Article
Engineering, Environmental
Bi-Cun Jiang, Ye-Chao Tian, Ai -Min Li, Yu-Ze Han, Ze-Tao Wu, Chang Lu, Hai-Ou Song, Rong Ji, Wen-Tao Li, Gregory V. Korshin
Summary: Electrochemical oxidation (EO) is an effective method for treating dissolved organic matter (DOM) in landfill leachate. The use of nonactive boron-doped diamond (BDD) anode has demonstrated the best performance for DOM oxidation. The decrease of Abs420 can be used as an indicator of the shift from the humic acid-like fraction (HA) to the proteinaceous biopolymer fraction (BP) during the EO treatment with BDD anode.
Article
Agronomy
Maysa Mathias Alves Pereira, Ludmila Caproni Moraes, Maria Cristina Troya Mogollon, Carlos Junio Falconi Borja, Mateus Duarte, Victor Hugo Teixeira Buttros, Jose Magno Queiroz Luz, Moacir Pasqual, Joyce Doria
Summary: Based on the concepts of circular economy and bioeconomy, the reuse of agrifood residues through vermicomposting can help solve environmental problems and contribute to sustainable production systems. The study focused on identifying, quantifying and analyzing the physical, chemical, hormonal, amino acid content and microbial biodiversity of different vermicompost formulations. The results showed that the vermicomposts met the minimum requirements for organic fertilizer and had differences in parameters such as phosphorus, auxin, tryptophan, organic matter, and humic and fulvic acids. Inoculation with microorganisms from native forest promoted biodiversity and reduced heavy metal levels in the compost. Vermicomposting is concluded to be a potential tool in reusing agri-food residues and maintaining soil biodiversity and fertility.
Article
Engineering, Environmental
Alyne Moraes Costa, Marllon Robert dos Santos Valentim, Diogo Jose Menezes de Azevedo, Bianca Ramalho Quintaes, Sarah Dario Alves Daflon, Juacyara Carbonelli Campos
Summary: The acute toxic effects of total ammonia nitrogen (TAN), alkalinity, and humic substances (HS) in landfill leachates were investigated for Vibrio fischeri, Danio rerio, Daphnia similis, and Artemia sp. Leachates from two Brazilian landfills with different ages and operating modes were treated through air stripping and membrane filtration. The results showed high toxicity of raw leachate for all test organisms, but the combination of treatments resulted in the most significant reductions in leachate toxicity. This study highlights the importance of removing acute toxicity from complex effluents to prevent potential environmental hazards to the aquatic ecosystem.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Chemistry, Multidisciplinary
Silvia Pizzanelli, Lucia Calucci, Claudia Forte, Silvia Borsacchi
Summary: Composting, vermicomposting, and anaerobic digestion are commonly used methods to convert organic waste into valuable soil amendment products. C-13 solid-state Nuclear Magnetic Resonance (SSNMR) has been applied to track the transformation of organic matter and evaluate the quality of the produced amendments and the effectiveness of the treatments.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Sara Ramos dos Santos, Judith Schellekens, Peter Buurman, Jean-Thomas Cornelis, Karen Vancampenhout, Wilson Tadeu Lopes da Silva, Plinio Barbosa de Camargo, Pablo Vidal-Torrado
Summary: Complexation of dissolved organic matter (DOM) with cations and minerals plays a significant role in soil carbon stabilization and metal transport in the environment. Understanding the mechanisms controlling DOM binding properties in the soil is crucial for addressing major environmental challenges. However, the impact of DOM source on these mechanisms remains understudied.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Sirajum Monira, Muhammed A. Bhuiyan, Nawshad Haque, Biplob Kumar Pramanik
Summary: The study investigated the effectiveness of the coagulation process in removing microplastic particles, especially under low pH and weathering conditions. A combination of alum and PAM proved to be the most effective coagulant for removing low-density polyethylene, high-density polyethylene, and polypropylene.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Agriculture, Multidisciplinary
Aminthia Pombo Sudre da Silva, Fabio Lopes Olivares, Claudia Pombo Sudre, Lazaro Eustaquio Pereira Peres, Natalia Aguiar Canellas, Rakiely Martins da Silva, Vicenza Cozzolino, Luciano Pasqualoto Canellas
Summary: Humic acids and H. seropedicae can promote tomato plant growth and alleviate bacterial spot disease symptoms by modulating the content of organic acids in leaf tissue.
CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE
(2021)
Article
Biotechnology & Applied Microbiology
Vinicius S. Santos, Bernardo R. Moura, Isabela C. Constantino, Gustavo Metzker, Mauricio Boscolo, Marinonio L. Cornelio, Odair P. Ferreira, Jean L. S. Mounier, Houssam Hajjoul, Marcia C. Bisinoti, Francisco H. S. Junior, Altair B. Moreira
Summary: Recent studies have shown a new way of producing humic-like substances (HLS) from hydrochar prepared by hydrothermal carbonization of biomass. These HLS extracted from process water (PW) produced in hydrothermal carbonization process exhibit high conditional stability constant and complexing capacity, with high content of carbon, oxygen and inorganic compounds. Infrared bidimensional analysis indicates different binding sites affinity order for HLS at different concentrations.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Agriculture, Multidisciplinary
Aline Costa Souza, Daniel Basilio Zandonadi, Mirella Pupo Santos, Natalia Oliveira Aguiar Canellas, Cleiton de Paula Soares, Luiz Eduardo Souza da Silva Irineu, Carlos Eduardo de Rezende, Riccardo Spaccini, Alessandro Piccolo, Fabio Lopes Olivares, Luciano Pasqualoto Canellas
Summary: This study demonstrated that pre-treating plant seedlings with humic acids can alleviate salinity stress by regulating ion balance, enhancing plasma membrane proton pump activity, and improving photosynthesis rate and plant growth. Additionally, humic acids activate salt defense mechanisms in plants, reducing the impact of salinity stress.
CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE
(2021)
Article
Environmental Sciences
Alyne Moraes Costa, Marllon Robert dos Santos Valentim, Livia Ferreira da Silva, Ronei de Almeida, Sarah Dario Alves Daflon, Bianca Ramalho Quintaes, Juacyara Carbonelli Campos
Summary: This study evaluated the acute toxic effects of leachates from two landfills on bacterium Aliivibrio fischeri and activated sludge microorganisms. Reductions in leachate toxicity were observed after removal of ammonia and humic substances, indicating organic compounds were the primary pollutants responsible for the toxicity. A. fischeri showed greater sensitivity to pollutants compared to activated sludge microorganisms, but a strong correlation between their toxicity responses was observed, suggesting the use of respirometry assay to determine leachate toxicity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Plant Sciences
Peijia Zhang, Hongjia Zhang, Guoqing Wu, Xiaoyuan Chen, Nazim Gruda, Xun Li, Jinlong Dong, Zengqiang Duan
Summary: Fulvic acids, derived from bioresources, have been shown to enhance crop yield and quality by improving root growth and increasing nutrient uptake. In tomato plants, moderate doses of fulvic acids can improve seed germination rate, promote plant growth, and increase nutrient content effectively.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Hao Liu, Tuo Zhang, Yan'an Tong, Qihong Zhu, Daoyou Huang, Xibai Zeng
Summary: Humic substances and calcareous substances are important components in soil and can affect the mobility of metals. This study developed a new remediation scheme for cadmium-contaminated soil by coupling humic substances and calcareous substances. The results showed that this approach effectively reduced the bioavailable cadmium concentration in soil and decreased cadmium accumulation in rice tissues.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Chemistry, Multidisciplinary
Xiongxin Peng, Shuang Gai, Kui Cheng, Fan Yang
Summary: The study conducted hydrothermal humification kinetics experiments using corn straw as raw material and employed characterization techniques such as ultra-performance liquid chromatography, nuclear magnetic resonance spectroscopy, and Fourier-transform ion cyclotron resonance mass spectrometry to determine the formation mechanism of artificial humic substances (A-HS). The results showed that in an alkaline environment, rapid dissociation of lignocellulose can occur, with cellulose and hemicellulose being hydrolyzed into glucose and xylose, further dehydrated to form 5-hydroxy furfural and furfural, and then rehydrated to synthesize levulinic acid and other small molecular acids. These small precursors then combine with lignin fragments to form fulvic acids, humic acids, and even humin. The proposed mechanism of hydrothermal humification is of great significance for the design, synthesis, and application of A-HS in sustainable agriculture.
Article
Chemistry, Applied
Shrikanta Sutradhar, Nur Alam, Lew P. Christopher, Pedram Fatehi
Summary: Due to population growth, there is a need to address the imbalance between arable land availability and food needs. This study explores the use of lignin as a fertilizer to increase crop productivity and improve plant nutrition, demonstrating promising results for maize plants.
Article
Green & Sustainable Science & Technology
Gricel Alcira Portillo Miranda, Tavares Araruna Junior, Eduardo de Albuquerque Brocchi, Hongtao Wang
Summary: The research shows that humic substances obtained from recycling mineral coal tailings can reduce the environmental impact of mining and increase soil stability. The long-term stability advantage of humic substances is clear, and their effects on stability are more pronounced over a longer period of time.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agronomy
J. Abadia, F. Bastida, C. Romero-Trigueros, J. M. Bayona, A. Vera, C. Garcia, J. J. Alarcon, E. Nicolas
Summary: Research shows that irrigation with water from different sources has significant impacts on soil microbial communities and crop yield in Mediterranean mandarin agroecosystems. Implementing water-saving irrigation strategies in citrus orchards can promote soil health and stabilize yield.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Engineering, Environmental
Manuel Ortiz-Botella, Isidoro Gomez, Patricia Paneque, Pablo Caballero, Juan Parrado, Alfonso Vera, Felipe Bastida, Carlos Garcia, Manuel Tejada
Summary: The study aimed to investigate the bioremediation effect of two biostimulants extracted from okara on soil contaminated by imazamox. Both biostimulants enhanced soil biochemical activity and microbial population, with the one containing a higher percentage of low-molecular-weight proteins showing greater stimulation. Application of these biostimulants reduced the inhibition of biological properties in polluted soil, with the biostimulant containing more low-molecular-weight proteins being more effective.
BIOREMEDIATION JOURNAL
(2022)
Article
Ecology
Felipe Bastida, David J. Eldridge, Carlos Garcia, G. Kenny Png, Richard D. Bardgett, Manuel Delgado-Baquerizo
Summary: Based on a global field survey, it was found that soil carbon content is closely associated with the relationship and ratio between microbial diversity and biomass in soils across different ecosystems and climate types. Particularly, the ratio of soil microbial diversity to biomass is higher in arid environments and lower in C-rich cold environments. The study indicates that reductions in soil carbon content due to land use intensification and climate change could lead to significant shifts in the microbial diversity-biomass ratio, impacting various soil processes.
Article
Engineering, Environmental
A. Vera, J. L. Moreno, J. A. Siles, R. Lopez-Mondejar, Y. Zhou, Y. Li, C. Garcia, E. Nicolas, F. Bastida
Summary: The study revealed that high boron doses promoted boron accumulation in soil, leading to harmful concentrations that impacted soil biodiversity. There was a close interaction between boron and organic labile fractions, increasing boron availability in soil solution. Organic amendment did not enhance boron soil adsorption, but facilitated boron plant uptake, and the highest boron dose had a detrimental impact on plant physiology, eventually causing lethal effects on the plants.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Plant Sciences
Ricardo Gil-Ortiz, Miguel Angel Naranjo, Antonio Ruiz-Navarro, Marcos Caballero-Molada, Sergio Atares, Carlos Garcia, Oscar Vicente
Summary: This study compared the efficacy of a new ecological polymer-coated urea fertilizer with a traditional slow-release urea-based fertilizer, finding that the new controlled-release fertilizer significantly increased grain yield in the field compared to the traditional one at the same dose. A reduction in nitrogen content in the new fertilizer also showed similar physiological and yield responses as the traditional fertilizer. This new fertilizer can be used in extensive maize cropping, guaranteeing similar yields while reducing soil properties and nitrogen losses.
Article
Environmental Sciences
Paloma avila-Pozo, Juan Parrado, Pablo Caballero, Marta Diaz-Lopez, Felipe Bastida, Manuel Tejada
Summary: The study suggests that the use of a biostimulant with high amounts of low molecular weight proteins can have a positive effect on the bioremediation of oxyfluorfen-polluted soils, leading to a significant decrease in enzymatic activities inhibited by the herbicide.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
(2021)
Article
Soil Science
Manuel Tejada, Sandra Macias-Benitez, Pablo Caballero, Isidoro Gomez, Patricia Paneque, Juan Parrado
Summary: The study investigated the bioremediation of oxyfluorfen-polluted soil using two biostimulants obtained from sewage sludge by fermentation processes. The application of biostimulants led to changes in enzymatic activities, bacterial community composition, and oxyfluorfen concentration in the soil. The results suggest that the use of biostimulants with higher amounts of low molecular weight proteins and peptides could be effective in remediating oxyfluorfen-polluted soils.
APPLIED SOIL ECOLOGY
(2022)
Article
Agronomy
Pablo Caballero, Sandra Macias-Benitez, Ana Moya, Bruno Rodriguez-Morgado, Luis Martin, Manuel Tejada, Angelica Castano, Juan Parrado Rubio
Summary: A new biostimulant was developed from sewage sludge through fermentation with Bacillus licheniformis, which contains biomass, enzymatic secretion, and hydrolyzed sludge organic matter. The biostimulant can induce plant growth-promoting bacteria and remain active in the soil.
Article
Agronomy
Carlos J. Garcia, Veronica Alacid, Francisco A. Tomas-Barberan, Carlos Garcia, Pedro Palazon
Summary: The control and development of plant growth promoters is essential for the agronomy industry. This study used untargeted metabolomics to investigate the metabolites responsible for the biostimulant effects of three bacteria. The results revealed several metabolic pathways, including the pentose phosphate pathway, tryptophan metabolism, zeatin biosynthesis, vitamin B6 metabolism, and amino acid metabolism, that are related to bacteria biostimulant activity. Additionally, 14 metabolites were identified as biomarkers of the biostimulant capabilities.
Article
Environmental Sciences
Alfonso Vera, Jose L. Moreno, Carlos Garcia, Emilio Nicolas, Felipe Bastida
Summary: Irrigation with desalinated seawater (DSW) is a potential solution for water scarcity in semiarid regions, but it may harm agricultural ecosystems due to high phytotoxic element content. Lemon trees showed a decline in physiological parameters and accumulation of boron, while apricot trees were not negatively affected. DSW irrigation increased soil microbial biomass and had positive effects on the crop-soil system.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Polymer Science
Jose M. Orts, Juan Parrado, Jose A. Pascual, Angel Orts, Jessica Cuartero, Manuel Tejada, Margarita Ros
Summary: In this study, Tenebrio molitor larvae were fed polyurethane foam and degraded the polymer by 35% in 17 days, resulting in a 14% weight loss in the mealworms. Changes in the gut bacterial community and diversity of T. molitor were observed, which may be associated with the colonization of species involved in polyurethane degradation. The physical and structural biodegradation of polyurethane by T. molitor was analyzed and compared to the original polymer using FTIR, TGA, and SEM.
Article
Agronomy
Manuel Tejada, Isidoro Gomez, Patricia Paneque, Marina del Toro, Albert Garcia-Quintanilla, Juan Parrado
Summary: The bioremediation effect of three biostimulants obtained from sewage sludge by enzymatic hydrolysis and fermentation process was studied in a diuron-contaminated soil. The application of the biostimulants effectively reduced the concentration of diuron, with the biostimulant obtained by enzymatic hydrolysis showing the highest reduction due to its higher quality of low molecular weight proteins.
Article
Geosciences, Multidisciplinary
Kailiang Yu, Johan van den Hoogen, Zhiqiang Wang, Colin Averill, Devin Routh, Gabriel Reuben Smith, Rebecca E. Drenovsky, Kate M. Scow, Fei Mo, Mark P. Waldrop, Yuanhe Yang, Weize Tang, Franciska T. De Vries, Richard D. Bardgett, Peter Manning, Felipe Bastida, Sara G. Baer, Elizabeth M. Bach, Carlos Garcia, Qingkui Wang, Linna Ma, Baodong Chen, Xianjing He, Sven Teurlincx, Amber Heijboer, James A. Bradley, Thomas W. Crowther
Summary: Fungi and bacteria are the dominant groups of soil microbial communities worldwide. They play a crucial role in regulating carbon cycling by controlling the turnover of soil organic matter. This study provides the first quantitative and high-spatial-resolution map of soil fungal proportion across terrestrial ecosystems, revealing striking latitudinal trends where fungal dominance increases in cold and high-latitude environments. The study also found a strong nonlinear response of fungal dominance to environmental factors, such as mean annual temperature and net primary productivity. These findings have important implications for improving predictions of soil organic matter turnover under current and future climate scenarios.
EARTH SYSTEM SCIENCE DATA
(2022)
Article
Horticulture
Paloma Avila-Pozo, Juan Parrado, Pablo Caballero, Manuel Tejada
Summary: This manuscript investigates the effect of applying a biostimulant to a greenhouse tomato crop. The results indicate that continuous application of a high dose of biostimulant to the substrate can increase the nutrient and chlorophyll content in plant leaves, leading to better growth.
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)
