Author
A.M. Ghaedi
Bio: A.M. Ghaedi is an academic researcher from Islamic Azad University. The author has contributed to research in topics: Adsorption & Langmuir adsorption model. The author has an hindex of 26, co-authored 42 publications receiving 2017 citations.
Papers
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TL;DR: In this article, the authors used the ANN model for the optimization and modeling of sonication time, amount of sorbent and dyes concentrations to study their simultaneous adsorption based on achievement of minimum mean squared error as criterion.
251 citations
TL;DR: Langmuir as the best model for fitting experimental data relevant to BG and EB removal indicates high, economic and profitable adsorption capacity that supports and confirms its applicability for wastewater treatment.
163 citations
TL;DR: In this article, a multiple linear regression (MLR) model and least square support vector regression (LS-SVM) model with principal component analysis (PCA) was used for preprocessing to predict the efficiency of methylene blue adsorption onto copper oxide nanoparticle loaded on activated carbon (CuO-NP-AC) based on experimental data set achieved in batch study.
128 citations
TL;DR: In this article, the removal of crystal violet dye from aqueous solution by ultrasound assisted adsorption using zinc oxide nanorods loaded on activate carbon as an adsorbent was discussed.
Abstract: The present work discusses the removal of crystal violet dye from aqueous solution by ultrasound assisted adsorption using zinc oxide nanorods loaded on activate carbon as an adsorbent The said adsorbent was prepared and characterized using field emission scanning electron microscopy, X-ray diffraction and Fourier transform infrared analysis The important process parameters, such as initial crystal violet concentration (8–24 mg/L), solution pH (30–70), adsorbent doses (0005–0025 g), and sonication time (2–6 min) were optimized using design of experiments The optimum removal efficiency of crystal violet onto adsorbent was determined as 9982% at pH 70, 0025 g adsorbent dosage, 24 mg/L initial crystal violet concentration and 50 min sonication time Analysis of variance showed a high coefficient of determination ( R 2 = 0992) The present analysis suggests that the predicted values are in good agreement with experimental data Also, the artificial neural network model was used for predicting removal (%) of crystal violet dye based on experimental data Equilibrium data was fitted well with the Langmuir model having maximum adsorption capacity of 11364 mg/g The adsorption of crystal violet followed the pseudo-second order kinetic model This study clearly showed that response surface methodology was one of the appropriate methods to optimize the operating conditions
118 citations
TL;DR: Comparisons according to general criterion confirm the usability of pseudo-second-order kinetic model for explanation of data and higher ability of ANN model compare to the MLR model for prediction of BG adsorption onto ZnS-NP-AC is confirmed.
116 citations
Cited by
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TL;DR: In this paper, a different method is proposed to analyze experimental results and it is employed here to reexamine experimental data taken from the literature, and it appears that the method generally used is flawed and that it unfairly favors pseudo-second order kinetics.
1,164 citations
TL;DR: Criteria for choosing the optimum isotherm model is established through a critical review of different adsorption models and the use of various mathematically error functions such as linear regression analysis, nonlinear regressionAnalysis, and error functions for adsorption data optimization.
1,151 citations
Journal Article•
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TL;DR: Investigations compel the view that the ratio of the vital capacity to the body length, trunk length, chest circumference, surface area or weight or any combination of these measurements, is too variable to admit of any workable standard or normal value.
Abstract: These investigations and several others that have beenpublishedwithin recentyears compel us us to hold the view that the ratio of the vital capacity to the body length, trunk length, chest circumference,surfacearea or weight or any combination of thesemeasurements, is too variable to admit of any workable standardor normal value. On the other hand the vital capacity of each individual, after he had becomeaccustomedto the use of the spirometer,will be found to be subjectto but small variations as long as good health is maintained. Thereseems to beevidenceto show that a reductionin the vital capacityis ofen the first sign of a progressivedamageto the respiratorytissue.
986 citations
28 Sep 2014
TL;DR: This paper presents an experimental study of parameter design and tolerance design for dynamic characteristics in the context of Offline and online quality control.
Abstract: Contents: Variety and Quality. Variability loss and tolerance. Determining tolerances. Tolerance design and experimental design. Offline and online quality control. Parameter design and tolerance design: case study. Experimental design for smaller is better characteristics. Experimental design for larger is better characteristics. Bypassing the S/N ratio: spring experiment. Experimental design for dynamic characteristics.
672 citations