Article
Green & Sustainable Science & Technology
Xiaofei Gong, Liang Zhang, Xiyao Li, Qiong Zhang, Taotao Shang, Jingwen Guo, Chuanxin Wang, Shuying Wang, Yongzhen Peng
Summary: This study proposed a novel Integrated Anammox, Fermentation and Denitrification (IAFD) process which achieved a high efficiency of nitrogen removal from wastewater. The process showed environmental and economical advantages with no external carbon requirement, reduced aeration, and sludge reduction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Chengkun Kao, Jianwei Li, Ruitao Gao, Wenyu Li, Xiyao Li, Qiong Zhang, Yongzhen Peng
Summary: This study successfully achieved multiple coupling nitritation, denitritation, and anammox in a 10 L bioreactor, enhancing stable nitrogen removal. After 223 days of operation, anammox activity and abundance increased significantly, providing a potential strategy for enriching anammox bacteria in wastewater treatment plants.
Article
Engineering, Environmental
Enzhe Yang, Jing Chen, Ke Liu, Jianhong Jiang, Hong Wang, Sha Wu, Lixiu Shi, Jingyi Jiang, Eli Hendrik Sanjaya, Hong Chen
Summary: This study constructed a single-stage partial nitritation-anammox and denitrification system and operated it continuously for 364 days. The system showed efficient and stable operation, with an average total nitrogen removal efficiency of 87.2%. The nitrogen removal pathway in the system changed from autotrophic nitrogen removal to nitrification-denitrification. Overall, the system demonstrated the potential for efficient single-stage nitrogen removal.
Article
Engineering, Environmental
Qiongpeng Dan, Rui Du, Tong Wang, Tiantian Sun, Honggui Han, Xiaorong Zhu, Xiyao Li, Qiong Zhang, Yongzhen Peng
Summary: A hybrid system of anammox combined with heterotrophic endogenous metabolisms was developed in a single-stage bioreactor to treat real domestic wastewater. Nitrogen removal was achieved at a low carbon to nitrogen ratio and maintained under an extremely low ratio. The coexistence and enrichment of different bacteria contributed to the co-metabolism of carbon, nitrogen, and phosphorus.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Hao Jiang, Pei Yang, Zhong Wang, Shang Ren, Jingang Qiu, Haoran Liang, Yongzhen Peng, Xiyao Li, Qiong Zhang
Summary: The study utilized a novel PnA/PdA SBBR to achieve efficient nitrogen removal from landfill leachate, by increasing DO and continuous carbon source feeding. The combined partial nitrification and partial denitrification processes synergized to significantly enhance nitrogen removal efficiency. Ammonia oxidation bacteria and Anammox bacteria showed comparable activities during aerobic period, while organic carbon redirection from complete denitrification to partial denitrification occurred during anoxic period.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
XiaoTong Wang, Hong Yang, JiaWei Wang
Summary: A two-stage partial nitritation/anammox process based on microbial encapsulation (PN/A-E) was established and thoroughly studied. The nitrogen removal efficiency of PN/A-E was compared to anammox granular sludge (AnGS) under high and low ammonia nitrogen conditions, as well as after reactivation from a long-term shutdown. The results showed that PN/A-E had a stable performance even under high ammonia nitrogen, and the nitrite accumulation rate reached 95.2 +/- 0.7%. The total nitrogen removal rate of encapsulated anammox bacteria was twice that of AnGS, and it exhibited better resilience to external interference. PN/A-E also demonstrated good reactivation performance with a final effluent total nitrogen of 10.0 +/- 1.4 mg·L-1 at a hydraulic retention time of 2.18 h. The immobilized fillers facilitated the growth of ammonia-oxidizing bacteria under restricted conditions and promoted the dominance of functional bacteria and stability of microbial community under low ammonia nitrogen. This study provides a positive method for achieving reliable PN/A process.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Xingxing Zhang, Peng Wu, Lezhong Xu, Liping Ma
Summary: This study proposed a novel simultaneous partial nitritation, denitratation and anammox process for efficient total nitrogen removal. Controlling aerobic duration and dissolved oxygen concentration could enhance microbial activity and stable suppression of nitrite-oxidizing bacteria.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Feng Zhou, Wan-Zi Xiao, Kai-Yuan Zhou, Jin-Long Zhuang, Xu Zhang, Yong-Di Liu, Bing-Jie Ni, James P. Shapleigh, Min Zhou, Xi-Zi Luo, Wei Li
Summary: This study developed a novel one-stage nitrogen removal method that integrates partial nitrification, anammox, and denitratation for the treatment of low C/N wastewater. The expression of key genes for nitritation, anammox, and denitratation increased as reactor performance improved. Analysis of the metagenome revealed the dominant genera of ammonium-oxidizing bacteria, anammox bacteria, and denitratation bacteria. Mass balance confirmed that anammox was the dominant nitrogen removal pathway.
CHEMICAL ENGINEERING JOURNAL
(2022)
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
Engineering, Environmental
Ming Li, Longzhi Liu, Zhiye Sun, Boyang Hu, Xinglin Li, Meichao Lan, Hong Guo, Baoan Li
Summary: In this study, a novel adsorption-biodegradation (A-B) process, using flocculation pretreatment as A-stage and nitritation-denitritation MABR as B-stage, was proposed to reduce carbon emissions from sewage treatment. The results showed that flocculation with polyaluminium ferric chloride (PAFC) could remove 27.37%-49.69% of organics from actual wastewater. The pretreated wastewater could be further treated by nitritation-denitritation MABR with low aeration pressure, achieving high removal efficiency of NH4+-N, total nitrogen (TN), and chemical oxygen demand (COD).
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Agricultural Engineering
Wenyu Li, Yongzhen Peng, Ruitao Gao, Qiong Zhang, Xiyao Li, Chengkun Kao, Jianwei Li
Summary: This study investigates the impact of low salinity levels on a double-anammox system in treating municipal wastewater, finding that a salinity of 1.0% led to a nitrogen removal efficiency of 81.2%, with a significant contribution of 76.5% from anammox. Low salinity was also found to promote nitritation and denitratation, enhancing the overall nitrogen removal efficiency. The enrichment of specific microbial populations, such as Ca. Brocadia and Nitrosomonas, further supported the effectiveness of the double-anammox process in treating saline wastewater.
BIORESOURCE TECHNOLOGY
(2022)
Review
Engineering, Environmental
Peng Wu, Junjiang Chen, Vijay Kumar Garlapati, Xingxing Zhang, Francis Wani Victor Jenario, Xiang Li, Wenru Liu, Chongjun Chen, Tejraj M. Aminabhavi, Xiaonong Zhang
Summary: This study presents a comprehensive review of the anammox process, the advancements in nitritation and denitratation processes, and proposes a novel wastewater treatment method for efficient nitrogen removal.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Xiaofei Gong, Feng Hou, Hongtao Pang, Yuanyuan Guo, Qiong Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: This study achieved stable and efficient nitrogen removal through a zero-external carbon Partial Nitritation/Anammox combined with in-situ sludge Fermentation-Denitrification process under decreased temperatures. The findings show the resilience of anammox to lower temperatures and highlight the importance of sludge reduction and organic recovery for enhanced denitrification.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biotechnology & Applied Microbiology
Kuo Zhang, Xinjue Li, Shou-Qing Ni, Sitong Liu
Summary: The study investigated the impact of different carrier materials on nitritation performance, finding that the Sepiolite nonwoven composite carrier significantly inhibits nitrite-oxidizing bacteria, improving the efficiency of the nitritation process and holding significant importance for mainstream wastewater treatment.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Chemical
Hafiz Adeel Ahmad, Beibei Guo, Xuming Zhuang, Yiyi Zhao, Shakeel Ahmad, Taeho Lee, Jiegao Zhu, Yuliang Dong, Shou-Qing Ni
Summary: The study demonstrated that the application of nano-zerovalent iron and low strength magnetic field reduced the start-up time and improved the long-term stability of anammox. The reactor with only magnetic field showed shorter start-up time and increased nitrogen removal efficiency, while the reactor with the coupled treatment of nano-zerovalent iron and magnetic field exhibited higher stability and efficiency. Additionally, the presence of other nitrogenous genera in the reactors contributed to the synergistic relationship with anammox, leading to higher nitrogen removal efficiency in the reactor with the coupled treatment.
Article
Environmental Sciences
Tipei Jia, Shihao Sun, Qi Zhao, Yongzhen Peng, Liang Zhang
Summary: This study investigated H2S removal and biomass variations in a biotrickling filter (BTF) under highly acidic conditions. The results showed that the BTF achieved efficient H2S removal at pH 0.5-1.0, and the enrichment of acidophilic sulfur-oxidizing bacteria (SOB) in the acidic biofilm maintained the balance of the biofilm thickness, ensuring oxygen transfer and H2S oxidation.
Article
Environmental Sciences
Jia Li, Yayi Wang, Jie Liu, Yongzhen Peng, Liang Zhang, Jia Lin
Summary: In this study, endogenous denitrification (ED) was enhanced in a practical AAO-AO process for the first time, leading to a significant increase in nitrogen removal efficiency (NRE). The findings suggest a novel cost-and energy-efficient strategy to improve NRE by optimizing the ED process.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Yandong Yang, Yiming Jiang, Yanan Long, Jiarui Xu, Changqing Liu, Liang Zhang, Yongzhen Peng
Summary: This study investigates the impact of residual ammonium on the stability of mainstream partial nitritation/anammox (PN/A) systems and reveals that low ammonium conditions lead to a decline in anammox activity and increased nitrite oxidation rate. The study provides insights for the optimized design of mainstream PN/A systems in engineering applications.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Environmental
Huihui Cui, Liang Zhang, Qiong Zhang, Xiyao Li, Yongzhen Peng
Summary: This study found that comammox bacteria, which were previously overlooked, are the most important ammonia-oxidizing microbes in Anammox systems, and play a significant role in nitrogen removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xinjie Gao, Liang Zhang, Yongzhen Peng, Jing Ding, Zeming An
Summary: The study found that stable nitrogen removal can be achieved in the anaerobic/aerobic/anoxic process by directly integrating stable anammox. The anammox activity compensates for the effects of low temperatures and low C/N ratios on nitrification and denitrification, leading to a stable nitrogen removal efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Xiaofei Gong, Liang Zhang, Xiyao Li, Qiong Zhang, Taotao Shang, Jingwen Guo, Chuanxin Wang, Shuying Wang, Yongzhen Peng
Summary: This study proposed a novel Integrated Anammox, Fermentation and Denitrification (IAFD) process which achieved a high efficiency of nitrogen removal from wastewater. The process showed environmental and economical advantages with no external carbon requirement, reduced aeration, and sludge reduction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Tipei Jia, Liang Zhang, Shihao Sun, Qi Zhao, Yongzhen Peng
Summary: In this study, acidophilic mixotrophic sulfur-oxidizing bacteria (SOB) were enriched under extremely acidic conditions to enhance bio-desulfurization performance. The addition of organics improved the H2S removal efficiency. Maintaining an appropriate biofilm mass is crucial for optimal desulfurization performance. The findings of this study offer a novel strategy for enhancing H2S removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Tipei Jia, Liang Zhang, Xiyao Li, Qi Zhao, Yongzhen Peng, Jun Sui, Chuanxin Wang
Summary: This study investigates the impact of seasonal temperature variations on the performance of a biotrickling filter system in removing hydrogen sulfide from air. It is found that the system achieves the highest removal efficiency at temperatures of 10-12 degrees Celsius. The accelerated growth of biofilm, enhanced biofilm adhesion capacity, and sulfur accumulation contribute to heat retention in cold conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Shenhua Yang, Haibin Chang, Yongzhen Peng, Shujun Zhang, Xiaoyu Han, Shihao Sun, Jinjin Liu, Liang Zhang
Summary: Adding fermented sludge products to SBR can enhance nutrient removal and reduce sewage treatment costs.
WATER ENVIRONMENT RESEARCH
(2023)
Article
Engineering, Environmental
Hanbin Wang, Liang Zhang, Qiongpeng Dan, Yingxin Zhang, Shuying Wang, Qiong Zhang, Xiyao Li, Chuanxin Wang, Yongzhen Peng
Summary: Integrating endogenous denitrification (ED) into partial nitrification-anammox (PNA) systems using organic matter in municipal wastewater effectively improves nitrogen removal efficiency. A novel strategy was adopted to inhibit phosphorus-accumulating organisms (PAOs) by inducing phosphorus release and exclusion, optimizing organics allocation between PAOs and glycogen-accumulating organisms (GAOs). This study achieved an NRE of 97.5 +/- 2.2% and effluent total inorganic nitrogen (TIN) of less than 2.0 mg/L using enhanced ED-synergized anammox for real municipal wastewater treatment.
Article
Environmental Sciences
Bingxin Li, Ruochen Wang, Weiwei Zuo, Yi Peng, Dong An, Liang Zhang, Zheng Ge
Summary: A lab-scale ceramic membrane bioreactor (MBR) with an active membrane-fouling control system was developed for the partial nitrification (PN) process. The in situ membrane cleaning method was used for uninterrupted removal of contaminants on the membrane surface. The device increased critical flux, reduced gel layer resistance (R-g), and internal resistance (R-i) of the flat-sheet ceramic membrane by inhibiting cake layer formation. In long-term experiments, nitrite oxidizing bacteria (NOB) were successfully suppressed, achieving high nitrite accumulation rate (NAR) of up to 90.09%. The maintained balance between effluent NO2--N/NH4+-N ratios would promote the proliferation of Anammox bacteria and the autotrophic nitrogen removal (ANR) process. Moreover, in situ cleaning significantly reduced energy input from aeration and ensured stable PN performance by avoiding over aeration.
Article
Engineering, Environmental
Yandong Yang, Yongzhen Peng, Jun Cheng, Shujun Zhang, Changqing Liu, Liang Zhang
Summary: A novel two-stage aerobic granular sludge (AGS) system was developed for municipal wastewater treatment, achieving high removal efficiencies of phosphorus (91%) and nitrogen (81%) with a low influent carbon/nitrogen ratio. The high nutrient removal was attributed to microbial segregation in the two SBRs. The first reactor promoted enhanced biological phosphorus removal (EBPR) with the high abundance of polyphosphate-accumulating organisms (Candidatus Accumulibacter 15.3%), while the second reactor removed residual ammonium via partial nitritation/ anammox (PN/A). The system also facilitated sludge maintenance and reduced settling time, providing opportunities for resource and bioenergy recovery.
CHEMICAL ENGINEERING JOURNAL
(2023)
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
Zhaoyang Li, Liang Zhang, Yongzhen Peng, Jialin Li
Summary: This study investigated the relationship between the performance and ecological features of a one-stage partial nitritation and anammox system disturbed by oxygen. The disturbance resulted in an irreversible deterioration of nitrogen removal rate and reduced richness and evenness of the microbial community. Additionally, the community structure changed and 234 operational taxonomic units were depleted. The study highlights the importance of ecological features in diagnosing, predicting, and optimizing the performance of partial nitritation and anammox systems.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Xiaofei Gong, Feng Hou, Hongtao Pang, Yuanyuan Guo, Qiong Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: This study achieved stable and efficient nitrogen removal through a zero-external carbon Partial Nitritation/Anammox combined with in-situ sludge Fermentation-Denitrification process under decreased temperatures. The findings show the resilience of anammox to lower temperatures and highlight the importance of sludge reduction and organic recovery for enhanced denitrification.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
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)