eng
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
2019-07-01
12
3
133
144
10.30509/pccc.2019.81551
81551
مقاله پژوهشی
A Comparative Study for the Removal of Methylene Blue Dye from Aqueous Solution by Novel Activated Carbon Based Adsorbents
A. Seidmohammadi
1
G. Asgari
2
A. Dargahi
3
M. Leili
4
Y. Vaziri
5
B. Hayati
6
A.A. Shekarchi
7
A. Mobarakian
8
A. Bagheri
9
S. B. Nazari Khanghah
10
A. Keshavarzpour
11
Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Department of Environmental Health, Khalkhal University of Medical Sciences, Khalkhal, Iran
Department of Pathology and Anatomy, Ardabil University of Medical Sciences, Ardabil, Iran
Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
Department of Dental, Ardabil University of Medical Sciences, Ardabil, Iran
Department of Environmental Health School of Health, Ardabil University of Medical Sciences, Ardabil, Iran
Department of Public Health, Khalkhal University of Medical Sciences, Khalkhal, Iran
This study was conducted to assess the ability of the studied adsorbent, i.e. raw oak fruit hulls and the activated carbon prepared from oak fruit hull for removing the Methylene blue (MB) from aqueous solution. This study was conducted under various effective parameters, e.g., contact time, pH, MB concentration, adsorbent concentration. The optimum amount of each parameter was determined and the isotherm and kinetic studies were also carried out. The results revealed that the best results for MB removal efficiency are observed using the activated carbon prepared from oak fruit hulls. It was also observed that increasing the contact time, pH and adsorbent concentration provides better condition to enhance the dye removal efficiency and increasing the MB, hence reducing the removal efficiency. Furthermore, the results also clarified that the best models to describe the MB adsorption onto the raw oak fruit hulls and activated carbon are the Langmuir model 1 (R2=0.9971) and Langmuir 2 (R2=0.7631), respectively. In addition, the adsorption of MB onto the raw oak fruit hulls and activated carbon are better fitted to pseudo-second-order model and zero-order model, respectively. Finally, it can be concluded that the activated carbon prepared from the raw oak fruit hulls is more valuble than the raw oak fruit hull for removing the MB.
https://pccc.icrc.ac.ir/article_81551_f392ad41b6641e82bfa859910cd5dfb3.pdf
Adsorption
Activated carbon
Oak fruit hull
Methylene blue
Aqueous solution
eng
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
2019-07-01
12
3
145
154
10.30509/pccc.2019.81575
81575
مقاله پژوهشی
Extraction and Antibacterial Activity of Pulicaria Gnaphalodes as a Natural Colorant: Characterization and Application on Wool Fibers
H. Maleki
1
H. Barani
2
Department of Carpet, Faculty of Art, University of Birjand, Birjand, Iran.
Department of Carpet, Faculty of Art, University of Birjand, Birjand, Iran.
Pulicaria gnaphalodes has various biological activities and is used as an herbal plant in traditional medicine. The major components of the aqueous extract of this plant are flavonoids, terpenoids and phenolic compounds which could be a good candidate for dyeing of wool fibers. In this study, the aerial part of Pulicaria gnaphalodes plant was extracted and used for the coloration of wool yarns. Firstly, the chemical components of the Pulicaria gnaphalodes extract were identified using a gas chromatography-mass spectrometer (GC-MS). After that, the effect of dyeing procedure parameters such as mordant concentration, pH of dyeing bath, dyeing duration, and dye concentration was assessed on the color characteristics of the dyed yarn samples. The results and observations indicate that the un-mordanted and alum mordanted dyed samples have a yellow color and their hue angle value is located between Huemax= 89.11° and Huemin=76.49°. The obtained yellow shade at the optimized dyeing condition presented a considerable good washing and light fastness. In addition, the aqueous extract of aerial parts of Pulicaria gnaphalodes presented an inhibitory effect against S. aureus and E. coli bacteria.
https://pccc.icrc.ac.ir/article_81575_b7a6470581ef9ea0b45acc3bf27685ed.pdf
Natural dyeing
yellow color
Antibacterial
Flavonoid
color characteristic
eng
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
2019-07-01
12
3
155
161
10.30509/pccc.2019.81562
81562
مقاله پژوهشی
Bioremediation of Textile Dyes Wastewater: Potential of Bacterial Isolates from a Mining Soils and Wetlands
K. Seifpanahi-Shabani
q.s11063@yahoo.com
1
A. Eyvazkhani
2
P. Heidari
3
Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood, Iran
Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood, Iran
Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Shahrood, Iran.
New bacteria that was provided from contaminated soils surrounding the coal, aluminum, salt mines and wetland separated, synthesized and characterized. The achievements show that this soils and waters have five disposed bacteria consist of Microbacterium SP, Micrococcaceae Bacterium, Planomicrobium SP, Brevndimonas Aurantiaca and Halomonas SP. Secondly, the result of the potential of removal activity study of new bacteria, with respect to basic blue 41 and disperse red 177 dyes are presented. So, in the batch system the influence of pH, bacteria dosage, temperature, dyes initial concentration and time was investigated. Finally, the study of removal mechanism show that the biodegradation is the governing mechanism. So, we can confirmed that these natural and locally available bacteria showed a great efficiency for the removal of dyes from the aqueous solution without any unsafe by-product, also can be utilized for other water pollutants.
https://pccc.icrc.ac.ir/article_81562_7a242fe492695ce61b9ba2fb0965e4ac.pdf
Microbacterium SP
Halomonas SP
Dye biodegradation
Soil and water bacteria
eng
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
2019-07-01
12
3
163
177
10.30509/pccc.2019.81569
81569
Surface Modified Cobalt Ferrite Nanoparticles with Cationic Surfactant: Synthesis, Multicomponent Dye Removal Modeling and Selectivity Analysis
N. M. Mahmoodi
1
J. Abdi
2
Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran
Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran
Herein, magnetic cobalt ferrite nanoparticles (CFNPs) was synthesized and its surface was modified by cationic surfactant (cetyltrimethyl ammonium bromide: CTAB) and its potential to selective removal of dye from multicomponent (ternary) system was investigated. Direct red 31 (DR31), Direct green 6 (DG6) and Direct red 23 (DR23) were used as a model dyes. The characteristics of the synthesized adsorbent (CFNPs-CTAB) nanoparticles were studied using FTIR, SEM, TEM, XRD, and TOC. Selectivity analysis showed that the magnetic adsorbent had selective removal of DR31. A reliable and intelligent model based on Least-Squares Support Vector machine (LS-SVM) was used to present pollutant adsorption efficiency. The presented model illustrates better performance in predicting dye removal efficiency compared to the kinetic models with average absolute percent relative error of 2.024% and correlation coefficients close to unity. Moreover, it was showed that the developed models are capable of simulating the actual physical trend of the dye removal efficiency with variation of adsorbent dosage, initial dye concentration, salt and initial pH of solution. The proposed model could be trustful for predicting the dye removal efficiency from colored wastewater.
https://pccc.icrc.ac.ir/article_81569_7529df82af2ba8ef655c58b05f0eb678.pdf
Synthesis
Cobalt ferrite nanoparticle modification
Surfactant
Ternary system dye removal
Selectivity analysis
Intelligent modelling
eng
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
2019-07-01
12
3
179
190
10.30509/pccc.2019.81574
81574
مقاله پژوهشی
Application of Face-Centered Central Composite Design (FCCCD) in Optimization of Enzymatic Decolorization of Two Azo Dyes: A Modeling vs. Empirical Comparison
S. Kashefi
1
S. M. Borghei
2
N. M. Mahmoodi
3
Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Avenue, Tehran, Iran.
Department of Chemical and Petroleum Engineering, Sharif University of Technology, Azadi Avenue, Tehran, Iran.
Department of Environmental Research, Institute for Color Science and Technology, Tehran, Iran.
Biological treatment, especially enzymatic methods, can be employed for effective and environmental- friendly treatment of dye effluents. Laccase, belonging to the blue multi-copper oxidases category, can oxidize a wide variety of substrates, especially synthetic dyes. In this study, laccase was used to biodegrade two azo dyes, i.e., Direct Red 23 and Acid Blue 92. Before conducting the experiments, the laccase used in this study was enzymatically characterized. Face-centered central composite design (FCCCD) was used to optimize the main parameters of the decolorization process. The optimum conditions to maximize the bio-decolorization process of AB92 were X1=11.85 mg L-1, X2=5.10, and X3=98.37 mg L-1, with a decolorization extent of 92.30%. These conditions for DR23 were X1=17.68 mg L-1, X2=3.70, and X3=97.89 mg L-1, with a decolorization extent of 95.60%. The optimum conditions for both dyes showed that the enzymatic decolorization favored lower dye concentration. Considering the ANOVA analysis data, the synergetic interactions orders were as follow: AB92: dye concentration-enzyme dosage> dye concentration-pH> enzyme dosage-pH; DR23: dye concentration-pH> dye concentration-enzyme dosage> enzyme dosage-pH.
https://pccc.icrc.ac.ir/article_81574_8027f0c371795aec2305b3d9a00ed756.pdf
Laccase
Dye
enzymatic decolorization
central composite design
eng
Institute for Color Science and Technology (ICST)
Progress in Color, Colorants and Coatings
2008-2134
2383-1790
2019-07-01
12
3
191
201
10.30509/pccc.2019.81586
81586
مقاله پژوهشی
Dyeing of Cotton Fabric with Natural Dyes Improved by Mordants and Plasma Treatment
A. Haji
1
Department of Textile Engineering, Yazd University, Yazd, Iran
Nowadays, there is a great tendency for eco-dyeing and finishing of textiles with natural products. several natural dyes have been used for dyeing of protein fibers but a low number have the ability to dye cotton fiber because of low affinity of cellulose to the natural dyes. In this study madder and weld natural colorants were used to dye cotton fabric premordanted with three metallic salts including alum, ferrous sulfate, and copper sulfate. The effects of the concentration of mordant, dyeing temperature, dyeing time and amount of electrolyte on the color strength of dyed samples were investigated. Also, an eco-friendly process, low temperature plasma treatment was employed as a pretreatment to improve the dye exhaustion into the cotton fibers. The fastness properties of cotton samples dyed under different conditions were evaluated and the optimum amount of each variable for obtaining the highest values of color strength and fastness properties in the dyeing of cotton with madder and weld natural dyes was specified.
https://pccc.icrc.ac.ir/article_81586_37695f7210641de6e05a0e07d55f2562.pdf
cotton
Natural Dye
Plasma
Mordant
Fastness properties