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Swain, S., Mishra, P. K., Nandi, S., Pradhan, B., Sahoo, S. & Al-Ansari, N. (2024). A simplistic approach for monitoring meteorological drought over arid regions: a case study of Rajasthan, India. Applied water science, 14(2), Article ID 36.
Open this publication in new window or tab >>A simplistic approach for monitoring meteorological drought over arid regions: a case study of Rajasthan, India
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2024 (English)In: Applied water science, ISSN 2190-5487, E-ISSN 2190-5495, Vol. 14, no 2, article id 36Article in journal (Refereed) Published
Abstract [en]

The commonly used precipitation-based drought indices typically rely on probability distribution functions that can be suitable when the data exhibit minimal discrepancies. However, in arid and semi-arid regions, the precipitation data often display significant discrepancies due to highly irregular rainfall patterns. Consequently, imposing any probability distributions on the data for drought analysis in such regions may not be effective. To address this issue, this study employs a novel drought index called the Discrepancy Precipitation Index (DPI), specifically designed for arid regions. Unlike traditional methods, the DPI does not impose a probability distribution on the precipitation data; instead, it relies on the discrepancy between the data and the mean value. Drought severity classifications (i.e., Drought-I, Drought-II, and Drought-III) are proposed based on the DPI values. The DPI is used to characterize and assess the meteorological drought years based on annual and monsoonal precipitation over nineteen districts in Western Rajasthan, India, during 1901–2019. Additionally, a novel statistic called Discrepancy Measure (DM) is employed to assess the degree of discrepancy in the precipitation climatology of the districts for annual and monsoon precipitation time series. Based on annual precipitation, Jaisalmer district exhibited the highest number of historical drought years (35), whereas three districts, i.e., Jhunjhunu, Dausa, and Bhilwara exhibited the lowest number of drought years (11). Similarly, based on monsoon precipitation, Jaisalmer and Bhilwara encountered the highest (34) and the lowest (11) number of drought years, respectively. The return period of Drought-II is lower for monsoon precipitation-based DPI as compared to that of the annual precipitation-based DPI for all the districts. The DM and DPI-based total number of droughts are found to be strongly correlated for both annual and monsoon precipitation. The DM value is highest for Jaisalmer and lowest for Bhilwara district. The findings reveal DPI as an efficient tool for assessing drought years, particularly in arid climatic conditions. Moreover, as the DM value increases for a precipitation series, the DPI becomes more effective in capturing drought events.

Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
Arid region, Discrepancy measure, Discrepancy precipitation index, Drought monitoring, Rajasthan
National Category
Other Earth and Related Environmental Sciences
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104174 (URN)10.1007/s13201-023-02085-z (DOI)001150735200005 ()2-s2.0-85183348413 (Scopus ID)
Note

Validerad;2024;Nivå 2;2024-02-16 (joosat);

Full text license: CC BY

Available from: 2024-02-05 Created: 2024-02-05 Last updated: 2024-03-07Bibliographically approved
Al Samarrai, S. Y., AlZubaidi, R. & Al-Ansari, N. (2024). Charge transfer complex-based spectrophotometric analysis of famotidine in pure and pharmaceutical dosage forms. Scientific Reports, 14, Article ID 3661.
Open this publication in new window or tab >>Charge transfer complex-based spectrophotometric analysis of famotidine in pure and pharmaceutical dosage forms
2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, article id 3661Article in journal (Refereed) Published
Abstract [en]

A straightforward and efficient spectrum technique was created using Ortho-chloranil as the electron acceptor (-acceptor) in a charge transfer (CT) complex formation reaction to determine the concentration of famotidine (FMD) in solutions. Compared to the double-distilled blank solution, the reaction result detected a definite violet colour at a maximum absorption wavelength of 546 nm, For concentrations range 2—28 µg/ml, the technique demonstrated excellent compliance with Beer-Law and Lambert's, as evidenced by its molar absorptivity of 2159.648 L mol−1 cm–1. Lower detection limits of 0.3024 µg/ml and 1.471 µg/ml, respectively, were discovered. The complexes of famotidine and Ortho-chloranil were found to have a 2:1 stoichiometry. Additionally, the suggested approach effectively estimated famotidine concentrations in pharmaceutical formulations, particularly in tablet form.

Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
Charge transfer complex, Famotidine, Ortho-chloranil, Spectrophotometric
National Category
Physical Chemistry
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104512 (URN)10.1038/s41598-024-54402-4 (DOI)38351288 (PubMedID)2-s2.0-85185115006 (Scopus ID)
Note

Validerad;2024;Nivå 2;2024-03-07 (hanlid);

Full text license: CC BY

Available from: 2024-03-07 Created: 2024-03-07 Last updated: 2024-03-07Bibliographically approved
Athab, Z. H., Halbus, A. F., Mohammed, S. B., Atiyah, A. J., Ismael, H. I., Saddam, N. S., . . . Al-Ansari, N. (2024). Comparison activity of pure and chromium-doped nickel oxide nanoparticles for the selective removal of dyes from water. Scientific Reports, 14(1), Article ID 4032.
Open this publication in new window or tab >>Comparison activity of pure and chromium-doped nickel oxide nanoparticles for the selective removal of dyes from water
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2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, no 1, article id 4032Article in journal (Refereed) Published
Abstract [en]

The current study involves a synthesis of a composite of nickel oxide nanoparticles (NiONPs) with a chromium dopant to yield (Cr/NiONPs). Synthesis of nickel oxide was performed by the co-precipitation method. The synthesis of the composite was conducted by the impregnation method. FTIR, EDX, SEM, and XRD were used to characterize the synthesized materials. The synthesised materials’ point zero charges (PZC) were performed using the potentiometric titration method. The obtained results show that the PZC for neat nickel oxide was around 5, and it was around 8 for Cr/NiONPs. The adsorption action of the prepared materials was examined by applying them to remove Reactive Red 2 (RR2) and Crystal Violate (CV) dyes from solutions. The outcomes demonstrated that Cr/NiONPs were stronger in the removal of dyes than NiONPs. Cr/NiONPs achieved 99.9% removal of dyes after 1 h. Adsorption isotherms involving Freundlich and Langmuir adsorption isotherms were also conducted, and the outcomes indicated that the most accurate representation of the adsorption data was offered by Langmuir adsorption isotherms. Additionally, it was discovered that the adsorption characteristics of the NiONPs and Cr/NiONPs correspond well with the pseudo-second-order kinetic model. Each of the NiONPs and Cr/NiONPs was reused five times, and the results display that the effectiveness of the removal of RR2 dye slightly declined with the increase in reuse cycles; it lost only 5% of its original efficiency after the 5 cycles. Generally, Cr/NiONPs showed better reusability than NiONPs under the same conditions.

Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
Adsorption, Cr/NiONPs, Crystal violate, Reactive red 2 dye, Selective removal
National Category
Water Treatment
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104505 (URN)10.1038/s41598-024-53490-6 (DOI)38369532 (PubMedID)2-s2.0-85185439274 (Scopus ID)
Note

Validerad;2024;Nivå 2;2024-03-07 (hanlid);

Funder: University of Babylon, Iraq;

Full text license: CC BY

Available from: 2024-03-07 Created: 2024-03-07 Last updated: 2024-03-07Bibliographically approved
Sulaiman, S. O., Ahmed Najm, A. B., Allawi, M. F., Al Ansari, N. & Kamel, A. H. (2024). Evaluate Sediment Transport Formulas in the Euphrates River Upstream Ramadi Barrage in the West of Iraq. In: Ameer Abdulrahman Hilal; Mohammed Abed Ahmed; Abdulkader Ismail Abdulwahab; Yousif Ismail Al Mashhadany; Waleed Mohammed Abed; Ahmed Tareq Noaman; Saad Mohammed Jalil (Ed.), 2nd International Conference for Engineering Sciences and Information Technology (ESIT 2022): . Paper presented at 2nd International Conference for Engineering Sciences and Information Technology, ESIT 2022, Al Anbar, Iraq, August 17-18, 2022. American Institute of Physics (AIP), Article ID 030067.
Open this publication in new window or tab >>Evaluate Sediment Transport Formulas in the Euphrates River Upstream Ramadi Barrage in the West of Iraq
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2024 (English)In: 2nd International Conference for Engineering Sciences and Information Technology (ESIT 2022) / [ed] Ameer Abdulrahman Hilal; Mohammed Abed Ahmed; Abdulkader Ismail Abdulwahab; Yousif Ismail Al Mashhadany; Waleed Mohammed Abed; Ahmed Tareq Noaman; Saad Mohammed Jalil, American Institute of Physics (AIP), 2024, article id 030067Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2024
Series
AIP Conference Proceedings, ISSN 0094-243X, E-ISSN 1551-7616 ; 3009
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104462 (URN)10.1063/5.0190517 (DOI)2-s2.0-85185778546 (Scopus ID)
Conference
2nd International Conference for Engineering Sciences and Information Technology, ESIT 2022, Al Anbar, Iraq, August 17-18, 2022
Note

ISBN for host publication: 978-0-7354-4835-3;

Available from: 2024-03-12 Created: 2024-03-12 Last updated: 2024-03-12Bibliographically approved
Jahad, U. A., Chabuk, A., Al-Ameri, R., Majdi, H. S., Majdi, A., Al-Ansari, N. & Abed, S. A. (2024). Flow characteristics and energy dissipation over stepped spillway with various step geometries: case study (steps with curve end sill). Applied water science, 14(3), Article ID 60.
Open this publication in new window or tab >>Flow characteristics and energy dissipation over stepped spillway with various step geometries: case study (steps with curve end sill)
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2024 (English)In: Applied water science, ISSN 2190-5487, E-ISSN 2190-5495, Vol. 14, no 3, article id 60Article in journal (Refereed) Published
Abstract [en]

Stepped weirs are used in a wide range of applications, designed to increase energy dissipation. In this study, laboratory experiments were conducted in a flume on six stepped weir models, with a downstream angle of θ = 26.6°. The physical models used were on a scale of 10:1, and tests of discharges up to 0.055 m3/s were carried out. Several step geometries including traditional step, sill and curve geometries were used to study flow behavior and overall energy dissipation. The laboratory investigations were augmented by modelling numerically the within step flow and energy behavior using a 2-D CFD model, incorporating the k-ε model for turbulence closure. The results showed that energy dissipation was greatest for the curved steps by about 10.5%, where it was observed that the skimming flow regime was shifted to a higher discharge range. Numerical modelling results showed good agreement with the experimental results. An inspection of the modelled streamlines highlighted the increase in vortex intensity for the curve model, reflecting the strong circulation observed. The predicted stepwise energy dissipation showed the energy dissipation increase when the step number Ns increases. For the range of step height hs, tested, our results showed that energy dissipation increased with step height. The results from this study can be used to inform engineering design for steps with θ = 26.6° and provide estimates of the expected energy dissipation and residual energy.

Place, publisher, year, edition, pages
Springer Science and Business Media Deutschland GmbH, 2024
Keywords
Energy dissipation, Flow regime, Modified step, Spillway, Stepped
National Category
Energy Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104628 (URN)10.1007/s13201-024-02110-9 (DOI)2-s2.0-85186449956 (Scopus ID)
Note

Funder: Deakin University;

Full text license: CC BY

Available from: 2024-03-18 Created: 2024-03-18 Last updated: 2024-03-18
Ehsan, M., Shabbir, H., Al-Quraishi, A. M. F., Al-Ansari, N., Ahmad, Z., Abdelrahman, K., . . . Elbeltagi, A. (2024). Groundwater delineation for sustainable improvement and development aided by GIS, AHP, and MIF techniques. Applied water science, 14(2), Article ID 23.
Open this publication in new window or tab >>Groundwater delineation for sustainable improvement and development aided by GIS, AHP, and MIF techniques
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2024 (English)In: Applied water science, ISSN 2190-5487, E-ISSN 2190-5495, Vol. 14, no 2, article id 23Article in journal (Refereed) Published
Abstract [en]

Exploration of groundwater is an integral part of viable resource growth for society, economy, and irrigation. However, uncontrolled utilization is mainly reported in urban and industries due to the increasing demand for water in semi-arid and arid regions of the world. In the background, groundwater demarcation for potential areas is vital in meeting necessary demand. The current study applied an integrated method comprising the analytical hierarchy process (AHP), multiple influence factors (MIF), combined with a linear regression curve and observatory well data for groundwater prospects mapping. Thematic maps such as flow direction, flow accumulation, elevation map, land use land cover, slope, soil texture, hill shade, geomorphology, normalized vegetation index, and groundwater depth map were generated utilizing remote sensing techniques. The relative weight of each parameter was estimated and then assigned to major and minor parameters. Potential zones for groundwater were classified into five classes, namely very good, good, moderate, poor, and very poor, based on AHP and MIF methods. A spatially explicit sensitivity and uncertainty analysis method to a GIS-based multi-criteria groundwater potential zone model is presented in this research. The study addressed a flaw in the way groundwater potential mapping results are typically presented in GIS-based multi-criteria decision analysis studies, where discrete class outputs are used without any assessment of their certainty with respect to variations in criteria weighting, which is one of the main contributors to output uncertainty. The study region is categorized based on inferred results as very poor, poor, marginal, and very good in potential ground quality 3.04 km2 is considered extremely poor, 3.33 km2 is considered poor, 64.42 km2 is considered very good, and 85.84 km2 is considered marginal zones, which shows reliable and potential implementation. The outcomes of AHP and MIF were validated by linear regression curve and actual water table in a study area. The study results help to formulate the potential demarcation of groundwater zones for future sustainable planning and development of groundwater sources. This study may be helpful to provide a cost-effective solution to water resources crises. The current study finding may be helpful for decision-makers and administrative professionals for sustainable management of groundwater resources for present and future demands.

Place, publisher, year, edition, pages
Springer Science and Business Media Deutschland GmbH, 2024
Keywords
Analytical hierarchy process (AHP), Groundwater, Multiple influence factors (MIF), Remote sensing, Thematic maps
National Category
Water Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-103995 (URN)10.1007/s13201-023-02065-3 (DOI)001144332900002 ()2-s2.0-85182848554 (Scopus ID)
Note

Funder: King Saud University (RSP2024R351); Al-Amodi Autism Research Chair, King Saud University; College of Dentistry, King Saud University; College of Food and Agriculture Sciences, King Saud University; College of Medicine, King Saud University; Deanship of Scientific Research, King Saud University; Female Center for Scientific and Medical Colleges, King Saud University; Research Center of the College of Computer and Information Sciences, King Saud University;

Full text license: CC BY

Available from: 2024-01-29 Created: 2024-01-29 Last updated: 2024-03-07
Muhammad, M. K., Hamed, M. M., Harun, S., Sa’adi, Z., Sammen, S. S., Al-Ansari, N., . . . Scholz, M. (2024). Heatwaves in Peninsular Malaysia: a spatiotemporal analysis. Scientific Reports, 14, Article ID 4255.
Open this publication in new window or tab >>Heatwaves in Peninsular Malaysia: a spatiotemporal analysis
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2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, article id 4255Article in journal (Refereed) Published
Abstract [en]

One of the direct and unavoidable consequences of global warming-induced rising temperatures is the more recurrent and severe heatwaves. In recent years, even countries like Malaysia seldom had some mild to severe heatwaves. As the Earth's average temperature continues to rise, heatwaves in Malaysia will undoubtedly worsen in the future. It is crucial to characterize and monitor heat events across time to effectively prepare for and implement preventative actions to lessen heatwave's social and economic effects. This study proposes heatwave-related indices that take into account both daily maximum (Tmax) and daily lowest (Tmin) temperatures to evaluate shifts in heatwave features in Peninsular Malaysia (PM). Daily ERA5 temperature dataset with a geographical resolution of 0.25° for the period 1950–2022 was used to analyze the changes in the frequency and severity of heat waves across PM, while the LandScan gridded population data from 2000 to 2020 was used to calculate the affected population to the heatwaves. This study also utilized Sen's slope for trend analysis of heatwave characteristics, which separates multi-decadal oscillatory fluctuations from secular trends. The findings demonstrated that the geographical pattern of heatwaves in PM could be reconstructed if daily Tmax is more than the 95th percentile for 3 or more days. The data indicated that the southwest was more prone to severe heatwaves. The PM experienced more heatwaves after 2000 than before. Overall, the heatwave-affected area in PM has increased by 8.98 km2/decade and its duration by 1.54 days/decade. The highest population affected was located in the central south region of PM. These findings provide valuable insights into the heatwaves pattern and impact.

Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
Hot extremes, LandScan population, Peninsular Malaysia, Reanalysis data, Tropical region
National Category
Climate Research
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104467 (URN)10.1038/s41598-024-53960-x (DOI)38383678 (PubMedID)2-s2.0-85185654748 (Scopus ID)
Note

Validerad;2024;Nivå 2;2024-03-06 (hanlid);

Funder: UTM Encouragement Research (31J45); Universiti Teknologi Malaysia (Q.J130000.2551.21H59);

Full text license: CC BY

Available from: 2024-03-06 Created: 2024-03-06 Last updated: 2024-03-06Bibliographically approved
Heddam, S., Vishwakarma, D. K., Abed, S. A., Sharma, P., Al-Ansari, N., Alataway, A., . . . Mattar, M. A. (2024). Hybrid river stage forecasting based on machine learning with empirical mode decomposition. Applied water science, 14(3), Article ID 46.
Open this publication in new window or tab >>Hybrid river stage forecasting based on machine learning with empirical mode decomposition
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2024 (English)In: Applied water science, ISSN 2190-5487, E-ISSN 2190-5495, Vol. 14, no 3, article id 46Article in journal (Refereed) Published
Abstract [en]

The river stage is certainly an important indicator of how the water level fluctuates overtime. Continuous control of the water stage can help build an early warning indicator of floods along rivers and streams. Hence, forecasting river stages up to several days in advance is very important and constitutes a challenging task. Over the past few decades, the use of machine learning paradigm to investigate complex hydrological systems has gained significant importance, and forecasting river stage is one of the promising areas of investigations. Traditional in situ measurements, which are sometime restricted by the existing of several handicaps especially in terms of regular access to any points alongside the streams and rivers, can be overpassed by the use of modeling approaches. For more accurate forecasting of river stages, we suggest a new modeling framework based on machine learning. A hybrid forecasting approach was developed by combining machine learning techniques, namely random forest regression (RFR), bootstrap aggregating (Bagging), adaptive boosting (AdaBoost), and artificial neural network (ANN), with empirical mode decomposition (EMD) to provide a robust forecasting model. The singles models were first applied using only the river stage data without preprocessing, and in the following step, the data were decomposed into several intrinsic mode functions (IMF), which were then used as new input variables. According to the obtained results, the proposed models showed improved results compared to the standard RFR without EMD for which, the error performances metrics were drastically reduced, and the correlation index was increased remarkably and great changes in models’ performances have taken place. The RFR_EMD, Bagging_EMD, and AdaBoost_EMD were less accurate than the ANN_EMD model, which had higher R≈0.974, NSE≈0.949, RMSE≈0.330 and MAE≈0.175 values. While the RFR_EMD and the Bagging_EMD were relatively equal and exhibited the same accuracies higher than the AdaBoost_EMD, the superiority of the ANN_EMD was obvious. The proposed model shows the potential for combining signal decomposition with machine learning, which can serve as a basis for new insights into river stage forecasting.

Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
ANN, Bagging, Boosting, Forecasting, Lag time, RFR, River, Stage
National Category
Geotechnical Engineering Water Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-104504 (URN)10.1007/s13201-024-02103-8 (DOI)2-s2.0-85185225647 (Scopus ID)
Note

Validerad;2024;Nivå 2;2024-03-07 (hanlid);

Funder: Deanship of Scientific Research, King Saud University;

Full text license: CC BY

Available from: 2024-03-07 Created: 2024-03-07 Last updated: 2024-03-07Bibliographically approved
Gupta, R. K., Sraw, P. K., Kang, J. S., Kaur, J., Sharma, V., Pathania, N., . . . Mattar, M. A. (2024). Interactive effects of long-term management of crop residue and phosphorus fertilization on wheat productivity and soil health in the rice–wheat. Scientific Reports, 14(1), Article ID 1399.
Open this publication in new window or tab >>Interactive effects of long-term management of crop residue and phosphorus fertilization on wheat productivity and soil health in the rice–wheat
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2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, no 1, article id 1399Article in journal (Refereed) Published
Abstract [en]

In the context of degradation of soil health, environmental pollution, and yield stagnation in the rice–wheat system in the Indo-Gangetic Plains of South Asia, an experiment was established in split plot design to assess the long-term effect of crop residue management on productivity and phosphorus requirement of wheat in rice–wheat system. The experiment comprised of six crop residue management practices as the main treatment factor with three levels (0, 30 and 60 kg P2O5 ha–1) of phosphorus fertilizer as sub-treatments. Significant improvement in soil aggregation, bulk density, and infiltration rate was observed under residue management (retention/incorporation) treatments compared to residue removal or residue burning. Soil organic carbon (SOC), available nutrient content (N, P, and K), microbial count, and enzyme activities were also significantly higher in conservation tillage and residue-treated plots than without residue/burning treatments. The residue derived from both crops when was either retained/incorporated improved the soil organic carbon (0.80%) and resulted in a significant increase in SOC (73.9%) in the topsoil layer as compared to the conventional practice. The mean effect studies revealed that crop residue management practices and phosphorus levels significantly influenced wheat yield attributes and productivity. The higher grain yield of wheat was recorded in two treatments, i.e. the basal application of 60 kg P2O5 ha–1 without residue incorporation and the other with half the P-fertilizer (30 kg P2O5 ha–1) with rice residue only. The grain yield of wheat where the rice and wheat residue were either retained/incorporated without phosphorus application was at par with 30 and 60 kg P2O5ha–1. Phosphorus levels also significantly affected wheat productivity and available P content in the soil. Therefore, results suggested that crop residue retention following the conservation tillage approach improved the yield of wheat cultivated in the rice–wheat cropping system.

National Category
Agricultural Science
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-103989 (URN)10.1038/s41598-024-51399-8 (DOI)38228839 (PubMedID)2-s2.0-85182460201 (Scopus ID)
Note

Validerad;2024;Nivå 2;2024-02-23 (signyg);

Funder: Department of Biotechnology, Ministry of Science and Technology (BT/PR31684/BIC/101/1205/2019);

Full text license: CC BY

Available from: 2024-01-29 Created: 2024-01-29 Last updated: 2024-02-23Bibliographically approved
El Jery, A., Alawamleh, H. S., Sami, M. H., Abbas, H. A., Sammen, S. S., Ahsan, A., . . . Al-Ansari, N. (2024). Isotherms, kinetics and thermodynamic mechanism of methylene blue dye adsorption on synthesized activated carbon. Scientific Reports, 14(1), Article ID 970.
Open this publication in new window or tab >>Isotherms, kinetics and thermodynamic mechanism of methylene blue dye adsorption on synthesized activated carbon
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2024 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 14, no 1, article id 970Article in journal (Refereed) Published
Abstract [en]

The treatment of methylene blue (MB) dye wastewater through the adsorption process has been a subject of extensive research. However, a comprehensive understanding of the thermodynamic aspects of dye solution adsorption is lacking. Previous studies have primarily focused on enhancing the adsorption capacity of methylene blue dye. This study aimed to develop an environmentally friendly and cost-effective method for treating methylene blue dye wastewater and to gain insights into the thermodynamics and kinetics of the adsorption process for optimization. An adsorbent with selective methylene blue dye adsorption capabilities was synthesized using rice straw as the precursor. Experimental studies were conducted to investigate the adsorption isotherms and models under various process conditions, aiming to bridge gaps in previous research and enhance the understanding of adsorption mechanisms. Several adsorption isotherm models, including Langmuir, Temkin, Freundlich, and Langmuir–Freundlich, were applied to theoretically describe the adsorption mechanism. Equilibrium thermodynamic results demonstrated that the calculated equilibrium adsorption capacity (qe) aligned well with the experimentally obtained data. These findings of the study provide valuable insights into the thermodynamics and kinetics of methylene blue dye adsorption, with potential applications beyond this specific dye type. The utilization of rice straw as an adsorbent material presents a novel and cost-effective approach for MB dye removal from wastewater.

Place, publisher, year, edition, pages
Springer Nature, 2024
National Category
Water Treatment
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-103905 (URN)10.1038/s41598-023-50937-0 (DOI)38200095 (PubMedID)2-s2.0-85181922133 (Scopus ID)
Funder
Luleå University of Technology
Note

Validerad;2024;Nivå 2;2024-02-26 (signyg);

Funder: Deanship of Scientific Research at King Khalid University (R.G.P.2/43/44);

Full text license: CC BY;

For correction, see: El Jery, A., Alawamleh, H.S., Sami, M.H. et al. Publisher Correction: Isotherms, kinetics and thermodynamic mechanism of methylene blue dye adsorption on synthesized activated carbon. Sci Rep 14, 4778 (2024). https://doi.org/10.1038/s41598-024-55385-y

Available from: 2024-01-24 Created: 2024-01-24 Last updated: 2024-03-18Bibliographically approved
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