The Application of Response Surface Methodology for Lead Ion Removal from Aqueous Solution Using Intercalated Tartrate-Mg-Al Layered Double Hydroxides

Yasin, Yamin; Mohamad, Maszlin; Ahmad, Fauziah

doi:10.1155/2013/937675

Cited by 14 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figures 8 and 9 displayed the surface plots of the expected response of the removal percentage of Na + and BO 3 −3 by Ca silicate-PO 4 NPs against two of the four studied parameters (pH, concentrations, contact time, and temperature); the other two parameters were set to be at the medium values. According to Yasin et al (2013), the diagram surface's height value determines the expected removal percentage response. Table 10, produced from the Minitab statistical software, displayed the anticipated optimum conditions (pH, concentrations, contact time, and temperature) for the removal percentage of Na + cation and BO 3 −3 .…”

Section: Discussionmentioning

confidence: 99%

Effect of calcium silicate nanoparticles applications on salt affected soils environmental conditions

Eissa

2024

Egypt.J. Soil Sci.

View full text Add to dashboard Cite

N THE PRESENT study, various calcium silicate nanoparticles (NPs) were examined to decrease the impact of salinity on the grown plants by adsorbing Na + and borate (BO 3 −3 ) from water and soil. The Ca silicate was prepared using a green synthesis technique and subsequently activated by different acids, such as HNO 3 and H 3 PO 4 , producing Ca silicate-NO 3 NPs and Ca silicate-PO 4 NPs, respectively. The characterization of the prepared samples was conducted by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS). The removal of Na + and BO 3 −3 from solutions was examined by activated calcium silicate NPs, considering different factors such as Na + and BO 3 −3 concentrations, adsorption time, solution pH, and temperature. The results highlighted that the maximum removal of Na + (18.78%) was achieved by using Ca silicate NPs at an equilibrium contact time of 6 h, a concentration of 20 ppm, a pH of 8.1, and a temperature of 298 K. For BO 3 −3 , the maximum removal of (22.47%) was observed at an equilibrium contact time of 6 hours, a concentration of 54.54 ppm, a pH of 6.08, and a temperature of 308.5 K. Freundlich and Langmuir isotherm models were utilized to analyze the experimental data. According to the findings, the Langmuir isotherm model more accurately characterized the experimental data. The adsorption kinetics were studied using the pseudofirst-order and pseudo-second-order models, revealing that the pseudo-second-order model best explained the adsorption kinetics. Furthermore, the study assessed the application of three levels (0, 4, and 8 g pot -1 ) of Ca silicate NPs, Ca silicate-NO 3 NPs, and Ca silicate-PO 4 NPs to the dill plants (Anethum graveolens L.). Evaluation parameters include fresh and dry weight, Na, B, Ca, and Si concentrations, and plant tissue trace elements. A significant effect was observed between the concentrations of Na + in the plant and calcium silicate NPs additives. Regarding boron, adding calcium silicate reduced plants' absorbed amounts.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of calcium silicate nanoparticles applications on salt affected soils environmental conditions

Eissa

2024

Egypt.J. Soil Sci.

View full text Add to dashboard Cite

show abstract

“…Response Surface Methodology (RSM) is a technique used in this work to study the relationships between one or more measured responses on the one hand and a number of input factors on the other (9) . RSM can be represented in three dimensions showing the relationship between response and factors (10) . The estimated response in the composite rotatable design at a given point has a value which is dependent only on the distance of that point from the center of the design and not on the direction (11) fig (3).…”

Section: Figure (1) Deficiency and Toxicity Of Heavy Metalsmentioning

confidence: 99%

Studying the Uptake of Toxic Metals by Plants using New Mathematical Modeling

Kharnoob¹,

Hasan²

2023

Tikrit J. Pure Sci.

View full text Add to dashboard Cite

Two plants species were used to study the uptake of heavy metals by plants; these were Lolium perenne and Cock's Foot. The species were grown in Hoagland's solution with double concentration of phosphate for one week; the roots species were cut and grown in Hoagland's solution without phosphate to prevent precipitation of any metal phosphate. Four experiments were run with a composite rotatable design with three variables and at five levels (-1.68,-1,o,+1,+1.68) was used. The metals were added as metal nitrate to Hoagland's solution in which the plants are grown on a logarithmic scale and after one week of grown the roots and shoots of plant were cut and digested with concentrated nitric acid and examined for metals by atomic absorption spectrophotometer. This research proved that some elements increased the absorption of other elements in growth solution to the shoot through root while other elements interfere the absorption phenomena for example zinc effects on absorption of copper

show abstract

“…The primary goal of using RSM is to identify the optimum operating parameters for the process or an area that complies with the operating requirements [25]. By integrating RSM with a central composite design (CCD) approach to optimize all the influencing factors simultaneously, the limitations of standard analytical optimization methods may be completely removed [26].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Modeling Study on the Removal of Mn, Fe, and Zn from Fiberboard Industrial Wastewater Using Modified Activated Carbon

et al. 2023

View full text Add to dashboard Cite

In this work, the use of agricultural waste from oil palm petioles (OPP) as a raw material for the production of activated carbon (AC) and its characterization were examined. By soaking these chars in nitric acid (HNO3) and potassium hydroxide (KOH) at a 10% concentration, AC with favorable high-porosity carbons was generated. To maximize AC synthesis, the AC was pyrolyzed at 460, 480, and 500 °C temperatures for 20 min. Based on micrographs of formed pores and surface functional groups, 480 °C carbonization temperature on both chemical HNO3 and KOH was shown to be the best. The FTIR measurements reveal that chemical activation successfully transformed the raw material into AC. Moreover, FESEM micrographs show the pores and cavities of the prepared AC achieve a high surface area. This is further supported by BET results of HNO3 OPP AC and KOH OPP AC with surface areas of 883.3 and 372.4 m2/g, respectively, compared with the surface area of raw OPP of 0.58 m2/g. Furthermore, the tests were revealed by an optimization model, namely response surface methodology (RSM), using a central composite design (CCD) technique. The findings showed that all three parameters (pH, time, and dose) had a substantial impact on the removal of Zn, Fe, and Mn. Analysis of variance (ANOVA) and analytical error indicated that the models were accurate, with a low error value and a high R2 > 0.9. Remarkably, the good correlation between actual and predicted removal values showed that the modified activated carbon is a promising adsorbent for heavy metal removal from wastewater.

show abstract

The Application of Response Surface Methodology for Lead Ion Removal from Aqueous Solution Using Intercalated Tartrate-Mg-Al Layered Double Hydroxides

Cited by 14 publications

References 20 publications

Effect of calcium silicate nanoparticles applications on salt affected soils environmental conditions

Effect of calcium silicate nanoparticles applications on salt affected soils environmental conditions

Studying the Uptake of Toxic Metals by Plants using New Mathematical Modeling

Experimental and Modeling Study on the Removal of Mn, Fe, and Zn from Fiberboard Industrial Wastewater Using Modified Activated Carbon

Contact Info

Product

Resources

About