Bioresource Technology Reports最新文献

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Nanoscale non-biochar formulations of banana peel layers for comparison of in vitro adsorption and release of ammonium with demonstration of fertilizing action

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102052

Himarati Mondal , Charli Kaushal , Subramanian Sankaranarayanan , Bhaskar Datta

The convergent ability of non-biochar biomass-formulations to adsorb and release NH₄⁺ has not been extensively investigated. In this work, we have prepared nanoscale non-biochar formulations of banana peel sections and studied their ability to adsorb and release NH₄⁺. A combination of FTIR, XRD, FESEM, EDX, TGA, DTG, BET and DLS highlight the distinctive nanoscale structural, surface and thermal properties of the banana peel formulations. The inner and outer sections of banana peel display attractive surface porosity and superlative adsorption efficiencies towards NH₄⁺ that are superior compared to reported biomass-derived NH₄⁺ adsorbents. The nanoscale banana peel adsorbents display quantitative in vitro release of adsorbed NH₄⁺. The direct treatment of Arabidopsis thaliana with NH₄⁺ loaded banana peel adsorbents result in significant and distinctive enhancements in leaf area, root number, and root length. The nanoscale non-biochar banana peel formulations reported in this work hold promise as eco-friendly and cost-effective adsorbents and fertilizers.

{"title":"Nanoscale non-biochar formulations of banana peel layers for comparison of in vitro adsorption and release of ammonium with demonstration of fertilizing action","authors":"Himarati Mondal , Charli Kaushal , Subramanian Sankaranarayanan , Bhaskar Datta","doi":"10.1016/j.biteb.2025.102052","DOIUrl":"10.1016/j.biteb.2025.102052","url":null,"abstract":"<div><div>The convergent ability of non-biochar biomass-formulations to adsorb and release NH<sub>4</sub><sup>+</sup> has not been extensively investigated. In this work, we have prepared nanoscale non-biochar formulations of banana peel sections and studied their ability to adsorb and release NH<sub>4</sub><sup>+</sup>. A combination of FTIR, XRD, FESEM, EDX, TGA, DTG, BET and DLS highlight the distinctive nanoscale structural, surface and thermal properties of the banana peel formulations. The inner and outer sections of banana peel display attractive surface porosity and superlative adsorption efficiencies towards NH<sub>4</sub><sup>+</sup> that are superior compared to reported biomass-derived NH<sub>4</sub><sup>+</sup> adsorbents. The nanoscale banana peel adsorbents display quantitative <em>in vitro</em> release of adsorbed NH<sub>4</sub><sup>+</sup>. The direct treatment of <em>Arabidopsis thaliana</em> with NH<sub>4</sub><sup>+</sup> loaded banana peel adsorbents result in significant and distinctive enhancements in leaf area, root number, and root length. The nanoscale non-biochar banana peel formulations reported in this work hold promise as eco-friendly and cost-effective adsorbents and fertilizers.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102052"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141921","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

Enhancement of biomethane yield rate in anaerobic co-digestion of cattle dung and untreated vegetable waste through the amendment of water-hyacinth biochar

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2024.102013

Shayaram Basumatary , Harrison Hihu Muigai , Pranab Goswami , Pankaj Kalita

This study investigates the effect of biochar (BC) amendment on the anaerobic co-digestion (AcoD) of cattle dung (CD) and untreated vegetable waste (VW) performed at different co-substrates mixing ratios (CMR) of 70:30, 60:40, 50:50, 40:60, and 30:70 under ambient and mesophilic conditions. The mesophilic BC-added digester with a CMR of 60:40 exhibited 13.19 % and 39.26 % higher cumulative methane yield (CMY) than the corresponding uncontrolled digesters (CMR 60:40) with and without BC-added over 45 days of experiments. Subsequently, considering CMR 60:40, another group of biochemical methane potential experiments was conducted at ambient conditions, incorporating varying amounts of BC, viz. 5, 10, 15, 20, and 25 gL⁻¹. The digester comprising 15 gL⁻¹ BC achieved the highest CMY, recommending it as the optimal amount of BC addition for the AcoD of CD and VW. This study discloses that BC addition is a significant approach to increasing CH₄ yield.

引用次数: 0

Microalgae biocathode coupled polyvinylalcohol proton exchange membrane for performance of recirculation honeycomb microbial fuel cells

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102037

Chin-Tsan Wang , Bhanupriya Das , Imee A. Saladaga

Microbial fuel cells (MFCs) are a renewable energy technology that has garnered global attention for their ability to transform wastewater into electricity while also purifying the water. Honeycomb microbial fuel cells (HMFCs) in recirculation mode represent an innovative approach to integrating a honeycomb structure into an MFC to achieve uniform influent flow, thereby enhancing mass transfer and electricity generation. Numerous commercialization hurdles, notably the high cost of Nafion membrane, render MFCs financially inaccessible for wastewater treatment applications. Furthermore, employing harmful chemicals as reducing agents in cathodes and Pt-based cathodes is impractical for scaled-up systems because of the high costs involved. A novel attempt has been made to use microalgae as a photosynthetic biocatalyst in the cathode in conjunction with low-cost, polyvinyl alcohol membranes (PVA) against Nafion-117 for simultaneous bioelectricity generation and wastewater treatment of domestic wastewater-fed HMFCs. The results show that crosslinked PVA-based HMFC achieves a maximum power density of 42.95 ± 0.12 mW m⁻², an open-circuit voltage (OCV) of 700 mV, and a peak current density of 329.0 mA m⁻², with the lowest ohmic resistance of 26.64 ± 0.33 Ω, outperforming Nafion and neat PVA (NPVA). Furthermore, crosslinked PVA exhibits a COD removal rate of 86 ± 1.6 % by Day 30. While OD₆₈₀ value of 3.46 ± 0.05 reflects the cell growth of the microalgae. These findings suggest that crosslinked PVA is a promising proton exchange membrane (PEM) material for MFCs, with potential benefits for future MFC applications.

{"title":"Microalgae biocathode coupled polyvinylalcohol proton exchange membrane for performance of recirculation honeycomb microbial fuel cells","authors":"Chin-Tsan Wang , Bhanupriya Das , Imee A. Saladaga","doi":"10.1016/j.biteb.2025.102037","DOIUrl":"10.1016/j.biteb.2025.102037","url":null,"abstract":"<div><div>Microbial fuel cells (MFCs) are a renewable energy technology that has garnered global attention for their ability to transform wastewater into electricity while also purifying the water. Honeycomb microbial fuel cells (HMFCs) in recirculation mode represent an innovative approach to integrating a honeycomb structure into an MFC to achieve uniform influent flow, thereby enhancing mass transfer and electricity generation. Numerous commercialization hurdles, notably the high cost of Nafion membrane, render MFCs financially inaccessible for wastewater treatment applications. Furthermore, employing harmful chemicals as reducing agents in cathodes and Pt-based cathodes is impractical for scaled-up systems because of the high costs involved. A novel attempt has been made to use microalgae as a photosynthetic biocatalyst in the cathode in conjunction with low-cost, polyvinyl alcohol membranes (PVA) against Nafion-117 for simultaneous bioelectricity generation and wastewater treatment of domestic wastewater-fed HMFCs. The results show that crosslinked PVA-based HMFC achieves a maximum power density of 42.95 ± 0.12 mW m<sup>−2</sup>, an open-circuit voltage (OCV) of 700 mV, and a peak current density of 329.0 mA m<sup>−2</sup>, with the lowest ohmic resistance of 26.64 ± 0.33 Ω, outperforming Nafion and neat PVA (NPVA). Furthermore, crosslinked PVA exhibits a COD removal rate of 86 ± 1.6 % by Day 30. While OD<sub>680</sub> value of 3.46 ± 0.05 reflects the cell growth of the microalgae. These findings suggest that crosslinked PVA is a promising proton exchange membrane (PEM) material for MFCs, with potential benefits for future MFC applications.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102037"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141849","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

Improving algae-assisted bioelectrochemical system with the integration of advanced cell disruption process for lipid recovery: A mini-review

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102041

Akash Tripathi , Swati Das , Makarand M. Ghangrekar , Brajesh Kumar Dubey

The production of sustainable biofuel from algae is hindered by energy-intensive conventional processes that provides low-quality yield at high cost, rendering them impractical for fulfilling global energy demands. In this regard, algal-microbial fuel cells (A-MFCs) offer a promising alternative by simultaneously recovering bioenergy while treating wastewater, and sequestering CO₂. However, lipid productivity in A-MFCs remains suboptimal due to challenges in nutrient management, low yields, operational instability, and inefficient reactor designs. Therefore, this review underscores the potential of cultivating lipid-rich algae in A-MFCs, coupled with advanced cell disruption and extraction technologies, to enhance biomass and bioenergy production. Chemical processes like Fenton oxidation, electro and photo-oxidation, facilitate in-situ cell disruption. Whereas, the biological like enzymatic process also provides an amicable condition for solvent-free algal lipid extraction. Hence, integrating A-MFCs with biorefinery frameworks can promote circular bioeconomy and direct lipid recovery, necessitating further research to address operational challenges and optimise sustainable biofuel production.

{"title":"Improving algae-assisted bioelectrochemical system with the integration of advanced cell disruption process for lipid recovery: A mini-review","authors":"Akash Tripathi , Swati Das , Makarand M. Ghangrekar , Brajesh Kumar Dubey","doi":"10.1016/j.biteb.2025.102041","DOIUrl":"10.1016/j.biteb.2025.102041","url":null,"abstract":"<div><div>The production of sustainable biofuel from algae is hindered by energy-intensive conventional processes that provides low-quality yield at high cost, rendering them impractical for fulfilling global energy demands. In this regard, algal-microbial fuel cells (A-MFCs) offer a promising alternative by simultaneously recovering bioenergy while treating wastewater, and sequestering CO<sub>2</sub>. However, lipid productivity in A-MFCs remains suboptimal due to challenges in nutrient management, low yields, operational instability, and inefficient reactor designs. Therefore, this review underscores the potential of cultivating lipid-rich algae in A-MFCs, coupled with advanced cell disruption and extraction technologies, to enhance biomass and bioenergy production. Chemical processes like Fenton oxidation, electro and photo-oxidation, facilitate in-situ cell disruption. Whereas, the biological like enzymatic process also provides an amicable condition for solvent-free algal lipid extraction. Hence, integrating A-MFCs with biorefinery frameworks can promote circular bioeconomy and direct lipid recovery, necessitating further research to address operational challenges and optimise sustainable biofuel production.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102041"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141871","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

Economical assessment of pilot level calcium propionate production from unutilized food

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102030

Poornima Rajendran , Abiram Karanam Rathankumar , Kongkona Saikia , Vinoth Kumar Vaidyanathan , Dhanya Vishnu , Harish Kumar

Food waste biorefinery approach is an effective route for waste management and the generated food waste can be exploited to produce high-cost products like propionic acid. The current study aims at food waste valorization for calcium propionate synthesis. Among the microorganisms screened, Propionibacterium shermanni was selected based on clear zone formation in the presence of calcium carbonate. Subsequently, the unserved food waste was pre-treated with enzymes- amylase and protease, and used for fermentative production. The process parameters were statistically optimized using Box Behnken design. By applying the optimized parameters, pH 6.5 ± 0.1, temperature 35 ± 2 °C and time 15 ± 0.5 days, a maximum of ∼86 % yield was obtained. To validate the optimized data, fed batch fermentation was set up resulting in the production of 7.9 g/100 mL calcium propionate under the optimized conditions. Finally, cost analysis was performed, showing that the utilization of food waste resulted in 1.6–fold lesser cost than other carbon sources.

{"title":"Economical assessment of pilot level calcium propionate production from unutilized food","authors":"Poornima Rajendran , Abiram Karanam Rathankumar , Kongkona Saikia , Vinoth Kumar Vaidyanathan , Dhanya Vishnu , Harish Kumar","doi":"10.1016/j.biteb.2025.102030","DOIUrl":"10.1016/j.biteb.2025.102030","url":null,"abstract":"<div><div>Food waste biorefinery approach is an effective route for waste management and the generated food waste can be exploited to produce high-cost products like propionic acid. The current study aims at food waste valorization for calcium propionate synthesis. Among the microorganisms screened, <em>Propionibacterium shermanni</em> was selected based on clear zone formation in the presence of calcium carbonate. Subsequently, the unserved food waste was pre-treated with enzymes- amylase and protease, and used for fermentative production. The process parameters were statistically optimized using Box Behnken design. By applying the optimized parameters, pH 6.5 ± 0.1, temperature 35 ± 2 °C and time 15 ± 0.5 days, a maximum of ∼86 % yield was obtained. To validate the optimized data, fed batch fermentation was set up resulting in the production of 7.9 g/100 mL calcium propionate under the optimized conditions. Finally, cost analysis was performed, showing that the utilization of food waste resulted in 1.6–fold lesser cost than other carbon sources.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102030"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141909","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

Integrated supply chain optimization model for sorghum-based bioethanol industry on a small scale: Case study in East Java Province, Indonesia

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102051

Soni Solistia Wirawan , Agus Sugiyono , Ni Putu Dian Nitamiwati , Palupi Tri Widiyanti , Romelan Romelan , Yayan Heryana , Ana Nurhasanah , Maharani Dewi Solikhah

The Indonesian government set a policy to use renewable energy, including bioethanol, that is still in the market trial stage. Sorghum is a plant that has the potential to be quite promising as a raw material for making bioethanol. This study focused on optimizing the supply chain for small-scale integrated sorghum-based bioethanol industry. A linear programming model was used to formulate the optimal result. Key aspects included farmer-owned sorghum plantations supplying three bioethanol plants with a capacity of 4 klpd (kiloliters per day) each, transportation, and distribution of bioethanol to three fuel depots in East Java, Indonesia. Results showed that over 10 years, the total supply chain cost was 932 billion IDR, while revenues from bioethanol and by-products reached 1.272 billion IDR, resulting in a net income of 340 billion IDR. The calculation results indicated that the use of sweet sorghum for bioethanol and by-products is feasible to develop.

{"title":"Integrated supply chain optimization model for sorghum-based bioethanol industry on a small scale: Case study in East Java Province, Indonesia","authors":"Soni Solistia Wirawan , Agus Sugiyono , Ni Putu Dian Nitamiwati , Palupi Tri Widiyanti , Romelan Romelan , Yayan Heryana , Ana Nurhasanah , Maharani Dewi Solikhah","doi":"10.1016/j.biteb.2025.102051","DOIUrl":"10.1016/j.biteb.2025.102051","url":null,"abstract":"<div><div>The Indonesian government set a policy to use renewable energy, including bioethanol, that is still in the market trial stage. Sorghum is a plant that has the potential to be quite promising as a raw material for making bioethanol. This study focused on optimizing the supply chain for small-scale integrated sorghum-based bioethanol industry. A linear programming model was used to formulate the optimal result. Key aspects included farmer-owned sorghum plantations supplying three bioethanol plants with a capacity of 4 klpd (kiloliters per day) each, transportation, and distribution of bioethanol to three fuel depots in East Java, Indonesia. Results showed that over 10 years, the total supply chain cost was 932 billion IDR, while revenues from bioethanol and by-products reached 1.272 billion IDR, resulting in a net income of 340 billion IDR. The calculation results indicated that the use of sweet sorghum for bioethanol and by-products is feasible to develop.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102051"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141870","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

Musa ABB (Kachkal) banana waste derived heterogeneous nanocatalyst for transesterification of binary oil mixture of Jatropha curcas and Pongamia pinnata to biodiesel

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2024.102018

Siri Fung Basumatary , Bipul Das , Sujata Brahma , Sanjay Basumatary

In this study, a post-harvest plant of Musa ABB, commonly known as ‘Kachkal’ was explored to prepare a catalyst and applied for jatropha pongamia oil methyl esters (JPOME) synthesis from Jatropha curcas and Pongamia pinnata oils blended in a 1:1 ratio. The peel and trunk of the plant were burnt to ashes and calcined at 550 °C for 1 h to achieve the desired catalysts. Sophisticated analytical approaches such as FESEM-EDX, XRD, FT-IR, BET, XPS, HRTEM, and TGA were implemented to characterize the prepared catalysts. The maximum biodiesel (JPOME) yield of 96.34 ± 1.30 % was secured in 10 ± 2 min by using calcined kachkal peel at 550 °C (CKP-550) as compared to using calcined kachkal trunk at 550 °C (CKT-550) (91.04 ± 2.06 % in 87 ± 15.39 min) under optimum conditions of 9:1 methanol to oil molar ratio (MOMR), 9 wt% catalyst dosage and 65 °C operating temperature. The reusability of CKP-550 was studied up to 3rd cycle achieving 81.57 ± 2.15 % biodiesel yield. The characteristic studies revealed the attendance of K as the main element (24.80 wt%) existing as carbonates and oxides in the catalyst. The analysis suggested the characteristics of mesoporous substances in the nanocatalyst (5.68 ± 1.43 nm). The turnover frequency (TOF) and basicity of CKP-550 were 36.86 h⁻¹ and 0.47 mmol g⁻¹, respectively. Investigations into the kinetic and thermodynamics of JPOME synthesis reactions catalyzed by CKP-550 indicated that these processes are endothermic and non-spontaneous. The activation energy (E_a) was quantified to be 41.705 kJ mol⁻¹ and the reaction followed pseudo-first-order kinetics. In brief, waste banana (Musa ABB) peel is a viable, sustainable, and cost-effective catalyst for biodiesel synthesis from non-edible oil blends, offering a novel solution for mitigating air pollution from diesel vehicles.

{"title":"Musa ABB (Kachkal) banana waste derived heterogeneous nanocatalyst for transesterification of binary oil mixture of Jatropha curcas and Pongamia pinnata to biodiesel","authors":"Siri Fung Basumatary , Bipul Das , Sujata Brahma , Sanjay Basumatary","doi":"10.1016/j.biteb.2024.102018","DOIUrl":"10.1016/j.biteb.2024.102018","url":null,"abstract":"<div><div>In this study, a post-harvest plant of <em>Musa</em> ABB, commonly known as ‘Kachkal’ was explored to prepare a catalyst and applied for jatropha pongamia oil methyl esters (JPOME) synthesis from <em>Jatropha curcas</em> and <em>Pongamia pinnata</em> oils blended in a 1:1 ratio. The peel and trunk of the plant were burnt to ashes and calcined at 550 °C for 1 h to achieve the desired catalysts. Sophisticated analytical approaches such as FESEM-EDX, XRD, FT-IR, BET, XPS, HRTEM, and TGA were implemented to characterize the prepared catalysts. The maximum biodiesel (JPOME) yield of 96.34 ± 1.30 % was secured in 10 ± 2 min by using calcined kachkal peel at 550 °C (CKP-550) as compared to using calcined kachkal trunk at 550 °C (CKT-550) (91.04 ± 2.06 % in 87 ± 15.39 min) under optimum conditions of 9:1 methanol to oil molar ratio (MOMR), 9 wt% catalyst dosage and 65 °C operating temperature. The reusability of CKP-550 was studied up to 3rd cycle achieving 81.57 ± 2.15 % biodiesel yield. The characteristic studies revealed the attendance of K as the main element (24.80 wt%) existing as carbonates and oxides in the catalyst. The analysis suggested the characteristics of mesoporous substances in the nanocatalyst (5.68 ± 1.43 nm). The turnover frequency (TOF) and basicity of CKP-550 were 36.86 h<sup>−1</sup> and 0.47 mmol g<sup>−1</sup>, respectively. Investigations into the kinetic and thermodynamics of JPOME synthesis reactions catalyzed by CKP-550 indicated that these processes are endothermic and non-spontaneous. The activation energy (E<sub>a</sub>) was quantified to be 41.705 kJ mol<sup>−1</sup> and the reaction followed pseudo-first-order kinetics. In brief, waste banana (<em>Musa</em> ABB) peel is a viable, sustainable, and cost-effective catalyst for biodiesel synthesis from non-edible oil blends, offering a novel solution for mitigating air pollution from diesel vehicles.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102018"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143142761","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

Combustion global kinetic analysis of a hydrochar obtained from grape pomace

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102038

Alexander C. Resentera , Néstor Tancredi , Carmina Reyes Plascencia

This research explores the hydrochar production from grape pomace via hydrothermal carbonization and the determination of the kinetic parameters of its combustion process. The hydrochar was obtained by hydrothermal carbonization at 220 °C for 240 min with self-generated pressure. The process indicated a mass yield of 65.21 %, and the hydrochar exhibited an HHV of 26.60 MJ/kg, showing its potential as an efficient biofuel. Thermokinetic analysis of hydrochar combustion was conducted using multiple complementary methods: isoconversional analysis, mathematical deconvolution, combined kinetic analysis of each step, and optimization of parameters through nonlinear regression. The findings indicate that the overall process starts at ~152 °C and involves three apparent overlapping steps. The apparent activation energies were 165, 122.9, and 185.6 kJ/mol, while the apparent

ln (A / s^{- 1})

were 29.1, 15.4, and 26.81, respectively. The apparent kinetic models suggest a gamma distribution of frequency factors for volatile loss in step 1, a diffusion-controlled in step 2, and a final step for the combustion of fixed carbon through a type-geometry contraction in step 3. Finally, the obtained kinetic model allowed successful predictions of thermal programs outside the analysis range under non-isothermal and isothermal conditions.

{"title":"Combustion global kinetic analysis of a hydrochar obtained from grape pomace","authors":"Alexander C. Resentera , Néstor Tancredi , Carmina Reyes Plascencia","doi":"10.1016/j.biteb.2025.102038","DOIUrl":"10.1016/j.biteb.2025.102038","url":null,"abstract":"<div><div>This research explores the hydrochar production from grape pomace via hydrothermal carbonization and the determination of the kinetic parameters of its combustion process. The hydrochar was obtained by hydrothermal carbonization at 220 °C for 240 min with self-generated pressure. The process indicated a mass yield of 65.21 %, and the hydrochar exhibited an HHV of 26.60 MJ/kg, showing its potential as an efficient biofuel. Thermokinetic analysis of hydrochar combustion was conducted using multiple complementary methods: isoconversional analysis, mathematical deconvolution, combined kinetic analysis of each step, and optimization of parameters through nonlinear regression. The findings indicate that the overall process starts at ~152 °C and involves three apparent overlapping steps. The apparent activation energies were 165, 122.9, and 185.6 kJ/mol, while the apparent <span><math><mo>ln</mo><mfenced><mrow><mi>A</mi><mo>/</mo><msup><mi>s</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></mfenced></math></span> were 29.1, 15.4, and 26.81, respectively. The apparent kinetic models suggest a gamma distribution of frequency factors for volatile loss in step 1, a diffusion-controlled in step 2, and a final step for the combustion of fixed carbon through a type-geometry contraction in step 3. Finally, the obtained kinetic model allowed successful predictions of thermal programs outside the analysis range under non-isothermal and isothermal conditions.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102038"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141918","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

Lipase production by solid-state fermentation on distiller's dried grain with solubles in a biorefinery approach: Optimization and techno-economic analysis

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2024.102015

Daniele Saluti Nunes de Barros , Vanessa Alves Lima Rocha , Camilla Pires de Souza , Rui de Paula Vieira de Castro , Manuela Moore Cardoso , Gabriela Coelho Brêda , Érika Cristina Gonçalves Aguieiras , Denise Maria Guimarães Freire

This work proposes a biorefinery process from the corn ethanol industry to produce a low-cost dry-fermented solid biocatalyst and enzymatic biodiesel. The fermentation conditions (temperature, moisture, and spore concentration) were optimized through a design experiment. In the best conditions (27 °C, 65 % moisture content, and 1.00 × 10⁷ spores from Rhizopus oryzae/g of solid), it was possible to obtain 80 % conversion of oleic acid and ethanol to ester in 24 h of reaction. A solid pre-inoculum strategy was used to scale up the biocatalyst production by 100 times. The simulation in three different scenarios and its techno-economic analysis – made using the software SuperPro Designer – answered questions related to the feasibility of the biocatalyst production. In the best scenario, the unitary production cost was US$ 3.47/kg. Selling this product for US$ 7.30/kg would represent more than 100 % profit and a payback time of 1.46 years.

{"title":"Lipase production by solid-state fermentation on distiller's dried grain with solubles in a biorefinery approach: Optimization and techno-economic analysis","authors":"Daniele Saluti Nunes de Barros , Vanessa Alves Lima Rocha , Camilla Pires de Souza , Rui de Paula Vieira de Castro , Manuela Moore Cardoso , Gabriela Coelho Brêda , Érika Cristina Gonçalves Aguieiras , Denise Maria Guimarães Freire","doi":"10.1016/j.biteb.2024.102015","DOIUrl":"10.1016/j.biteb.2024.102015","url":null,"abstract":"<div><div>This work proposes a biorefinery process from the corn ethanol industry to produce a low-cost dry-fermented solid biocatalyst and enzymatic biodiesel. The fermentation conditions (temperature, moisture, and spore concentration) were optimized through a design experiment. In the best conditions (27 °C, 65 % moisture content, and 1.00 × 10<sup>7</sup> spores from <em>Rhizopus oryzae</em>/g of solid), it was possible to obtain 80 % conversion of oleic acid and ethanol to ester in 24 h of reaction. A solid pre-inoculum strategy was used to scale up the biocatalyst production by 100 times. The simulation in three different scenarios and its techno-economic analysis – made using the software SuperPro Designer – answered questions related to the feasibility of the biocatalyst production. In the best scenario, the unitary production cost was US$ 3.47/kg. Selling this product for US$ 7.30/kg would represent more than 100 % profit and a payback time of 1.46 years.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102015"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143142759","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

Paper waste-derived functionalized biochar catalyst for production of biodiesel using Jatropha curcas oil feedstock

Q1 Environmental Science

Bioresource Technology Reports

Pub Date : 2025-02-01 DOI: 10.1016/j.biteb.2025.102031

Supongsenla Ao , Prakhar Dwivedi , Arpita Paul Chowdhury , Samuel Lallianrawna , Amarajothi Dhakshinamoorthy , Samuel Lalthazuala Rokhum

In this investigation, we engineered a biochar catalyst by functionalization with 4-benzenediazonium sulfonate, from biomass for potential use in sustainable biodiesel production. The study examined how different ZnCl₂ impregnation ratios affected the catalyst's surface area and catalytic efficiency through BET surface analyzer. The optimal ratio of 1:2 biomass to ZnCl₂ resulted in superior surface characteristics, with a maximum surface area of 540 m² g⁻¹. Under optimized conditions (1:20 JCO:MeOH molar ratio, 8 wt% catalyst loading, 100 °C temperature, 60 min reaction time), an impressive 94.2 ± 0.2 % biodiesel yield was achieved with a low activation energy of 40.427 kJ mol⁻¹. The catalyst demonstrated high reusability over six cycles, with a modest activity loss (87.1 ± 0.2 % yield in the sixth round) due to active site leaching, as established by EDS data. Finally, the study makes future recommendations based on the observed gaps in the literature using unique bibliometric analysis.

{"title":"Paper waste-derived functionalized biochar catalyst for production of biodiesel using Jatropha curcas oil feedstock","authors":"Supongsenla Ao , Prakhar Dwivedi , Arpita Paul Chowdhury , Samuel Lallianrawna , Amarajothi Dhakshinamoorthy , Samuel Lalthazuala Rokhum","doi":"10.1016/j.biteb.2025.102031","DOIUrl":"10.1016/j.biteb.2025.102031","url":null,"abstract":"<div><div>In this investigation, we engineered a biochar catalyst by functionalization with 4-benzenediazonium sulfonate, from biomass for potential use in sustainable biodiesel production. The study examined how different ZnCl<sub>2</sub> impregnation ratios affected the catalyst's surface area and catalytic efficiency through BET surface analyzer. The optimal ratio of 1:2 biomass to ZnCl<sub>2</sub> resulted in superior surface characteristics, with a maximum surface area of 540 m<sup>2</sup> g<sup>−1</sup>. Under optimized conditions (1:20 JCO:MeOH molar ratio, 8 wt% catalyst loading, 100 °C temperature, 60 min reaction time), an impressive 94.2 ± 0.2 % biodiesel yield was achieved with a low activation energy of 40.427 kJ mol<sup>−1</sup>. The catalyst demonstrated high reusability over six cycles, with a modest activity loss (87.1 ± 0.2 % yield in the sixth round) due to active site leaching, as established by EDS data. Finally, the study makes future recommendations based on the observed gaps in the literature using unique bibliometric analysis.</div></div>","PeriodicalId":8947,"journal":{"name":"Bioresource Technology Reports","volume":"29 ","pages":"Article 102031"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141869","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

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