Article
Green & Sustainable Science & Technology
Lei Zhang, Pu Yang, Kongyun Zhu, Xinran Ji, Jiao Ma, Lan Mu, Fahim Ullah, Wenxiang Ouyang, Aimin Li
Summary: This study investigates the impact of co-treatment of food waste and sewage sludge on the performance of the integrated system. The results show that there is a synergistic enhancement at the optimal ratio, leading to increased methane production and improved combustion characteristics. Additionally, the co-treatment increases the daily energy output and specific energy output of the full-scale plant.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Abdelmoumin Yahia Zerga, Muhammad Tahir, Hajar Alias
Summary: A ternary heterojunction of waste sewage sludge (WSS) with sludge metals anchored over g-C3N4 nanorods showed significantly improved photocatalytic H2 evolution under visible light. The presence of oxidized and other metals in WSS promoted charge carrier separation, leading to a maximum H2 yield of 195 μmol/h·g. The formation of a heterojunction, effective charge carrier separation, and synergistic effects of multiple elements in WSS contributed to the enhanced photocatalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Xingdong Wang, Victor Wei-Chung Chang, Zhiwei Li, Yang Song, Chunxing Li, Yin Wang
Summary: The study revealed that food waste digestate (FWD) as an additive can significantly reduce the heavy metal content in blended biochar, thereby improving its ecological risk index and phytotoxicity index.
Article
Engineering, Environmental
Yanyan Zhang, Jiazhe Bai, Jiane Zuo
Summary: This study used the CE technology to convert food waste and sewage sludge into high-value medium chain fatty acids, achieving the goal of reducing environmental pollution and recovering valuable resources. The experiments showed that a higher concentration of medium chain fatty acids can be obtained when using 100% food waste or 75% food waste with a ratio of 3:1 with sewage sludge. Furthermore, a semi-continuous fermentation experiment indicated the feasibility of long-term medium chain fatty acids production without the need for external electron donors.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
C. Fernando-Foncillas, C. Varrone
Summary: This study focused on co-fermenting sewage sludge and food waste to produce carboxylic acids, particularly hexanoic acid, with optimal operating conditions determined through experimental design and statistical optimization. Continuous fermentation experiments showed higher carboxylate titer and favored chain elongation compared to batch mode.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Joo-Youn Nam
Summary: Given the rising demand for hydrogen due to its eco-friendly nature, this study explores efficient methods for hydrogen production. It investigates dark-fermentative hydrogen production using alkali-pretreated food waste and sewage sludge. The results show that alkali pretreatment effectively increases hydrogen yields, with a maximum specific hydrogen production rate of 163.8 mL H-2/g volatile suspended solid/h and a maximum hydrogen production potential of 152.1 mL H-2/g VS.
Article
Green & Sustainable Science & Technology
Marco Gottardo, Joan Dosta, Cristina Cavinato, Simona Crognale, Barbara Tonanzi, Simona Rossetti, David Bolzonella, Paolo Pavan, Francesco Valentino
Summary: The application of a biorefinery technology value chain within the urban scenario can convert organic substrates into marketable and added-value products. A pilot-scale dark fermentation process was used to produce volatile fatty acids and hydrogen from sewage sludge and food waste mixture. By changing the hydraulic retention time and applying short-term hyperthermophilic hydrolysis, different operating conditions were monitored and the conversion yield and stability were evaluated. The study showed that the hydrolysis step, as well as reducing the hydraulic retention time, positively affected hydrogen production and fermentation yield.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Agricultural Engineering
Zihan Zhu, Yanyan Guo, Youcai Zhao, Ruina Zhang, Yi Yu, Meilan Zhang, Tao Zhou
Summary: The fermentation of perishable organic waste improved the removal efficiency of organics and nitrogen in sewage, with the obtained liquid serving as a cost-efficient carbon source for denitrification.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Isaac Owusu-Agyeman, Elzbieta Plaza, Zeynep Cetecioglu
Summary: This study investigated the alkaline co-fermentation of primary sludge and external organic waste, and examined the effects of substrate ratios on VFA production, system robustness, and microbial community dynamics. The results showed that VFA production increased with increasing OW fraction in the substrate, and lowering pH led to changes in microbial structure and restoration of VFA production.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Chaoqian Wang, Xinyan Zhang, Wenlong Wang, Jing Sun, Yanpeng Mao, Xiqiang Zhao, Zhanlong Song
Summary: This study proposed a stepwise microwave synergistic pyrolysis (SMSP) approach to produce sludge-based biochar with immobilized heavy metals. The results showed that higher pre-pyrolysis temperature and longer time were more suitable for heavy metal immobilization through vitrification. The optimal sludge-based biochar had higher residual ratio, lower leaching ratio, and lower ecotoxicity risk compared to conventional sludge-based biochar.
Article
Agricultural Engineering
Yemei Li, Jialing Ni, Hui Cheng, Aijun Zhu, Guangze Guo, Yu Qin, Yu-You Li
Summary: In a continuous experiment in a high-solid membrane bioreactor, the methane recovery rate reached 98.0% and 89.0% when pure food waste and 25% sewage sludge were used as substrates. Hydrolysis was found to be the rate-limiting step, and methanogenic performance and microbial community were significantly influenced by feed condition.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Qizi Fu, Dongbo Wang, Xiaoming Li, Qi Yang, Qiuxiang Xu, Bing-Jie Ni, Qilin Wang, Xuran Liu
Summary: Hydrogen production from waste activated sludge is a promising technology to recover energy from wastewater treatment plants, but there are challenges such as low organics utilization and rapid hydrogen consumption. Further research and solutions are needed to address these challenges and make the technology more feasible.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Dogukan Tunay, Oznur Yildirim, Bestami Ozkaya, Ahmet Demir
Summary: This study investigated the hydrogen production from organic substances using waste activated sludge from municipal wastewater treatment. The High Rated Activated Sludge (HRAS) process was applied to enhance the organic composition and reduce energy consumption. The results showed that the HRAS process can decrease the energy requirement of wastewater treatment and enable green energy production with lower carbon emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Ingrid R. F. S. Alves, Claudio F. Mahler, Luciano B. Oliveira, Marcelo M. Reis, Joao P. Bassin
Summary: The addition of crude glycerol in anaerobic co-digestion process can significantly increase the production of biogas and methane. Although methane production was transiently inhibited at the highest concentration in the trials, it was restored and even maximized after a period of adaptation.
Article
Engineering, Environmental
Xianli Yang, Jingnan Yang, Xuran Liu, Qing Wang, Dongke Liu, Dongbo Wang
Summary: The widespread use of pharmaceuticals has raised concerns about their potential environmental effects. Previous studies have shown that most of the pharmaceuticals investigated had harmful effects on wastewater or sludge treatment. However, this study found that carbamazepine at environmentally relevant levels increased hydrogen production from anaerobic fermentation of waste activated sludge.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Plant Sciences
Aswathy Udayan, Ashutosh Kumar Pandey, Ranjna Sirohi, Nidhin Sreekumar, Byoung-In Sang, Sung Jun Sim, Sang Hyoun Kim, Ashok Pandey
Summary: In the current global scenario, the world is facing challenges due to population growth, industrialization, and urbanization. This has led to an increased demand for nutrients and renewable energy sources. Microalgae are considered a promising candidate for high-value metabolites and alternative energy sources. However, current cultivation systems for microalgae do not offer feasibility in terms of technology, economics, energy, and environmental sustainability.
PHYTOCHEMISTRY REVIEWS
(2023)
Article
Engineering, Environmental
Choe Earn Choong, So Yeon Yoon, Minhee Kim, Gooyong Lee, Sang-Hyoun Kim, Byong-Hun Jeon, Jaeyoung Choi, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: Hydrophobic sulfur (S) core-shell-layered nano-zero-valent iron (Fe) (S-nZVI) was prepared for NO3- reduction using a post-sulfidation method with varying Fe/S mass ratios. S(0.125)ZVI (Fe/S = 0.125) showed good N-O cleavage properties due to high electron transfer efficiency and low surface passivation. It exhibited higher selectivity of NO3- reduction toward N-2 than sole nZVI in synthetic and actual NO3- groundwater.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Psychology, Biological
Hangsik Shin
Summary: This study evaluated the feasibility of continuous pulse transit time (CPTT) as a non-invasive method for continuous blood pressure estimation. The results showed that CPTT-based blood pressure estimation had good correlations and small root-mean-squared-error, indicating its potential as a non-invasive continuous blood pressure monitoring method.
Article
Agricultural Engineering
Tirath Raj, Raj Morya, K. Chandrasekhar, Deepak Kumar, Shveta Soam, Ravindra Kumar, Anil Kumar Patel, Sang-Hyoun Kim
Summary: Microalgae can convert CO2 into carbohydrates, lipids, and proteins, which can be transformed into renewable energy, chemicals, and materials. However, the difficult-to-degrade cell wall and lack of environmentally friendly pretreatment methods hinder the commercialization of microalgal biorefineries. This article discusses the chemical structure and rigidity of microalgae, and summarizes traditional pretreatment methods. Green solvents like ionic liquids, deep eutectic solvents, and natural deep eutectic solvents show promise in selectively extracting components from microalgae. Further research is needed for the deployment of carbon-neutral technologies, including the design of task-specific solvents, understanding their structural activity, and assessing their environmental toxicity and recyclability. Additionally, integrating microalgal industry with biorefineries can improve waste management, sustainability, and revenue.
BIORESOURCE TECHNOLOGY
(2023)
Review
Agricultural Engineering
Ashutosh Kumar Pandey, Jungsu Park, Jeun Ko, Hwan-Hong Joo, Tirath Raj, Lalit Kumar Singh, Noopur Singh, Sang-Hyoun Kim
Summary: Hydrogen can be produced in an environmentally friendly manner using various organic waste and biomass as feedstock. However, the complexity of biological processes limits their predictability and reliability, hindering scale-up and dissemination. This article reviews the use of machine learning in biohydrogen production technology, which has shown promise in modeling and predicting process performance and microbial population dynamics. Further research on machine learning is needed for designing process control tools and understanding the connection between process performance and microbial populations.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Saint Moon Kim, Young -Bo Sim, Jong-Hyun Baik, Jisu Yang, Ashutosh Kumar Pandey, Hwan-Hong Joo, Ju-Hyeong Jung, Sang-Hyoun Kim
Summary: This study achieved high-rate continuous biohydrogen production by forming H2-producing granules in a pilot-scale dynamic membrane bioreactor. The granules improved hydrogen production rate and yield by altering metabolic flux distribution. The low-cost polyester mesh acted as a carrier for granule formation, and the porous structure of the granules facilitated substrate transfer.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Ashutosh Kumar Pandey, Jungsu Park, Alice Muhorakeye, Raj Morya, Sang-Hyoun Kim
Summary: This study aimed to predict VFAs production from SDBS-pretreated WAS. A lab-scale continuous experiment was conducted at varying HRTs. The highest VFA yield was achieved at an HRT of 2 d, where hydrolysis and acidogenesis showed the highest microbial activities. The ANN model demonstrated high efficiency in learning the relationship between input variables and reactor performance, with satisfactory prediction outcomes.
BIORESOURCE TECHNOLOGY
(2023)
Review
Energy & Fuels
Gayathri Priya Iragavarapu, Syed Shahed Imam, Omprakash Sarkar, Srinivasula Venkata Mohan, Young-Cheol Chang, Motakatla Venkateswar Reddy, Sang-Hyoun Kim, Naresh Kumar Amradi
Summary: To meet the growing energy needs and address the depletion of fossil resources, there is a need to shift from fossil-based feedstocks to organic waste for a competitive, resource-efficient, and low-carbon sustainable economy. Chemical routes for fuel and chemical production have low production costs, but the use of toxic and expensive catalysts make the process unsustainable. Utilizing renewable resources for bioprocessing with a multi-product approach improves resource utilization and contributes to the green economy.
Article
Energy & Fuels
Do-Hyung Kim, Beom-Jung Kang, Sang-Hyoun Kim, Jeong-Hoon Park, Jeong-Jun Yoon
Summary: Adding magnetite (Fe3O4) can reduce the by-products generated from acid hydrolysis of biomass and enhance hydrogen production. This study extracted sugars from Gelidium amansii through acid hydrolysis and evaluated hydrogen production with magnetite supplementation. The addition of magnetite at a concentration of 1.3 g/L or lower increased hydrogen production by 11.4% on average, especially for the main by-product, 5-hydroxymethylfurfural (5-HMF). This strategy could optimize biohydrogen production using Gelidium amansii and reduce detoxification costs.
Article
Biotechnology & Applied Microbiology
Sang Hyun Kim, Hyun Joong Kim, Su Hyun Kim, Hee Ju Jung, Byungchan Kim, Do-Hyun Cho, Jong-Min Jeon, Jeong-Jun Yoon, Sang-Hyoun Kim, Jeong-Hoon Park, Shashi Kant Bhatia, Yung -Hun Yang
Summary: This study identified genes associated with carbon source utilization, electron transfer systems, and hydrogen production systems in Shewanella marisflavi BBL25 through whole-genome sequencing. In addition, introducing the glk gene from S. marisflavi BBL25 into S. oneidensis MR-1 improved glucose consumption. The findings contribute to the understanding of sugar utilization, electron transfer systems, and hydrogen production systems in other Shewanella species.
JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Ranjna Sirohi, V. Vivekanand, Ashutosh Kumar Pandey, Ayon Tarafdar, Mukesh Kumar Awasthi, Amita Shakya, Sang Hyoun Kim, Sang Jun Sim, Hoang A. Tuan, Ashok Pandey
Summary: The transition from fossil fuels to non-conventional sources is necessary for addressing the global energy crisis and environmental issues. Organic waste from various industries can be utilized to produce gaseous fuels through different biochemical strategies. However, current biogas and biohydrogen production practices are inefficient and require interventions to improve biofuel yield. Adding biochar has been shown to enhance gaseous fuel production by adsorbing inhibitors and activating gas-producing microorganisms. This review explores the effect of biochar on gaseous biofuel production and highlights the need for a circular bioeconomy approach.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Agricultural Engineering
Yeelyung Kwon, Jungsu Park, Gi-Beom Kim, Yura Jo, Soyoung Park, Sang-Hyoun Kim
Summary: This study investigates the effects of sludge compositions and organic loading rates (OLRs) on stable biogas production during sludge digestion. The highest average methane production rate of 0.7 L/L & BULL;d is achieved when the OLR, hydraulic retention time, WAS volume fraction, and FOS/TAC ratio are 5.0 g COD/L & BULL;d, 12 days, 0.75, and 0.32, respectively. An increase in OLR promotes bacterial and archaeal abundance and specific methanogenic activity. These results can be applied to the design and operation of sludge digestion for stable, high-rate biogas recovery.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jungsu Park, Roent Dune A. Cayetano, Yeelyung Kwon, Gi-Beom Kim, Yura Jo, Sang-Hyoun Kim
Summary: This study investigated the application of dynamic membrane and alkaline-thermal pretreatment for sludge digestion with a low hydraulic retention time. The results showed that the pretreatment effectively increased methane production and the abundance of methanogenic archaea, while the dynamic membrane enabled stable sludge digestion. Furthermore, the pretreatment was found to promote the growth of hydrolytic bacteria.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biotechnology & Applied Microbiology
Sang Hyun Kim, Jeong Hyeon Hwang, Hyun Joong Kim, Suk Jin Oh, Hyun Jin Kim, Nara Shin, Sang-Hyoun Kim, Jeong-Hoon Park, Shashi Kant Bhatia, Yung-Hun Yang
Summary: The study developed Clostridium acetobutylicum as a superior biohydrogen producer by introducing glyceraldehyde-3-phosphate dehydrogenase (GAPDH) to enhance hydrogen production. The strain CAC824-G containing gapC showed a 66.3% higher hydrogen production than the wild-type strain, with increased NADH and NADPH pools. Overexpression of gapC resulted in increased hydrogen production even in the presence of inhibitors.
ENZYME AND MICROBIAL TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Raj Morya, Fanirintsoa Herivonona Andrianantenaina, Saurabh Singh, Ashutosh Kumar Pandey, Gi-Beom Kim, Jay Prakash Verma, Gopalakrishnan Kumar, Tirath Raj, Sang-Hyoun Kim
Summary: Due to the high demand for rice as a main food crop, the disposal of rice straw becomes a significant waste management issue in rice-producing countries. Open burning is the most common method but it causes environmental problems. However, utilizing rice straw as a raw material for valuable products can be advantageous. This review highlights the use of rice straw as a crucial source of clean energy.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(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)