqiang Chen, Da Li, Hongguo Liu, Qinxue Wen
Summary: Two identical anoxic/aerobic membrane bioreactors were operated to investigate the role of polyurethane foam addition in enhancing pollutants removal in coal gasification wastewater. Results showed that addition of PU foam significantly improved pollutants removal and alleviated membrane fouling.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Mingchao Zhu, Jingwei Wang, Danni Pei, Ji Sun, Yongze Lu, Zhaoxia Hu, Shouwen Chen, Na Li
Summary: The study employed an anaerobic membrane bioreactor (AnMBR) to successfully treat high-calcium papermaking wastewater, achieving high removal efficiency of COD and no significant accumulation of volatile fatty acids. Furthermore, the study found that the methane production capacity was negatively correlated with the inlet calcium ion concentration.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Agricultural Engineering
Thanh Ngoc-Dan Cao, Xuan-Thanh Bui, Linh-Thy Le, Bao-Trong Dang, Duyen Phuc-Hanh Tran, Thi-Kim-Quyen Vo, Huu-Tuan Tran, Thanh-Binh Nguyen, Hussnain Mukhtar, Shu-Yuan Pan, Sunita Varjani, Huu Hao Ngo, Thi-Dieu-Hien Vo
Summary: The discharged saline wastewater has a severe impact on the aquatic environment due to the limited treatment performance of many wastewater treatment techniques. Membrane bioreactor (MBR) processes, on the other hand, have shown potential in treating saline wastewater under different salinity levels depending on the adaptation of the microbial community. This study systematically reviews the application of MBR in the treatment of saline wastewater, focusing on microbial structure and treatment efficiencies. The concept of carbon dioxide capture and storage is also proposed for MBR-based saline wastewater treatment technologies to achieve zero emission targets in the circular economy.
BIORESOURCE TECHNOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Riccardo Campo, Claudio Lubello, Tommaso Lotti, Gaetano Di Bella
Summary: This review discusses the impact of aerobic granular sludge on performance and membrane fouling in combined aerobic granular sludge-membrane bioreactor systems. The research highlights that while aerobic granular sludge technology can mitigate fouling, granule breakage remains a critical issue to be addressed in the AGS-MBR process.
Article
Engineering, Environmental
Jinlong Wang, Xiaobin Tang, Yuyao Liu, Binghan Xie, Guibai Li, Heng Liang
Summary: The coupling of vermifiltration (VF) and self-sustained ultrafiltration (SUF) in this study achieved effective removal of dissolved pollutants and various microorganisms, while also improving membrane flux to ensure water safety. The synergistic effects among the modified biofouling layer structure, reduction of extracellular polymeric substances, and increase of inorganics contents contributed to the improved membrane flux, with further enhancement observed with the usage of reflux.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Engineering, Environmental
Shihai Deng, Lakshmi Jothinathan, Qinqing Cai, Rui Li, Mengyuan Wu, Say Leong Ong, Jiangyong Hu
Summary: Phenolic compounds are common contaminants in industrial effluents. A study developed a combined catalytic microbubble ozonation and biological process for efficient treatment of industrial phenolic wastewater. The FeOx@GAC catalyst showed significantly higher catalytic activity in microbubble ozonation for phenolic wastewater treatment, with an improvement in both TOC removal and phenolic compounds degradation. The study also evaluated different biological treatment processes and found that the combined O-3/FeOx@GAC-MBR process achieved high COD removal and phenolic compounds degradation efficiency.
Article
Environmental Sciences
Adem Yurtsever, Erkan Basaran, Deniz Ucar, Erkan Sahinkaya
Summary: The study investigated the robustness of AnDMBR for synthetic textile wastewater treatment, finding that in the absence of sulfate addition, the removal rate of total COD and filtered COD was 91% and 93% respectively, but decreased to 79% after sulfate addition. The suspended solids concentration in textile wastewater was low, while the dye removal rate was high.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Saleh Najafi Chaleshtori, Mehrdad Shamskilani, Azadeh Babaei, Masoomeh Behrang
Summary: This study investigated the performance of microalgal-activated sludge membrane bioreactor (MAS-MBR) as a self-biological treatment or post-treatment for conventional biological treatments. The results showed that cultivating mixed algae/sludge in raw wastewater achieved the best performance in terms of ammonium and phosphorus removal efficiency, as well as the highest oxygen production rate and oxygen uptake rate. However, membrane fouling was increased in this case, highlighting the need for regular membrane cleaning.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Shams Forruque Ahmed, Fatema Mehejabin, Adiba Momtahin, Nuzaba Tasannum, Nishat Tasnim Faria, M. Mofijur, Anh Tuan Hoang, Dai-Viet N. Vo, T. M. Mahlia
Summary: Membrane technology is gaining popularity in wastewater treatment due to its cost-effectiveness and environmentally friendly characteristics. This review addresses the key techniques for improving membrane performance and highlights the challenges and solutions associated with the membrane process. Hybrid techniques are also explored for enhancing membrane performance. The control strategies for membrane fouling still require optimization, and more research is needed for long-term direct membrane filtering operation.
Article
Environmental Sciences
Bao-Trong Dang, Xuan-Thanh Bui, Tomoaki Itayama, Huu Hao Ngo, Deokjin Jahng, Chitsan Lin, Shiao-Shing Chen, Kun-Yi Andrew Lin, Thanh-Tin Nguyen, Dinh Duc Nguyen, Todd Saunders
Summary: This study reveals the impact of CIP on bacterial community structures in the Sponge-MBR process, reducing the richness of critical phylotypes and affecting the removal efficiency of nitrogen and ammonia in wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Kaichong Wang, Zhen Zhou, Siqi Yu, Jiaxin Qiang, Yao Yuan, Yangjie Qin, Kaiqi Xiao, Xiaodan Zhao, Zhichao Wu
Summary: CAIRM combines chemically enhanced primary treatment, ammonium ion exchange, and regeneration, as well as membrane bioreactor, to efficiently treat domestic wastewater. It achieved efficient removal of pollutants, with TN concentration of 2.3±0.9 mg/L in the effluent. This integrated process addresses critical challenges of insufficient nitrogen removal and high land occupancy of current processes.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Suda Ittisupornrat, Suthida Theepharaksapan, Nattawut Krasaesueb, Athit Phetrak
Summary: This study investigates the performance of a membrane bioreactor (MBR) in treating saline-contaminated municipal wastewater. The results show that the MBR system exhibits high removal efficiencies for chemical oxygen demand (COD) and ammonium-N within a certain range of salinity concentrations. The analysis of bacterial composition suggests that specific bacteria play important roles in the biodegradation process. Therefore, the MBR system can be an effective solution for treating municipal wastewater occasionally contaminated with seawater.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Agricultural Engineering
Dawen Gao, Tao Xiang
Summary: This review discusses the challenges of applying mainstream deammonification in sewage treatment and the impacts of unfavorable conditions on main functional species. Novel control strategies to maintain the dominant position of desired species were summarized, and an efficient solution to the conflict between AnAOB biomass retention and NOB washout was reviewed. Further studies are suggested to achieve a combination of autotrophy and organotrophy species based on the metabolic diversity of AnAOB.
BIORESOURCE TECHNOLOGY
(2021)
Correction
Agricultural Engineering
Hongliang Guo, Chuan Chen, Duu-Jong Lee, Aijie Wang, Dawen Gao, Nanqi Ren
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Fengqin Liu, Yupeng Zhang, Hong Liang, Dawen Gao
Summary: This study investigated the response of the CH4 cycle in alkaline wetlands, using Zhalong wetland as an example. The research found that methanogenesis is quite resilient to drought, with syntrophic acetogenesis and aceticlastic methanogenesis as dominant pathways. The study also revealed the role of microbial functional genes in surviving drought and flood periods in alkaline wetlands.
Article
Agricultural Engineering
Tao Xiang, Hong Liang, Peng Wang, Dawen Gao
Summary: This study successfully achieved stable deammonification at ambient temperature, with insight into microbial abundance and activity in the reactors providing potential factors influencing system efficiency.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Yuqi Li, Tao Xiang, Hong Liang, Peng Wang, Dawen Gao
Summary: This study demonstrated the rapid resuscitation of a stable mainstream deammonification system using a PFBR and long-term refrigerated sidestream sludge, with efficient performance achieved through controlling the aeration rate. The proportional balance of AnAOB and AOB activity ensured the system's effectiveness, while Pearson correlation analysis revealed important relationships between microbial abundances, ammonium concentrations, and refrigeration effects on symbiotic relationships.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Tao Xiang, Hong Liang, Dawen Gao
Summary: The AnAOB granular sludge reactor showed faster recovery and higher nitrogen removal performance compared to the AOB-AnAOB granular sludge reactor after long-term storage, indicating better application potential and more active characteristics of aggregation metabolism.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Weifeng Deng, Litao Wang, Lang Cheng, Wenbo Yang, Dawen Gao
Summary: This paper reviewed the recent advances of anammox based processes for mature landfill leachate treatment and suggested some improvements to enhance the process efficiency.
Article
Agricultural Engineering
Dawen Gao, Yuqi Li, Hong Liang
Summary: This paper reviews the effect of carrier properties on the development of AnAOB biofilm, introduces the application status of organic-based, inorganic-based, and gel carriers, and summarizes the carrier modification methods and purposes. Four important aspects of the desirable carrier are proposed, and the future application directions of novel carriers are highlighted.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Dawen Gao, Weijie Wang, Weifeng Gao, Qingbo Zeng, Hong Liang
Summary: Autumn freeze-thaw period has a significant impact on soil temperature, moisture, nutrients, and the structure and diversity of soil microbial community. Different wetlands showed varying greenhouse gas fluxes, with soil temperature being a significant factor for CH4 flux. The global warming potentials during the autumn freeze-thaw period were found to be relatively high.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Weifeng Gao, Dawen Gao, Liquan Song, Houcai Sheng, Tijiu Cai, Hong Liang
Summary: Non-growing season nitrous oxide (N2O) emissions from permafrost regions are an essential component of annual emissions, contributing significantly to the annual budget. The driving factors of non-growing season N2O emissions differ from those of the growing season and the entire observation period, mainly influenced by soil temperature.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Mohammad Nabi, Hong Liang, Lang Cheng, Wenbo Yang, Dawen Gao
Summary: Globally, around 70% of waste is disposed of in open dumps or landfill sites, which generate leachate containing high concentrations of organic and inorganic compounds. Anaerobic digestion of landfill leachate is an environmentally-friendly method that converts organic compounds into methane-rich biogas. However, poor system stability, low methanogenic activity, and VFAs accumulation hinder the widespread application of anaerobic digestion. This review focuses on the use of conductive materials in landfill leachate treatment systems and discusses their impact on microbial growth, waste metabolism, methane production, and interspecies electron transfer.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Weifeng Gao, Dawen Gao, Tijiu Cai, Hong Liang
Summary: This study investigated the effects of different permafrost wetland types on greenhouse gas emissions in the Daxing'an Mountains. The results showed that N2O emissions were influenced by the NO3--N content, while CO2 emissions were driven by soil temperature, water table level, and NO3--N content. CH4 emissions were affected by soil temperature and water table level. The study concluded that the permafrost wetland types significantly affected the emissions of N2O, CO2, and CH4.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
Article
Environmental Sciences
Tao Xiang, Hong Liang, Dawen Gao
Summary: This study investigated the effects of exogenous N2H4 on AnAOB and found that low concentration dosing of N2H4 can promote SAA, while high concentration dosing can trigger the self-protection mechanism of AnAOB. Intermittent addition of low concentration N2H4 is conducive to the long-term stable operation of anammox process.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Bo Peng, Tao Xiang, Hong Liang, Dawen Gao
Summary: This study found that low concentrations of acetic acid and propionic acid can enhance the performance of the anammox process. When the organic acid concentration is too high, heterotrophic denitrification begins to dominate. Under organic inhibition, anammox bacteria restore energy supply through the carbon fixation pathway and citrate cycle.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Mohammad Nabi, Jinsong Liang, Panyue Zhang, Yan Wu, Chuan Fu, Siqi Wang, Junpei Ye, Dawen Gao, Fayyaz Ali Shah, Jiaqi Dai
Summary: The study investigated biogas production from sewage sludge pretreated by high pressure homogenization in an expanded granular sludge blanket (EGSB) reactor. By optimizing parameters, biogas production and organic degradation efficiency were significantly improved.
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)
