Biodegradation of dye solution containing Malachite Green: Optimization of effective parameters using Taguchi method

2007 ◽  
Vol 143 (1-2) ◽  
pp. 214-219 ◽  
Author(s):  
N. Daneshvar ◽  
A.R. Khataee ◽  
M.H. Rasoulifard ◽  
M. Pourhassan
Keyword(s):  
Taguchi Method ◽  
Malachite Green ◽  
Effective Parameters

Evaluation and Optimization of Effective Parameters on Zinc Sulfate Flotation by the Taguchi Method

Silicon ◽  
2016 ◽  
Vol 9 (5) ◽  
pp. 695-701 ◽  
Author(s):  
Nasrollah Najibi Ilkhechi ◽  
Rezvan Yavari ◽  
Shima Barakan
Keyword(s):  
Taguchi Method ◽  
Zinc Sulfate ◽  
Effective Parameters

scholarly journals An Optimization of the New Die Design of Sheet Hydroforming by Taguchi Method

2011 ◽  
Vol 337 ◽  
pp. 294-299
Author(s):  
Morteza Hosseinzadeh ◽  
S. Ali Zamani ◽  
Ali Taheri
Keyword(s):  
Taguchi Method ◽  
Optimal Combination ◽  
Die Design ◽  
Effective Parameters ◽  
Taguchi Optimization ◽  
Sheet Hydroforming ◽  
Confirmation Test ◽  
Die Set ◽  
Hydroforming Process ◽  
Optimization Methodology

During the last few years, several sheet hydroforming processes have been introduced. Despite the advantages of these methods, they have some limitations. Of the processes, the two main ones are the standard hydroforming and hydromechanical deep drawing. A new sheet hydroforming die set was proposed that has the advantages of both processes and eliminates their limitations. In this method, a polyurethane plate was used as a part of the die-set to control the blank holder force. This paper outlines the Taguchi optimization methodology, which is applied to optimize the effective parameters in forming cylindrical cups by the new die set of sheet hydroforming process. The process parameters evaluated in this research are polyurethane hardness, polyurethane thickness, forming pressure path and polyurethane hole diameter. The design of experiments based upon L9 orthogonal arrays by Taguchi was used and analysis of variance (ANOVA) was employed to analyze the effect of these parameters on the forming pressure. The analysis of the results showed that the optimal combination for low forming pressure is harder polyurethane, bigger diameter of polyurethane hole and thinner polyurethane. Finally, the confirmation test was derived based on the optimal combination of parameters and it was shown that the Taguchi method is suitable to examine the optimization process.

scholarly journals Influences of Shot Peening Parameters on Mechanical Properties and Fatigue Behavior of 316 L Steel: Experimental, Taguchi Method and Response Surface Methodology

2021 ◽  
Author(s):  
Erfan Maleki ◽  
Okan Unal ◽  
Kazem Reza Kashyzadeh
Keyword(s):  
Response Surface Methodology ◽  
Taguchi Method ◽  
Response Surface ◽  
Shot Peening ◽  
Effective Properties ◽  
Fatigue Behavior ◽  
Experimental Tests ◽  
Effective Parameters ◽  
Wide Range ◽  
Aisi 316 L

AbstractSevere plastic deformation methods like shot peening (SP) are known as efficient surface treatments and grain refining processes which afford more effective properties in metallic materials. In the current research, a comprehensive study was carried out on SP of AISI 316 L steel. It included 42 different SP treatments with a wide range of Almen intensities of 12–27 A and various coverage degrees (100%–1500%). Several experimental tests were conducted in order to explore the microstructure, grain size, surface topography, hardness, wettability, and residual stresses of the specimens. Next, two different approaches including Taguchi method (TM), and response surface methodology (RSM) were deployed for modeling, analysis, and optimization. RSM and TM were used to examine the influence of the effective parameters. Based on the optimized results, the fatigue behavior of the selected treatments was investigated experimentally in both smooth and notched specimens. Graphical abstract

scholarly journals Application of Taguchi method and response surface methodology into the removal of malachite green and auramine-O by NaX nanozeolites

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Siroos Shojaei ◽  
Saeed Shojaei ◽  
Shahab S. Band ◽  
Amir Abbas Kazemzadeh Farizhandi ◽  
Milad Ghoroqi ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Taguchi Method ◽  
Response Surface ◽  
Malachite Green ◽  
Dye Removal ◽  
Environmental Water ◽  
Operating Conditions ◽  
Auramine O ◽  
Quadratic Models ◽  
Maximum Removal

AbstractIn the present study, the simultaneous removal of malachite green (MG) and auramine-O (AO) dyes from the aqueous solution by NaX nanozeolites in a batch system is investigated. Taguchi method and response surface methodology (RSM) were used to optimize and model dye removal conditions. In order to do so, the effect of various factors (dyes concentration, sonication time, ionic strength, adsorbent dosage, temperature, and pH of the solution) on the amount of dye removal was evaluated by the Taguchi method. Then, the most important factors were chosen and modeled by the RSM method so as to reach the highest percentage of dye removal. The proposed quadratic models to remove both dyes were in good accordance with the actual experimental data. The maximum removal efficiencies of MG and AO dyes in optimal operating conditions were 99.07% and 99.61%, respectively. Also, the coefficients of determination (R2) for test data were 0.9983 and 0.9988 for MG and AO dyes, respectively. The reusability of NaX nanozeolites was evaluated during the adsorption process of MG and AO. The results showed that the adsorption efficiency decreases very little up to five cycles. Moreover, NaX nanozeolites were also applied as adsorbents to remove MG and AO from environmental water samples, and more than 98.1% of both dyes were removed from the solution in optimal conditions.

CoFe2O4-TiO2 a Lethal P-n heterogeneous catalyst for malachite green degradation under visible light and optimisation of parameters by the Taguchi Method

2021 ◽  
pp. 1-13
Author(s):  
K.Chandrika Chandrika ◽  
P. N. Anantharamaiah ◽  
R. Hari Krishna ◽  
A. G Jineesh ◽  
T. Niranjana Prabhu
Keyword(s):  
Taguchi Method ◽  
Visible Light ◽  
Heterogeneous Catalyst ◽  
Malachite Green

scholarly journals An Investigation into Acoustic Properties of Lightly Needled Estabragh Nonwovens Using the Taguchi Method

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900 ◽  
Author(s):  
Sanaz Hassanzadeh ◽  
Mohammad Zarrebini ◽  
Hossein Hasani
Keyword(s):  
Taguchi Method ◽  
Absorption Coefficient ◽  
Areal Density ◽  
Laboratory Scale ◽  
Acoustic Properties ◽  
Effective Parameters ◽  
Nonwoven Fabrics ◽  
Noise Absorption ◽  
Wide Acceptance ◽  
Impedance Tube Method

Sound pollution has become an important issue that has been addressed by scientists of various disciplines. Control of sound in areas of transport and building industries is of paramount importance. Textiles are widely used as sound insulators. Among the broad spectrum of textiles, nonwoven fabrics due to their technical merits and wide acceptance are extensively used as sound controlling media. In this work, various blends of polypropylene and naturally grown hollow Estabragh fibers were used to prepare sound absorptive nonwoven layers. The fiber blends were fed to a laboratory scale carding machine. Carded webs were lightly needled on a laboratory scale needling machine. Acoustic properties of needled samples were evaluated using the Impedance tube method. The Taguchi method was used to analyze the effective parameters influencing fabric acoustic properties. Results show that the proportion of Estabragh fibers in the blends strongly affects the noise absorption coefficient (NAC). Frequency is the second effective factor and is followed by nonwoven layer mass (areal density) and punch density, respectively. It was concluded that layers comprised of 100% Estabragh fibers achieved the highest value of NAC. The results also pointed to existence of a direct correlation between noise absorption coefficient and the amount of punch density exerted during needling process. It was found that the increase in the amount punch density resulted in higher values of NAC.

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