Avocado seed powder: characterization and its application for crystal violet dye removal from aqueous solutions

2015 ◽  
Vol 57 (34) ◽  
pp. 15873-15888 ◽  
Author(s):  
Alexandre Bazzo ◽  
Matthew A. Adebayo ◽  
Silvio L.P. Dias ◽  
Eder C. Lima ◽  
Júlio C.P. Vaghetti ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Crystal Violet ◽  
Dye Removal ◽  
Powder Characterization ◽  
Crystal Violet Dye ◽  
Avocado Seed

scholarly journals Application of the Natural Cellulosic Supports for the Treatment of the Industrial Effluents

2021 ◽  
Vol 44 (3) ◽  
pp. 48-55
Author(s):  
Andreea BONDAREV
Keyword(s):  
Aqueous Solutions ◽  
Crystal Violet ◽  
Dye Removal ◽  
Agricultural Waste ◽  
Beech Wood ◽  
Aqueous Media ◽  
Industrial Effluents ◽  
Chemically Modified ◽  
Wood Sawdust ◽  
Crystal Violet Dye

Wastewater treatment is one of the most important concerns of the research studies in the field of environmental protection. The current study relates to the removal of Crystal violet dye from aqueous solutions through adsorption experiments onto natural cellulosic supports. Various waste materials that have in their composition lignocellulose are adsorbent supports with low costs for the removal of heavy metal ions and dyes from aqueous solutions. The use of chemically modified sawdust to obtain an inexpensive adsorbent for removing the Crystal violet dye (CV) from synthetic aqueous solutions has been presented in this research paper. The influence of some important parameters such as: initial dye concentration, adsorbent dose, contact time and temperature on adsorption efficiency for this dye removal have been studied. The Freundlich, Langmuir and Temkin mathematical models have been used to evaluate the data of Crystal violet adsorption from aqueous media using wood sawdust. The research study shows that beech wood sawdust (Fagus sylvatica), as an agricultural waste which is readily available and relatively inexpensive has the potential to be an applicable alternative adsorbent for Crystal violet dye removal from industrial effluents.

scholarly journals Efficient removal of crystal violet dye from aqueous solutions by vitreous tuff mineral

2014 ◽  
Vol 35 (12) ◽  
pp. 1508-1519 ◽  
Author(s):  
A. Blanco-Flores ◽  
A. Colín-Cruz ◽  
E. Gutiérrez-Segura ◽  
V. Sánchez-Mendieta ◽  
D.A. Solís-Casados ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Crystal Violet ◽  
Efficient Removal ◽  
Crystal Violet Dye

scholarly journals Removal of Crystal Violet Dye from Aqueous Solutions onto Date Palm Fiber by Adsorption Technique

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Mashael Alshabanat ◽  
Ghadah Alsenani ◽  
Rasmiah Almufarij
Keyword(s):  
Crystal Violet ◽  
Date Palm ◽  
Dye Removal ◽  
Adsorption Process ◽  
Maximum Adsorption Capacity ◽  
Order Model ◽  
Date Palm Fibers ◽  
Crystal Violet Dye ◽  
Pseudo Second Order ◽  
Influence Of Ph

The adsorption of crystal violet (CV) onto date palm fibers (DPFs) was examined in aqueous solution at 25°C. The experimental maximum adsorption capacity value was0.66×10−6. Langmuir, Freundlich, Elovich and Temkin models were applied to describe the equilibrium isotherms. The influence of pH and temperature on dye removal was evaluated. The percentage removal of CV dye by adsorption onto DPF at different pH and temperatures showed that these factors play a role in the adsorption process. Thermodynamic analysis was performed, and the Gibbs free energyΔGο, enthalpy changeΔHο, and entropyΔSοwere calculated. The negative values ofΔGοindicate spontaneous adsorption. The negative value ofΔHοindicates that the interaction between CV and DPF is exothermic, and the positive value ofΔSοindicates good affinity between DPF and CV. The kinetic data were fitted to a pseudo-second-order model.

scholarly journals BIOSORPTION OF CRYSTAL VIOLET DYE FROM AQUEOUS SOLUTIONS USING NATURAL BIOSORBENTS

2017 ◽  
Vol 1 (2) ◽  
pp. 48-61
Author(s):  
A. S. Rashmi ◽  
◽  
P. Sahithi ◽  
P. Raja Rao ◽  
◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Crystal Violet ◽  
Crystal Violet Dye
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