Reactive blue 19

Open Access Article

1 - Investigation on the Efficiency of Activated Carbon Produced from Grapes Wood for the Removal of Reactive Blue 19 and Reactive Red 198 dyes from Aqueous Solution- Equilibrium and Kinetic Studies
Mehran Bijari Zohrah Alimohammadi Habibilah younesi Nader Bahramifar

10.30495/jest.2018.22572.3163

Background and Purpose: Reactive dyes are the most commonly used dyes in textile industry. During the dyeing process about 60 to 70 percent of consumer dye is fixed on the fibers. So about 10-15 % of consumed reactive dyes enters into the wastewater and causes environme More

Background and Purpose: Reactive dyes are the most commonly used dyes in textile industry. During the dyeing process about 60 to 70 percent of consumer dye is fixed on the fibers. So about 10-15 % of consumed reactive dyes enters into the wastewater and causes environmental problems. The aim of this study was to remove Reactive Blue 19 and Reactive Red 198 dyes using activated carbon made from waste of tree pruning grapes in a batch system.Materials and Methods: In this study, activated carbon were synthesized with phosphoric acid in a ratio of 1: 2 at 400 C °. Also the optimum conditions for maximum adsorption of reactive Blue 19 and Red 198 dyes was determined (pH=2, adsorption dose= 0.05 g/l, dye concentration = 300 mg/l, temperature = 60°C, solution volume = 200 mL and contact time= 120 min).Finding: Batch adsorption results showed that activated carbon sample with a surface area 1950 m2/g and total pore volume 1.588 cm3/g and 51 percent pore size distribution in the range of micro-hole with the maximum adsorption capacity 1154 mg/g for Reactive Blue19 and 431 mg/g for Reactive Red 198 (In optimum condition) has great potential for the removal of dyes. Experimental data for Reactive Blue 19 are more compliance with Freundlich model and experimental data for Reactive Red 198 are more compliance with Langmuir model. Adsorption of dyes also be followed pseudo-second-order kinetic model.Discussion and Conclusion: The study showed activated carbon produced from annual pruning vineyards waste has high potential in the treatment of textile wastewater Manuscript profile

Open Access Article

2 - Study on the effective process parameters simultaneously for degradation of Reactive Blue 19 dye from contaminated water by TiO2/Fe2O3 supported on clinoptilolite
Arsou Arimi Mehrdad Farhadian Alireza Solaimany nazar Nila Davari

10.22034/jest.2020.22130.3118

Background and Objective: In this study, a nanophotocatalyst with more effective efficiency was synthesized by doping of TiO2 and Fe2O3 nanoparticles supported on natural zeolite. Main and interacting factors in the process and determining optimum operating conditions d More

Background and Objective: In this study, a nanophotocatalyst with more effective efficiency was synthesized by doping of TiO2 and Fe2O3 nanoparticles supported on natural zeolite. Main and interacting factors in the process and determining optimum operating conditions degradation efficiency Reactive Blue 19 dye degradation efficiency were investigated. Method: Synthesized nanophotocatalyst was characterized by XRD, XRF, FT-IR, FE-SEM and EDX analyses. Efficiency of the nanophotocatalyst for the degradation of Reactive Blue 19 dye with UV lamp at 254 nm wavelength was studied via Taguchi method and the parameters were chosen as following: pH (2-7), dye concentration (50-200 mg/l), irradiation time (30-120 min), and nanophotocatalyst concentration (0.5-1.5 g/l). Findings: pH, dye concentration, and irradiation time were the most effective factors in these experiments respectively. The complete degradation of contaminant was achieved at optimal conditions as follows: dye concentration=50 mg/l, irradiation time=120 min, pH=2 and nanophotocatalyst concentration=1.5 g/l. Discussion and Conclusions: This study showed that the synthesized Nano photo catalyst has acceptable efficiency for the degradation of a non-biodegradable pollutant. Manuscript profile

Open Access Article