Biomass Conversion and Biorefinery最新文献

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Spent yeast reuse as inoculum: a strategy to boost cellulosic ethanol productivity 废酵母再利用作为接种物:一种提高纤维素乙醇产量的策略
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-11-11 DOI: 10.1007/s13399-024-06309-3
Mariana S. T. Amândio, Manuel J. A. Gonçalves, Luísa S. Serafim, Jorge M. S. Rocha, Ana M. R. B. Xavier
{"title":"Spent yeast reuse as inoculum: a strategy to boost cellulosic ethanol productivity","authors":"Mariana S. T. Amândio,&nbsp;Manuel J. A. Gonçalves,&nbsp;Luísa S. Serafim,&nbsp;Jorge M. S. Rocha,&nbsp;Ana M. R. B. Xavier","doi":"10.1007/s13399-024-06309-3","DOIUrl":"10.1007/s13399-024-06309-3","url":null,"abstract":"<div><p>For the implementation of an integrated biorefinery into a pulping mill, the valorization of bark through cellulosic ethanol production and simultaneously the valorization of the residual yeast from each fermentation run should be considered to increase sustainability and pulp and paper profitability. Spent yeast recycling during cellulosic ethanol production is an opportunity to reduce waste according to environmental issues for disposal at the industrial level, boosting the circular economy. This work evaluated the reuse of spent yeast in successive fermentation experiments at Erlenmeyer and bioreactor scales for cellulosic ethanol from <i>Eucalyptus globulus</i> bark. The spent yeast recovered through centrifugation at the end of each experiment was used as inoculum for subsequent batch fermentation. Across five sequential fermentations, wherein only a fraction of spent yeast was recycled, a discernible decline in ethanol volumetric productivity was observed throughout successive fermentation cycles. Conversely, employing the complete spent yeast for recycling along 11 consecutive trials resulted in a notable enhancement of ethanol productivity, as evidenced by a reduction in fermentation duration to approximately one-third remaining the conversion efficiency above 70%. Four successive experimental trials were conducted at the bioreactor scale, resulting in volumetric productivities ranging from 2.00 to 5.83 g L<sup>−1</sup> h<sup>−1</sup>. The reuse of spent yeast in consecutive fermentation cycles demonstrably augmented productivity, thereby validating a promising strategy for the industrial-scale production of cellulosic ethanol. This significantly contributes to advances in the circular economy principles within the overarching framework of biorefinery operations.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15291 - 15303"},"PeriodicalIF":3.5,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13399-024-06309-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reversing the tide of trouble: harnessing invasive water hyacinth biochar to mitigate groundwater fluoride contamination 扭转麻烦的趋势:利用侵入性水葫芦生物炭来减轻地下水氟化物污染
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-11-09 DOI: 10.1007/s13399-024-06310-w
Rupsha Nandi, Sandip Mondal, Satya Sundar Bhattacharya, Panchanan Sahoo, Jajati Mandal, Pradip Bhattacharyya
{"title":"Reversing the tide of trouble: harnessing invasive water hyacinth biochar to mitigate groundwater fluoride contamination","authors":"Rupsha Nandi,&nbsp;Sandip Mondal,&nbsp;Satya Sundar Bhattacharya,&nbsp;Panchanan Sahoo,&nbsp;Jajati Mandal,&nbsp;Pradip Bhattacharyya","doi":"10.1007/s13399-024-06310-w","DOIUrl":"10.1007/s13399-024-06310-w","url":null,"abstract":"<div><p>Fluoride, a geogenic contaminant, has gained significant global attention due to its adverse health effects. Currently available technologies for its removal are often expensive and inaccessible to many communities. Biochar, a cost-efficient and sustainable adsorbent with proven pollutant removal capabilities, offers a promising alternative. This investigation explores the adsorption capacity of exfoliated biochar (EB) derived from water hyacinth (<i>Pontederia crassipes</i>). Batch adsorption experiments were conducted to analyze the effects of contact time, initial fluoride concentration, biochar dose, reaction temperature and pH. Response surface methodology identified the optimized reaction condition (pH 6, 30 °C, 20 mg L<sup>−1</sup> initial F<sup>−</sup> concentration and 6.5 g L<sup>−1</sup> EB dose) which resulted in 86.08% removal when replicated in the laboratory. Adsorption kinetics followed a pseudo-second-order model (<i>R</i><sup>2</sup> = 0.997), while the Langmuir isotherm (<i>R</i><sup>2</sup> = 0.995) best-explained monolayer adsorption and chemisorption, with a maximum adsorption capacity of 4.24 mg g<sup>−1</sup>. Brunauer-Emmet-Teller and Barett-Joyner-Halendar analysis supported the exfoliation of native biochar using 2(M) HNO<sub>3</sub>, by showing an increase in pore volume (0.037 cc g<sup>−1</sup>) and surface area of EB (22.291 m<sup>2</sup> g<sup>−1</sup>). Field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy analysis confirmed the presence of F<sup>−</sup> in EB. Additionally, Fourier transform infrared spectroscopy highlighted shifts in functional groups, confirming fluoride interaction with biochar. These findings establish biochar as a viable, eco-friendly solution for groundwater fluoride remediation.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15225 - 15239"},"PeriodicalIF":3.5,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in electromagnetic radiation-assisted pretreatment of lignocellulosic biomass as a green method: a review 电磁辐射辅助预处理木质纤维素生物质的绿色方法研究进展
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-11-07 DOI: 10.1007/s13399-024-06301-x
Gashaw Muluken Tessera, Nigus Gabbiye Habtu, Metadel Kassahune Abera, Fantahun Woldesenbet Misganaw
{"title":"Advances in electromagnetic radiation-assisted pretreatment of lignocellulosic biomass as a green method: a review","authors":"Gashaw Muluken Tessera,&nbsp;Nigus Gabbiye Habtu,&nbsp;Metadel Kassahune Abera,&nbsp;Fantahun Woldesenbet Misganaw","doi":"10.1007/s13399-024-06301-x","DOIUrl":"10.1007/s13399-024-06301-x","url":null,"abstract":"<div><p>The use of lignocellulosic biomass as a sustainable source for bio-based products has gained significant attention in recent years. However, the recalcitrant nature of lignocellulose biomass poses challenges in its conversion to valuable products. Pretreatment methods have been developed to enhance the accessibility of cellulose and hemicellulose, thereby improving the enzymatic hydrolysis efficiency. Pretreatment of lignocellulosic biomass can be done using various physical, chemical, biological, and combinations of these methods. Electromagnetic radiation (EMR) is one of the physical pretreatment methods, which includes microwave radiation, gamma radiation, and electron beam radiation. The purpose of this review is to explore the recent scientific discoveries and advancements, potential uses, challenges in scaling up, and the outlook for using EMR as a pretreatment method in valorizing lignocellulosic biomass. It offers several advantages, such as minimizing energy consumption, shorter processing times, ease of operation, improving selectivity, sustainability, and eco-friendliness. A brief discussion was made about the effects of EMR on lignocellulosic biomass based on the literature. This included changes in structure, lignin degradation, cellulose crystallinity, and hemicellulose solubilization. Furthermore, we highlight the influence of process parameters such as radiation power, radiation dose rate, liquid-to-solid ratio, frequency, and contact time on pretreatment efficiency. The evaluation also provides an overview of the challenges and future perspectives of the EMR method. Furthermore, environmental sustainability as a green technology is addressed, including the potential of noxious chemical reduction and waste generation minimization.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 9","pages":"13165 - 13189"},"PeriodicalIF":3.5,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of biosorption of industrial dyes into Luffa cylindrica functionalized with quaternary ammonium salts 季铵盐功能化丝瓜吸附工业染料的优化研究
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-11-06 DOI: 10.1007/s13399-024-06290-x
Sarra Bouzaabia, Ridha Touati, Aida Kesraoui
{"title":"Optimization of biosorption of industrial dyes into Luffa cylindrica functionalized with quaternary ammonium salts","authors":"Sarra Bouzaabia,&nbsp;Ridha Touati,&nbsp;Aida Kesraoui","doi":"10.1007/s13399-024-06290-x","DOIUrl":"10.1007/s13399-024-06290-x","url":null,"abstract":"<div><p>This study presents an innovative eco-friendly approach to enhance the dye removal efficiency of <i>Luffa cylindrica</i> (LC) for industrial wastewater treatment. LC was modified with hexadecyltrimethylammonium bromide (CTAB), a cationic surfactant, to improve its performance in removing negatively charged dyes such as Methyl Orange (MO) and Indigo Carmine (IC). Various concentrations of CTAB (0.1 g, 0.5 g, 1 g, and 1.5 g) were used to modify LC, resulting in enhanced electrostatic interactions with the dyes. Characterization through Boehm titration, determination of the point of zero charge (pHpzc), infrared spectroscopy (IR), scanning electron microscopy (SEM), and Energy Dispersive X-ray Spectroscopy (EDX) confirmed the successful modification of the material. Biosorption experiments showed that with 0.5 g of CTAB and a dye concentration of 150 mg/L, the biosorption capacity increased significantly: IC from 11.394 mg/g to 21.155 mg/g and MO from 7.41 mg/g to 17.651 mg/g. The optimal pH for biosorption was found to be 2. CTAB-modified LC with 1.5 g demonstrated high retention rates, achieving 99.98% for MO and 98.33% for IC when tested individually. Under competitive dye conditions, the retention rates were 97.00% for MO and 99.97% for IC. Kinetic modeling revealed that the Brouers-Sotolongo (BS) model best described the biosorption process. This research provides a promising method for enhancing dye removal in mixed effluents, offering a viable solution for the textile industry’s wastewater treatment challenges.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"14953 - 14974"},"PeriodicalIF":3.5,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of fermentations using Aspergillus spp. towards extraction yield and bioactivity of coffee pulp extract 曲霉发酵对咖啡果肉提取物提取率和生物活性的影响
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-11-05 DOI: 10.1007/s13399-024-06274-x
Muhammad Yusuf Abduh, Graciella Merari, Mochammad Daffa Angkasa, Wening Indrya Reno Pangastuti, Anasya Rahmawati, Intan Taufik, Marselina Irasonia Tan, Mia Rosmiati
{"title":"Effects of fermentations using Aspergillus spp. towards extraction yield and bioactivity of coffee pulp extract","authors":"Muhammad Yusuf Abduh,&nbsp;Graciella Merari,&nbsp;Mochammad Daffa Angkasa,&nbsp;Wening Indrya Reno Pangastuti,&nbsp;Anasya Rahmawati,&nbsp;Intan Taufik,&nbsp;Marselina Irasonia Tan,&nbsp;Mia Rosmiati","doi":"10.1007/s13399-024-06274-x","DOIUrl":"10.1007/s13399-024-06274-x","url":null,"abstract":"<div><p>Coffee pulp contains a considerable number of phenolic compounds such as chlorogenic acid and ferulic acid that can be extracted with the help of biological agents to produce bioactive phenolic compounds. This study investigated the impact of solid-state fermentation of coffee pulp using <i>Aspergillus </i>spp. The research focused on evaluating the effects of fermentation on the yield of coffee pulp extract, as well as its total phenolic content, antioxidant activity, and anti-inflammatory activity. Fermentation was carried out at room temperature (<span>(27^circ{rm C})</span>) for 7 d using <i>Aspergillus niger</i>, <i>Aspergillus oryzae</i>, and mixed cultures of <i>A. niger</i> and <i>A. oryzae</i> to enhance the yield and bioactivities of the coffee pulp extract. Biomass dry weight and substrate consumption were monitored daily, followed by extraction of the fermented coffee pulp. The yield, total phenolic content, antioxidant activity, and anti-inflammatory activity of the extract were also determined. The growth of <i>A. niger</i> cultures was found to be optimum on the 5th day of fermentation while <i>A. oryzae</i> and mixed cultures were optimal on the 4th day of fermentation. Fermentation of coffee pulp with <i>Aspergillus </i> spp. effectively increased the extract yield (6.2–8.8%) and total phenolic content (59.9–64.4 mg GAE g<sup>-1</sup>) up to 83% and 111% as compared to the control (unfermented coffee pulp). The fermentation also enhanced the antioxidant and anti-inflammatory activity of the coffee pulp extract with the <span>({text{IC}}_{50})</span> (half of the maximal inhibitory concentration) decreased up to 69% and 51%, respectively. Statistically, the total phenolic content in the extract had a significant negative effect on the IC<sub>50</sub> values of the antioxidant activity and anti-inflammatory activity of the fermented samples. This indicates that the higher the total phenolic content, the stronger the antioxidant activity and anti-inflammatory activity of the extract. The findings suggest that the coffee pulp can be utilized as an alternative source of phenolic compounds with good bioactivity.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15087 - 15099"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical simulation of a reactor for heterogeneous pyrolysis of hydrocarbon gases over biochar granules 生物炭颗粒上烃类气体非均相热解反应器的数值模拟
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-11-01 DOI: 10.1007/s13399-024-06253-2
L. B. Director, V. A. Sinelshchikov
{"title":"Numerical simulation of a reactor for heterogeneous pyrolysis of hydrocarbon gases over biochar granules","authors":"L. B. Director,&nbsp;V. A. Sinelshchikov","doi":"10.1007/s13399-024-06253-2","DOIUrl":"10.1007/s13399-024-06253-2","url":null,"abstract":"<div><p>A mathematical model of a high-temperature reactor for the pyrolysis of hydrocarbon gases during filtration through a porous carbon medium formed by carbonized wood granules is presented. A system of nonstationary differential equations describing reactor operation in cyclic mode was numerically solved. Methane and a mixture (methane, ethane, propane, butane, and nitrogen) resembling associated petroleum gas were used as feed hydrocarbon gases. The dependencies of pyrocarbon and hydrogen yields, the degree of hydrocarbon gas conversion, and gas mixture compositions at the reactor outlet on the specific mass flow rate of the feed gas were calculated. The influence of the reactor radius on the density inhomogeneity of the resulting carbon–carbon composite, pyrocarbon, and hydrogen productivities of the reactor was considered. It is shown that the dependence of the reactor productivity for both pyrocarbon and hydrogen on the methane mass flow rate has an optimum and, in the case of APG, grows in the whole considered range of the raw gas flow rate variation. The increase of the reactor radius leads to a decrease of its specific productivity (per unit cross section of the reactor) and a deterioration of the quality of the obtained composite, which is expressed in an increase of the variation of its density. For production of gas mixtures with high hydrogen content, it is necessary to use modes with low mass flow rate of raw gas. The obtained regularities allow to choose optimal technological parameters depending on the target product — carbon composite or hydrogen-enriched gas mixtures.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15069 - 15085"},"PeriodicalIF":3.5,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biochemical and cytological studies of Typha domingensis used for bioethanol production 用于生物乙醇生产的叶霉的生化和细胞学研究
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-10-30 DOI: 10.1007/s13399-024-06229-2
Rehab M. Hafez, Tahany M. A. Abdel-Rahman, M. Mokhtar Yahia, Khadiga I. M. El-Gabry, Yosra M. M. Abdel Wahab
{"title":"Biochemical and cytological studies of Typha domingensis used for bioethanol production","authors":"Rehab M. Hafez,&nbsp;Tahany M. A. Abdel-Rahman,&nbsp;M. Mokhtar Yahia,&nbsp;Khadiga I. M. El-Gabry,&nbsp;Yosra M. M. Abdel Wahab","doi":"10.1007/s13399-024-06229-2","DOIUrl":"10.1007/s13399-024-06229-2","url":null,"abstract":"<div><p><i>Typha domingensis</i> (cattails) is an emergent invasive aquatic macrophyte; it belongs to Typhaceae family inhabiting multiple Egyptian water bodies like rivers, lakes, and wetlands. Due to the scarcity of food, the depletion of fossil fuels, population growth, and increased industrial development, sustainable renewable bioenergy production has gained a lot of attention lately. Typha is an excellent lignocellulosic biomass for biofuel production because it does not compete with food but rather endangers aquatic life and prevents water from flowing through drainage channels and canals, which rises evapotranspiration. Although it is beneficial in phytoremediation, its removal is a necessity due to previous reasons. Chemical pretreatment has been widely used to degrade complex chains of lignocellulosic materials. Enzymatic hydrolysis is used to enhance fermentable sugars production from cellulose. Fermentation process has been conducted by yeast for centuries. <i>Saccharomyces cerevisiae</i> tolerance to ethanol can be increased by mutation; it is induced either chemically, physically, or biologically. Geneticists frequently utilize gamma radiation, one of the physical mutagenesis mechanisms, to change the DNA of microorganisms. Scanning electron microscope (SEM) is concerned with examination and analysis of microstructure morphology and chemical composition. Changes in internal organelles of <i>Saccharomyces cerevisiae</i> after mutation has been tracked using transmission electron microscope (TEM) in order to distinguish between native and mutant yeast and to examine their ultrastructural changes.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15361 - 15384"},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13399-024-06229-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of substrate dilution ratios (SDRs) on biogas and bioslurry production from anaerobic digestion of pig faeces under field conditions 底物稀释比(drs)对猪粪厌氧消化产沼气和生物浆的影响
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-10-29 DOI: 10.1007/s13399-024-06278-7
Seema Yadav,  Chandrahas, Rajneesh Thakur, Amandeep Singh, Arun Somagond, S. K. Dubey
{"title":"Effect of substrate dilution ratios (SDRs) on biogas and bioslurry production from anaerobic digestion of pig faeces under field conditions","authors":"Seema Yadav,&nbsp; Chandrahas,&nbsp;Rajneesh Thakur,&nbsp;Amandeep Singh,&nbsp;Arun Somagond,&nbsp;S. K. Dubey","doi":"10.1007/s13399-024-06278-7","DOIUrl":"10.1007/s13399-024-06278-7","url":null,"abstract":"<div><p>Anaerobic digestion is considered the most efficient method for production of renewable energy (biogas) from different categories of biomass such as excreta of livestock including piggery. However, biogas production from pig faeces is very low and inefficient. Therefore, the present study was conducted to maximise biogas production and to explore the bioslurry (digestate) utilisation as a natural fertiliser by investigating the potential of different substrate dilution ratios (SDRs) (hence different organic loading rates, gVS/L) of pig faeces: water, i.e. 1:8 (9.29, T<sub>0</sub>), 1:6 (12.36, T<sub>1</sub>), 1:4 (18.50, T<sub>2</sub>), and 1:2 (37.17, T<sub>3</sub>) under field conditions for its easy out scaling. Different parameters, i.e. quantity, quality, VS reduction, hydraulic retention time (HRT), calorific value, manurial value and germination potential of digestate, were studied. The current investigation revealed that biogas production was increased by decreasing the SDR, and the highest (<i>P</i> &lt; 0.01) biogas production (0.05 m<sup>3</sup>/kg fresh faeces) as well as the steepest VS reduction (21%) was achieved by 1:2 SDR as compared to others. The results of the digestate germination trial showed that relative seed germination in the crude slurry was significantly greater (<i>P</i> &lt; 0.01) with increased SDR. From the results, it is recommended that SDR of 1:2 (TS nearly 7.4%) may be used to produce 1 m<sup>3</sup> of biogas from 20 kg of pig faeces (TS nearly 22%) for enhanced biogas production, and digestate obtained as a by-product can enhance the soil fertility in diluted form.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"14991 - 15005"},"PeriodicalIF":3.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pyrolysis of macroalgae biomass from Nitella hyalina and its thermokinetics 透明Nitella hyalina大型藻类生物质的热解及其热力学研究
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-10-28 DOI: 10.1007/s13399-024-06242-5
Arshad Iqbal, Muhammad Imran, José Luiz Francisco Alves, Fazal Hadi, Zhitong Yao, Jean Constantino Gomes da Silva, Syed Lal Badshah
{"title":"Pyrolysis of macroalgae biomass from Nitella hyalina and its thermokinetics","authors":"Arshad Iqbal,&nbsp;Muhammad Imran,&nbsp;José Luiz Francisco Alves,&nbsp;Fazal Hadi,&nbsp;Zhitong Yao,&nbsp;Jean Constantino Gomes da Silva,&nbsp;Syed Lal Badshah","doi":"10.1007/s13399-024-06242-5","DOIUrl":"10.1007/s13399-024-06242-5","url":null,"abstract":"<div><p>In the context of the developing circular economy, algae biomass emerges as a promising and renewable source of bioenergy. Algae play a vital role in our marine environment and hold great potential for the production of biomaterials and bioenergy. This study explores the bioenergy potential of macroalgae <i>Nitella hyalina</i> through thermogravimetric analysis (TGA), utilizing slow heating rates of 5, 10, and 20 °C min<sup>−1</sup>, ranging from room temperature to 800 °C. The pyrolysis of biomass can be divided into four distinct zones based on molecular transformation. To comprehensively examine the kinetics and mechanisms of thermal decomposition, a stepwise approach based on master plots and iso-conversional methodologies was employed. The TGA/DTG analysis revealed three distinct pyrolysis peaks, with the highest pyrolysis rates occurring at temperatures between 230–250 and 650–735 °C. The activation energy, computed using iso-conversional methods, ranged from 172.80 to 362.13 kJ mol<sup>–1</sup>. Thermodynamic investigations of the <i>Nitella</i> biomass indicated an enthalpy in the range of 186.93 ± 0.16 to 363.29 ± 0.34 kJ mol<sup>–1</sup>, and Gibbs free energy values ranging from 145.84 ± 1.57 to 278.18 ± 3.86 kJ mol<sup>−1</sup>. These values indicated a suitable bioenergy production from biomass valorization of macroalgae biomass. Additionally, the change in entropy (∆S) values fell within the range of − 51.34 ± 0.39 to 93.85 ± 0.38 J.mol<sup>−1</sup> K<sup>-1</sup>, showing a positive disorder of the decomposed molecules. This study demonstrates that macroalgae biomass holds significant potential as a sustainable source for bioenergy production.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15211 - 15223"},"PeriodicalIF":3.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Special Issue: Biomass for Energy and Value-added Products – Technological Progress 2022 特刊:生物质能源和增值产品--2022 年的技术进步
IF 3.5 4区 工程技术
Biomass Conversion and Biorefinery Pub Date : 2024-10-25 DOI: 10.1007/s13399-024-06110-2
Sangeeta Negi
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