Biofuel Research Journal-BRJ最新文献

Design and construction of artificial microbial consortia to enhance lignocellulosic biomass degradation 人工微生物群落的设计与构建促进木质纤维素生物质降解

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-09-01 DOI: 10.18331/brj2023.10.3.3

V. Vu, Csilla Kohári-Farkas, Róbert Filep, Gábor Laszlovszky, My Thi Ban, E. Bujna, V.K. Gupta, Quang D. Nguyen

{"title":"Design and construction of artificial microbial consortia to enhance lignocellulosic biomass degradation","authors":"V. Vu, Csilla Kohári-Farkas, Róbert Filep, Gábor Laszlovszky, My Thi Ban, E. Bujna, V.K. Gupta, Quang D. Nguyen","doi":"10.18331/brj2023.10.3.3","DOIUrl":"https://doi.org/10.18331/brj2023.10.3.3","url":null,"abstract":"Cellulose-rich agricultural residues are promising renewable sources for producing various value-added products such as 2nd generation biofuels. However, the efficiency of the bioconversion process is not always satisfactory due to the slow and incomplete degradation of lignocellulosic biomass. An interesting approach would be using microbial communities with high lignocellulose-degrading ability for environmentally friendly pretreatment. This study focused on characterizing the degradation performance of bacteria, fungal, and yeast strains and designing and constructing different microbial consortia for solid-state treatment of wheat bran and wheat straw. The microbial consortia, namely BFY4 and BFY5, contained different bacteria, fungal, and yeast led to high ratios of sugar accumulation ranging from 3.21 to 3.5 with degradation rates over 33%, owing to more favorable hydrolytic enzyme activities and improved reducing sugar yield during the process. After 72 h, the highest FPase (0.213 IU/gds) and xylanase (7.588 IU/gds) activities were also detected in the wheat straw pretreated by BFY4 and BFY5, respectively, while CMCase activity peaked (0.928 IU/gds) when wheat bran was used as substrate. The amount of released glucose increased during the treatment process when the two substrates were used in the same ratio. Our results indicated that substrate composition also plays an important role in the degradation capacity of mixed cultures. These findings can be instrumental in advancing the primary knowledge required to apply such bioprocesses at the pilot scale.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43910134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Towards nationwide implementation of 40% biodiesel blend fuel in Indonesia: a comprehensive road test and laboratory evaluation 在印度尼西亚实现40%生物柴油混合燃料的全国实施:全面的道路试验和实验室评估

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-09-01 DOI: 10.18331/brj2023.10.3.2

Mokhtar Mokhtar, Anis Sukmono, H. Setiapraja, Muhammad Ma’ruf, S. Yubaidah, ihwan haryono, Budi Rochmanto, Respatya Teguh Soewono, Kurnia Fajar Adhi Sukra, Arfi Thahar, Efendi Manurung, Cahyo Setyo Wibowo, Setyo Widodo, Faqih Supriyadi, Riva Yudha Abriyant, Dedi Suntoro, Faridha Faridha, I. Reksowardojo

{"title":"Towards nationwide implementation of 40% biodiesel blend fuel in Indonesia: a comprehensive road test and laboratory evaluation","authors":"Mokhtar Mokhtar, Anis Sukmono, H. Setiapraja, Muhammad Ma’ruf, S. Yubaidah, ihwan haryono, Budi Rochmanto, Respatya Teguh Soewono, Kurnia Fajar Adhi Sukra, Arfi Thahar, Efendi Manurung, Cahyo Setyo Wibowo, Setyo Widodo, Faqih Supriyadi, Riva Yudha Abriyant, Dedi Suntoro, Faridha Faridha, I. Reksowardojo","doi":"10.18331/brj2023.10.3.2","DOIUrl":"https://doi.org/10.18331/brj2023.10.3.2","url":null,"abstract":"This research focused on evaluating the technical viability of using biodiesel with a blending ratio of 40% v/v, which is expected to be implemented soon in Indonesia. Two kinds of biodiesel blends were prepared, a blend of 60% diesel fuel and 40% biodiesel (B40) and a blend of 60% diesel fuel, 30% biodiesel, and 10% hydrogenated vegetable oil (HVO) (B30D10). The fuels were tested on EuroII vehicles without any engine modifications through a 50,000 km endurance road test. Laboratory tests were also performed at certain traveled distances to evaluate various engine parameters, including power, fuel economy, exhaust emissions, and used engine oil properties. Engine components were inspected upon the completion of the road test. Cold-start ability was also examined to confirm the suitability of the investigated biofuels at low-temperature operating conditions in Indonesia. The road test results showed that vehicles fuelled with B40 and B30D10 could reach a distance of 50,000 km without encountering any technical issues. The laboratory evaluation during the road test indicated that B30D10 had a higher power and fuel economy than B40, with a maximum difference of 2%. Furthermore, B30D10 emitted lower CO, HC, and PM emissions than B40 throughout the distance traveled, with maximum differences of 11.4%, 14.7%, and 22.6%, respectively, but led to 15% higher NOx. Engine component inspection and used engine oil analysis confirmed the fulfillment of the manufacturer's recommendations for both B40 and B30D10. Finally, B40 and B30D10 were suitable for operating at low ambient temperatures in Indonesia, confirming them as practical options to be implemented in the nationwide 40% biodiesel blend fuel.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46168722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A critical review of multiple alternative pathways for the production of a high-value bioproduct from sugarcane mill byproducts: the case of adipic acid 从甘蔗厂副产品中生产高价值生物产品的多种替代途径:以己二酸为例

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-09-01 DOI: 10.18331/brj2023.10.3.5

Yakim Cronjé, S. Farzad, M. Mandegari, J. Görgens

{"title":"A critical review of multiple alternative pathways for the production of a high-value bioproduct from sugarcane mill byproducts: the case of adipic acid","authors":"Yakim Cronjé, S. Farzad, M. Mandegari, J. Görgens","doi":"10.18331/brj2023.10.3.5","DOIUrl":"https://doi.org/10.18331/brj2023.10.3.5","url":null,"abstract":"Biobased fuels, chemicals, and materials can replace fossil fuel products and mitigate climate change. Sugarcane mills have the potential to produce a wider range of biobased chemicals in a similar approach to bioethanol production, including adipic acid. Multiple alternative pathways for converting simple sugars into adipic acid have been described, with the potential for integration into a sugar mill. The economics and expected greenhouse gas emissions reductions compared to fossil-based adipic acid were investigated in the present study to identify preferred pathways for implementation in sugarcane biorefineries. Nine biobased pathways for adipic acid production were screened for technical performances, resulting in the selection of four preferred options for rigorous comparison, i.e., direct microbial conversion of sugars, and production via cis,cis-muconic acid, glucaric acid, and glycerol as intermediate, obtained from sugars. The minimum selling prices of adipic acid for an attractive return on investment were determined for these pathways, using either A-molasses or a combination of A-molasses and pretreated sugarcane lignocelluloses in biorefineries designed to be energy-self-sufficient. Adipic acid production from A-molasses via cis,cis-muconic acid was the best overall performing scenario with the lowest minimum selling price of USD 2,538/Mt and lowered greenhouse gas emissions (2,325 g CO2 eq/kg wet) compared to fossil-based adipic acid production. The scenarios with combined A-molasses and lignocellulosic feedstock had increased minimum selling prices by 29 to 101% compared to adipic acid production from A molasses via cis,cis-muconic acid.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44038922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Nanomaterials and their role in advancing biodiesel feedstock production: A comprehensive review 纳米材料及其在推进生物柴油原料生产中的作用:综述

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-09-01 DOI: 10.18331/brj2023.10.3.4

Xiangmeng Chen, Homa Hosseinzadeh-Bandbafha, Hamed Kazemi, Shariat Panahi, M. Dehhaghi, Y. Orooji, Hossein Shahbeik, Omid Mahian, Hassan Karimi-Maleh, Alawi Sulaiman, Changtong Mei, M. Kiehbadroudinezhad, A. Nizami, Gilles G. Guillemin, Su Shiung Lam, Wanxi Peng, Ki-Hyun Kim, M. Aghbashlo, M. Tabatabaei, Tabatabaei M. Nanomaterials

{"title":"Nanomaterials and their role in advancing biodiesel feedstock production: A comprehensive review","authors":"Xiangmeng Chen, Homa Hosseinzadeh-Bandbafha, Hamed Kazemi, Shariat Panahi, M. Dehhaghi, Y. Orooji, Hossein Shahbeik, Omid Mahian, Hassan Karimi-Maleh, Alawi Sulaiman, Changtong Mei, M. Kiehbadroudinezhad, A. Nizami, Gilles G. Guillemin, Su Shiung Lam, Wanxi Peng, Ki-Hyun Kim, M. Aghbashlo, M. Tabatabaei, Tabatabaei M. Nanomaterials","doi":"10.18331/brj2023.10.3.4","DOIUrl":"https://doi.org/10.18331/brj2023.10.3.4","url":null,"abstract":"Sustainable socio-economic development largely depends on the sustainability of the energy supply from economic, environmental, and public health perspectives. Fossil fuel combustion only meets the first element of this equation and is hence rendered unsustainable. Biofuels are advantageous from a public health perspective, but their environmental and economic sustainability might be questioned considering the conflicts surrounding their feedstocks, including land use change and fuel vs. food conflict. Therefore, it is imperative to put more effort into addressing the downsides of biofuel production using advanced technologies, such as nanotechnology. In light of that, this review strives to scrutinize the latest developments in the application of nanotechnology in producing biodiesel, a promising alternative to fossil diesel with proven environmental and health benefits. The main focus is placed on nanotechnology applications in the feedstock production stage. First, the latest findings concerning the application of nanomaterials as nanofertilizers and nanopesticides to improve the performance of oil crops are presented and critically discussed. Then, the most promising results reported recently on applying nanotechnology to boost biomass and oil production by microalgae and facilitating microalgae harvesting are reviewed and mechanistically explained. Finally, the promises held by nanomaterials to enhance animal fat production in livestock, poultry, and aquaculture systems are elaborated. Despite the favorable features of using nanotechnology in biodiesel feedstock production, the presence of nanoparticles in living systems is also associated with important health and environmental challenges, which are critically covered and discussed in this work.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48766235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial Board 编辑委员会

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Biofuel Research Journal-BRJ Pub Date : 2023-09-01 DOI: 10.18331/brj2023.10.3.1

引用次数: 0

Machine learning in biohydrogen production: a review 生物制氢中的机器学习：综述

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-06-01 DOI: 10.18331/brj2023.10.2.4

Avinash Alagumalai, Balaji Devarajan, Huan-zhi Song, S. Wongwises, R. Ledesma-Amaro, O. Mahian, M. Sheremet, E. Lichtfouse

{"title":"Machine learning in biohydrogen production: a review","authors":"Avinash Alagumalai, Balaji Devarajan, Huan-zhi Song, S. Wongwises, R. Ledesma-Amaro, O. Mahian, M. Sheremet, E. Lichtfouse","doi":"10.18331/brj2023.10.2.4","DOIUrl":"https://doi.org/10.18331/brj2023.10.2.4","url":null,"abstract":"Biohydrogen is emerging as a promising carbon-neutral and sustainable energy carrier with high energy yield to replace conventional fossil fuels. However, biohydrogen commercial uptake is mainly hindered by the supply side. As a result, various operating parameters must be optimized to realize biohydrogen commercial uptake on a large-scale. Recently, machine learning algorithms have demonstrated the ability to handle large amounts of data while requiring less in-depth knowledge of the system and being capable of adapting to evolving circumstances. This review critically reviews the role of machine learning in categorizing and predicting data related to biohydrogen production. The accuracy and potential of different machine learning algorithms are reported. Also, the practical implications of machine learning models to realize biohydrogen uptake by the transportation sector are discussed. The review indicates that machine learning algorithms can successfully model non-linear and complex interactions between operational and performance parameters in biohydrogen production. Additionally, machine learning algorithms can help researchers identify the most efficient methods for producing biohydrogen, leading to a more sustainable and cost-effective energy source.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48476161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Thermodynamic method for analyzing and optimizing pretreatment/anaerobic digestion systems 分析和优化预处理/厌氧消化系统的热力学方法

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-06-01 DOI: 10.18331/brj2023.10.2.2

L. Hansen

{"title":"Thermodynamic method for analyzing and optimizing pretreatment/anaerobic digestion systems","authors":"L. Hansen","doi":"10.18331/brj2023.10.2.2","DOIUrl":"https://doi.org/10.18331/brj2023.10.2.2","url":null,"abstract":"This paper builds a quantitative thermodynamic model for the microbial hydrolysis process (MHP, which uses Caldicellulosiruptor bescii at 75°C for pre-digestion) for producing biogas from a 5-10% aqueous suspension of dairy manure (naturally buffered near pH 7.8 by ammonium bicarbonate) by anaerobic digestion with a mix of acetoclastic and syntrophic methanogenesis. Standard Gibbs energy changes were calculated for the major reactions in pre-digestion, for reactions producing H2, acetate, and CO2 in the digester, and for methanogenesis reactions in the digester. The available data limit the study to analyzing reactions in the digester to reactions of short-chain volatile fatty acids anions. Results are presented as curves of ΔrxnG (Gibbs energy change) vs. acetate concentration. The H2(aq) concentration must be above 1.2×10-9 M to get significant syntrophic methanogenesis, i.e., for ΔrxnG to be negative. The results show syntrophic methanogenesis of propionate, butyrate, and valerate slows as acetate concentration increases because hydrogen production also decreases, and consequently, biogas production from syntrophic methanogenesis slows as acetate increases. Bicarbonate also inhibits both acetoclastic and syntrophic methanogenesis but is necessary to prevent acidification (souring) of the digester. At identical steady-state conditions, acetoclastic methanogenesis runs about 1.4 times faster than syntrophic methanogenesis. Because syntrophic methanogenesis produces acetate catabolized by acetoclastic methanogens, both types of methanogens are necessary to maximize biogas production. The culture in the digester is predicted to evolve to optimize the ratio of acetoclastic methanogens to syntrophic methanogens, a condition signaled by a constant, low acetate concentration in the digester effluent. Obtaining volatile solids reduction as high as 75% with MHP requires a feedstock with less than 25% lignin and a culture of acetoclastic methanogens and syntrophic methanogens and their symbiotic bacteria.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47062008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Enzymatic esterification/transesterification of rice bran acid oil for subsequent γ-oryzanol recovery 米糠酸油的酶促酯化/酯交换反应及其对γ-谷维醇的回收

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-06-01 DOI: 10.18331/brj2023.10.2.3

Chonlatep Usaku, A. Yahya, Phannipha Daisuk, A. Shotipruk

{"title":"Enzymatic esterification/transesterification of rice bran acid oil for subsequent γ-oryzanol recovery","authors":"Chonlatep Usaku, A. Yahya, Phannipha Daisuk, A. Shotipruk","doi":"10.18331/brj2023.10.2.3","DOIUrl":"https://doi.org/10.18331/brj2023.10.2.3","url":null,"abstract":"This study recovered γ-oryzanol from rice bran acid oil (RBAO), following an initial enzymatic esterification/transesterification to selectively convert its glyceride impurities into fatty acid ethyl esters (FAEEs) or biodiesel. γ-oryzanol was then deprotonated and separated from the biodiesel into the resulting aqueous phase via acid-base extraction. Herein, we determine the effects of varying reaction conditions, i.e., ethanol:RBAO molar ratio, temperature, reaction time, enzyme loading, and agitation speed, on the degrees of glyceride removal, γ-oryzanol loss, free fatty acid (FFA) remaining, and biodiesel content. Up to 100% glyceride removal was achieved with a relatively high biodiesel yield (84%) and γ-oryzanol loss as low as 26% under our most suitable reaction conditions (5:1 ethanol:RBAO molar ratio, 40 °C, 24 h reaction time, 10%wt enzyme loading, 200 rpm agitation). Furthermore, of the remaining oryzanol, up to 94% was recovered by the acid-base extraction with 2-4 M ethanolic NaOH solution. Our results suggest that a combination of enzymatic esterification/transesterification with subsequent acid-base extraction offers an efficient alternative approach to the simultaneous production of biodiesel and γ-oryzanol recovery from low-cost RBAO. Based on our analysis of techno-economic and environmental sustainability, integration of the present method into a rice bran oil refinery would make the process profitable, with the minimum use of toxic chemicals and energy.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42103980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A critical review of machine learning for lignocellulosic ethanol production via fermentation route 机器学习在木质纤维素乙醇发酵生产中的应用综述

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-06-01 DOI: 10.18331/brj2023.10.2.5

Ahmet Çoşgun, M. E. Günay, R. Yıldırım

{"title":"A critical review of machine learning for lignocellulosic ethanol production via fermentation route","authors":"Ahmet Çoşgun, M. E. Günay, R. Yıldırım","doi":"10.18331/brj2023.10.2.5","DOIUrl":"https://doi.org/10.18331/brj2023.10.2.5","url":null,"abstract":"In this work, machine learning (ML) applications in lignocellulosic bioethanol production were reviewed. First, the pretreatment-hydrolysis-fermentation route, the most commonly studied alternative, was summarized. Next, a bibliometric analysis was performed to identify the current trends in the field; it was found that ML applications in the field are not only increasing but also expanding their relative share in publications, with bioethanol seeming to be the most frequently researched topic while biochar and biogas are also receiving increased attention in recent years. Then, the implementation of ML for lignocellulosic bioethanol production via this route was reviewed in depth. It was observed that artificial neural network (ANN) is the most commonly used algorithm (appeared in almost 90% of articles), followed by response surface methodology (RSM) (in about 25% of articles) and random forest (RF) (in about 10% of articles). Bioethanol concentration is the most common output variable in the fermentation step, while fermentable sugar and glucose concentration are studied most in hydrolysis. The datasets are usually small, while the fitnesses of the models (R2) are usually high in the papers reviewed. Finally, a perspective for future studies, mostly considering improving data availability, was provided.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":"1 1","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41361056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Boosting the circularity of waste management: pretreated mature landfill leachate enhances the anaerobic digestion of market waste 促进废物管理循环:经预处理的成熟堆填渗滤液可促进市场废物的厌氧消化

IF 13

Biofuel Research Journal-BRJ Pub Date : 2023-03-01 DOI: 10.18331/brj2023.10.1.2

F. Fazzino, Altea Pedullà, P. Calabrò

{"title":"Boosting the circularity of waste management: pretreated mature landfill leachate enhances the anaerobic digestion of market waste","authors":"F. Fazzino, Altea Pedullà, P. Calabrò","doi":"10.18331/brj2023.10.1.2","DOIUrl":"https://doi.org/10.18331/brj2023.10.1.2","url":null,"abstract":"Adequate waste management is essential not only to ensure healthy living conditions but also to mitigate climate change. Accordingly, the research on developing strategies to boost the circularity of waste management systems is ongoing. In this context, two waste streams are concurrently managed to recover energy and materials in the present study. Specifically, real leachate collected from a full-scale mature landfill site was preliminarily treated through active filtration to remove inhibitory substances partially and then tested, at the laboratory scale, as a nutrient solution for semi-continuous anaerobic digestion of a carbonaceous substrate represented by market waste. The results demonstrate that, at an organic loading rate of 1.0 gVS∙L-1∙d-1, the process was impossible without using the nutrient solution, while the nitrogen present in the pretreated leachate could balance the carbon content of the market waste and provide the system with the necessary buffering capacity, ensuring process stability. The average methane yield (approximately 0.29 NL∙gVS-1) was satisfactory and consistent with the literature. Despite the increases in both the organic loading rate (up to 1.5 gVS∙L-1∙d-1) and volume of added pretreated leachate (up to 100% of the dilution medium), the process remained stable with a slightly lower methane yield of 0.21 NL∙gVS-1, thanks to nitrogen supplementation. The potential use of produced methane as a renewable energy source and residual digestate as fertilizer would close the loop of managing these waste streams.","PeriodicalId":46938,"journal":{"name":"Biofuel Research Journal-BRJ","volume":" ","pages":""},"PeriodicalIF":13.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47291384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14