Review
Environmental Sciences
Geng Chen, Rui Bai, Yiqing Zhang, Biyi Zhao, Yong Xiao
Summary: Metagenomics is a powerful tool for assessing microbial communities in biological wastewater treatment by revealing the composition and function of microbial communities more effectively than traditional molecular methods. It can provide insights into the contribution of microbial diversity and metabolic diversity to processes such as biological removal of phosphorus and nitrogen, study of antibiotic resistance genes, and reduction of heavy metals by microbial communities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Amrutashree Hota, S. Gopal Krishna Patro, Ahmed J. Obaid, Satish Khatak, Raghvendra Kumar
Summary: In recent years, Constructed Wetlands (CWs) have been used as a green and sustainable method for treating wastewater from industrial sources in smart cities. Particularly for small villages and isolated areas, CWs provide an energy- and land-efficient alternative to traditional treatment systems. This study aims to offer sustainable options for the effectiveness and use of CWs by evaluating their application and recent developments in their design and operation. The study also emphasizes the importance of future research in improving the sustainability and stability of CWs.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Chemistry, Analytical
Eid Gul, Khalideh Al Bkoor Alrawashdeh, Ondrej Masek, Oyvind Skreiberg, Andrea Corona, Mauro Zampilli, Liang Wang, Petros Samaras, Qing Yang, Hewen Zhou, Pietro Bartocci, Francesco Fantozzi
Summary: Clean water is crucial for life, but with the growing population, demand for it is increasing while reserves are decreasing. Wastewater from industries poses a threat to freshwater reserves and the environment. Activated carbon is a key tool for wastewater treatment and can help produce high purity water.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Review
Microbiology
Ncumisa Mpongwana, Sudesh Rathilal, Emmanuel K. Tetteh
Summary: Biological nutrient removal is essential in wastewater treatment plants, but it can be inhibited by external toxicants like heavy metals. This paper explores different recovery strategies, comparing their effectiveness and environmental impact. The application of bio-accelerant is found to be the most superior method, followed by the use of external field energy. Understanding the mechanism of inhibition and the key microorganism involved is crucial for developing effective recovery strategies.
Review
Environmental Sciences
Xiang Li, Shuting Shen, Yuye Xu, Ting Guo, Hongliang Dai, Xiwu Lu
Summary: The non-renewability of phosphate rock as a resource and excess phosphate in water systems leading to eutrophication are two interrelated problems. This paper reviews strategies for phosphorus (P) recovery from waste streams in wastewater treatment plants (WWTPs) and breaks down the main P recovery processes into enrichment, extraction, and crystallization. The choice of P recovery technology depends on sewage and sludge treatment processes. Most P recovery processes can meet the financial requirements due to the recent surge in phosphate rock prices. However, the safety requirements for P recovery products add a high cost to toxic substance removal, highlighting the need to control the discharge of toxic substances from the source.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Avik Kumar Dhar, Humayra Akhter Himu, Maitry Bhattacharjee, Md Golam Mostufa, Fahmida Parvin
Summary: In recent decades, the release of pollutants into aquatic systems from increased industrial, agricultural, and domestic activities has created a need for reliable and environmentally friendly methods of removal. Bentonite clays have emerged as a cost-effective and sustainable solution in wastewater treatment, offering superior properties such as high adsorption capacity and chemical stability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Atul Sharma, Divyanshi Mangla, Shehnaz, Saif Ali Chaudhry
Summary: This article reviews the challenges related to clean water scarcity and introduces the application of adsorption technology in solving wastewater treatment issues. It focuses on the feasibility and sustainability of magnetic composites as adsorbents.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Biochemistry & Molecular Biology
Zahrah Alhalili
Summary: Nanotechnology has been widely applied in various sectors, such as pharmacy, chemical, electrical, food manufacturing, and military. It offers great potential in the environmental sector due to its unique properties. Template synthesis method is a greener and more promising approach for metal oxide nanostructures preparation compared to traditional methods. The application of nanotechnology in drinking water treatment, wastewater treatment, agriculture, and remediation focuses on heavy metal adsorption, photocatalytic decomposition, pathogen disinfection, and organic removal.
Review
Engineering, Environmental
Marouane El Alouani, Hamid Saufi, Ghizlane Moutaoukil, Saliha Alehyen, Behzad Nematollahi, Walid Belmaghraoui, M'hamed Taibi
Summary: This study provides a comprehensive review on the application of geopolymer materials for treating waters and wastewaters contaminated with organic and inorganic pollutants, highlighting their potential as efficient, environmentally-friendly, and cost-effective adsorbents. The research focuses on recent studies conducted from 2010 to 2020, exploring the formulation, characterization, and adsorption capabilities of geopolymers for eliminating hazardous pollutants from aqueous environments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Chemistry, Multidisciplinary
Akash Balakrishnan, Sowmya Appunni, Mahendra Chinthala, Meenu Mariam Jacob, Dai-Viet N. Vo, Soreddy Sainath Reddy, Emmanuel Sebastian Kunnel
Summary: Water contamination is a growing global issue, and current methods for water and wastewater treatment are limited, especially in terms of difficult regeneration of fossil-fuel derived nano-adsorbents. Advanced methods using sustainable materials like chitosan are needed. Chitosan, a biopolymer extracted from shellfish, is non-toxic, abundant, and chemically stable. It can be shaped into various forms for wastewater treatment. In this review, we focus on chitosan-based beads and their applications in wastewater treatment, including adsorption mechanisms, pollutant removal, functionalization, and regeneration. Notably, chitosan/Fe-hydroxyapatite beads have high adsorption capacity for lead removal, while imprinted magnetic chitosan beads show good reusability for nickel removal.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Physical
Ravindra Kumar Gautam, Ankit Kumar Singh, Ida Tiwari
Summary: This review examines the progress made in the development of nanoscale layered double hydroxide (LDH) based hybrid nanomaterials for the treatment of various environmental pollutants in wastewater. The synthesis of LDH nanomaterials and their modification by different materials are analyzed, as well as the characterization tools used. The applications of LDH based hybrid nanomaterials for the remediation of heavy metals, dyes, antibiotics, phosphates, pharmaceuticals, and other organic compounds in wastewater are discussed, along with the operating parameters and remediation mechanisms.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Islam Elsayed, Gregory T. T. Schueneman, Emad M. M. El-Giar, El Barbary Hassan
Summary: Due to the widespread water pollutants and the high cost of treatment methods, there is a demand for new, inexpensive, renewable, and biodegradable adsorbent materials for wastewater purification. In this study, a new biocomposite aerogel (Amf-CNF/LS) was prepared and applied for the removal of methylene blue, rhodamine B dye, and cadmium ion from synthetic wastewater solutions. The Amf-CNF/LS aerogel demonstrated high adsorption kinetics and isotherms, making it a promising green and inexpensive adsorbent for wastewater treatment.
Review
Environmental Sciences
Durgadevi Selvaraj, Navamani Kartic Dhayabaran, Arivazhagan Mahizhnan
Summary: Algae-based treatment of textile wastewater is an eco-friendly and cost-effective method that efficiently removes pollutants and produces bioenergy and high-value products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Muhammad Usama Saeed, Nazim Hussain, Aleena Sumrin, Areej Shahbaz, Saman Noor, Muhammad Bilal, Lotfi Aleya, Hafiz M. N. Iqbal
Summary: The demand for innovative waste treatment techniques has increased due to strict waste discharge guidelines. Wastewater treatment is a significant process, requiring high activities and densities of microorganisms. Improperly treated waste from the pharmaceutical industry has harmful impacts on the environment and public health. Bioremediation utilizing microorganisms is a promising technology to remove heavy metals from polluted water and soil. Microorganisms play a crucial role in heavy metal bioremediation. The use of microorganisms in nanoparticle synthesis can reduce industry expenses and contribute to sustainable production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Emmanuel Christopher Umejuru, Tebogo Mashifana, Vepika Kandjou, Majid Amani-Beni, Hasan Sadeghifar, Mahsa Fayazi, Hassan Karimi-Maleh, Nastassia Thandiwe Sithole
Summary: The presence of heavy metal ions and emerging pollutants in water poses a great risk to various biological ecosystems due to their high toxicity. Researchers worldwide are interested in developing efficient and environmentally friendly methods to decontaminate these waters. Adsorption and photocatalysis have been widely used for water treatment, but the discussion and analysis of zeolite-based composites as adsorbents are limited. Zeolites, as porous aluminosilicates, are excellent candidates for wastewater treatment due to their various pollutant removal mechanisms. This review provides an overview of the current developments in fabricating and applying zeolite-based nanocomposites as adsorbents and photocatalysts for extracting heavy metals, dyes, and emerging pollutants from wastewaters. The review also examines the effect of weight ratio on photocatalyst, photodegradation pathways, and various factors influencing photocatalysis and adsorption.
ENVIRONMENTAL RESEARCH
(2023)
Article
Thermodynamics
Bidhan C. Ruidas, Dan Bahadur Pal, Sumit Kumar Jana
Summary: This article presents a study on the in situ combustion of crude oil in porous media, utilizing experimental and analytical methods to derive an overall reaction stoichiometry. The findings contribute to the understanding of the combustion process and provide a theoretical basis for further research on crude oil combustion.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Plant Sciences
V. S. Uma, Zeba Usmani, Minaxi Sharma, Deepti Diwan, Monika Sharma, Miao Guo, Maria G. Tuohy, Charalampos Makatsoris, Xiaobin Zhao, Vijay Kumar Thakur, Vijai Kumar Gupta
Summary: Algal biomass has great potential for sustainable production of various value-added compounds and products. Efficient valorization methods and biorefining channels are essential to enhance the commercial value of algal metabolites. Algal extracts are ideal sources of biotechnologically viable compounds. Emerging technologies in biomass valorization help reduce the cost burden of large-scale operations. Comprehensive extraction of multi-algal product biorefineries is envisioned to enhance the economic feasibility of algal products in the global market.
PHYTOCHEMISTRY REVIEWS
(2023)
Review
Chemistry, Analytical
Tripti Singh, Shalini Sharma, Rajeev Singh, Dan Bahadur Pal, Irfan Ahmad, Mohammad Mahtab Alam, Nand Lal Singh, Manish Srivastava, Neha Srivastava
Summary: This review summarizes the fundamental processes and mechanisms of green synthesis approaches for TiO2 nanoparticles, with a focus on exploring the potential of using plants and microbes for preparing TiO2 nanoparticles and the role of TiO2-based nanomaterials in designing sensing platforms.
Review
Biotechnology & Applied Microbiology
Liang Gong, Ajit Kumar Passari, Chunxiao Yin, Vijay Kumar Thakur, John Newbold, William Clark, Yueming Jiang, Shanmugam Kumar, Vijai Kumar Gupta
Summary: Nowadays, the increasing production, use, and disposal of plastic products is a major environmental issue. The presence of plastic particles and other impurities in the food supply chain poses significant health risks to humans, animals, and the environment. Biodegradable plastics aim to create a more sustainable and eco-friendly world. This article discusses the critical issues that need to be addressed for the commercial viability of bioplastic production.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Puttasiddaiah Rachitha, Krupashree Krishnaswamy, Renal Antoinette Lazar, Vijai Kumar Gupta, Baskaran Stephen Inbaraj, Vinay Basavegowda Raghavendra, Minaxi Sharma, Kandi Sridhar
Summary: The ayurvedic herb Emblica officinalis has great therapeutic and nutritional importance. It is used in Indian medicine for treating various illnesses and has been found to have hepatoprotective, immunomodulatory, antimicrobial, radioprotective, and hyperlipidemic effects. Nanoencapsulation technology can enhance the therapeutic activities and bioaccessibility of Emblica officinalis.
BIOENGINEERING-BASEL
(2023)
Article
Biochemistry & Molecular Biology
Mohd Saeed, Akbar Mohammad, Pardeep Singh, Basant Lal, Muath Suliman, Mohammad Y. Alshahrani, Minaxi Sharma
Summary: Solid waste management and waste valorization are important global concerns. In this study, coconut waste was utilized to produce biochar as a catalyst for fungal enzyme production in solid-state fermentation. The biochar was prepared via a calcination process and characterized using various techniques. The maximum enzyme production of 92 IU/gds BGL was achieved using a concentration of 2.5 mg biochar-catalyst at 40 degrees C in 72 hours.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Mohammed Asiri, Tripti Singh, Akbar Mohammad, Amer Al Ali, Abdulaziz Alqahtani, Mohd Saeed, Manish Srivastava
Summary: Co-fermentation using co-cultured bacterial microorganisms is a promising technique for enzyme production in solid-state fermentation (SSF). The addition of nanomaterials, such as a Zn-Mg hydroxide-based nano-composite, can further enhance enzyme production. In this study, endoglucanase (EG) production was explored using a co-culture system of Bacillus subtilis and Serratia marcescens in SSF with the presence of a Zn-Mg hydroxide-based nanocatalyst. The optimized condition resulted in a 1.33-fold increase in EG enzyme production compared to the control, and the nanocatalyst showed stability for 135 minutes at 38 degrees C.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Electrochemistry
Akbar Mohammad, Amer H. Asseri, Mohammad Imran Khan, Taeho Yoon
Summary: This paper describes the fabrication of WO3/g-C3N4 and its use in a flexible carbon cloth-based nonenzymatic detection of hydrogen peroxide (H2O2). The WO3/g-C3N4 was prepared using a hydrothermal method and characterized using various techniques. The electrode modified with WO3/g-C3N4 demonstrated strong electrocatalytic activity for the detection of H2O2, suggesting its potential in the development of electrochemical sensors.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Biochemistry & Molecular Biology
Illia V. V. Kapitanov, Surya M. M. Sudheer, Toshikee Yadav, Kallol K. K. Ghosh, Nicholas Gathergood, Vijai K. K. Gupta, Yevgen Karpichev
Summary: The solubilization capacity of sustainable phenylalanine-derived surface-active ionic liquids (SAILs) towards polycyclic aromatic hydrocarbons (PAHs) was evaluated and compared with a conventional cationic surfactant, CTABr. The SAILs showed increased solubilization capacity with longer alkyl chain length, comparable to CTABr for certain SAIL types. The phenylalanine-derived SAILs also had the advantage of enzymatically cleaving ester and amide bonds under mild conditions for in situ separation of PAHs.
Article
Green & Sustainable Science & Technology
Alireza Shafizadeh, Hossein Shahbeik, Mohammad Hossein Nadian, Vijai Kumar Gupta, Abdul-Sattar Nizami, Su Shiung Lam, Wanxi Peng, Junting Pan, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This study develops a machine learning-based research framework for modeling, understanding, and optimizing the catalytic steam reforming of volatile matter compounds. Chemical/ textural analyses are used to obtain input features, and ensemble machine learning provides the best prediction performance for toluene conversion and product distribution. The framework can expedite the search for optimal catalyst characteristics and reaction conditions.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Green & Sustainable Science & Technology
Hossein Shahbeik, Alireza Shafizadeh, Vijai Kumar Gupta, Su Shiung Lam, Hajar Rastegari, Wanxi Peng, Junting Pan, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: The unfavorable properties of biomass pyrolysis bio-oil require physical/thermochemical methods to enhance its quality. Nanotechnology offers potential solutions to overcome the drawbacks of conventional catalysts used in bio-oil upgrading. This article provides a comprehensive overview of the application of nanocatalysts in bio-oil upgrading, including their mechanisms and effects on important operating parameters. Nanocatalysts have been shown to yield higher bio-oil quality and have advantages over bulk catalysts. However, more research and development are needed before nanocatalysts can be fully realized in practical applications.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Yadong Yang, Lila Yazdani, Mortaza Aghbashlo, Vijai Kumar Gupta, Junting Pan, Meisam Tabatabaei, Ahmad Rajaei
Summary: This study aimed to increase the commercial value of shrimp shell waste by using chitosan extracted from these wastes as a food emulsion stabilizer. The findings showed that the stabilizer developed from shrimp shell waste is suitable for stabilizing emulsions containing more polar oils with less degree of unsaturation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Sangita Dixit, Kalpana Sahoo, Mahendra Gaur, Rajesh Kumar Sahoo, Suchanda Dey, Vijai Kumar Gupta, Enketeswara Subudhi
Summary: This study explores enzymes in a carbohydrate-contaminated unique environment at Deulajhari hot spring using a multi-omics approach. The study identifies a diverse range of potential lignocellulose-digesting enzymes and highlights their significant potential in industrial-scale biofuel production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Engineering, Environmental
Nisha Oad, Prakash Chandra, Akbar Mohammad, Brijesh Tripathi, Taeho Yoon
Summary: The increase in global consumption of pharmaceutical compounds has led to economic burden and environmental pollution. Conventional treatment techniques can remove these compounds, but MoS2-based heterojunction photocatalytic systems have attracted significant interest due to their unique features. The 2D structure of MoS2-based materials contributes to rapid and stable degradation of pharmaceutical compounds. However, more research is needed to improve the separation of charge carriers and explore the potential of MoS2 for large-scale application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Zeba Usmani, Minaxi Sharma, Manikant Tripathi, Abdul Sattar Nizami, Liang Gong, Munagala S. Reddy, Vijay Kumar Thakur, Vijai Kumar Gupta, Quang D. Nguyen
Summary: With concerns over fossil fuels and waste, there is a focus on finding alternate energy sources for environmental protection and sustainable development. Biomass waste has emerged as a new feedstock for renewable energy production, but it requires pretreatment and valorization strategies. Microwave heating is being explored as an alternative to conventional heating for its advantages. This review explores the application of microwaves as a pretreatment technique and addresses challenges and future research directions.
JOURNAL OF THE ENERGY INSTITUTE
(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)
