Article
Engineering, Environmental
Yi-Lu Sun, Kun Zheng, Si-Yuan Zhai, Hao-Yi Cheng, Zhi-Min Qian, Hong-Cheng Wang, Ji-Xian Yang, Xue-Ning Zhang, Ai-Jie Wang
Summary: In this study, a sulfur-based autotrophic disproportionation-denitrification (SAD2) system was successfully developed by connecting an independent sulfur-based autotrophic disproportionation (SADP) bioreactor with a SADN bioreactor. The SAD2 system achieved adjustable and high-rate nitrogen removal while avoiding sulfide emissions, surpassing the capabilities of the independent SADN system. This novel system offers a new pattern for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Yunmeng Pang, Jianlong Wang
Summary: This paper discusses the issue of nitrate pollution in water and wastewater, as well as the use of various electron donors for biological denitrification. Depending on the types of electron donors, denitrification can be classified into heterotrophic and autotrophic denitrification.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Aylin Ebru Yenilmez, Selin Ertul, Tulay Yilmaz, Deniz Ucar, Francesco Di Capua, Erkan Sahinkaya
Summary: In this study, the simultaneous removal of PNP and NO3- was investigated under autotrophic and heterotrophic denitrifying conditions. The results showed that autotrophic denitrification with elemental sulfur can efficiently eliminate both PNP and NO3-, even at high concentrations. ORP was identified as a possible control parameter to modulate PNP removal efficiency. Additionally, the autotrophic column showed better resiliency compared to the heterotrophic one.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Ruihua Li, Mengsha Guan, Wei Wang
Summary: This study demonstrates that pyrrhotite can effectively remove arsenite and nitrate from groundwater, with the PAD technology providing a simple and cost-effective way for remediation. The PSLAD biofilter achieved good removal efficiency under a hydraulic retention time of 6 hours, showing the potential for practical application in addressing co-contaminated groundwater.
Article
Environmental Sciences
Shuo Huang, Deshuang Yu, Guanghui Chen, Yanyan Wang, Peng Tang, Chengcheng Liu, Yuan Tian, Meng Zhang
Summary: The study demonstrates that autotrophic denitrification can effectively remove nitrate and sulfide while achieving nitrite accumulation; the accumulation rate of nitrite varies under different S/N ratios; changes in microbial community structure are closely related to the autotrophic denitrification process.
Article
Environmental Sciences
Tulay Yilmaz, Erkan Sahinkaya
Summary: Textile industry generates a large amount of wastewater with various polluting substances. Water reuse, especially with the combination of reverse osmosis and membrane bioreactor treatment, has become more common in this industry. In this study, the performance of an autotrophic sulfur-based denitrifying column was evaluated for the reduction of nitrate in the permeate of a lab-scale membrane bioreactor receiving real textile wastewater, as well as in the concentrate stream of a real-scale reverse osmosis plant used for water recovery from textile wastewater. The results showed that the sulfur-based column could achieve high denitrification performances for both the membrane bioreactor effluent and the reverse osmosis concentrate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
Haohao Miao, Wei Zeng, Jianmin Li, Hong Liu, Mengjia Zhan, Hongxing Dai, Yongzhen Peng
Summary: This study constructed two thiosulfate-driven autotrophic denitrification biofilters filled with different materials. The efficiency of SIVR-BF in nitrate removal was higher than that of VR-BF. The phosphate removal in SIVR-BF was mainly through the formation of FePO4 and Fe-3(PO4)(2)(OH)(2). Sulfur and iron cycles in SIVR-BF contributed to nitrate removal and electron utilization.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Changzi Guo, Xuli Zhang, Wanqin Zhao, Yi Han, Liying Pei, Yinping Hou, Dangcong Peng
Summary: A sulfide autotrophic denitrification microbial fuel cell (MFC) was established to study the removal of nitrogen and sulfur and electricity generation. The results showed that simultaneous desulfurization and nitrate removal were feasible. Higher sulfide concentration favored electricity generation. Nitrate concentration had less effect on sulfide removal and electricity production. Lower external resistance improved nitrate removal efficiency. The microbial community structure differed between the anode and cathode chambers. This research provides a new idea and method for sulfur-and nitrogen-containing wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Zhiju Liu, Yujie Qin, Xiangyin Liu, Lan Yang, Siyuan Gong, Shaohong Zheng, Xinyue Lin, Junfeng Yang, Tiansheng Lu, Jiannv Chen
Summary: The effects of substance concentration and glycine betaine on nitrogen removal and microbial communities in the sulfide autotrophic denitrification and Anammox coupling process were investigated. It was found that increasing substance concentration decreased the efficiency of ammonia and total nitrogen removal, but adding glycine betaine improved the removal efficiency. High-throughput sequencing results showed that increasing substrate concentration led to a decrease in Anammox bacteria abundance and an increase in Thiobacillus abundance.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Wei Wang, Lei Zhao, Miao Yu, Tian -Ming Yin, Duu-Jong Lee, Nan-Qi Ren, Chuan Chen
Summary: This study investigated the effects of feeding gas type and N/S ratio on a novel SDMO system through batch tests. The results showed that increasing the N/S ratio decreased the nitrate removal efficiency but increased the DAMO/AD contribution. Using biogas as a feeding gas enhanced nitrate removal efficiency, and different H2S contents had varied effects on the microorganism community structure and functional genes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Jingde Ma, Jingyue Wei, Qiaoping Kong, Zemin Li, Jianxin Pan, Ben Chen, Guanglei Qiu, Haizhen Wu, Shuang Zhu, Chaohai Wei
Summary: The novel ferrous sulfide (FeS)-driven autotrophic denitrification (AuDen) and anaerobic ammonium oxidation (Anammox) coupled system (FS-DADAS) shows promising nitrogen removal performance, achieving over 80% total nitrogen (TN) removal in laboratory testing. The system demonstrated stable denitrification effects over long-term operation, with 100% NO3--N removal and NH4+-N concentrations lower than 8.11 mg L-1 in the effluent.
Article
Environmental Sciences
Xiangyu Sun, Chunyu Wang, Junbo Zhang, Zhongtai Chen, Ting Yu, Guangjing Xu, Jingni Xiao
Summary: Due to stricter standards for municipal wastewater discharge, further treatment is needed for nitrate in secondary effluent of wastewater treatment plants, which increases the costs. This study examined the possibility of simultaneous removal of nitrate and phosphorus from simulated secondary effluent using a sponge-iron-based denitrifying filter. The results showed that over 60% of the nitrate was reduced through abiotic nitrate reduction by the sponge iron. However, the sponge iron easily scaled and a little glucose was added to dissolve the rust and promote biological nitrate denitrification.
Article
Environmental Sciences
Yingwen Mai, Yuhai Liang, Mingshuang Cheng, Zihao He, Guangwei Yu
Summary: The study demonstrated that the simultaneous removal of AVS, ferrous iron, and ammonia nitrogen in black-odorous sediment can be achieved through autotrophic denitrification coupled with anammox using nitrate addition. The presence of nitrite accumulation indicated partial denitrification during the process. Microbes related to autotrophic denitrification and anammox bacteria were detected in all systems, confirming the effectiveness of the method.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Shi-Cai Han, You -Wei Cui, Hui-Juan Yan, Yu -Bo Cui, Zhao-Bo Chen
Summary: The sulfur-iron (II) autotrophic denitrification (SIAD) technology can remove nitrogen and phosphorus from wastewater without an organic carbon source. However, its limited nutrient removal load hinders large-scale application. To overcome this, a novel bioaugmentation technology using magnetite was proposed to generate an endogenous magnetic field (EMF). The addition of magnetite significantly increased nitrate removal load and enhanced phosphate removal efficiency in the biofilters. The EMF also improved enzyme activity and microbial population, while reducing sulfate production. This study provides a solution to the limitations of SIAD biofilters, promoting their large-scale application as a cost-effective post-denitrification process.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Xianxin Luo, Chengyi Peng, Penghui Shao, Aiping Tang, Anping Huang, Qi Wu, Longhui Sun, Liming Yang, Hui Shi, Xubiao Luo
Summary: The IHAD-MnO process developed in this study shows potential for high nitrate removal efficiency and manganese oxidation efficiency in organic-limited polluted water. It provides a highly efficient and cost-effective solution for sustainable water treatment technologies with less carbon consumption and greenhouse gas emission.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Zhi Qin, Cong Wei, Tuo Wei, Zemin Li, Zijun Pang, Pei Luo, Chunhua Feng, Guanglei Qiu, Chaohai Wei, Haizhen Wu, Yahuan Peng, Chengfu Jiang, Sergei Preis
Summary: The application of advanced biological treatment technology can improve the effluent quality of coking wastewater treatment plants while reducing material and energy input. The diversity of biological process combinations affects the variety of microorganisms and biochemical reactions, thus influencing effluent quality.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Yucheng Tian, Hang Chen, Liping Chen, Xuhan Deng, Zekun Hu, Cenchao Wang, Chaohai Wei, Guanglei Qiu, Stefan Wuertz
Summary: Glycine does not appear to be an effective carbon source for the majority of PAOs and GAOs in full-scale and lab-scale systems, and other community members do not utilize glycine under anaerobic or aerobic conditions.
Article
Engineering, Chemical
Hang Chen, Yucheng Tian, Zekun Hu, Cenchao Wang, Peiran Xie, Liping Chen, Fan Yang, Yunyao Liang, Chunyan Mu, Chaohai Wei, Yen-Peng Ting, Guanglei Qiu, Yonghui Song
Summary: This study reveals the key role of bis-(3'-5')-cyclic dimeric guanosine monophosphate (c-di-GMP) in membrane biofouling process in membrane bioreactor (MBR). The high intracellular c-di-GMP levels in membrane foulants were strongly correlated to elevated extracellular polymeric substances (EPS) contents, leading to accelerated membrane fouling rates. The enrichment of specific bacteria related to c-di-GMP and their stronger c-di-GMP metabolic abilities in membrane foulants highlight the importance of c-di-GMP second-messenger pathway in regulating EPS production and governing the membrane biofouling process.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Guanglei Qiu, Yingyu Law, Rogelio Zuniga-Montanez, Xuhan Deng, Yang Lu, Samarpita Roy, Sara Swa Thi, Hui Yi Hoon, Thi Quynh Ngoc Nguyen, Kaliyamoorthy Eganathan, Xianghui Liu, Per H. Nielsen, Rohan B. H. Williams, Stefan Wuertz
Summary: Recent research has shown that enhanced biological phosphorus removal (EBPR) from municipal wastewater can be achieved at higher temperatures, around 30 degrees C and 35 degrees C. The study found that a slow-feeding strategy and sufficiently high carbon input are important for maintaining high and stable EBPR performance.
Article
Engineering, Environmental
Liping Chen, Hang Chen, Zekun Hu, Yucheng Tian, Cenchao Wang, Peiran Xie, Xuhan Deng, Yushen Zhang, Xia Tang, Xueran Lin, Biqing Li, Chaohai Wei, Guanglei Qiu
Summary: This study analyzed the bioenergetics of PAOs and GAOs in full-scale wastewater treatment plants. Proton motive force was found to be the key driving force for the uptake of volatile fatty acids and amino acids. The study also revealed differences in the bioenergetics of VFA uptake between PAOs and GAOs.
Article
Engineering, Environmental
Helen Julian, Novesa Nurgirisia, Guanglei Qiu, Yen-Peng Ting, I. Gede Wenten
Summary: Membrane distillation (MD) has great potential for wastewater treatment, but there are challenges such as fouling and wetting. This review highlights the possibility of applying dense membrane to promote the application of MD in wastewater treatment, and summarizes the development and performance of self-standing and composite dense membranes in this field.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Microbiology
Baoshan Zhang, Jinsi Deng, Junting Xie, Haizhen Wu, Cong Wei, Zemin Li, Guanglei Qiu, Chaohai Wei, Shuang Zhu
Summary: The hydrolytic acidification process is effective for denitrogenation and increasing the biological oxygen demand/chemical oxygen demand ratio in coking wastewater treatment. It removes more than 80% of total nitrogen and provides carbon sources for nitrification. The microbial community in the hydrolytic bioreactor, dominated by Bacteroidetes, Betaproteobacteria, and Alphaproteobacteria, plays a key role in denitrogenation and degradation of refractory contaminants.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Environmental Sciences
Shuang Zhu, Jinsi Deng, Xiaobao Jin, Haizhen Wu, Cong Wei, Guanglei Qiu, Sergei Preis, Chaohai Wei
Summary: In this study, a biological treatment method combining anaerobic, aerobic, hydrolytic, and aerobic reactors was designed for coking wastewater. The microbial community in this unique toxic habitat was analyzed using 16S rRNA genes. The results showed variations in dominant microbial groups among different reactors, and correlations between microbial communities and treatment efficiency and load.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Xuhan Deng, Jing Yuan, Liping Chen, Hang Chen, Chaohai Wei, Per H. Nielsen, Stefan Wuertz, Guanglei Qiu
Summary: This study systematically analyzed the occurrence and characteristics of CRISPR-Cas systems and prophages in Ca. Accumulibacter members. The results showed that 28 Ca. Accumulibacter genomes encode CRISPR-Cas systems, providing adaptive resistance to phage predation. The study also revealed high relative abundances of Ca. Accumulibacter with CRISPR-Cas systems in laboratory-scale EBPR bioreactors, indicating their specific resistance to phages.
Article
Environmental Sciences
Lichao Nengzi, Ying Jiang, Zhirong Fang, Qiyuan Hu, Guanglei Qiu, Haitao Li
Summary: The in situ generation of biological manganese oxides (BMOs) in the biological aerated filter (BAF) can significantly improve the removal efficiency of CODMn, and the influent Mn2+ concentration has a certain impact on the removal of CODMn and NH4+-N.
Article
Environmental Sciences
Lichao Nengzi, Lin Meng, Yong Qiu, Xiaoju Li, Keniu Didi, Haitao Li, Guanglei Qiu
Summary: A pilot-scale biofilter was established to investigate the influence of nitrite on organic matter and manganese removal and on the kinetics. The results showed that nitrite affected the removal of organic matter and manganese during the start-up and ammonia increasing process.
Article
Environmental Sciences
Acong Chen, Xianghong Guan, Zijun Pang, Zemin Li, Xiong Ke, Gengrui Wei, Zhi Qin, Yao Chen, Haizhen Wu, Guanglei Qiu, Yun Hu, Chaohai Wei
Summary: In this study, a full-scale double physicochemical synergistic OHHO process was used to investigate the distribution of various cyanides in the secondary effluent of coking wastewater treatment plants. The study found that cyanides tend to dissolve and be released under aerobic conditions and precipitated or be adsorbed under anaerobic/hydrolytic conditions. The toxicity and biochemical stability of cyanide conjugates play a role in the functional control of ammonification-nitritation-nitrification. Polymetallic competitive inhibition and pi bond activation between coexisting ligands and metal ions help maintain the balance between ionization and complexation of CN-. The study explored the biological function and migration behavior of cyanide as an indicator in wastewater and water environments and proposed a feasible cyanide removal strategy via polymetallic competition. The synergy between competitive inhibition and activation owing to the coexistence of diverse ligands may benefit the stable occurrence of cyanides in the natural water environment, which is crucial for understanding the geochemical balance and cycle of characteristic pollutants.
Article
Environmental Sciences
Tuo Wei, Jiamin Pan, Xiong Ke, Haibo Gan, Acong Chen, Xianghong Guan, Zixin Ban, Zemin Li, Gengrui Wei, Cong Wei, Guanglei Qiu, Haizhen Wu, Chaohai Wei
Summary: A mechanism model for the treatment of coking wastewater using the novel O/H/O process was established in this study. The model accurately simulates the biological reaction processes in the O/H/O system and provides strategies for the removal of pollutants from industrial wastewaters with high toxicity and high C/N ratio.
Article
Engineering, Environmental
Hasti Daraei, Kimia Toolabian, Ian Thompson, Guanglei Qiu
Summary: This study found that the toxicity mechanism of ZnO-NPs towards microbial communities is dependent on dosage, exposure time, and ROS production level, leading to reduced activity of enzymes essential for nitrogen removal and a shift in bacterial community composition. Further research could help establish environmental standards for NPs applications and emissions.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Environmental Sciences
Zhao Yang, Xiaoyue Kang, Ben Chen, Guanglei Qiu, Jingyue Wei, Fusheng Li, Chaohai Wei
Summary: This study demonstrates that pretreatment of activated sludge can increase the reaction speed during anaerobic digestion and methane production. Analyzing the changes in the extracts allows for evaluation of sludge structure and extracellular polymeric substances, providing insights into the effects of pretreatment on methane production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(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)
