Pub Date : 2023-08-31DOI: 10.1080/00194506.2023.2232792
R. Kumari, S. Sengupta
{"title":"MgAl2O4 with CaO in supported Ni and Ni–Co catalysts – impact on CO2 reforming of CH4","authors":"R. Kumari, S. Sengupta","doi":"10.1080/00194506.2023.2232792","DOIUrl":"https://doi.org/10.1080/00194506.2023.2232792","url":null,"abstract":"","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48666658","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}
Pub Date : 2023-08-02DOI: 10.1080/00194506.2023.2234908
Shabnam Ahmadi, Soumya Ghosh, Alhadji Malloum, Mika Sillanpää, Chinenye Adaobi Igwegbe, Prosper E. Ovuoraye, Joshua O. Ighalo
ABSTRACTMolecular modelling and simulation were used to examine the efficacy of iron nanoparticles (Fe3O4–NPs) in removing amoxicillin (AMX) from aqueous media and determine the optimal conditions. Fe3O4–NPs were initially ascertained using scanning electron microscopy, and Fourier transform infrared spectroscopy. The molecular optimisation modelling via DFT confirmed AMX molecule has chemical potential (–3.59), and electrophilicity index (2.14). The results established that a small chemical hardness = 3.0 eV and molecular energy gap of 6.01 eV, which makes it reactive. The molecule of the antibiotics could interact and be absorbed by the lactase enzyme. The parameters: pH (3–7), time (15–80 min), Fe3O4–NPs dosage (0.1–1.0 g/L), and antibiotic concentration (10–100 mg/L) were studied. The impact of optimum variables pH3, and dosage (0.5 g/L) for adsorption of AMX molecules onto coated Fe3O4–NPs translated to 98% efficiency at 60 mg/l of AMX and 60 min. The adsorption data fitted the Langmuir (R2: 0.9245) with minimal error metrics RMSE ≤ 1.2 when compared to the Freundlich isotherm R2 (0.88) and intraparticle diffusion model R2 (0.58). The maximum adsorption capacity of AMX to Fe3O4–NPs corresponds to 6.47 mg/g with a corresponding adsorption constant of 2.8. Furthermore, AMX adsorption onto Fe3O4–NPs followed pseudo-second-order at R2 (0.9999), with an adsorption constant (k = 3.6 × 10−2g/mg.min).KEYWORDS: Molecular modellingamoxicillinadsorptionnanoparticleskinetics Data availability statementNo data were used to support this study. All data generated or analyzed during this study are included in this article.Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"Amoxicillin adsorption from aqueous solution by magnetite iron nanoparticles: molecular modelling and simulation","authors":"Shabnam Ahmadi, Soumya Ghosh, Alhadji Malloum, Mika Sillanpää, Chinenye Adaobi Igwegbe, Prosper E. Ovuoraye, Joshua O. Ighalo","doi":"10.1080/00194506.2023.2234908","DOIUrl":"https://doi.org/10.1080/00194506.2023.2234908","url":null,"abstract":"ABSTRACTMolecular modelling and simulation were used to examine the efficacy of iron nanoparticles (Fe3O4–NPs) in removing amoxicillin (AMX) from aqueous media and determine the optimal conditions. Fe3O4–NPs were initially ascertained using scanning electron microscopy, and Fourier transform infrared spectroscopy. The molecular optimisation modelling via DFT confirmed AMX molecule has chemical potential (–3.59), and electrophilicity index (2.14). The results established that a small chemical hardness = 3.0 eV and molecular energy gap of 6.01 eV, which makes it reactive. The molecule of the antibiotics could interact and be absorbed by the lactase enzyme. The parameters: pH (3–7), time (15–80 min), Fe3O4–NPs dosage (0.1–1.0 g/L), and antibiotic concentration (10–100 mg/L) were studied. The impact of optimum variables pH3, and dosage (0.5 g/L) for adsorption of AMX molecules onto coated Fe3O4–NPs translated to 98% efficiency at 60 mg/l of AMX and 60 min. The adsorption data fitted the Langmuir (R2: 0.9245) with minimal error metrics RMSE ≤ 1.2 when compared to the Freundlich isotherm R2 (0.88) and intraparticle diffusion model R2 (0.58). The maximum adsorption capacity of AMX to Fe3O4–NPs corresponds to 6.47 mg/g with a corresponding adsorption constant of 2.8. Furthermore, AMX adsorption onto Fe3O4–NPs followed pseudo-second-order at R2 (0.9999), with an adsorption constant (k = 3.6 × 10−2g/mg.min).KEYWORDS: Molecular modellingamoxicillinadsorptionnanoparticleskinetics Data availability statementNo data were used to support this study. All data generated or analyzed during this study are included in this article.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136384314","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}
Pub Date : 2023-07-19DOI: 10.1080/00194506.2023.2232386
Ritu Parashar, B. C. Nailwal, N. Goswami, R. K. Lenka, A. Singha, S. Kar, A. K. Adak, S. C. Parida, S. Mukhopadhyay
{"title":"Palladium-based membranes for potential application in bio-jet fuel production unit","authors":"Ritu Parashar, B. C. Nailwal, N. Goswami, R. K. Lenka, A. Singha, S. Kar, A. K. Adak, S. C. Parida, S. Mukhopadhyay","doi":"10.1080/00194506.2023.2232386","DOIUrl":"https://doi.org/10.1080/00194506.2023.2232386","url":null,"abstract":"","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45258484","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}
Pub Date : 2023-07-13DOI: 10.1080/00194506.2023.2223605
Shrishma Paik, S. Satpati, D. Singh
{"title":"Nucleation kinetics of reactive crystallization of ammonium di-uranate","authors":"Shrishma Paik, S. Satpati, D. Singh","doi":"10.1080/00194506.2023.2223605","DOIUrl":"https://doi.org/10.1080/00194506.2023.2223605","url":null,"abstract":"","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47085132","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}
Pub Date : 2023-06-28DOI: 10.1080/00194506.2023.2214153
Sarita D. Gawas, Prasanna V. Joshi, V. Rathod
{"title":"Enzymatic synthesis of Isopropyl stearate, a cosmetic emollient: optimisation and kinetic approach","authors":"Sarita D. Gawas, Prasanna V. Joshi, V. Rathod","doi":"10.1080/00194506.2023.2214153","DOIUrl":"https://doi.org/10.1080/00194506.2023.2214153","url":null,"abstract":"","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47074976","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}
Pub Date : 2023-05-24DOI: 10.1080/00194506.2023.2214150
I. Isayev, Özge Demir, Aslı Gök, Ş. Kırbaslar
{"title":"Reactive extraction of protocatechuic acid by di-n-octylamine and optimisation with Box–Behnken design","authors":"I. Isayev, Özge Demir, Aslı Gök, Ş. Kırbaslar","doi":"10.1080/00194506.2023.2214150","DOIUrl":"https://doi.org/10.1080/00194506.2023.2214150","url":null,"abstract":"","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42741678","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}
Pub Date : 2023-05-24DOI: 10.1080/00194506.2023.2205860
S. P. Khadanga, D. K. Samal, P. K. Patnaik, G. Roy
ABSTRACT The present investigation on a hydrodynamic study focused on the RPM and pressure drop in a pressure swing rotating bubble cap (PSRBC) sparger column. PSRBC is one of its kind, which has the capability of producing bubbles and effective mixing in the sparged column. In this experimental work, a plastic PSRBC sparger of cylindrical shape has been designed and used for the supply of compressed gas (air) through the stationary liquid (water-glycerine solution) pool. The system variables viz. superficial air velocity, stationary liquid height, column diameter, the viscosity of liquid and sparger outlet opening area are considered for this study. Model equations have been developed for predicting RPM for the PSRBC sparger and pressure drop of the column in dimensionless form. The calculated values from predicted models have been compared with the experimental values and the coefficients of correlations are found to be more than 0.97. The present hydrodynamic study relates to RPM and pressure drop and may be useful for the design of gas–liquid systems viz. bubble columns, deaerators, bio-reactors (without stirrer) etc. where the interfacial area of gas–liquid has a distinct role in the performance. GRAPHICAL ABSTRACT
{"title":"Hydrodynamic study of pressure swing rotating bubble cap column with gas-liquid systems","authors":"S. P. Khadanga, D. K. Samal, P. K. Patnaik, G. Roy","doi":"10.1080/00194506.2023.2205860","DOIUrl":"https://doi.org/10.1080/00194506.2023.2205860","url":null,"abstract":"ABSTRACT The present investigation on a hydrodynamic study focused on the RPM and pressure drop in a pressure swing rotating bubble cap (PSRBC) sparger column. PSRBC is one of its kind, which has the capability of producing bubbles and effective mixing in the sparged column. In this experimental work, a plastic PSRBC sparger of cylindrical shape has been designed and used for the supply of compressed gas (air) through the stationary liquid (water-glycerine solution) pool. The system variables viz. superficial air velocity, stationary liquid height, column diameter, the viscosity of liquid and sparger outlet opening area are considered for this study. Model equations have been developed for predicting RPM for the PSRBC sparger and pressure drop of the column in dimensionless form. The calculated values from predicted models have been compared with the experimental values and the coefficients of correlations are found to be more than 0.97. The present hydrodynamic study relates to RPM and pressure drop and may be useful for the design of gas–liquid systems viz. bubble columns, deaerators, bio-reactors (without stirrer) etc. where the interfacial area of gas–liquid has a distinct role in the performance. GRAPHICAL ABSTRACT","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47556722","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}
Pub Date : 2023-05-10DOI: 10.1080/00194506.2023.2205851
Viktor Gevod, Ivan Borysov, L. Frolova, A. Issayeva
ABSTRACT The influence of bacterial nutrition (by ethanol) on the appearance of hydrogen sulfide and colloidal sulfur in the filtrate of innovative U-shaped small-sized (point-of-use) submersible denitrifying biofilter describes in the course of its regular operation. The device intends to get drinking water from groundwater sources contaminated with nitrates, sulfates, and heavy metal ions. Colonies of denitrifying bacteria occupy an ecological niche inside the filter bed in an anoxic medium in the inlet elbow of the biofilter and reduce the concentration of nitrates below of hygienic limit at the optimal feed by ethanol. Hydrogen sulfide and colloidal sulfur produce the sulfate-reducing and sulfur bacteria. Sulfate-reducing bacteria act in an anaerobic environment in the bottom conjunction zone of the inlet and outlet elbows of the biofilter. These bacteria release hydrogen sulfide when ethanol adds to filtering water in excess compared to the dosage required for denitrification. Colonies of sulfur bacteria occupy an ecological niche in the output zone of the biofilter exit elbow and oxidise hydrogen sulfide to elemental sulfur. Sulfate reduction associated with nitrates removal can be helpful for additional water purification from admixtures of heavy and polyvalent metal ions. GRAPHICAL ABSTRACT
{"title":"Influence of the nutrition substrate concentration on sulfate reduction in denitrifying biofilter point of use","authors":"Viktor Gevod, Ivan Borysov, L. Frolova, A. Issayeva","doi":"10.1080/00194506.2023.2205851","DOIUrl":"https://doi.org/10.1080/00194506.2023.2205851","url":null,"abstract":"ABSTRACT The influence of bacterial nutrition (by ethanol) on the appearance of hydrogen sulfide and colloidal sulfur in the filtrate of innovative U-shaped small-sized (point-of-use) submersible denitrifying biofilter describes in the course of its regular operation. The device intends to get drinking water from groundwater sources contaminated with nitrates, sulfates, and heavy metal ions. Colonies of denitrifying bacteria occupy an ecological niche inside the filter bed in an anoxic medium in the inlet elbow of the biofilter and reduce the concentration of nitrates below of hygienic limit at the optimal feed by ethanol. Hydrogen sulfide and colloidal sulfur produce the sulfate-reducing and sulfur bacteria. Sulfate-reducing bacteria act in an anaerobic environment in the bottom conjunction zone of the inlet and outlet elbows of the biofilter. These bacteria release hydrogen sulfide when ethanol adds to filtering water in excess compared to the dosage required for denitrification. Colonies of sulfur bacteria occupy an ecological niche in the output zone of the biofilter exit elbow and oxidise hydrogen sulfide to elemental sulfur. Sulfate reduction associated with nitrates removal can be helpful for additional water purification from admixtures of heavy and polyvalent metal ions. GRAPHICAL ABSTRACT","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48675562","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}
Pub Date : 2023-04-06DOI: 10.1080/00194506.2023.2196558
M. Minimol, K. Vidya Shetty, M. B. Saidutta
{"title":"Bioleaching of zinc from e-waste by A. aquatilis in fluidised bed bioreactor","authors":"M. Minimol, K. Vidya Shetty, M. B. Saidutta","doi":"10.1080/00194506.2023.2196558","DOIUrl":"https://doi.org/10.1080/00194506.2023.2196558","url":null,"abstract":"","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42676323","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}
Pub Date : 2023-03-23DOI: 10.1080/00194506.2023.2190753
Omar Ou-ani, L. Oucheikh, Axel Dabbous, M. Znini, J. Costa, L. Majidi
ABSTRACT The present study describes for the first time the optimisation of the extraction by hydrodistillation and chemical composition of the essential oil (EO) of Ballota hirsuta aerial parts using Gas chromatography (GC/FID) and GC-mass spectrometry (GC/MS) analysis. Single-factor experiments and response surface methodology (RSM) based on a central composite design (CCD) were used to optimise the EO extraction parameters including drying period (0–21 days), extraction time (60–240 min) and water/plant ratio (5–20 ml/g). The optimum conditions for obtaining the best yield (0.91%) are a drying period of 7 days, an extraction time of 120 min and a water/plant ratio of 10 ml/g. The findings suggest that the experimental and the predicted data are in reasonable agreement, showing that the quadratic model was the fittest for the optimisation of the extraction process Under these optimum condition, GC/FID and GC/MS enabled the identification of forty-three volatile components representing 82.3% of the total of EO. Germacrene-D (16%), Z-Phytol (7.7%), α – Cadinol (7.3%) and Carvacrol (6.7%) were the main constituents of this EO. GRAPHICAL ABSTRACT
{"title":"Modelling, extraction optimisation and phytochemical profile of essential oil from Moroccan endemic medicinal plant Ballota hirsuta","authors":"Omar Ou-ani, L. Oucheikh, Axel Dabbous, M. Znini, J. Costa, L. Majidi","doi":"10.1080/00194506.2023.2190753","DOIUrl":"https://doi.org/10.1080/00194506.2023.2190753","url":null,"abstract":"ABSTRACT The present study describes for the first time the optimisation of the extraction by hydrodistillation and chemical composition of the essential oil (EO) of Ballota hirsuta aerial parts using Gas chromatography (GC/FID) and GC-mass spectrometry (GC/MS) analysis. Single-factor experiments and response surface methodology (RSM) based on a central composite design (CCD) were used to optimise the EO extraction parameters including drying period (0–21 days), extraction time (60–240 min) and water/plant ratio (5–20 ml/g). The optimum conditions for obtaining the best yield (0.91%) are a drying period of 7 days, an extraction time of 120 min and a water/plant ratio of 10 ml/g. The findings suggest that the experimental and the predicted data are in reasonable agreement, showing that the quadratic model was the fittest for the optimisation of the extraction process Under these optimum condition, GC/FID and GC/MS enabled the identification of forty-three volatile components representing 82.3% of the total of EO. Germacrene-D (16%), Z-Phytol (7.7%), α – Cadinol (7.3%) and Carvacrol (6.7%) were the main constituents of this EO. GRAPHICAL ABSTRACT","PeriodicalId":13430,"journal":{"name":"Indian Chemical Engineer","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42783289","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}
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