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Synthesis of a Plant-based Dust Suppressant and Testing on Coal from Moatize, Mozambique 一种植物基抑尘剂的合成及其在莫桑比克Moatize煤上的试验
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-12-23 DOI: 10.15255/cabeq.2022.2058
V. Campos, L. C. Morais, Isaías Mutombo Mafavisse
{"title":"Synthesis of a Plant-based Dust Suppressant and Testing on Coal from Moatize, Mozambique","authors":"V. Campos, L. C. Morais, Isaías Mutombo Mafavisse","doi":"10.15255/cabeq.2022.2058","DOIUrl":"https://doi.org/10.15255/cabeq.2022.2058","url":null,"abstract":"The dust suppressant was synthesized using Pinus elliottii resin as raw material for the new plant-based formulation. The dust suppressant formulation was prepared by solu bilizing rosin in a ternary solution containing calcium chloride, ultrapure water, and ethanol in a molar ratio of 1:2:8. After centrifugation the supernatant was collected, 20 mL of 2 % γ-polyglutamic acid dissolved in an aqueous ethanol solution was added, and the mixture was stirred for 2 hours. The dust suppressant formulation included Pinus extract and γ-PGA acid, resulting in a plant-based dust suppressant. The performance of the new formulation in reducing PM 10 was significantly superior (82.7 %) to that of water. This suppressant is suitable for spraying onto coal ore piles and hopper cars carrying coal ore. The wettability of the product was analyzed by the Walker test, which con-firmed its adhesiveness to coal dust.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42854058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of Sulfur Dioxide Removal Reactions Kinetics by Na2CO3 and Other Different Sorbents from Coal-fired Power Plants Na2CO3与其他不同吸附剂对燃煤电厂二氧化硫脱除反应动力学的比较
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-12-23 DOI: 10.15255/cabeq.2022.2069
I. O. Bibalani, H. Ale Ebrahim
{"title":"Comparison of Sulfur Dioxide Removal Reactions Kinetics by Na2CO3 and Other Different Sorbents from Coal-fired Power Plants","authors":"I. O. Bibalani, H. Ale Ebrahim","doi":"10.15255/cabeq.2022.2069","DOIUrl":"https://doi.org/10.15255/cabeq.2022.2069","url":null,"abstract":"This work deals with kinetic parameters estimation of Na 2 CO 3 +SO 2 reaction em-ploying sophisticated random pore model. The temperature of experiments ranges from 100 to 250 °C, and various SO 2 concentrations are within 0.13–1.12 vol.%. According to the results, the reaction rate concentration dependency follows the fractional function. The values of rate constants and product layer diffusivities are expressed at various temperatures. Finally, it was attempted to describe the significance of this sorbent for SO 2 removal. Therefore, the kinetic results of Na 2 CO 3 +SO 2 reaction were compared with other similar studies on SO 2 reaction kinetics with CaO, CuO, and MgO sorbents. It was concluded that Na 2 CO 3 shows advantages of higher rate constants, lower operating temperatures, and less possibility of incomplete conversion problem. The reported kinetic constants are essential for design of flue gas desulfurization reactors, especially in coal-fired power plants.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47854164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adsorption of γ-Valerolactone: An Alternative for Solvent Recovery after Conversion of Lignocellulosic Biomass to Fermentable Sugars γ-戊内酯的吸附：木质纤维素生物质转化为可发酵糖后溶剂回收的替代方法
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2021.2009
L. Coelho, G. Johann, F. Palú, Melissa Gurgel Adeodato Vieira, R. Guirardello, Valter Nunes Trindade Júnior, Edson Antônio da Silva
{"title":"Adsorption of γ-Valerolactone: An Alternative for Solvent Recovery after Conversion of Lignocellulosic Biomass to Fermentable Sugars","authors":"L. Coelho, G. Johann, F. Palú, Melissa Gurgel Adeodato Vieira, R. Guirardello, Valter Nunes Trindade Júnior, Edson Antônio da Silva","doi":"10.15255/cabeq.2021.2009","DOIUrl":"https://doi.org/10.15255/cabeq.2021.2009","url":null,"abstract":"The γ-valerolactone is an effective solvent in solubilizing lignocellulosic biomass fractions, although it inhibits microbial activity. To avoid the negative effects on the me-tabolism of microorganisms, even small quantities of γ-valerolactone need to be removed. This study examined the adsorption of γ-valerolactone on the commercial resin. The removal efficiency, adsorption equilibrium, pH effects, and fixed-bed column conditions were investigated. The highest removal efficiency of γ-valerolactone from sugar solution was 39.92 %, with 413.78 mg g −1 γ-valerolactone adsorption capacity, observed with commercial resin Dowex Optipore L-493 and pH 4.00. Dual-site Langmuir adsorption isotherm was found to be the best-fitting model for describing the adsorption mech-anisms of γ-valerolactone on commercial resin. Thus, this study shows that γ-valerolac-tone could be removed from sugar solution by adsorption on commercial resin. In addition, the process is a viable alternative for the recovery of solvent and keeping the microbial activity in lignocellulosic biomass fractions.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42624344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Review of Technologies for the Recovery of Phosphorus from Waste Streams 从废液中回收磷的技术综述
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2022.2066
Alija Salkunić, J. Vuković, S. Smiljanić
{"title":"Review of Technologies for the Recovery of Phosphorus from Waste Streams","authors":"Alija Salkunić, J. Vuković, S. Smiljanić","doi":"10.15255/cabeq.2022.2066","DOIUrl":"https://doi.org/10.15255/cabeq.2022.2066","url":null,"abstract":"Phosphorus is essential to the growth of living organisms, and, therefore, its pres ence is considered vital for all forms of life. Research shows that phosphate rock reserves are reducing. Phosphate rock is used as raw material for the production of phos -phate-based fertilizers, and its lack of supply could have adverse effects on the global food supply. New resources that can be a potential replacement for phosphate rock in the production of fertilizers and other phosphorus-containing substances are investigated. This paper provides an overview of technology implementations, methods, and process es, as well as the latest achievements in the field of phosphorus recovery from waste streams. Different methods of phosphorus regeneration from sewage sludge and solid waste, and forms of phosphate regeneration are described. In addition, an overview of the following methods is given: nanonucleation, adsorption and ion exchange, solar evapora tion, biological assimilation of P, and membrane technologies.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47662794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adsorptive Removal of Pentavalent Arsenic from Aqueous Solutions by Granular Ferric Oxide 颗粒氧化铁吸附去除水溶液中五价砷
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2021.2018
Ronald Zakhar, J. Derco, F. Cacho, Oľga Čižmárová
{"title":"Adsorptive Removal of Pentavalent Arsenic from Aqueous Solutions by Granular Ferric Oxide","authors":"Ronald Zakhar, J. Derco, F. Cacho, Oľga Čižmárová","doi":"10.15255/cabeq.2021.2018","DOIUrl":"https://doi.org/10.15255/cabeq.2021.2018","url":null,"abstract":"Arsenic contamination of water resources, which is characterized by strong carcino-genic and toxic impacts, is a global problem. Therefore, the present study is focused on the isotherm and kinetic studies of pentavalent arsenic As(V) adsorption with initial concentration of 1 000 µg L −1 from aqueous solutions onto granular ferric oxide (GFO). Adsorption experiments were carried out by batch method, and the equilibrium and kinetic data were evaluated by the Langmuir, Freundlich, Dubinin-Radushkevich, Redlich-Peterson and Sips isotherm model, and pseudo-first and pseudo-second order kinetic model. The results obtained from this study imply that the adsorption of As(V) onto GFO was favourable, physical and multilayer process. The Sips and Redlich-Peter-son isotherm and the pseudo-first order kinetic model gave the best fit to experimental data according to the values of correlation coefficient. The maximum theoretical adsorption capacity from Langmuir isotherm model was determined to be 1 900 µg g −1 . In ad-dition, the impact of different operating conditions such as As(V) initial concentration, adsorbent dose, agitation speed, pH, temperature, and presence of phosphates and silica on adsorption capacity of GFO was also investigated. As(V) was efficiently recovered from GFO by 0.1 M NaOH desorbing solution during the three adsorption-desorption cycles.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47102631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Remediation of an Organochlorine Compound in an Unsaturated Zone Using a DL-Limonene Microemulsion System DL-柠檬烯微乳体系修复不饱和区有机氯化合物
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2021.2024
V. Campos, D. G. Marques, D. D. Anjos
{"title":"Remediation of an Organochlorine Compound in an Unsaturated Zone Using a DL-Limonene Microemulsion System","authors":"V. Campos, D. G. Marques, D. D. Anjos","doi":"10.15255/cabeq.2021.2024","DOIUrl":"https://doi.org/10.15255/cabeq.2021.2024","url":null,"abstract":"Contamination of the unsaturated zone, and hence, of groundwater by non-aqueous phase liquids has become a problem that arouses great concern due to the environmental damage it causes. Several efficient and economically beneficial techniques for the in situ treatment of contaminated soils have been applied quite frequently, including the so-called soil flushing processes. In this study, microemulsion systems were prepared using limonene, in the search for a formulation that would remove trichloroethene in soil. Limonene, a monocyclic monoterpene, is one of the main constituents of various essential oils of citrus fruits, such as oranges, tangerines and lemons. The results indicated that using a washing fluid containing 15 % DL-limonene microemulsion enabled the removal of 98.85 % of trichloroethene present in the soil after 30 minutes of residence time in the system. Hence, it can be concluded that the use of this microemulsion system is an inter-esting strategy for the remediation of soils contaminated with trichloroethene.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48658479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Byproduct from Triphala Extraction as Tannin and Rutin Sources for Production of Gallic Acid, Isoquercetin and Quercetin by Solid-State Fermentation 桑椹提取副产物作为单宁和芦丁来源固态发酵生产没食子酸、异槲皮素和槲皮素
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2021.1967
T. Chysirichote, Pattarabhorn Pakaweerachat
{"title":"Byproduct from Triphala Extraction as Tannin and Rutin Sources for Production of Gallic Acid, Isoquercetin and Quercetin by Solid-State Fermentation","authors":"T. Chysirichote, Pattarabhorn Pakaweerachat","doi":"10.15255/cabeq.2021.1967","DOIUrl":"https://doi.org/10.15255/cabeq.2021.1967","url":null,"abstract":"Byproduct from Triphala extraction process (BTP) was studied as a substrate for gallic acid, isoquercetin and quercetin production by Aspergillus niger fermentation in this research. The results showed that BTP was a good source of tannin and rutin. Neverthe­ less, the activity of A. niger on BTP as a sole substrate was very low. Supplementing nitro­ gen sources was found to be a key to enhancing conversion of tannin to gallic acid, and rutin to isoquercetin or isoquercetin and quercetin. BTP with 0.75 % sodium nitrate was sug­ gested to be an optimal supplemented nitrogen source for the production of gallic acid and isoquercetin in this research, which yielded the highest contents of 61.6±2.16 mg g –1DS and 3.27±0.29 mg g –1DS , respectively. In addition, the highest extraction yields of gallic acid, isoquercetin and quercetin were obtained by an ultrasound­assisted extraction using methanol as an extraction solvent as 12.24±2.12 mg g –1DS which was around 0.5 time higher than the one without ultrasound­assisted extraction (8.84±1.12 mg g –1DS ).","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48873363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Separation of Crocin/Betanin Using Aqueous Two-phase Systems Containing Ionic Liquid and Sorbitol 离子液体-山梨醇双水相体系分离Crocin/Betanin
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2021.2038
Roozbeh Madadi, Shahla Shahriari, H. Mozafari
{"title":"Separation of Crocin/Betanin Using Aqueous Two-phase Systems Containing Ionic Liquid and Sorbitol","authors":"Roozbeh Madadi, Shahla Shahriari, H. Mozafari","doi":"10.15255/cabeq.2021.2038","DOIUrl":"https://doi.org/10.15255/cabeq.2021.2038","url":null,"abstract":"Betanin and crocin, two food additives with attractive colors, are bioactive compounds of plants that are widely used in food, pharmaceutical, and medical industries. These bioactive pigments are sensitive to light, heat, organic solvents, and pH. It seems that a benign economic method is needed to extract these biomolecules, especially for industrial applications. The aqueous two-phase system (ATPS) is a liquid-liquid extraction technique that has shown its potential in recent years to extract and separate biomolecules. In this study, an ATPS consisting of carbohydrate (sorbitol) and ionic liquid (tetrabutyl phosphonium bromide) has been proposed as a new separation system with unique properties to study the partition coefficient of crocin and betanin. The results indicated that crocin and betanin had more tendency to the ionic liquid (IL)-rich phase and carbohydrate-rich phase, respectively. The influence of the concentration of IL and sorbitol on the partition coefficient was studied. The results showed that an increase in the tie-line length (concentrations) increased the partition coefficient of crocin and betanin. Enhancement in temperature increased the partition coefficient of crocin. The highest values of crocin recovery (97.55 %) and partition coefficient (39.85) at 308 K show that our proposed ATPS can be considered for crocin one step.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43561041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Novel L-Asparaginase from Enterobacter sp. Strain M55 from Maras Salterns in Peru 秘鲁Maras Salterns产肠杆菌M55株新l -天冬酰胺酶
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-07-26 DOI: 10.15255/cabeq.2022.2064
Abad Hurtado, J. Flores-Santos, C. N. Flores-Fernández, S. Saavedra, João H. P. M. Santos, A. Pessoa-Júnior, M. Lienqueo, M. Bayro, A. Zavaleta
{"title":"A Novel L-Asparaginase from Enterobacter sp. Strain M55 from Maras Salterns in Peru","authors":"Abad Hurtado, J. Flores-Santos, C. N. Flores-Fernández, S. Saavedra, João H. P. M. Santos, A. Pessoa-Júnior, M. Lienqueo, M. Bayro, A. Zavaleta","doi":"10.15255/cabeq.2022.2064","DOIUrl":"https://doi.org/10.15255/cabeq.2022.2064","url":null,"abstract":"L-Asparaginase (ASNase) is used in medicine for neoplasms treatment and in food industry for mitigation of acrylamide in high-temperature processed food. In medicine, commercial ASNases have exhibited side effects and l -glutaminase (GLNase) activity affecting the clinical treatment. The aim of this work was to study a novel ASNase from Enterobacter sp. M55 isolated from Maras Salters in Peru, which was purified and biochemically characterised. This ASNase exhibited a K m of 5.71 mM and a V max of 0.16 µmol mL –1 min –1 , as well as an optimum temperature and pH of 37 °C and 6, respectively. Moreover, a good activity (80 %) was observed at physiological pH. Likewise, the enzyme increased its activity by around 50% in presence of urea, glutathione, and glucose. Whilst in presence of serum compounds, it kept more that 60 % of activity. In addition, this ASNase showed low GLNase activity.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49099461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Machine Learning Approaches for Fault Detection in Semiconductor Manufacturing Process: A Critical Review of Recent Applications and Future Perspectives 半导体制造过程中故障检测的机器学习方法：近期应用和未来展望
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2022-04-11 DOI: 10.15255/cabeq.2021.1973
V. Arpitha, A. Pani
{"title":"Machine Learning Approaches for Fault Detection in Semiconductor Manufacturing Process: A Critical Review of Recent Applications and Future Perspectives","authors":"V. Arpitha, A. Pani","doi":"10.15255/cabeq.2021.1973","DOIUrl":"https://doi.org/10.15255/cabeq.2021.1973","url":null,"abstract":"In modern industries, early fault detection is crucial for maintaining process safety and product quality. Process data contains information on the entire plant acting as a map for visualization of relationships between various plant units, making data-driven process monitoring a key technology for efficiency enhancement. This article focuses on review of process monitoring techniques reported for metal etching process, which is a batch operation carried out in semiconductor manufacturing industry. Various machine learning (and deep learning) techniques applied to date for fault detection and diagnosis of metal etching process are surveyed. Detailed survey of research work on different techniques and the reported results are presented in graphical (pie chart and bar chart) and tabular format. The review article further presents the pros and cons, gaps and future directions in the techniques applied in metal etching process.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48800283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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