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High Xylanase and Low Cellulase Producing Bacteria as a Whole Cell Biocatalyst for Eco-Friendly Surface Modification of Banana Pseudostem Fibers 高木聚糖酶和低纤维素酶产生细菌作为全细胞生物催化剂对香蕉假茎纤维进行生态友好的表面改性
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-08-11 DOI: 10.1007/s12155-024-10793-w
Ajinath Dukare, Krishna Prasad, G. T. Senthilkumar, Kirti Jalgaonkar, Sujata Saxena
{"title":"High Xylanase and Low Cellulase Producing Bacteria as a Whole Cell Biocatalyst for Eco-Friendly Surface Modification of Banana Pseudostem Fibers","authors":"Ajinath Dukare,&nbsp;Krishna Prasad,&nbsp;G. T. Senthilkumar,&nbsp;Kirti Jalgaonkar,&nbsp;Sujata Saxena","doi":"10.1007/s12155-024-10793-w","DOIUrl":"10.1007/s12155-024-10793-w","url":null,"abstract":"<div><p>The study aimed to assess the efficiency of higher xylanase and lower cellulase-producing bacteria as a whole-cell biocatalyst for surface modification of banana pseudostem fibers in an eco-friendly and cost-effective manner. The ability of bacterial biocatalysts to alter fibers’ surface during fiber-biocatalyst interaction in liquid media was determined by analyzing fibers' chemical composition (cellulose, hemicellulose, and lignin), surface color, thickness, surface morphology, and spectral attributes. Results indicated that the production of xylanase by <i>Bacillus licheniformis</i> (1.23 IU/mg of protein) and <i>Bacillus pumilus</i> (1.29 IU/mg of protein) was almost 15 times more than cellulase produced by them. The content of alpha-cellulose (46.7%), hemicelluloses (21.6%), and lignin (11.7%) was slightly decreased in <i>B. licheniformis</i>-treated BPFs. The surface color (whiteness index) was positively improved, indicating color changes (<i>ΔE</i>) of 6.37 and 8.28 for <i>B. pumilus</i> and <i>B. licheniformis-</i>treated fibers, respectively. The thickness of fibers pretreated with <i>B. lichenifiormis</i> (160.75 ± 22.43 mm) and <i>B. pumilus</i> (202.655 ± 24.83) was reduced by 31.90 and 14.14%, respectively. Scanning electron micrograph studies revealed the increased roughness and grooves on the biocatalysts-treated fiber surface. Spectral analysis confirmed the stretching and deformation of inter and intra-molecular bonds of components of banana fibers. Briefly, the study highlights the effectiveness of whole-cell bacterial biocatalysts as a greener and cheaper tool for the surface modification of banana pseudostem fibers.\u0000</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2190 - 2199"},"PeriodicalIF":3.1,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141930576","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}
引用次数: 0
Machine Learning–Based Analysis of Sustainable Biochar Production Processes 基于机器学习的可持续生物炭生产过程分析
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-08-10 DOI: 10.1007/s12155-024-10796-7
Ahmet Coşgun, Burcu Oral, M. Erdem Günay, Ramazan Yıldırım
{"title":"Machine Learning–Based Analysis of Sustainable Biochar Production Processes","authors":"Ahmet Coşgun,&nbsp;Burcu Oral,&nbsp;M. Erdem Günay,&nbsp;Ramazan Yıldırım","doi":"10.1007/s12155-024-10796-7","DOIUrl":"10.1007/s12155-024-10796-7","url":null,"abstract":"<div><p>Biochar production from biomass sources is a highly complex, multistep process that depends on several factors, including feedstock composition (e.g., type of biomass, particle size) and operating conditions (e.g., reaction temperature, pressure, residence time). However, the optimal set of variables for producing the maximum amount of biochar with the required characteristics can be determined by using machine learning (ML). In light of this, the purpose of this paper is to examine ML applications in biochar processes for the production of sustainable fuels. First, recent developments in the field are summarized, and then, a detailed review of ML applications in biochar production is presented. Following that, a bibliometric analysis is done to illustrate the major trends and construct a comprehensive perspective for future studies. It is found that biochar yield is the most common target variable for ML applications in biochar production. It is then concluded that ML can help to detect hidden patterns and make accurate predictions for determining the combination of variables that results in the desired properties of biochar which can be later used for decision-making, resource allocation, and fuel production.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2311 - 2327"},"PeriodicalIF":3.1,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141921469","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}
引用次数: 0
Efficient Production of Fermentable Sugars from Common Reed Biomass Through Hydrothermal and Citric Acid Pretreatment Processes 通过水热和柠檬酸预处理工艺从普通芦苇生物质中高效生产发酵糖
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-08-08 DOI: 10.1007/s12155-024-10795-8
Shijie Wang, Xinyan You, Zheng Gui, Jiabin Wang, Shuyang Kang, Jin Cao, Fang Xie, Rongling Yang, Hongzhen Luo
{"title":"Efficient Production of Fermentable Sugars from Common Reed Biomass Through Hydrothermal and Citric Acid Pretreatment Processes","authors":"Shijie Wang,&nbsp;Xinyan You,&nbsp;Zheng Gui,&nbsp;Jiabin Wang,&nbsp;Shuyang Kang,&nbsp;Jin Cao,&nbsp;Fang Xie,&nbsp;Rongling Yang,&nbsp;Hongzhen Luo","doi":"10.1007/s12155-024-10795-8","DOIUrl":"10.1007/s12155-024-10795-8","url":null,"abstract":"<div><p>Production of fermentable sugars from renewable lignocellulosic biomass could provide a sustainable substrate for biofuel production by microbial fermentation. However, the inherent structure of lignocellulose largely hinders enzymatic saccharification efficiency to obtain sugars, thus the development of efficient pretreatment methods to reduce biomass recalcitrance is an important issue. In this study, the effects of two typical processes including hydrothermal (HTP) and citric acid pretreatments (CAP) on the enzymatic hydrolysis yield of reed biomass were investigated. The results indicate that, when performing HTP at 180 °C for 120 min to deconstruct reed, the pretreated biomass led to a higher glucose yield of 87.1% after 72 h enzymatic hydrolysis with cellulase (10 FPU/g substrate). Furthermore, under the pretreatment conditions with 6% (w/v) citric acid, 150 °C, and 60 min, the glucose yield of pretreated reed was 63.4% after hydrolysis with cellulase (10 FPU/g substrate). In this case, adding Tween 80 (100 mg/g substrate) significantly facilitated the enzymatic saccharification activity resulting in the glucose yield of CA-pretreated reed to 84.2%. Compared with the untreated reed, the glucose yield of pretreated residues after HTP and CAP was largely improved by 4.97–5.18 folds which was mainly due to the enhanced crystallinity (50.0–53.2% vs. 45.9%). The total fermentable sugars of 34.7–34.8 g can be produced from 100 g of raw reed biomass based on the proposed HTP and CAP processes. The mechanism of enhanced enzymatic hydrolysis after pretreatments was elucidated through physicochemical characterization techniques. In summary, the proposed pretreatments show high potential application for biorefinery from renewable, abundant reed biomass.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2177 - 2189"},"PeriodicalIF":3.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141929536","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}
引用次数: 0
Waste Palm Leaves-Based Hydrochar Support Catalytic Esterification of Palm Fatty Acid Distillate 废棕榈叶基水碳支持棕榈脂肪酸馏分的催化酯化反应
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-08-02 DOI: 10.1007/s12155-024-10789-6
Muhammad Aliyu, Umer Rashid, Wan Azlina Wan Ab Karim Ghani, Mohamad Amran Mohd Salleh, Balkis Hazmi, Fahad A. Alharthi, Elsa Antunes, Jianglong Yu
{"title":"Waste Palm Leaves-Based Hydrochar Support Catalytic Esterification of Palm Fatty Acid Distillate","authors":"Muhammad Aliyu,&nbsp;Umer Rashid,&nbsp;Wan Azlina Wan Ab Karim Ghani,&nbsp;Mohamad Amran Mohd Salleh,&nbsp;Balkis Hazmi,&nbsp;Fahad A. Alharthi,&nbsp;Elsa Antunes,&nbsp;Jianglong Yu","doi":"10.1007/s12155-024-10789-6","DOIUrl":"10.1007/s12155-024-10789-6","url":null,"abstract":"<div><p>Heterogeneous acid catalysis provides a sustainable and cost-effective replacement to homogeneous catalysts, as it is easily accessible and reusable. In this research, biodiesel was synthesized from palm fatty acid distillate (PFAD) by way of esterification utilizing a heterogeneous acid catalyst composed of CuO/WPLAHC-S, which was derived from waste palm leaves-based hydrochar. The catalyst was characterized using TGA, XRD, FESEM, EDX, BET, FT-IR, Raman, and acid density. The synthesized catalyst was found to have remarkable stability during the thermal test. The BET surface area, pore volume, and pore width of the synthesized catalyst were measured at 118.47 m<sup>2</sup>/g, 0.05 cm<sup>3</sup>/g, and 8.15 nm, respectively. The significant acidity density (18.57 mmol/g) facilitated the simultaneous esterification process. The investigation found that the copper-doped activated hydrochar, treated with sulfuric acid, exhibited excellent catalytic activity. A high yield of 98.34% fatty acid methyl ester (FAME) was achieved under mild conditions with the use of a catalyst concentration of 2 wt.%, a methanol-to-PFAD molar ratio of 15:1, and a reaction temperature of 80 °C for a duration of 3 h. For statistical analysis, one-way ANOVA was applied to verify the experimental data set for PFAD esterification optimization parameters by predetermining a 95% confidence interval. All of the esterification parameters met the expectation of a <i>p</i>-value less than 0.05 indicating its significant impact on FAME production. The catalyst exhibited excellent performance by maintaining a FAME yield of over 90% after four reaction cycles without requiring reactivation. The study demonstrates the efficacy of CuO/WPLAHC-S as a promising acid catalyst derived from waste palm leaves-based hydrochar for biodiesel production from PFAD.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2413 - 2428"},"PeriodicalIF":3.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141881867","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}
引用次数: 0
Improvising Biodiesel Production from Scenedesmus dimorphus via Nutrient Starvation and Optimized Pretreatment Process 通过营养饥饿和优化预处理工艺提高双孢菇生物柴油产量
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-07-19 DOI: 10.1007/s12155-024-10787-8
P. Muttu Pandian, K. Dharkshith, Perumalsamy Muthiah
{"title":"Improvising Biodiesel Production from Scenedesmus dimorphus via Nutrient Starvation and Optimized Pretreatment Process","authors":"P. Muttu Pandian,&nbsp;K. Dharkshith,&nbsp;Perumalsamy Muthiah","doi":"10.1007/s12155-024-10787-8","DOIUrl":"10.1007/s12155-024-10787-8","url":null,"abstract":"<div><p>Microalgae show great potential as a biodiesel feedstock, primarily attributed to their rapid growth rates and higher lipid content. Biomass pretreatment is a critical step in biodiesel production, as it is essential for providing unsaturated and saturated fatty acids to produce fatty acid methyl ester (FAME). The present study investigates the effect of two-stage cultivation of nutrient starvation and ultrasonic-assisted solvent extraction technique from <i>Scenedesmus dimorphus</i> on lipid content and productivity. Preliminary studies facilitated the identification of an appropriate range to which the variables must be optimized. <i>Scenedesmus dimorphus</i> was obtained from the National Repository for Microalgae and Cyanobacteria [NRMC-F]. The medium optimization resulted in a higher lipid content (38.45%) in the M4N medium under starved conditions. The generated model (<i>R</i><sup>2</sup> = 0.998) forecasted the lipid content of 0.317 g/L after 87.19 min of sonication under the sonication power (65.77 W) with a molar ratio [chloroform:methanol] (1.3:1), which was experimentally validated. Under optimized conditions, the efficiency of extraction has been improved from 64.6 to 72.5% with a maximum biodiesel yield of 25.4 wt.%. In summary, this research successfully identified the optimal growth medium and pretreatment conditions, ultimately maximizing the production of biodiesel.</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":"17 4","pages":"2400 - 2412"},"PeriodicalIF":3.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743830","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}
引用次数: 0
Optimal Bio-Oil Production Using Triplochiton scleroxylon Sawdust Through Microwave-Assisted Pyrolysis 通过微波辅助热解法利用硬木锯屑生产最佳生物油
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-07-18 DOI: 10.1007/s12155-024-10788-7
Kodami Badza, Kom Regonne Raïssa, Tsatsop Tsague Roli Karole, Ze Bilo’o Philemon, Ngassoum Martin Benoit
{"title":"Optimal Bio-Oil Production Using Triplochiton scleroxylon Sawdust Through Microwave-Assisted Pyrolysis","authors":"Kodami Badza,&nbsp;Kom Regonne Raïssa,&nbsp;Tsatsop Tsague Roli Karole,&nbsp;Ze Bilo’o Philemon,&nbsp;Ngassoum Martin Benoit","doi":"10.1007/s12155-024-10788-7","DOIUrl":"10.1007/s12155-024-10788-7","url":null,"abstract":"<div><p>This study aims to optimize bio-oil production through microwave pyrolysis of <i>Triplochiton scleroxylon</i> sawdust (<i>Ayous</i>). After a physicochemical characterization of the sawdust, response surface methodology via centered composite design was used to investigate the influence of pyrolysis factors on bio-oil yield and determine the optimal pyrolysis conditions. The studied pyrolysis factors were microwave power (W), irradiation time (min), and biochar (%) as wave absorber. Finally, the bio-oil produced under optimal conditions was characterized by GC–MS. It emerges from this study that <i>Ayous</i> biomass has physicochemical properties that can be valorized for bio-oil production, with a high volatile matter content (63.2 ± 2%) and low ash content (2.8 ± 0.3%). The optimization study of bio-oil yield shows that all factors have significant effects with a statistical significance level of 5% (<i>p</i> &lt; 0.05) on the measured parameters. The optimal bio-oil yield of 44.82% is obtained at optimal conditions: microwave power of 576 W, irradiation time of 28 min, and a biochar (wave absorber) input of 3.18%. The bio-oil produced under optimal conditions has a pH of 4.6 ± 0.7 and a water content of 25 ± 1.2%. Compound identification of this bio-oil by GC–MS identified families of compounds including alkanes (13.90%), esters (5.88%), alcohols (1.10%), and high molecular weight phenolic compounds (58%). The produced bio-oil can be used as biofuel or in industrial applications. Nevertheless, further processing steps are needed to lower the water content and acidity of the oil.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2362 - 2373"},"PeriodicalIF":3.1,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743824","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}
引用次数: 0
Innovative Approach to Characterize Cheese Whey Anaerobic Digestion Using Combined Mechanistic and Machine Learning Models 利用机理和机器学习相结合的模型表征奶酪乳清厌氧消化的创新方法
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-07-16 DOI: 10.1007/s12155-024-10785-w
Md Tausif Akram, Rameez Ahmad Aftab, Khursheed B. Ansari, Iram Arman, Mohammad Abdul Hakeem, Sadaf Zaidi, Mohammad Danish
{"title":"Innovative Approach to Characterize Cheese Whey Anaerobic Digestion Using Combined Mechanistic and Machine Learning Models","authors":"Md Tausif Akram,&nbsp;Rameez Ahmad Aftab,&nbsp;Khursheed B. Ansari,&nbsp;Iram Arman,&nbsp;Mohammad Abdul Hakeem,&nbsp;Sadaf Zaidi,&nbsp;Mohammad Danish","doi":"10.1007/s12155-024-10785-w","DOIUrl":"10.1007/s12155-024-10785-w","url":null,"abstract":"<div><p>Whey, a cheese production byproduct, can be anaerobically digested to reduce pollution and generate energy. Yet, stability is challenging due to organic content sensitivity and influent fluctuations. The present work attempts to implement the mechanistic model and machine learning (ML) models (support vector regression (SVR) and artificial neural networks (ANNs)) together to predict the concentration dataset of substrate 1 (S<sub>1</sub>) (i.e., carbohydrates and proteins), substrate 2 (S<sub>2</sub>) (i.e., glucids and amino acids), VFA, and methane (CH<sub>4</sub>) as a function of input independent variables, namely time and organic loading rate (OLR). The R<sup>2</sup> values for S<sub>1</sub>, S<sub>2</sub>, VFA, and CH<sub>4</sub> obtained through the mechanistic model remained as 0.953, 0.918, 0.84, and 0.976, respectively; for ANN models, 0.982, 0.928, 0.958, and 0.99; and for SVR models, 0.984, 0.939, 0.938, and 0.999, respectively. ML models have been discovered to be among the most precise and versatile compared to the mechanistic model. Moreover, other performance metrics, such as RMSE (0.022–2.177), MRE (0.007–0.100), and AARE (0.008–0.104) for ANN and RMSE (0.083–1.961), MRE (0.021–0.091), and AARE (0.037–0.089) for SVR, are obtained, indicating good prediction performances for both ML models. SVR and ANN models excel, aligning concentration curves to the optimum line when input parameters are adjusted, unlike the subpar traditional-based mechanistic model. Therefore, ML methods offer a tool to predict anaerobic digestion more effectively, enhancing design and operations.</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":"17 4","pages":"2474 - 2486"},"PeriodicalIF":3.1,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141641764","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}
引用次数: 0
Design, Development, and Optimization of Sustainable Pyrolyzer for Biochar Production from Agricultural Crop Residue 设计、开发和优化利用农作物秸秆生产生物炭的可持续热解器
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-07-15 DOI: 10.1007/s12155-024-10786-9
Maga Ram Patel, Narayan Lal Panwar, Chitranjan Agrawal, Trilok Gupta, Kamalesh Kumar Meena, Sanwal Singh Meena
{"title":"Design, Development, and Optimization of Sustainable Pyrolyzer for Biochar Production from Agricultural Crop Residue","authors":"Maga Ram Patel,&nbsp;Narayan Lal Panwar,&nbsp;Chitranjan Agrawal,&nbsp;Trilok Gupta,&nbsp;Kamalesh Kumar Meena,&nbsp;Sanwal Singh Meena","doi":"10.1007/s12155-024-10786-9","DOIUrl":"10.1007/s12155-024-10786-9","url":null,"abstract":"<div><p>This article presents an energy-efficient biochar kiln that produces biochar from agricultural crop residues. The kiln is designed to be easy to operate and has minimal requirements for special operations. It works by heating biomass in a combustion chamber using recirculated pyrogas. The study optimized the process parameters and economics of producing biochar from wheat straw using Response Surface Methodology (RSM) based on Central Composite Design (CCD). The sustainable pyrolyzer had a thermal efficiency of 43.69%, with steady-state operation at 517.68 ± 98.18 °C. It produced an average of 54.57 ± 1.86 kg of biochar per batch, using 36.96 ± 3.66 kg of subabul (<i>Leucaena leucocephala</i>) as fuel and 179.61 ± 2.87 kg of wheat straw as feedstock. Subabul is chosen as a fuel due to its rapid growth, high calorific value, low moisture content, efficient combustion, and minimal smoke emission. The thermogravimetric index (TGI) and calorific value of WSB were 7.14 and 25.91 ± 0.74 MJ/kg, respectively. The benefit–cost ratio and payback period were 2.27 ± 0.16 and 4.92 ± 0.44 months, respectively.</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2345 - 2361"},"PeriodicalIF":3.1,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647911","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}
引用次数: 0
Study on the Co-pyrolysis Behavior of Copper Slag and Pine Sawdust and the Adsorption of Chromium 铜渣和松木锯屑的共热解行为及对铬的吸附研究
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-07-14 DOI: 10.1007/s12155-024-10781-0
Tianxing Zhou, Wanzhen Zhong, Yujie Shen, Qiuyang Yu, Siyi Luo, Yu Feng, Weiwei Zhang, Dongdong Ren
{"title":"Study on the Co-pyrolysis Behavior of Copper Slag and Pine Sawdust and the Adsorption of Chromium","authors":"Tianxing Zhou,&nbsp;Wanzhen Zhong,&nbsp;Yujie Shen,&nbsp;Qiuyang Yu,&nbsp;Siyi Luo,&nbsp;Yu Feng,&nbsp;Weiwei Zhang,&nbsp;Dongdong Ren","doi":"10.1007/s12155-024-10781-0","DOIUrl":"10.1007/s12155-024-10781-0","url":null,"abstract":"<div><p>The co-pyrolysis behavior of pine sawdust (PS) biochar doped with copper slag (CS) and the adsorption performance of the prepared CS catalyzed composite adsorbent is studied. Thermogravimetric, SEM, and BET are used to analyze the co-pyrolysis characteristics and the adsorption performance of PS and its mixed samples with different ratios of PS and CS. The co-pyrolysis of CS and PS effectively improves the pyrolysis characteristics. Compared with PS pyrolysis alone, with little change in activation energy, the reaction order changed from 1.5 to 0.5. When the mixing ratio PS:CS = 3:1, the pyrolysis release characteristics were the highest; the most favorable for the pyrolysis reaction. The H<sub>3</sub>PO<sub>4</sub>, KOH, and ZnCl<sub>2</sub> used to modify PS biochar improved its adsorption capacity. The results show that the modified PS biochar has a larger specific surface area and provides more adsorption sites, effectively improving the adsorption effect. The adsorption capacity of the PS biochar is inversely proportional to the concentration of the Cr(VI) solution. Under the conditions of modified PS at 1:1 based on H<sub>3</sub>PO<sub>4</sub>, KOH, and ZnCl<sub>2</sub>, the concentration of the Cr(VI) solution is 20 mg, and the adsorption effect is best in an acidic environment with pH = 1. The high value-added utilization of metallurgical solid waste and agricultural waste was realized, namely the governance concept of “treating danger with waste.”</p></div>","PeriodicalId":487,"journal":{"name":"BioEnergy Research","volume":"17 4","pages":"2050 - 2061"},"PeriodicalIF":3.1,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141649753","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}
引用次数: 0
Comparative Assessment of the Environmental and Economic Performance of Two Straw Utilization Pathways in China 中国两种秸秆利用途径的环境和经济绩效比较评估
IF 3.1 3区 工程技术
BioEnergy Research Pub Date : 2024-07-11 DOI: 10.1007/s12155-024-10784-x
Tong Li, Guoxia Wei, Hanqiao Liu, Yuwen Zhu, Yanfei Lin, Qianlong Han
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