BioEnergy Research最新文献

{"title":"Review of the Effects of Trace Metal Concentrations on the Anaerobic Digestion of Organic Solid Waste","authors":"Karina J. Salazar-Batres,&nbsp;Iván Moreno-Andrade","doi":"10.1007/s12155-025-10826-y","DOIUrl":"10.1007/s12155-025-10826-y","url":null,"abstract":"<div><p>Anaerobic digestion is a promising technology for producing methane-rich biogas. Various wastes, including waste activated sludge, food waste, farm waste, agricultural waste, and wastewater, have been used as substrates to generate biogas, which can be transformed into electrical or thermal energy. However, process instability and low methane yield restrict the widespread application of this process. Several strategies have been employed to increase methane yield and energy production, including adding trace elements, such as iron, cobalt, molybdenum, and nickel. Trace elements are part of the cofactors of enzymes involved in methane synthesis and microbial growth. This review aims to analyze the effects of trace elements on methane yield and propose concentrations at which methane production increases, as well as potential inhibitory effects. The addition of trace metals to the anaerobic digestion process has been found to have positive effects, such as enhanced methane yields and productivities, volatile fatty acid (VFA) removal, and chemical oxygen demand removal. An analysis of previously published data from other researchers was adjusted to a variant of the Haldane equation, suggesting that ranges of mg of trace metals per gram of substrate added promote an increase in methane production (0.56–1.67 mg/g VS for iron, 0.01–0.1 mg/g VS for cobalt, 0.03–0.5 mg Mo/g VS for molybdenum, and 0.04–0.5 mg Mo/g VS for nickel). Furthermore, the literature review revealed that the efficiency of the process decreases with increasing metal dose beyond the proposed range. The frequency of trace elements addition directly influences VFA removal. Some trace elements, such as nickel, generate VFAs of higher molecular weight, modifying the process performance. Notably, the process efficiency decreases with higher doses of trace elements, although this promotes the VFA removal.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-025-10826-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetic Modeling of Thermophilic Anaerobic Digestion of Lemnaceae for Biogas Production","authors":"Lillian Lower,&nbsp;Yaojing Qiu,&nbsp;Ryan C. Sartor,&nbsp;William Joe Sagues,&nbsp;Jay J. Cheng","doi":"10.1007/s12155-025-10824-0","DOIUrl":"10.1007/s12155-025-10824-0","url":null,"abstract":"<div><p>Anaerobic digestion of sustainably sourced biomass to generate biogas is a vital form of renewable energy that provides significant benefits to the environment. Lemnaceae, commonly referred to as duckweed, has shown great potential as a next-generation biomass feedstock for anaerobic digestion due to its rapid growth rates, low lignin content, and ability to remove nutrients from wastewater. However, research in this area is largely focused on the mesophilic (35 °C) anaerobic digestion of duckweed. For the first time, batch thermophilic anaerobic digestion was performed using three different duckweed varieties grown on swine lagoon wastewater to ascertain the biochemical methane potential (BMP) of the biomasses and estimate parameters associated with the kinetics of the digestion process. The BMPs of the three duckweed varieties were 205 ± 5, 217 ± 5, and 262 ± 7 mL CH₄ g⁻¹ volatile solids (VS) for the local variety (OxNC), <i>Lemna gibba</i> (8678), and <i>Lemna gibba</i> (7741), respectively. Four kinetic models were fitted to the experimental data: first order, modified Gompertz, transference, and logistic function. Unique to this study, inoculum from continuous thermophilic anaerobic digesters processing identical feedstocks was used during the BMP, causing the absence of a lag phase. The first-order model predicted the hydrolysis constant (<i>k</i>) to be 0.205–0.285 day⁻¹, which is similar to the hydrolysis constants reported in the literature for effective anaerobic digestion systems, thereby demonstrating that duckweed biomass has viable degradation rates. In this work, BMP experimentation and kinetic modeling have demonstrated the viability of anaerobically digesting multiple varieties of duckweed biomass under thermophilic conditions.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-025-10824-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Food Waste Ash Supported Nickel Catalyst to Steam Gasification of Food Waste for Enhanced Tar Reduction and Hydrogen Production","authors":"Aayush Raizada,&nbsp;Amresh Shukla,&nbsp;Sanjeev Yadav,&nbsp;Sourodipto Modak,&nbsp;Priyanka Katiyar","doi":"10.1007/s12155-025-10822-2","DOIUrl":"10.1007/s12155-025-10822-2","url":null,"abstract":"<div><p>In this study, a novel catalyst was developed by loading 5-10wt% Ni on food waste ash. The food waste ash worked as a support and promoter for the Ni catalyst. Thereafter, the catalyst was tested for enhanced tar reduction and higher H₂ production during steam gasification of food waste. The performance of this catalyst was evaluated using four different steam gasification processes; (i) conventional overlapping process (COP), (ii) COP in the presence of a catalyst (COP + catalyst), (iii) integrated two-stage process (ITP) and (iv) ITP in the presence of a catalyst (ITP + catalyst). All the experiments were performed at the constant temperature of 850 °C with a steam flow rate of 2.92 mL/min in a downdraft gasifier. Results showed that 33.3% catalyst content in the feed to the conventional gasification process of (COP + catalyst) enhanced the tar reduction by almost 90% and increased the syngas yield. The process of COP + catalyst yielded the highest syngas production at 91.90%. However, the use of the same catalyst did not enhance the tar reduction and syngas yield from the integrated process (ITP + catalyst) Additionally, the syngas composition showed that the hydrogen fraction in syngas from the processes with catalysts (COP + catalyst and ITP + catalyst) was higher (71.74% and 65.76%, respectively) than that from COP (66.27%) and ITP (59.75%) respectively. Therefore, the hydrogen yield was found to be highest (1.3 m³/kg) for COP + catalyst, as syngas and hydrogen fraction in syngas were highest for COP + catalyst. The tar composition indicated that tar from COP and ITP contained the highest fraction of anhydrous sugars (~ 23% &amp; ~ 27%, respectively), whereas tar from COP + catalyst contained the highest fraction of oxygenated cyclic compounds (~ 17%) and tar from ITP + catalyst contained the highest fraction of aliphatic hydrocarbons (~ 18%). Moreover, cyclic hydrocarbons, aromatic hydrocarbons, esters, and aliphatic alcohols were present in a lesser fraction in tar from COP + catalyst and ITP + catalyst than from COP and ITP.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techno-Economic Analysis of Biodiesel Production from Chlorella vulgaris Using Different Potential Biorefinery Approaches","authors":"Sudhanthiran M.C.,&nbsp;Muttu Pandian P.,&nbsp;Febin Mathew,&nbsp;M. Perumalsamy","doi":"10.1007/s12155-025-10823-1","DOIUrl":"10.1007/s12155-025-10823-1","url":null,"abstract":"<div><p>Biodiesel from microalgae offers a renewable alternative to fossil fuels, with carbon dioxide utilization and capturing lipids without competing with food resources. The extraction, drying, and transesterification processes play a crucial role in converting raw biomass into high-quality biofuel. In this article, <i>Chlorella vulgaris</i> was grown in optimized conditions to improve the lipid content, and biodiesel was synthesized. Lipid content was evaluated from microalgal biomass, and the obtained data were given as input to two different production pathways, viz. solvent extraction and in situ transesterification. When utilizing the extraction and drying processes in the former method, it was discovered that they are the major cost contributors, which were eliminated in the latter through in situ transesterification. Optimization of various operating variables, such as methanol-oil molar ratio, reaction time, reaction temperature, number of stages, feed stage for distillation columns, and water and hexane flow rate for recovery of FAME, was studied in the simulation process. The solvent extraction method achieved 92% oil conversion, with 98% methanol recovery and 96% ester recovery after distillation. The in situ transesterification process achieved 92% oil-to-FAME conversion, with a payback period of 1.72 years for the non-heat integrated process and 1.88 years for the heat-integrated process. Capital costs were $3.48 million (non-heat integrated) and $4.51 million (heat integrated) compared to solvent extraction at $5.05 million (non-heat integrated) and $6.49 million (heat integrated), demonstrating superior economic efficiency. A techno-economic analysis reveals that in situ transesterification has the lowest capital cost and payback period but higher operating costs due to methanol usage; however, with process intensification and optimized configurations, it could become a commercially viable approach for biodiesel production. Regulatory frameworks and infrastructure investment support scalability, while eliminating costly steps like drying enhances economic and environmental sustainability.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass Gasification as a Viable Alternative for Small-scaled Combined Heat and Power Technologies in Remote Communities in Canada","authors":"Christoph Schilling,&nbsp;Blas Mola-Yudego,&nbsp;Marian Marinescu,&nbsp;Christopher Gaston,&nbsp;Dominik Röser","doi":"10.1007/s12155-024-10812-w","DOIUrl":"10.1007/s12155-024-10812-w","url":null,"abstract":"<div><p>The use of forest biomass could drastically reduce the environmental impacts of fossil fuel usage for heat and power in remote communities and can provide new opportunities for employment, retaining money inside communities. Here, we present the techno-economic feasibility of alternative gasification technologies for CHP uses in three remote off-grid communities in Canada. The analysis includes different scenarios of fuel price and operation costs, as well as two different feedstocks, wood pellets and wood chips. The results show potential for successful implementation, subject to planning on the specific conditions and location of the community. Power generation costs vary widely depending on the available biomass price, utilization of heat as well the power output of the system, ranging from about 0.25 CAD/kWh to over 1.20 CAD/kW. Economic support for biomass or removal of diesel subsidies would have a significant impact on biomass CHP implementations. The feasibility of the investigated systems is not dependent on the economics or technology itself but (i) availability of quality feedstock, (ii) utilization of heat for additional revenue generation, (iii) the utilization of the systems, (iv) community-driven bioeconomy alternatives and (v) carbon credit opportunities.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-024-10812-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physicochemical and Energy Characteristics of Biochar and Hydrochar Derived from Cotton Stalks: A Comparative Study","authors":"Prasanta Majee,&nbsp;Sudheekar Reddy Periyavaram,&nbsp;Lavakumar Uppala,&nbsp;P. Hari Prasad Reddy","doi":"10.1007/s12155-025-10816-0","DOIUrl":"10.1007/s12155-025-10816-0","url":null,"abstract":"<div><p>Burning agricultural biomass in the field significantly contributes to air pollution, particularly in the Indian context, where numerous cities have consistently ranked among the world's most polluted over the past few decades. The investigation endeavors to examine the potential utilization of cotton stalks as an environmentally friendly and sustainable energy source. During the investigation, biochar was generated through pyrolysis at temperatures of 300, 500, and 700 ˚C for 4 h, while hydrochars were produced via hydrothermal carbonization (HTC) at 180, 210, and 240 ˚C for the same duration. The findings revealed that hydrochar exhibited higher mass and energy yields, with mass yields of 60 ± 7% compared to 41 ± 10% for biochar, and energy yields of 87 ± 1% compared to 63 ± 5% for biochar. Elemental analysis results indicated an increase in carbon percentage with rising process temperatures, with carbon content increasing from 59% at 300 ˚C to 78% at 700 ˚C for pyrolysis, and from 49% at 180 ˚C to 63% at 240 ˚C for HTC. The biochar synthesized at 700 ˚C demonstrated the highest measured high heating value (HHV_m) of 29.83 MJ/kg, whereas for HTC, the HHV_m of 25.88 MJ/kg was reported for hydrochar synthesized at 240 ˚C. From the computed thermal kinetic parameters, it is evident that the biochars are more thermally stable than hydrochars and raw cotton. According to the Van Krevelen diagram, both biochar and hydrochar products exhibited improved fuel properties. The cumulative evidence suggests a ground-breaking potential for utilizing these char products as sustainable solid fuel alternatives.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling and Design of Renewable Propane Production Through Hydrotreatment of Vegetable Oils","authors":"Bruno Bee Ramirez,&nbsp;Larissa Thaís Bruschi,&nbsp;Luiz Alexandre Kulay,&nbsp;Moisés Teles dos Santos","doi":"10.1007/s12155-025-10821-3","DOIUrl":"10.1007/s12155-025-10821-3","url":null,"abstract":"<div><p>With the growing demand for sustainable energy solutions, renewable propane (rC3) can be a suitable alternative to fossil liquefied petroleum gas (LPG), with potential lower environmental impacts. This study aims to design and simulate a rC3 production process via hydrotreatment of vegetable oils (HVO) to access the technical performance of this route. A comparison between various feedstocks (soybean, sunflower, canola, and palm oils) and downstream processes, namely, cryogenic distillation and chemical absorption, is discussed. The results were evaluated in terms of the key performance parameters: rC3 yield, specific hydrogen consumption, specific energy consumption, and CO₂ emissions. Moreover, an artificial neural network (ANN) model was developed to predict the key performance parameters based on the triglyceride composition of vegetable oils. The rC3 yield was close to 5 wt% for all vegetable oils, and the highest yield was obtained via palm oil hydrotreatment. The rC3 purity obtained in both separation processes was greater than 90%, with chemical absorption separation resulting in lower CO₂ emissions and lower energy consumption than the cryogenic distillation process. The ANN application for predicting the key performance parameters based on triglyceride composition presented correlation agreement &gt; 0.9930 with the simulation results.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-Assisted Preparation of Solid Recovered Fuel from Food Waste and its Quality Prediction Using Linear Programming","authors":"Quande Qin,&nbsp;Manjula Natesan,&nbsp;Ying-Chu Chen","doi":"10.1007/s12155-025-10817-z","DOIUrl":"10.1007/s12155-025-10817-z","url":null,"abstract":"<p>This study presents a novel method for producing solid recovered fuel (SRF) from food waste (FW) using microwave-assisted heating. FW with high moisture content was mixed with plastics to enhance the quality of SRF, achieving an 84% moisture reduction in just 6 min under 1000 W microwave irradiation. This method achieves moisture reduction much faster than conventional methods such as hot air drying, which typically require several hours. Dehydration efficiency was optimized, particularly when the initial moisture content was below 30%. This method offers a faster, energy-efficient alternative to traditional processes such as anaerobic digestion, contributing to waste-to-energy advancements and sustainability by reducing processing time and energy demands. A linear programming model was developed to predict the net calorific values (NCV) of SRFs, achieving an error margin of less than 4.95%, which compares favorably with industry benchmarks. The study also showed that adding polypropylene (PP) plastic increased volatile content and reduced ash content, enhancing SRF quality. These findings highlight a cost-effective and scalable solution for converting FW into renewable energy, paving the way for broader adoption in waste management and sustainable energy sectors. This research provides practical insights for improving waste-to-fuel conversion practices while addressing key challenges in FW processing.</p><p>The findings of this study offer valuable insights for industries involved in renewable energy generation, providing a practical approach for assessing the quality of solid recovered fuel (SRF). This method not only enhances the accuracy of SRF quality determination but also contributes to significant time and cost savings, supporting more efficient and sustainable waste-to-energy conversion processes.</p><p>This study successfully produced solid recovered fuel (SRF) from food waste (FW), effectively addressing the challenges posed by its high moisture content. The material properties of the SRF were utilized to develop a linear programming model capable of accurately predicting SRF quality.</p>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the Thermal and Physical Properties of Biochar Derived from Pre-washed Arabica Coffee Agroindustry Residues","authors":"Adi Setiawan,&nbsp;Siti Nurjannah,&nbsp;Shafira Riskina,&nbsp;Zahra Fona,&nbsp; Muhammad,&nbsp;Matthew Drewery,&nbsp;Eric M. Kennedy,&nbsp;Michael Stockenhuber","doi":"10.1007/s12155-025-10818-y","DOIUrl":"10.1007/s12155-025-10818-y","url":null,"abstract":"<div><p>The excessive availability of coffee-cherry processing residues has garnered attention, owing to potential environmental concerns associated with ground disposal. The current investigation aims to disclose the characteristics of two main coffee agroindustry residues, i.e., coffee pulp and parchment, as well as the resulting biochar which is produced without chemicals and low energy involved. The effects of washing raw biomass on biochar’s physical–chemical properties were investigated. The pre-washed samples were prepared through the following steps: washing, soaking for 20 h, draining, rinsing, and drying under sunlight for 3 days. A slow pyrolysis process was performed at 420 °C in a pilot-scale apparatus to produce biochar. The results show that the pre-washing of feedstock reduced the ash content in coffee pulp biochar from 28.23 to 11.93%. The ash content of coffee parchment biochar decreased from 9.68 to 5.66% as a result of the washing treatment of the raw material. Furthermore, coffee pulp biochar experienced a 25.8% reduction in surface area, while 14% of the coffee parchment was lost due to washing treatment of raw feedstocks. The findings presented in this study offer new insights that are crucial for evaluating the feasibility and advancing the development of a large-scale commercial process for managing coffee agro-industry residues.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing Anaerobic Digestion of Biodiesel Byproducts: A Comprehensive Review","authors":"Blen W. Gebreegziabher,&nbsp;Amare A. Dubale,&nbsp;Muyiwa S. Adaramola,&nbsp;John Morken","doi":"10.1007/s12155-025-10820-4","DOIUrl":"10.1007/s12155-025-10820-4","url":null,"abstract":"<div><p>The energy crisis, climate change, and insufficient waste management practices are compelling factors driving research into sustainable waste-to-resource technologies. Anaerobic digestion, aiming to recover energy and nutrients from organic waste, aligns with the circular economy's principles. This paper provides a comprehensive overview of utilizing biodiesel byproducts for biogas production, exploring techniques for enhancing biogas yield and addressing associated challenges. Assessing the potential of biodiesel byproducts highlights their environmental sustainability and economic viability for biogas production. Non-edible seed cake, rich in nutrients, shows promise for significant biogas yield. Additionally, crude glycerol, easily biodegradable, is identified as a promising co-digester, aiding in digesting recalcitrant substrates. Empirical data reveals remarkable methane yield boosts, ranging from 14 to 226% when co-digesting with crude glycerol. Moreover, the resulting digestate enhances soil fertility, promoting healthier plant growth and productivity. Challenges in anaerobic digestion, such as substrate C/N ratio imbalance and recalcitrance, necessitate strategies like substrate pretreatment and co-digestion with compatible materials to optimize biogas yield. Furthermore, advancements in anaerobic digestion technologies are crucial for effectively converting biodiesel wastes into biogas. Additionally, interdisciplinary investigations, including techno-economic analysis, lifecycle assessment, and sensitivity analysis, are vital to enhance and validate the feasibility of anaerobic digestion for biodiesel byproducts. This review serves as a valuable resource for future utilization of biodiesel byproducts for biogas production.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"18 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12155-025-10820-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}