Optimization of Silica Extraction from Rice Husk Using Response Surface Methodology and Adsorption of Safranin Dye

Gün, Melis; Arslan, Hüdaverdi; Saleh, Mohammed; Yalvaç, Mutlu; Dizge, Nadir

doi:10.1007/s41742-022-00399-5

Cited by 19 publications

(7 citation statements)

References 57 publications

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“…Thus, the model is found to be adequate. Similar results had been discussed and concerned by previous researchers [22,26,27,30]. The fourth analysis is the interaction of factors involved in this analysis which is depicted in the three-dimensional (3D) response surface plot.…”

Section: Resultssupporting

confidence: 76%

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Response Surface Methodology Approaches in Producing Amorphous Silica from Rice Straw Ash

Jamaluddin,

Saad,

Masjuki

et al. 2023

Constr.

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A large amount of rice straw is produced as crop residue from rice production as an underutilization waste material. The open burning of rice straw can lead to environmental pollution by forming an abundant amount of rice straw ash (RSA) and exposing harmful gases to the atmosphere. Thus, RSA can be used as a cement replacement material due to its high amount of silica. Silica is a helpful additive to cement mix by accelerating the hydration process of cement because of its high reactivity and improving mortar performance. This study focuses amount of high silica of RSA in modified concrete through thermochemical pretreatment via response surface methodology (RSM). The factors involved in the pretreatment of RSA are 0.01M – 0.1M HCl hydrochloric acid, 1 – 3 hours soaking duration, and 60 - 80℃ soaking temperature, and a response is the percentage of reactive compound content (SiO2, Al2O3, and Fe2O3). Therefore, central composite design (CCD) in the RSM and the analysis of variance (ANOVA) have been used to evaluate the interaction between the factors and response, then simulated and further assess the accuracy of the model to achieve the accurate prediction. As a result, RSM observed that the optimum silica amount in the treated RSA (98.34%) was produced using parameters of 0.06 M HCl, 2 hours of soaking duration, and 70℃ soaking temperature in the pretreatment process. After that, it is followed by a burning process at a controlled temperature and a grinding process to produce treated RSA. The prediction given by the RSM was not the sole result but was proved through X-Ray Fluorescence (XRF) analysis. The result of XRF analysis obtained for each model with the same value of each factor (HCl concentration = 0.06 M, soaking duration = 2 hours, and soaking temperature = 70℃) is more than 97.00% and falls between the prediction index range. Thus, the model is validated since the actual experimental result is within the expected range for any involved factor. Hence, the treated RSA was considered a high-quality pozzolanic material incorporated in the mortar production.

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Section: Resultssupporting

confidence: 76%

“…[21,28,29] also used design expert software for the DOE purpose. RSM model is collecting experimental data on the response of interest, building an RSM model and validating its correctness through analysis of variance (ANOVA) analysis, and finally optimizing the parameter to fulfill the stated ideal response variables [30].…”

Section: Methodsmentioning

confidence: 99%

Response Surface Methodology Approaches in Producing Amorphous Silica from Rice Straw Ash

Jamaluddin,

Saad,

Masjuki

et al. 2023

Constr.

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“…Pore size is another characteristic of the adsorbent that determines its adsorbent properties. [ 20 ] The detected pore size of WWP was 304.267 Å. The isotherm's shape and the hysteresis model may be used to qualitatively anticipate the sorts of pores that are present in the adsorbent and offer important information about the physical absorption process, solid–gas interactions, and isotherm shape.…”

Section: Resultsmentioning

confidence: 99%

Use of welding powder as a low‐cost adsorbent for waste motor oil removal

Eskikaya,

Belibagli,

Bouchareb

et al. 2024

CLEAN Soil Air Water

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Waste motor oil (WMO), which has no stable form or structure, causes major environmental problems and damage to the ecosystem once it is disposed to the environment. Because of the high toxicity of contents in such effluent, it must be treated before being discharged into the receiving environment. In recent years, the valorization and the use of waste materials to remove toxic pollutants is of great importance to researchers and diverse industries. In this study, the usability of waste welding powder (WWP) as an adsorbent for waste oil removal was investigated. For this purpose, investigating the usability of material, which is generated as industrial waste, in wastewater treatment will lead to the evaluation of waste. The effects of temperature, pH, WWP amount, and initial WMO amount were investigated. According to the adsorption studies, 1 g WWP/L of the processed adsorbent was able to effectively remove 95.05% of WMO (100 mg) at a pH of 2 at 30°C. Stereo microscopy images showed a large amount of oil adsorbed on the WWP surface. The different WWP properties were determined by adsorption isotherm (Harkins–Jura), kinetic (pseudo‐second order), and thermodynamic (ΔG: −5.1 kJ mol–1) experiments. It is thought that WWP, which is a low‐cost and waste material, can be used as a promising adsorbent in WMO removal.

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“…The results obtained from the Bangham model (Table 6) confirm the IDM results. Many researchers detected a similar mechanism for various adsorbents (Gun et al, 2022;Isik et al, 2022).…”

Section: Kineticmentioning

confidence: 86%

Leonardite powder as an efficient adsorbent for cationic and anionic dyes

Arslan

Saleh

Bilici

et al. 2022

Water Environment Research

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This paper aims to investigate the uses of leonardite powder (LP) as an effective adsorbent for the removal of basic red 18 (BR18) and reactive red 180 (RR180) dyes. LP was characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Zeta potential, Brunauer-Emmett-Teller (BET) analysis, Fourier transform infrared spectroscopy (FTIR), and X-ray fluorescence (XRF). The adsorption process was assessed based on pH, size and the amount of the adsorbent, BR18 and RR180 concentration, and the contact time. BR18 dye was completely adsorbed onto the LP (the removal efficiency equals 100%) after 45 min at the optimum condition (original pH [6.5], the particle size of 45 μm, the adsorbent dose of 0.25 g/L, and the initial concentration of 10 mg/L). For RR180, the maximum removal efficiency (74%) was obtained when 1 g/L LP with 45 um size was added to an RR180 solution of 10 mg/L concentration. Temkin isotherm was used to explain the adsorption of BR18. In contrast, RR180 adsorption was described by the Freundlich model. The adsorptions of both dyes followed the pseudosecond-order kinetics. The reusability of the LP was assessed. For BR18, the efficiency decreased to 96% in the second cycle and reached 42% in the fifth cycle. In RR180, LP was not able to be reused efficiently. As a result, the LP ability for BR18 removal is higher than the RR180 in terms of uptake and reusability. Practitioner Points• BR18 and RR180 dyes elimination was carried out with leonardite powder (LP).• The maximum removal efficiencies for BR18 and RR180 were 100% and 74%, respectively.• The LP ability for BR18 removal is higher than the RR180 in terms of uptake and reusability.

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Optimization of Silica Extraction from Rice Husk Using Response Surface Methodology and Adsorption of Safranin Dye

Cited by 19 publications

References 57 publications

Response Surface Methodology Approaches in Producing Amorphous Silica from Rice Straw Ash

Response Surface Methodology Approaches in Producing Amorphous Silica from Rice Straw Ash

Use of welding powder as a low‐cost adsorbent for waste motor oil removal

Leonardite powder as an efficient adsorbent for cationic and anionic dyes

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