Article
Engineering, Environmental
Libertus Darus, Susana Susana, Halasan Sihombing, Amaliyah Rohsari Indah Utami, Maizirwan Mel
Summary: Utilizing PS pretreatment effectively removes lignin and hemicellulose from OPEFB, increasing cellulose content and enhancing enzymatic digestibility, providing a potential pathway towards economically feasible bioethanol production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Nadhilah Aqilah Shahdan, Vekes Balasundram, Norazana Ibrahim, Ruzinah Isha
Summary: This study utilizes rice husk ash as a low-cost alternative silica precursor for catalyst synthesis and compares it with HZSM-5. The results showed that CRHA and HZSM-5 had similar volatilized matter yield, while NiCRHA produced the highest amount. Kinetic analysis revealed that the catalytic runs followed anti-Jander diffusion. Despite having the highest activation energy, NiCRHA also had the highest pre-exponential factor, allowing it to overcome the energy barrier and produce the most volatilized matter.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Agricultural Engineering
Lucky Risanto, Deddy Triyono Nugroho Adi, Triyani Fajriutami, Hiroshi Teramura, Widya Fatriasari, Euis Hermiati, Prihardi Kahar, Akihiko Kondo, Chiaki Ogino
Summary: Lignocellulose requires pretreatment before hydrolytic enzymes can release fermentable sugars. Sulfuric acid, commonly used for biomass pretreatment, often leads to high levels of degradation products. The study found that pretreatment with maleic acid resulted in the highest release of xylose and glucose among other organic acids. Optimized conditions for maleic acid pretreatment were also identified. The findings suggest that maleic acid could be a viable substitute for sulfuric acid in biomass pretreatment.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Mohd Faizal Hasan, Muhammad Syaraffi Omar, Mohamad Azri Sukiran, Bemgba Bevan Nyakuma, Mohd Farid Muhamad Said
Summary: This study investigates the effects of torrefaction on the physical and physicochemical properties as well as thermal stability of fibrous empty fruit bunch (EFB). The results show that the torrefaction temperature is a dominant parameter, and an increase in temperature improves the characteristics of EFB, especially at a temperature of 300 degrees C. Additionally, significant changes in the EFB's surface, microstructure, crystallographic structure, and functional groups were observed during torrefaction.
Article
Agricultural Engineering
Moushmi S. Chakraborty, Arvind M. Lali
Summary: This study utilized a two-step acid-alkali treatment to extract lignin from empty palm fruit bunch and break it down into monomers, achieving an 80% conversion rate. Through fractionation, 37% of the overall lignin was obtained as monomeric compounds.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Materials Science, Paper & Wood
Nursia Hassan, Tan Li Wen, Amirah Khairina Khairil Anwar, Ani Idris
Summary: The research showed that using ferric chloride ionic solution to pretreat oil palm empty fruit bunch with microwave irradiation can significantly increase the total reducing sugar yield. The optimal pretreatment conditions were found to be 10 minutes, 100 degrees Celsius, and 10% ferric chloride concentration. This pretreatment method is a promising alternative to replace other pretreatment methods.
Article
Agricultural Engineering
Denghao Ouyang, Tongxin Liu, Abdul Aziz Astimar, Soek Sin Teh, Jalil Nursyairah, Dehua Liu, Xuebing Zhao
Summary: A novel process for simultaneous production of furfural and pretreatment of oil palm empty fruit bunch (EFB) was developed. Mass transfer analysis suggested that internal diffusion could be neglected, while heating stage could not be neglected due to significant solubilization of xylan. Steam intermittent discharging strategy was developed to increase furfural yield. The pretreated solids showed good enzymatic digestibility, and high glucose yield was obtained. Non-isothermal effects on polysaccharide hydrolysis and pentose decomposition should be considered for an efficient process design.
BIORESOURCE TECHNOLOGY
(2023)
Article
Thermodynamics
Amnani Shamjuddin, Nurul Suhada Ab Rasid, Makam Mba Michele Raissa, Muhammad Anif Abu Zarin, Wan Nor Nadyaini Wan Omar, Ardiyansyah Syahrom, Mohd Al Fatihhi Mohd Szali Januddi, Nor Aishah Saidina Amin
Summary: Pre-treatment is crucial in enhancing cellulose accessibility from lignocellulosic biomass like empty fruit bunch. Ozonolysis pre-treatment is a green alternative for isolating cellulose from EFB. A diffusion-reaction model of EFB ozonolysis in a novel reactor was developed, showing larger biomass particles consume more ozone and have faster delignification rates. Computational simulations revealed that larger particles have lower ozone velocity but higher surface concentration.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Biotechnology & Applied Microbiology
Hironaga Akita, Mohd Zulkhairi Mohd Yusoff, Shinji Fujimoto
Summary: The study focused on preparing hydrolysate from OPEFB through hydrothermal treatment, with hemicellulose yield decreasing from 153 mg/g-OPEFB to 27.5 mg/g-OPEFB as the temperature increased from 180 to 200 degrees C. The highest glucose yield was obtained from the enzyme-treated solid phase after hydrothermal treatment at 200 degrees C.
FERMENTATION-BASEL
(2021)
Article
Green & Sustainable Science & Technology
Zhen Kang Liew, Yi Jing Chan, Zheng Theng Ho, Yew Hong Yip, Ming Chern Teng, Ameer Illham Tuah Ameer Abbas bin, Siewhui Chong, Pau Loke Show, Chien Lye Chew
Summary: This study aims to enhance biogas production from anaerobic co-digestion (ACD) of EFB with POME by evaluating the effect of alkaline pretreatment of EFB, EFB-to-POME ratio, and temperature on methane yield. Results show that ACD performs 2.36 times better than mono-digestion of POME at mesophilic conditions, with the modified Gompertz model predicting process behavior with high accuracy (R-2 > 0.95).
Article
Thermodynamics
Mohamad Syazarudin Md Said, Atiyyah Ameenah Azni, Wan Azlina Wan Ab Karim Ghani, Azni Idris, Mohamad Fakri Zaky Ja'afar, Mohamad Amran Mohd Salleh
Summary: Biomass-derived biochar produced through microwave-assisted pyrolysis, particularly utilizing an alumina susceptor, at a temperature of 300 degrees Celsius, demonstrated optimal conditions for biochar production. Empty fruit bunch short fiber-derived biochar exhibited higher yield and better properties compared to pellet-derived biochar, with higher heating value, fixed carbon, volatile matter, and carbon content. However, the former also showed a tendency for slagging and fouling in the combustor due to high ash indexes.
Article
Agronomy
Nurul Aini Puasa, Siti Aqlima Ahmad, Nur Nadhirah Zakaria, Noor Azmi Shaharuddin, Khalilah Abdul Khalil, Alyza Azzura Azmi, Claudio Gomez-Fuentes, Faradina Merican, Azham Zulkharnain, Yih-Yih Kok, Chiew-Yen Wong
Summary: Agricultural sorbents, such as oil palm's empty fruit bunch spikelets, are effective in removing oil spills from seawater pollution. The study investigated the effectiveness of EFB spikelets in a filter system and determined the best optimization approach for filtering conditions. The research demonstrated that the response surface methodology (RSM) is more efficient in oil removal compared to one-factor-at-a-time (OFAT) analysis.
Article
Microbiology
Tat-Ming Lo, In Young Hwang, Han-Saem Cho, Raissa Eka Fedora, Si Hui Chng, Won Jae Choi, Matthew Wook Chang
Summary: This study successfully engineered microbial hosts to directly utilize OPEFB lignin mixtures to produce commodity chemicals, demonstrating a simple one-pot biosynthesis approach that utilizes derivatives of agricultural waste.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Materials Science, Paper & Wood
Shuhaida Harun, Aqilah Mohd Tajuddin, Azuan Abdul Latif, Safa Senan Mahmod, Mohd Shaiful Sajab, Masturah Markom, Jamaliah Md Jahim
Summary: The study aimed to investigate the pretreatment efficiency of oil palm empty fruit bunches (EFB) using two different types of deep eutectic solvent (DES) mixtures. The results showed that pretreating EFB with DES-I solvent at optimal conditions increased the structural carbohydrate content and enzymatic hydrolysis efficiency. This indicated that DES-I solvent was more effective than DES-G for EFB pretreatment.
Article
Green & Sustainable Science & Technology
Danny Wei Kit Chin, Steven Lim, Yean Ling Pang, Chun Hsion Lim, Siew Hoong Shuit, Kiat Moon Lee, Cheng Tung Chong
Summary: The research on utilizing EFB for value-added applications like activated carbon and biofuels is limited, partly due to its susceptibility to microbial and fungi degradation in the natural environment. After organosolv pretreatment, high-purity cellulose and lignin can be successfully recovered, making it a suitable feedstock for downstream biorefinery processes.
Review
Environmental Sciences
Kuok Ho Daniel Tang, Serene Sow Mun Lock, Pow-Seng Yap, Kin Wai Cheah, Yi Herng Chan, Chung Loong Yiin, Andrian Zi En Ku, Adrian Chun Minh Loy, Bridgid Lai Fui Chin, Yee Ho Chai
Summary: The review article discusses the latest advances, feasibility, and future prospects of immobilized enzyme/microorganism complexes for microplastics degradation. It highlights the improvement in biodegradation efficiency and enzyme recyclability achieved by metal nanoparticle-enzyme complexes and carbon particle-enzyme complexes. Other emerging nanoparticles and enzymatic technologies are also mentioned.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Agricultural Engineering
Chung Loong Yiin, Elatta bin Odita, Serene Sow Mun Lock, Kin Wai Cheah, Yi Herng Chan, Mee Kee Wong, Bridgid Lai Fui Chin, Armando T. Quitain, Soh Kheang Loh, Suzana Yusup
Summary: One of the greatest challenges in biorefinery is to reduce biomass' recalcitrance and enable valorization of lignin into higher value compounds. Green solvents and hydrothermal liquefaction (HTL) have been widely introduced in extraction and conversion of lignin. This review discusses the limitations of conventional pretreatment approaches, the role of green solvents in lignin extraction, and the effect of process parameters on HTL conversion of lignin. The limitations of green solvents in extraction and HTL of lignin from biomass are also discussed, along with proposed future research scopes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Shin Ying Foong, Yi Herng Chan, Bridgid Lai Fui Chin, Serene Sow Mun Lock, Cia Yin Yee, Chung Loong Yiin, Wanxi Peng, Su Shiung Lam
Summary: Biochar as a green and low-cost adsorbent offers a sustainable alternative to traditional chemical-intensive and expensive wastewater treatment technologies. Upgrading biochar through modification techniques enhances its adsorption capacity and robustness for efficient removal of metal ions and organic compounds in wastewater. Future research should focus on the optimal temperature and pH levels that affect the efficiency of contaminants removal by biochar.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Cia Yin Yee, Lam Ghai Lim, Serene Sow Mun Lock, Norwahyu Jusoh, Chung Loong Yiin, Bridgid Lai Fui Chin, Yi Herng Chan, Adrian Chun Minh Loy, Muhammad Mubashir
Summary: This paper reviews the development, structural, physical properties, and separation performance of hybrid membranes using a molecular simulation approach. Different types of hybrid membranes, such as ionic liquid membranes and mixed matrix membranes, are discussed for gaining insights into the molecule transport mechanism. The incorporation of molecular simulation in carbon dioxide removal, wastewater treatment, and desalination applications is also reviewed. Despite the limitations, molecular simulation shows promising results in capturing molecule behaviors and enhancing the performance of pristine membranes.
Article
Chemistry, Analytical
Takeshi Shinkai, Keigo Masumoto, Masaru Iwai, Yusuke Inomata, Tetsuya Kida
Summary: Understanding the surface chemistry of target gases on sensing materials is crucial for designing high-performance gas sensors. The study found that Pt-loading on ZnO gas sensors has a significant effect on the sensing of volatile organic compounds (VOCs) and exhibits good selectivity towards different gases. The investigation of the gas sensing mechanism of ethanol with Pt-ZnO nanocrystals reveals the formation of intermediate species during the reaction process.
Article
Agricultural Engineering
Shin Ying Foong, Yi Herng Chan, Serene Sow Mun Lock, Bridgid Lai Fui Chin, Chung Loong Yiin, Kin Wai Cheah, Adrian Chun Minh Loy, Peter Nai Yuh Yek, William Woei Fong Chong, Su Shiung Lam
Summary: This article analyzes the application of microwave-assisted thermal conversion technology in the utilization of oil palm waste, with a focus on the production of energy-dense biochar, phenolic-rich bio-oil, and H-2-rich syngas. However, challenges such as the lack of life cycle assessment and economic analysis, limited understanding of microwave-oil palm waste interaction for continuous operation, and the effects of tunable parameters and catalyst behavior on product selectivity and process efficiency still need to be addressed in large-scale biomass valorization via microwave technology.
BIORESOURCE TECHNOLOGY
(2023)
Review
Engineering, Environmental
Yi Herng Chan, Adrian Chun Minh Loy, Kin Wai Cheah, Slyvester Yew Wang Chai, Lock Hei Ngu, Bing Shen How, Claudia Li, Serene Sow Mun Lock, Mee Kee Wong, Chung Loong Yiin, Bridgid Lai Fui Chin, Zhe Phak Chan, Su Shiung Lam
Summary: Hydrogen sulfide (H2S) is a toxic gas released from natural occurrences and human economic activities. Proper management of H2S is crucial due to its adverse health impacts. This review evaluates the state-of-the-art technologies for H2S conversion and utilization, emphasizing the need for more sustainable and energy-efficient methods. Various value-added products derived from H2S are discussed, along with their technological readiness, market demand, technical requirements, and environmental impacts. Technological gaps and future directions for each approach are also outlined.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Khadija Asif, Serene Sow Mun Lock, Syed Ali Ammar Taqvi, Norwahyu Jusoh, Chung Loong Yiin, Bridgid Lai Fui Chin
Summary: A molecular simulation method was used to investigate the structural, physical properties, and gas transport behavior of amine-functionalized silica/polysulfone-based mixed matrix membranes (MMMs). The functionalization of silica nanoparticles was found to enhance diffusion and solubility coefficients, resulting in a significant increase in permeability and selectivity of the amine-functionalized MMMs compared to the silica/polysulfone-based MMMs. The findings of this study have important implications for the future design and development of functionalized MMMs for CO2/CH4 separation.
Review
Green & Sustainable Science & Technology
Noor E. Hira, Serene Sow Mun Lock, Noor Fazliani Shoparwe, Irene Sow Mei Lock, Lam Ghai Lim, Chung Loong Yiin, Yi Herng Chan, Muhammad Hassam
Summary: In recent years, simulation studies have become valuable tools for understanding processes, especially in the field of molecular dynamic simulations for adsorption. However, comprehensive studies on molecular simulations of adsorption processes using different adsorbents in wastewater treatment are lacking. In this review, we collected information on various aspects of the adsorption phenomenon realized through molecular simulations for different effective adsorbents. The review organized the adsorbents into five major categories and explored the parameters influencing adsorption.
Article
Chemistry, Applied
Mitsuru Sasaki, Hiras Tumegas Manalu, Ramma Kamogawa, Cinthya Soreli Castro Issasi, Armando T. Quitain, Tetsuya Kida
Summary: This study found that graphene oxide (GO) can be used as a catalyst to promote rutin hydrolysis under microwave irradiation, improving the reaction efficiency. Two different types of GOs were compared, and GO-TO showed higher catalytic performance. The highest rutin conversion (98.8%) and quercetin yield (81.9%) were achieved at 180 degrees C for 15 minutes using 3 mg of GO-TO and 2400 ppm of initial rutin concentration in 50 mL of water.
Review
Chemistry, Physical
Tianqi Liu, Chukwunonso O. Aniagor, Marcel I. Ejimofor, Matthew C. Menkiti, Kuok Ho Daniel Tang, Bridgid Lai Fui Chin, Yi Herng Chan, Chung Loong Yiin, Kin Wai Cheah, Yee Ho Chai, Serene Sow Mun Lock, Kok Liang Yap, Melvin Xin Jie Wee, Pow-Seng Yap
Summary: Recently, there has been increasing global attention on the removal of pharmaceutical and personal care products (PPCPs) from aqueous solutions due to concerns about their potential hazards and toxicities as emerging contaminants. This review presents the latest developments in removal technologies for PPCPs, covering a wide range of methods such as adsorption, advanced oxidation processes (AOPs), membrane separation processes, biodegradation processes, and hybrid treatments. The review also highlights the challenges in this field, including incomplete removal of certain PPCPs, high costs of some treatment technologies, and limited understanding of removal kinetics and mechanisms. Recommendations for future research are provided to improve the technical performances and promote the industrial-scale application of these technologies. (c) 2022 Elsevier B.V. All rights reserved.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Thermodynamics
Adrian Chun Minh Loy, Sin Yong Teng, Bing Shen How, Xixia Zhang, Kin Wai Cheah, Valeria Butera, Wei Dong Leong, Bridgid Lai Fui Chin, Chung Loong Yiin, Martin J. Taylor, Georgios Kyriakou
Summary: The emergence of single atom sites as a frontier research area in catalysis has attracted extensive interest, especially for energy, environmental, and chemicals production. Single atom catalysts (SACs) have shown remarkable performance in various catalytic reactions, demonstrating high selectivity, long lifespan, stability, and high atomic metal utilization efficiency. This review provides insights on the development and achievements of SACs, including chronological progress, recent advances in synthesis, characterization techniques, applications, environmental and economic aspects, and current challenges and future prospects.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Energy & Fuels
April Ling Kwang Chee, Bridgid Lai Fui Chin, Sharon Meng Xuang Goh, Yee Ho Chai, Adrian Chun Minh Loy, Kin Wai Cheah, Chung Loong Yiin, Serene Sow Mun Lock
Summary: The kinetic and thermodynamic parameters of catalytic co-pyrolysis of palm kernel shell (PKS) and high-density polyethylene (HDPE) using three different catalysts were studied. The results showed that limestone (LS) demonstrated the lowest activation energy and HZSM-5/LS had the highest activation energy. The positive values of Delta H and Delta G indicated that the catalytic co-pyrolysis process is endothermic and non-spontaneous. The findings suggest that PKS and HDPE have the potential to be used as feedstock for clean bioenergy production.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Green & Sustainable Science & Technology
Megan Soh, Deni Shidqi Khaerudini, Chung Loong Yiin, Jiuan Jing Chew, Jaka Sunarso
Summary: This study evaluates the effect of wet torrefaction on the physical, chemical, and structural properties of hydrochar from empty fruit bunches of oil palm. The results show that the highest heating value of the hydrochar is achieved at a temperature of 220 degrees Celsius and a residence time of 24 hours. Temperature has a more significant influence on the characteristics of the hydrochar compared to residence time. Wet torrefaction can effectively improve the fuel properties of oil palm empty fruit bunches.
CLEANER ENGINEERING AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Tshun Li Yap, Adrian Chun Minh Loy, Bridgid Lai Fui Chin, Juin Yau Lim, Hatem Alhamzi, Yee Ho Chai, Chung Loong Yiin, Kin Wai Cheah, Melvin Xin Jie Wee, Man Kee Lam, Zeinab Abbas Jawad, Suzana Yusup, Serene Sow Mun Lock
Summary: This study investigated the kinetic and thermodynamic performances of Chlorella vulgaris, high-density polyethylene (HDPE), and their binary mixtures through catalytic pyrolysis. The results showed that the bifunctional HZSM-5/LS catalyst exhibited the best catalytic effect in the co-pyrolysis of the binary mixture.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
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)
