Article
Water Resources
Dimitrios G. Giarikos, Jessica Brown, Reza Razeghifard, Duy Vo, Ammy Castillo, Nikhil Nagabandi, Justin Gaffney, Miriam Zelden, Anna Antakshinova, Sara Rodriguez, Safiyah Muhammad
Summary: Neochloris minuta and Neochloris alveolaris grown in nitrogen-rich and nitrogen-depleted media were tested for their maximum biosorption capacities and adsorption efficiencies for heavy metals. Removal of nitrogen resulted in increased lipid content, decreased protein content, and enhanced metal adsorption capacities. N. alveolaris showed the highest adsorption capacities for all five metals, with the highest adsorption efficiency percentages ranging from 50.61% to 87.10%.
APPLIED WATER SCIENCE
(2021)
Article
Microbiology
Tan Liu, Zhihui Chen, Yunhua Xiao, Mingmin Yuan, Chenkai Zhou, Gang Liu, Jun Fang, Bo Yang
Summary: Nitrogen limitation and starvation can increase the lipid content of microalgal cells but decrease biomass productivity, pigment concentration, and protein content. Three-day nitrogen starvation is a suitable strategy to produce lipid-rich biomass and causes changes in cell morphology. Saturated fatty acids dominate, making microalgae a potential feedstock for biodiesel production.
Review
Acoustics
Ying Liu, Xin Liu, Yan Cui, Wenqiao Yuan
Summary: Microalgae have potential as a feedstock for various industries, and ultrasound disruption is an effective method for releasing important biomolecules. Optimizing ultrasound parameters and combining ultrasound with other disruption methods can enhance the efficiency of cell disruption and extraction. Further research is needed for scaling up ultrasound extraction while maintaining performance and energy efficiency.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Agricultural Engineering
Yingying Ke, Jun Chen, Taotao Dai, Ruihong Liang, Wei Liu, Chengmei Liu, Lizhen Deng
Summary: To facilitate biomolecules extraction and bioaccessibility of Chlorella pyrenoidosa, a novel industry-scale microfluidization (ISM) was used to disrupt cells effectively. Microscope images showed ISM damaged cell integrity, disorganized cell wall structure, pulverized cell membrane and promoted the release of intracellular components. The decrease of particle size and the increase of ζ-potential also confirmed the cell disruption. The cell breakage ratio of sample treated at 120 MPa was 98%. Compared with untreated samples, total soluble solid content and protein extraction rate of the sample treated at 120 MPa increased by 2 degrees Brix and 12%. Protein was degraded by ISM, the release of intracellular protein and the reduction of molecular weight increased protein digestibility by 20% in in vitro gastric phase. Lipid yield and chlorophyll b content were also increased by ISM. These results provided a new solution to cell disruption of microalgae and expanded the application field of ISM.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Luis Loureiro, Luis Machado, Pedro Geada, Vitor Vasconcelos, Antonio A. Vicente
Summary: Downstream processes in microalgae are hindered by the rigid cell wall, so different cell disruption methods were optimized. Sonication and bead milling were found to be the most efficient, followed by high-speed homogenization. Microwave and freeze-thaw cycles had little impact on the cells. Considering the results and energy consumption, bead milling is the most efficient method.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Engineering, Chemical
Rashi Vishwakarma, Anushree Malik
Summary: A green extraction process is proposed to reduce energy and petroleum solvent consumption, while maintaining environmental safety and quality. The study focuses on generating a highly permeable cell using crude fungal enzymes, enabling simultaneous cultivation and extraction. A novel pretreatment method combining partial enzymatic digestion and maintaining viability of microalgae cells allows for further product recovery from the same biomass.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Agricultural Engineering
Hao Guo, Jun Cheng, Yuxiang Mao, Lei Qian, Weijuan Yang, Ji-Yeon Park
Summary: In this study, ultrasound-assisted TEPDA was used to destruct the thick cell wall of Nannochloropsis oceanica, reducing cell wall thickness and achieving efficient lipid extraction.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Greta Canelli, Patricia Murciano Martinez, Sean Austin, Mark E. Ambuhl, Fabiola Dionisi, Christoph J. Bolten, Roberta Carpine, Lukas Neutsch, Alexander Mathys
Summary: This study investigated the composition and morphology of cell wall polysaccharides in heterotrophic Crypthecodinium cohnii and Chlorella vulgaris during growth. Glucose was found to be the major component of CWPSs and exopolysaccharides in C. cohnii, while C. vulgaris exhibited changes in cell wall thickness at different growth stages. Understanding microalgae cell wall structure can aid in developing more efficient biorefinery approaches.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Konstantin Frick, Tobias Ebbing, Yen-Cheng Yeh, Ulrike Schmid-Staiger, Guenter E. M. Tovar
Summary: This study compared the beta-glucan production during nitrogen depletion in three different microalgae species and determined the most promising species. The results showed that Phaeodactylum tricornutum had the highest yield, but Monodopsis subterranea had a higher volumetric yield. Additionally, Phaeodactylum tricornutum produced co-products such as coenzyme Q10 and fucoxanthin, while Monodopsis subterranea had a higher EPA content. Overall, both Phaeodactylum tricornutum and Monodopsis subterranea are suitable for beta-glucan production in flat panel airlift reactors.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Md Mijanur Rahman, Nushin Hosano, Hamid Hosano
Summary: Microalgae have great potential as a sustainable source for various compounds, and understanding the cell disruption and extraction techniques is crucial for improving efficiency and exploring new methods. This review provides an overview of microalgal cell disruption techniques, analyzes their performance and challenges, and discusses the potential of pulsed electric field-assisted treatments as an effective option for microalgae compound extraction.
Article
Biotechnology & Applied Microbiology
K. V. Ajayan, K. Saranya, C. C. Harilal
Summary: This study investigated the effects of Indole-3-butyric acid (IBA) supplementation combined with nitrogen limitation on the biomass, biochemical and fatty acid composition of three selenastracean microalgae. The results showed that IBA supplementation increased the biomass production and influenced the synthesis of chlorophyll and carotenoids. The combination of nitrogen limitation and IBA significantly increased the lipid content and provided valuable feedstock for various industries.
JOURNAL OF BIOTECHNOLOGY
(2022)
Article
Engineering, Chemical
Maria Catalina Quesada-Salas, Guillaume Delfau-Bonnet, Gaelle Willig, Nils Preat, Florent Allais, Irina Ioannou
Summary: The study found that microwaves were most effective for lipid extraction from Nannochloropsis oceanica, while ultrasound was more efficient for Nannochloropsis gaditana. The choice of cell disruption process should take into account various parameters such as the type of microalgae studied, total lipid extraction, desired fatty acids, and energy consumption.
Article
Agricultural Engineering
Ronald Halim, Ioannis Papachristou, George Q. Chen, Huining Deng, Wolfgang Frey, Clemens Posten, Aude Silve
Summary: Novel cell-disruption combinations were used to study the mass transfer of lipids and proteins in Nannochloropsis slurries. The transfer of neutral lipids depended on the disintegration of cell walls, while the transfer of proteins was influenced by both cell-wall disintegration and protein linkage severance. Combinations that primarily involved physical disruption released soluble proteins, while combinations that hydrolysed chemical linkages in addition to physical disruption released both soluble and structural proteins.
BIORESOURCE TECHNOLOGY
(2022)
Article
Food Science & Technology
Greta Canelli, Patricia Murciano Martinez, Billie Maude Hauser, Isabelle Kuster, Zhen Rohfritsch, Fabiola Dionisi, Christoph J. Bolten, Lukas Neutsch, Alexander Mathys
Summary: This study aimed to increase the bioaccessibilities of lipids and proteins in Chlorella vulgaris cells through enzymatic degradation of the cell wall while preserving cell integrity and oxidative stability. The results showed that a specific combination of enzymes slightly increased protein bioaccessibility but had no significant effect on lipid bioaccessibility. High-pressure homogenization (HPH) was effective in improving lipid and protein bioaccessibilities as well.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Bert Coleman, Christof Van Poucke, Bavo De Witte, Valentina Casciaro, Tanja Moerdijk-Poortvliet, Koenraad Muylaert, Johan Robbens
Summary: Adding microalgae into food can affect the flavor significantly, and it is crucial for consumer acceptance. Understanding the impact of processing, storage, and disruption techniques on the flavor of microalgae biomass is necessary for developing tasty food products. This study examined the sensory quality of Nannochloropsis sp. biomass under different drying techniques and cell disruption methods. The results showed that freeze-drying had no effect on the flavor, while thin-layer oven drying resulted in a bitter taste and musty odor. Spray drying reduced the odor intensity and grassy odor, and cell disruption led to intense grassy and fish oil odors. Dark storage of intact and disrupted Nannochloropsis paste also influenced the volatile profile negatively. These findings can be applied in downstream food processing to maintain or enhance the flavor properties of harvested microalgae biomass for specific food products.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Review
Biotechnology & Applied Microbiology
Sarah D'Adamo, Richard Kormelink, Dirk Martens, Maria J. Barbosa, Rene H. Wijffels
Summary: Viruses, besides being pathogens, play a crucial role in evolution and can influence host fitness, population dynamics, and community structures. Microalgae biotechnology is a rapidly advancing field that investigates the use of photosynthetic microorganisms for various industries. The study of viruses infecting microalgae has become an important subject of ecological research, and so far, 63 viruses that infect eukaryotic microalgae have been identified and cultured.
BIOTECHNOLOGY ADVANCES
(2022)
Article
Biotechnology & Applied Microbiology
Markus Schulze, Julia Niemann, Rene H. Wijffels, Jens Matuszczyk, Dirk E. Martens
Summary: This study demonstrates a rapid and efficient process intensification strategy by implementing N-1 perfusion and high inoculum cell densities to improve an N-stage fed-batch process, combined with productivity enhancers. By rapidly intensifying the conventional process in small-scale bioreactors, the space-time yield was successfully doubled while maintaining product quality.
BIOTECHNOLOGY PROGRESS
(2022)
Article
Biotechnology & Applied Microbiology
Jie Lian, Georg Steinert, Jeroen de Vree, Sven Meijer, Christa Heryanto, Rouke Bosma, Rene H. Wijffels, Maria J. Barbosa, Hauke Smidt, Detmer Sipkema
Summary: This study investigated the bacterial diversity in indoor and outdoor algae reactors, and found significant differences in bacterial community composition between different reactors and over time. The presence of certain bacterial taxa was significantly correlated with nitrate concentration.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Review
Biochemical Research Methods
Marcel Janssen, Rene H. Wijffels, Maria J. Barbosa
Summary: Microalgae have high protein expression levels and can be produced in contained cultivation systems with low water requirements. Although the current production scale is small, techno economic analysis has shown good potential for scale-up and cost reduction. Microalgal protein has a suitable amino acid composition for food and feed requirements, and high quality can be guaranteed through novel biomass pre-treatment steps.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Robin Barten, Michelle Kleisman, Giulia D'Ermo, Harm Nijveen, Rene H. Wijffels, Maria J. Barbosa
Summary: High temperatures negatively affect cell physiology and reduce growth and productivity in photobioreactors. Supra-optimal temperature causes cell cycle arrest and changes in metabolic activity. It also affects the composition of fatty acids and pigments in microalgae. Gene expression related to photosynthesis, carbon fixation, and metabolism is downregulated, while genes related to proteasome, autophagy, and endocytosis are upregulated.
SCIENTIFIC REPORTS
(2022)
Article
Biotechnology & Applied Microbiology
Christian Sudfeld, Aamna Kiyani, Hortense Buckens, Michal Hubacek, Rene H. Wijffels, Maria J. Barbosa, Sarah D'Adamo
Summary: Medium chain fatty acids (MCFAs) are compounds of commercial interest with applications in various industries. This study successfully transferred an enzyme from Cuphea palustris to Nannochloropsis oceanica microalgae to accumulate MCFAs.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Biotechnology & Applied Microbiology
Jesus Ruiz, Rene H. Wijffels, Manuel Dominguez, Maria J. Barbosa
Summary: The debate over the economical choice between heterotrophic and autotrophic cultivation of microalgae continues. A study analyzed the costs and limitations of both methods, finding that autotrophic cultivation shows potential to compete with heterotrophic production if the production costs can be further reduced.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Agricultural Engineering
Iulian Zoltan Boboescu, Antoinette Kazbar, Lars Stegemuller, Piet Lazeroms, Thanasis Triantafyllou, Fengzheng Gao, Calvin Lo, Maria J. Barbosa, Michel H. M. Eppink, Rene H. Wijffels
Summary: Cellular agriculture offers a more sustainable option for food production, and Tisochrysis lutea microalgae is a valuable source of nutrients. Mild targeted acoustic treatment has been found to disrupt cells and reduce energy requirements.
BIORESOURCE TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Mariana N. Sao Pedro, Mafalda S. Santos, Michel H. M. Eppink, Marcel Ottens
Summary: This research presents the development of a real-time process analytical technology tool for monitoring the formation of antibody aggregates. By using miniaturized sensors and a zigzag microchannel structure, fast and efficient mixing is achieved, providing important real-time feedback and process control for fluorescence-based protein aggregate detection.
BIOTECHNOLOGY JOURNAL
(2023)
Article
Engineering, Environmental
Rocca C. Chin-On, Maria J. Barbosa, Rene H. Wijffels, Marcel Janssen
Summary: Microalgae are a promising renewable feedstock for various biobased products. To reduce production costs, a novel V-shaped photobioreactor is proposed to capture and dilute sunlight, thereby improving photosynthetic efficiencies and biomass productivities of microalgae.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Biotechnology & Applied Microbiology
Maria J. Barbosa, Marcel Janssen, Christian Sudfeld, Sarah D'Adamo, Rene H. Wijffels
Summary: The urge for food security and sustainability has driven the development of microalgal biotechnology. Microalgae, as microorganisms, have the potential to be a valuable resource for food, feed, energy, and chemicals. With faster growth and higher productivity than plant crops, microalgae have the advantage of not requiring agricultural land and having efficient fertilizer uptake. They are also seen as a replacement for soy protein, fish oil, and palm oil, and can be utilized in industrial biotechnology for various purposes.
TRENDS IN BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Edgar Suarez Garcia, Carlota F. Miranda, M. Teresa Cesario, Rene H. Wijffels, Corjan van den Berg, Michel H. M. Eppink
Summary: A novel extraction and fractionation concept using Ionic Liquids (ILs) was proposed to extract and recover proteins and carbohydrates from macroalgae. The process involved IL-assisted mechanical shear for initial extraction and two-phase partitioning or ultrafiltration for fractionation. The selective extraction of proteins and the preservation of their native structure were demonstrated. The potential application of this approach in the biorefinery of macroalgae was highlighted.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Deepak Raikwar, Korneel Van Aelst, Thijs Vangeel, Sandra Corderi, Joost Van Aelst, Sander Van den Bosch, Kelly Servaes, Karolien Vanbroekhoven, Kathy Elst, Bert F. Sels
Summary: Unsatisfactory solubility and recalcitrant condensed structures of isolated lignins (technical lignins) severely limit their processability. Understanding the structural and physicochemical properties of isolated lignins is crucial for explaining their performance in solubilization and further depolymerization. This study investigated the solubilization and depolymerization of organosolv lignins from three different sources. Solubility tests were conducted in six organic solvents, and solubilization behavior was described based on structural properties and investigated under different conditions. Strong structural correlations between parent lignin/subfractions and depolymerized lignin oils were derived.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Food Science & Technology
Jose Villacis-Chiriboga, Barbara Prandi, Jenny Ruales, John Van Camp, Stefano Sforza, Kathy Elst
Summary: This research investigated the valorization of soursop seeds to produce oil and proteins. A new mild protein extraction method (Pressurized Water Extraction, PWE) was developed and optimized, and compared with conventional alkaline extraction. The impact of the de-oiling technique was also investigated. The extracted proteins were evaluated in terms of physicochemical composition, amino acid content, and techno-functional properties.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Lukas M. Trebuch, Jasper Sohier, Sido Altenburg, Ben O. Oyserman, Mario Pronk, Marcel Janssen, Louise E. M. Vet, Rene H. Wijffels, Tania V. Fernandes
Summary: Photogranules are a new wastewater treatment technology that uses solar energy for low-energy water treatment and shows potential for nutrient recovery. In this study, polyphosphate accumulating organisms (PAOs) were introduced to photogranules, resulting in increased phosphorus removal. The addition of a 12-hour anaerobic phase during nighttime did not negatively affect the PAOs and phototrophs but decreased nitrogen removal and biomass productivity.
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)