Adsorption of hazardous crystal violet dye by almond shells and determination of optimum process conditions by Taguchi method

2017 ◽  
Vol 88 ◽  
pp. 189-199 ◽  
Author(s):  
Ali Goksu ◽  
Mehmet Kayra Tanaydin
Keyword(s):  
Taguchi Method ◽  
Crystal Violet ◽  
Optimum Process ◽  
Process Conditions ◽  
Crystal Violet Dye

scholarly journals Bathurst Burr (Xanthium spinosum) Powder—A New Natural Effective Adsorbent for Crystal Violet Dye Removal from Synthetic Wastewaters

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5861
Author(s):  
Giannin Mosoarca ◽  
Cosmin Vancea ◽  
Simona Popa ◽  
Sorina Boran
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Taguchi Method ◽  
Size Distribution ◽  
Crystal Violet ◽  
Dye Removal ◽  
Adsorption Process ◽  
Distribution Analysis ◽  
Order Kinetic ◽  
Crystal Violet Dye

A new natural adsorbent material, Bathurst burr powder, was used to remove crystal violet dye from synthetic wastewaters. Particle size distribution and SEM and FTIR analyses were performed to characterize it. The effect of the operational adsorption process parameters (pH, ionic strength, initial dye concentration, adsorbent dose, contact time, temperature) onto the adsorption process was evaluated in a batch system. Equilibrium, kinetic, and thermodynamic studies were performed in order to understand the adsorption process. Taguchi method and ANOVA test were used to optimize the dye adsorption conditions and to establish the percentage contribution of each factor, respectively. The accuracy of the Taguchi prediction method was analyzed by correlating the predicted dye removal efficiency with the experimentally determined one. The particle size distribution analysis showed that 82.15% of the adsorbent particles have an average size below 0.5 mm. The adsorption process followed the Langmuir isotherm and pseudo-second order kinetic model. Maximum adsorption capacity value (164.10 mg·g−1) was higher compared to many similar adsorbents. The process was endothermic, spontaneous, and favorably involving a physisorption mechanism. The Taguchi method showed that the most influential controllable factor was pH (65% contribution in adsorption efficiency) and the data analysis indicates a very good accuracy of the experimental design (R2 = 0.994). The obtained results demonstrated that Bathurst burr powder can be used as a cheap and efficient adsorbent for crystal violet dye removal from aqueous solution.

Standard Simple of Tin Bronze for Casting Develepment

2014 ◽  
Vol 1004-1005 ◽  
pp. 1186-1192
Author(s):  
Yan Song Li ◽  
Da Wei Wang
Keyword(s):  
Reference Materials ◽  
Standard Sample ◽  
National Standard ◽  
Optimum Process ◽  
Process Conditions ◽  
National Reference ◽  
Data Analyses ◽  
Tin Bronze ◽  
Standard Values

The development of standard simple of tin bronze for casting is presented,design of composition, selection melting temperature 1150 °C, put into 0.2m3/kg argon gas, stirring with 100rpm for 1min, keeping temperature for 30min as the optimum process conditions, coarse and fine tests of homogeneity with data analyses, determination of standard values and standard deviation. The homogeneity and standard values of samples meet the national standard GB/T15000 and YS/T409-1998. The standard sample series has ratification as National Reference Materials (GSB 04-2707-2011) by National Technical Commission on Reference Materials.

Using Taguchi method to determine optimum process conditions for flue gas desulfurization through an amine scrubber

2013 ◽  
Vol 16 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Hossein Mehrara ◽  
Behrooz Roozbehani ◽  
Mohammad Reza Shishehsaz ◽  
Mojtaba Mirdrikvand ◽  
Saeedeh Imani Moqadam
Keyword(s):  
Taguchi Method ◽  
Flue Gas ◽  
Flue Gas Desulfurization ◽  
Optimum Process ◽  
Process Conditions

Determination of optimum process conditions for the extraction and separation of zirconium and hafnium by solvent extraction

2008 ◽  
Vol 90 (2-4) ◽  
pp. 115-120 ◽  
Author(s):  
M. Taghizadeh ◽  
R. Ghasemzadeh ◽  
S.N Ashrafizadeh ◽  
K. Saberyan ◽  
M. Ghanadi Maragheh
Keyword(s):  
Solvent Extraction ◽  
Optimum Process ◽  
Process Conditions ◽  
Extraction And Separation
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