Article
Agricultural Engineering
Rawitsara Intasit, Benjamas Cheirsilp, Yasmi Louhasakul, Nuttha Thongchul
Summary: Empty fruit bunches from palm trees were used to produce fungal lipids through solid-state fermentation and submerged fermentation. The integrated fermentation process significantly increased lipid production by combining the benefits of dispersed mycelia formation and improved mass transfer. Co-culturing with Trichoderma reesei QM 9414, which produces high levels of beta-glucosidase, further improved lipid yields. Optimizing the inoculum size and performing co-cultures in bioreactors resulted in even higher lipid yield. The fungal fermentation also produced cellulose pulp residues. These strategies provide practical and low-cost options for biomass waste valorization.
BIORESOURCE TECHNOLOGY
(2023)
Article
Energy & Fuels
Minyoung Kim, Dong-Jun Lee, Sungyup Jung, Scott X. Chang, Kun-Yi Andrew Lin, Amit Bhatnagar, Eilhann E. Kwon, Yiu Fai Tsang
Summary: The study focused on converting peanut waste into biofuels through a thermochemical process, using biochar derived from pyrolysis of the waste as a catalyst to enhance reaction kinetics and lower reaction temperature. Biochars produced at different temperatures were effective in transesterification of soybean oil, showing higher yields compared to conventional methods.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Gyeong-Uk Kim, Geon-Soo Ha, B. Mayur Kurade, Shouvik Saha, Moonis Ali Khan, Young-Kwon Park, Woojin Chung, Soon Woong Chang, Krishna Kumar Yadav, Byong-Hun Jeon
Summary: This study developed an integrated process to enhance lipid yield through oleaginous yeast fermentation of microalgal biomass and cost-effectively extract the lipids using a permeable and switchable ionic liquid (IL). The results showed improved lipid production and higher biodiesel yield compared to the conventional process. The study provides an economic and sustainable model for biodiesel production from microalgal biomass.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Environmental Sciences
Ee Shen Ong, Alija Haydar Rabbani, Mahmoud M. Habashy, Omar M. Abdeldayem, Eslam G. Al-Sakkari, Eldon R. Rene
Summary: By 2050, the demand for palm oil is expected to reach 240 million tonnes, creating an opportunity for sustainable biohydrogen production using oil palm biomass and POME. However, the complex structure of these materials limits hydrogen production, requiring proper pre-treatment and process conditions. Research focuses on different waste utilization methods and types of biohydrogen production reactors in order to maximize efficiency.
ENVIRONMENTAL POLLUTION
(2021)
Article
Green & Sustainable Science & Technology
Ahdyat Zain Athoillah, Farah B. Ahmad
Summary: This study successfully isolated two potential oleaginous fungi from palm oil mill effluent (POME). Aspergillus niger showed the highest lipid yield in POME and was proven effective in removing chemical oxygen demand (COD) with a removal rate of 70%.
CLEAN-SOIL AIR WATER
(2022)
Article
Biotechnology & Applied Microbiology
Mohd Haffizi Hasni, Farah Binti Ahmad, Ahdyat Zain Athoillah
Summary: This study investigates the potential of using lignocellulosic biomass as a feedstock for microbial biodiesel production through consolidated bioprocessing. Rhizopus sp. was found to be the most effective lipid producer, and the optimized CBP system yielded biodiesel with promising fuel properties.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Biotechnology & Applied Microbiology
Rawitsara Intasit, Benjamas Cheirsilp, Wasana Suyotha, Piyarat Boonsawang
Summary: In this study, lignocellulolytic enzymes were efficiently produced from industrial crop wastes, specifically palm empty fruit bunches (EFB), using different fermentation modes and co-cultivation of filamentous fungi. Aspergillus tubingensis TSIP9 showed the highest cellulase and xylanase activities, while Trichoderma reesei QM9414 exhibited the highest beta-glucosidase activity. Co-cultivation significantly improved overall enzyme production, leading to enhanced activities of cellulase, xylanase, and beta-glucosidase after optimization and scaling up in a bioreactor with a helical impeller. These enzymes are highly active and stable under specific pH and temperature conditions, making them promising for low-cost production and biorefinery applications.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Multidisciplinary Sciences
Ahmed M. El-Shehawi, Mohamed Alkafafy, Samir El-Shazly, Samy Sayed, Samy Farouk, Saqer Alotaibi, Doaa A. Madkour, Hanem K. Khalifa, Mohamed M. Ahmed
Summary: This study evaluated the CMCase and beta-glucosidase activities of the fungal strain Penicillium sp. FSDE15 using agricultural wastes as carbon sources. The results showed that Penicillium sp. FSDE15 can produce cellulases with high activity in a culture medium with agroindustrial wastes, suggesting a promising alternative for reducing production costs and facilitating their industrial use.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2021)
Review
Green & Sustainable Science & Technology
Nongmaithem Debeni Devi, Angana Chaudhuri, Vaibhav V. Goud
Summary: This review discusses an innovative biofilm cultivation system for microalgae that aims to reduce the cost of biomass recovery and processing. It outlines two main cultivation strategies and highlights the influence of physicochemical parameters on microalgae growth.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Energy & Fuels
Pumin Kongto, Arkom Palamanit, Pichet Ninduangdee, Yashvir Singh, Issara Chanakaewsomboon, Asif Hayat, Makata Wae-hayee
Summary: This study investigated the important characteristics of biomass and biochar from oil palm trunk and oil palm fronds in supporting the growing demand for solid biofuels in Thailand. The results showed that converting oil palm trunk and oil palm fronds into biochar not only improved the fuel and atomic ratios, but also increased the energy content.
Article
Biotechnology & Applied Microbiology
Derek Troiano, Valerie Orsat, Marie-Josee Dumont
Summary: This study explores the conversion of food waste into valuable bio-pigments via solid-state fermentation and achieves high production yields.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Thermodynamics
Simin Shokrollahi, Joeri F. M. Denayer, Keikhosro Karimi
Summary: This study investigated the potential of date palm residues as a source of biomethane and bioethanol production in arid regions. Pretreatment with concentrated phosphoric acid resulted in a cellulose-rich solid fraction and a hemicellulose-rich liquor. Two scenarios were followed, with the first scenario producing methane from the pretreated solid and liquor, and the second scenario producing ethanol from the pretreated solid and methane from the liquor. The second scenario was recommended for the biorefining of date palm residues.
Review
Green & Sustainable Science & Technology
Guangcan Su, Nurin Wahidah Mohd Zulkifli, Hwai Chyuan Ong, Shaliza Ibrahim, Quan Bu, Ruonan Zhu
Summary: Malaysia is actively researching the pyrolysis of oil palm wastes (OPWs), which can convert OPWs into biofuels and biochar to address the issues of fossil fuel shortage and environmental deterioration.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Analytical
Benan Inan, Anil Tevfik Kocer, Didem Balkanli Ozcimen
Summary: Recently, carbon-based solid acid catalysts have gained attention for biodiesel production. These catalysts can be produced from carbon-based materials, such as biomass wastes, to reduce costs and provide solid waste management. In this study, walnut shell, olive stone, and macroalgae were used to produce biochar-based solid acid catalyst for microalgal biodiesel production. The catalyst with the highest sulfonic acid density and preferable structural properties (from walnut shell carbonized and sulfonated) achieved a biodiesel yield of 82% under certain transesterification parameters. Stability tests also showed that the catalyst could be reused up to the 5th cycle. Overall, this study demonstrates a simple, cost-effective, and environmentally friendly approach for biodiesel production using low-cost feedstock and reusable catalyst.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Engineering, Environmental
Le Zhang, Kai-Chee Loh, Agnes Kuroki, Yanjun Dai, Yen Wah Tong
Summary: This article summarizes the current status of key technical steps in microbial biodiesel production, including acidogenic fermentation, lipid accumulation, microbial lipid extraction, transesterification, and biodiesel purification. Emerging membrane-based bioprocesses and genetic/metabolic engineering approaches are promising for improving efficiency. The use of in situ transesterification technologies aided by microwave, ultrasound, and supercritical solvents is recommended for future research to enhance fatty acids synthesis. Technical limitations, cost-effectiveness, and potential industrial development of microbial biodiesel production from bio-wastes are also discussed.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biochemical Research Methods
Rawitsara Intasit, Benjamas Cheirsilp, Wasana Suyotha, Piyarat Boonsawang
Summary: Fungal xylanase was produced from lignocellulosic palm wastes through combined solid-state fermentation (SSF) and submerged fermentation (SmF) by Aspergillus tubingensis TSIP9 in a helical-impeller equipped bioreactor. The combined SSF-SmF promoted xylanase production by 15% and 70% higher than SSF and SmF, respectively. Purified xylanase exhibited higher activity and stability at a wider range of pH and temperature compared to crude xylanase.
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2022)
Article
Agricultural Engineering
Kidakarn Nookwam, Benjamas Cheirsilp, Wageeporn Maneechote, Piyarat Boonsawang, Chontisa Sukkasem
Summary: This study aimed to develop efficient microbial fuel cells for integrated bioelectricity, biodiesel feedstock production, and wastewater treatment. The MFC fed with anaerobic digester effluent from the rubber industry showed the highest power density and simultaneous removal of COD, nitrogen, and phosphorus. By optimizing organic loading rate and incorporating photosynthetic oleaginous microalgae in the cathodic chamber, power density was significantly improved, wastewater was treated sequentially, and high lipid content microalgal biomass was produced. These strategies contribute to sustainable development in bioenergy generation and environmental protection.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Yasmi Louhasakul, Benjamas Cheirsilp
Summary: This study aimed to convert crude glycerol to lipid and lipase using Yarrowia lipolytica and directly transesterify wet yeast into biodiesel via response surface methodology. The combination of waste and surfactants improved yeast growth, lipid productivity, and lipase activity. The direct transesterification followed by acid-catalyst transesterification offered high FAME yields (>90%), showing the efficiency of the process for industrial biodiesel production from microbial lipids.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agronomy
Reza Salehi, Qiuyan Yuan, Sumate Chaiprapat
Summary: In this study, two data-driven models, k-nearest neighbours (k-NN) and support vector machine (SVM), were proposed to predict biogas production from anaerobic digestion. The results showed that the Gaussian-based SVM model performed slightly better than the k-NN model in predicting biogas production. These findings suggest that SVM modeling is a reliable technique for predicting biogas production in anaerobic digestion processes.
Article
Agricultural Engineering
Muhammad Ahmar Siddiqui, Jatuporn Parnthong, Suratsawadee Kungsanant, Sumaeth Chavadej, Sumate Chaiprapat
Summary: This study evaluated the effectiveness of non-ionic surfactants with different structures in biohydrogen production from palm oil mill effluent. The results showed that adding an appropriate amount of surfactants significantly increased the hydrogen yield in the wastewater. For continuous digestion studies, wastewater supplemented with surfactants outperformed pure wastewater in terms of hydrogen production efficiency.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Khanitta Nunui, Piyarat Boonsawang, Sumate Chaiprapat, Boonya Charnnok
Summary: This study developed a method of pretreatment using acid wastewater to enhance the conversion of rubberwood waste into fermentable sugar and ethanol, which showed significant advantages in improving fermentable sugar concentration and yield, as well as reducing water utilization, wastewater generation, and energy consumption in ethanol production. The organosolv pretreatment demonstrated the best performance in enhancing the conversion efficiency of rubberwood waste, indicating its potential for guiding lignocellulosic ethanol production in collaboration with latex factories.
Article
Biochemistry & Molecular Biology
Pooja Vilas Nagime, Apichat Upaichit, Benjamas Cheirsilp, Piyarat Boonsawang
Summary: This study isolated microorganisms capable of producing succinic acid (SA) from various samples, including rumen, sludge, soil, and wastewater. Two isolates, identified as Bacillus velezensis and Enterococcus gallinarum, exhibited high SA concentrations of 50.2 g/L and 66.9 g/L, respectively, with SA yields of 0.836 g/g glucose and 1.12 g/g glucose. These newly isolated strains showed higher SA concentrations and lower unwanted acid formation compared to Actinobacillus succinogenes ATCC 55618. Furthermore, E. gallinarum was cultured using cheap substrates, such as palm oil mill wastewater (POMW) and molasses, achieving a high SA production of 73.9 g/L with a low ratio of other acids to SA (0.917).
BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY
(2023)
Article
Microbiology
Yasmi Louhasakul, Hindol Wado, Rohana Lateh, Benjamas Cheirsilp
Summary: This study evaluated the feasibility of using Saba banana peel as a low-cost fermentable substrate for the production of pigments, xylanase, and cellulase enzymes by Monascus purpureus. The results showed that M. purpureus TISTR 3385 produced higher pigment yields and enzyme activities. Solid-state fermentation of non-sterile peel allowed for the production of pigments and enzymes without sacrificing their production, providing an environmentally-friendly approach for sustainable waste management and industrial applications.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2023)
Article
Environmental Sciences
Pajongsuk Sutarut, Benjamas Cheirsilp, Piyarat Boonsawang
Summary: Oil palm fronds were pyrolyzed to produce biochar, which exhibited a high BET surface area and prominent functional groups. The biochar demonstrated effective removal of pollutants from latex industrial effluent, with significant reductions in COD, SS, sulfate, and sulfide. The kinetic and equilibrium adsorption studies suggested that the pseudo-second-order reaction and Freundlich isotherm model were suitable for describing the adsorption process.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Muhammad Ahmar Siddiqui, Sumate Chaiprapat, Carol Sze Ki Lin, Guanghao Chen
Summary: A side-stream cross-flow anaerobic self-forming dynamic membrane bioreactor (AnSFDMBR) was used in the sulfate reduction, autotrophic denitrification, and nitrification integrated (SANI) process, replacing UASB and middle settling tank. The optimum condition for trans-membrane pressure (TMP)-based backwashing was investigated, and the AnSFDMBR operated continuously for 243 days with good effluent quality. EPS accumulation was minimal in the dynamic layer, indicating the suitability of TMP-based backwashing. TOS, mainly poly-sulfur generated in UASB reactor, played a critical role in fouling in saline wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Reza Salehi, Santhana Krishnan, Mohd Nasrullah, Sumate Chaiprapat
Summary: This study presents a new perspective on the separation of xylose reductase enzyme from reaction mixtures in the large-scale production of xylitol using machine learning techniques. Two types of machine learning models, including an adaptive neuro-fuzzy inference system and a boosted regression tree, were developed and tested. The boosted regression tree model demonstrated superior predictive performance in forecasting membrane flux and xylitol production.
Article
Biotechnology & Applied Microbiology
Pooja Vilas Nagime, Apichat Upaichit, Benjamas Cheirsilp, Piyarat Boonsawang
Summary: Production of bio-succinic acid using microorganisms is a green process, and palm oil mill effluent (POME) is a low-cost substrate for reducing production costs. Diluted POME resulted in higher succinic acid production compared to undiluted and highly diluted POME. MgCO3 was found to be an effective neutralizing agent for succinic acid production, resulting in 11.5 g/L of succinic acid with minimal by-product synthesis.
FERMENTATION-BASEL
(2023)
Article
Biotechnology & Applied Microbiology
Pajongsuk Sutarut, Benjamas Cheirsilp, Piyarat Boonsawang
Summary: Biodesulfurization using BTFs under anoxic conditions is an effective method for biogas clean-up. Immobilizing microbial consortia from different sources improved the efficiency of BTFs for H2S reduction and nitrate removal. The main phyla involved in the biodesulfurization process were Proteobacteria.
FERMENTATION-BASEL
(2023)
Article
Engineering, Environmental
Araya Thongsai, Santhana Krishnan, Pongsak (Lek) Noophan, David Gabriel, Daniel Gonzalez, Sumate Chaiprapat
Summary: This study evaluated the performance and microbial dynamics of an ORP-controlled fluidized bed membrane bioreactor (FMBRPN/A) for treating low COD/ NH4+ anaerobically treated effluent from the seafood processing industry. Results showed high removal rates of COD and total nitrogen, with heterotrophic denitrification accounting for only a small percentage of nitrogen removal. Salinity threat had a significant impact on nitrogen removal but did not affect organic removal. Microbial analysis revealed a shift in dominant bacteria in the biofilm on the membrane surface, indicating a symbiotic relationship between AOB, NOB, DNB, and AMX bacteria. The superior membrane retention of FMBRPN/A facilitated system stability and efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Santhana Krishnan, Praphaphan Homroskla, Kanyarat Saritpongteeraka, Oramas Suttinun, Mohd Nasrullah, Yutthana Tirawanichakul, Sumate Chaiprapat
Summary: This study quantified the inhibition of phenolic compounds in palm oil mill effluent (POME) on anaerobic digestion and found that ozone pretreatment significantly reduced these compounds and improved biogas production.
CHEMICAL ENGINEERING JOURNAL
(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)