Papers by Baybars Ali Fil
Water and Environment Journal
Environmental Engineering and Management Journal
International Journal of Electrochemical Science, 2018
In this study, the treatment of synthetic wastewater by electro-oxidation method was investigated... more In this study, the treatment of synthetic wastewater by electro-oxidation method was investigated. The experiments were performed in batch mode. As the anode material, Ti/IrO 2 /RuO 2 sieve type anode material was used and stainless steel cathode plates were used as cathode material. The effects of experimental parameters such as initial dye concentration, pH, supporting electrolyte type, supporting electrolyte concentration and current density on the removal efficiency were investigated. NaCl, KCl, Na₂SO₄ and NaNO₃ as support electrolyte type were used. The obtained results showed that color removal optimal conditions are the following: initial pH of about 5, current density of 1.0 mA/cm 2 and supporting electrolyte of 5 mM NaCl. In the most favorable conditions, the dye removal is determined as 99.67%. It can be concluded that electro-oxidation process by Ti/IrO 2 /RuO 2 electrode is very efficient and clean process for reactive dye removal from colored wastewater.
Bulletin of the Chemical Society of Ethiopia
ABSTRACT. In this study, isotherm studies were investigated for the removal of basic orange 2 (BO... more ABSTRACT. In this study, isotherm studies were investigated for the removal of basic orange 2 (BO2) dye on the montmorillonite surface. Two-parameter isotherm models such as Langmir, Freundlich, and Temkin isotherms and Three-parameter isotherm models such as Sips, Toth, and Khan isotherms were calculated by non-linear analysis method. The adsorption capacity at equilibrium was calculated by adding 0.035 g of adsorbent at 10-300 mg/L concentrations to 100 mL of synthetic dyestuff solution at room temperature. According to the results obtained, it was determined that the isotherm data matched the Langmuir isotherm with a regression coefficient of 0.995 from the Two-parameter models, and the Sips isotherm with a regression coefficient of 0.998 from the Three-parameter isotherm models. In addition, according to the results of error analysis, it was determined that the lowest error value fit the HYBRID model. SNE values support the HYBRID model. KEY WORDS: Adsorption, Basic orange 2, ...
International Journal of Environmental Research
Arabian Journal for Science and Engineering
Journal of Electrochemical Science and Technology
In the study, Ni 2 + (nickel) removal from synthetically prepared wastewater by electrocoagulatio... more In the study, Ni 2 + (nickel) removal from synthetically prepared wastewater by electrocoagulation method, which is one of the electrochemical treatment processes, was investigated and parameters such as current density, pH, mixing speed, initial Ni 2 + concentration, supporting electrolyte type and concentration were determined to determine Ni 2 + removal efficiencies effects were studied. Experiment conditions during 30 minutes of electrolysis; the current density was determined as 0.95 mA/cm 2 , the initial pH of the wastewater was 6, the mixing speed was 150 rpm, and the initial nickel concentration was 250 mg/L. The Ni 2 + removal efficiency was obtained as 75.99% under the determined experimental conditions, while the energy consumption was calculated as 3.15 kW-h/m 3. In the experiments, it was observed that the type and concentration of the supporting electrolyte did not have a significant effect on the Ni 2 + removal efficiency. In the trials where the effect of the support electrolyte concentration was examined, the Ni 2 + removal efficiency was 75.99% in the wastewater environment without the supporting electrolyte, while the Ni 2 + removal efficiency was 81.55% when 7.5 mmol/L NaCl was used after the 30-minute reaction, and the energy consumption was 2.15 kW-h/m 3 obtained as. As a result of the studies, it was concluded that the electrocoagulation process can be applied in the treatment of wastewater containing Ni 2 + .
Ion exchange technology is currently the best way to remove heavy metals from water and wastewate... more Ion exchange technology is currently the best way to remove heavy metals from water and wastewater. In this study, we investigated heavy metal ions as cadmium (Cd 2+), nickel (Ni 2+) and zinc (Zn 2+) removal from aqueous solutions using synthetic resin. Batch experiments on the removal efficiency of heavy metal ions at under different conditions such as initial solution pH, stirring speeds, temperatures, initial concentrations and resin dosages of synthetic wastewater solutions were carried out. The maximal exchange levels attained were as follows: 99.76% Cd 2+ , 93.66% Ni 2+ and 83.10% Zn 2+ onto Dowex HCR-S synthetic resin at 293 K, 250 mg L-1 initial metal concentration, ion exchange time of 60 min, 400 rpm stirring speed, pH: 6.0 and 2 g resin dosage. INTRODUCTION Fast industrialization has affected to rise up disposal of heavy metals into the environment. The exceeding increase in the use of the heavy metals over the past few decades has unavoidable consequence in an increased ...
Arabian Journal of Chemistry, 2016
The capacity of synthesized hybrid ion exchanger for removal of rhodamine B dye and Pb +2 ions fr... more The capacity of synthesized hybrid ion exchanger for removal of rhodamine B dye and Pb +2 ions from aqueous solution. The effect of different reaction conditions such as sample dosage, pH, ionic strength, contact time and concentration on removal of rhodamine B dye and lead ions were studied. Experimental results of pH and ionic strength showed that hydrophobic-hydrophobic interactions might be the dominant force of attraction for the rhodamine B and lead ions onto synthesized hybrid exchanger system. Adsorption equilibrium isotherms were analyzed by Langmuir, Freundlich, Dubinin-Radushkevich, Tempkin and Redlich-Peterson and Sips models. Langmuir model was found to show the best fit for experimental data and the maximum adsorption capacity was found to be 82.3 and 182.7 mg g -1 for lead ions and 76.4 and 156.8 mg g -1 for rhodamine B at 20 and 50 o C, respectively. The experimental kinetic of the data were analyzed using pseudo-first-order, pseudo-second-order and Weber-Morris intra-particle kinetic models and the results showed that pseudo-second-order kinetic model described the ion exchange kinetics accurately for rhodamine B and lead ions. Thermodynamic activation parameters such as ΔG*, ΔS* and ΔH* were also calculated.
Bulletin of The Chemical Society of Ethiopia, Mar 28, 2022
In this study, it was aimed to remove turbidity, which is an important parameter of water quality... more In this study, it was aimed to remove turbidity, which is an important parameter of water quality, and to examine energy consumption from pistachio processing industry wastewater (PPIW). As working parameters, mixing speed, supporting electrolyte (SE) type and concentration, initial pH value of wastewater, and current density were examined. Graphite was used as the anode material, and stainless steel was used as the cathode material. The highest removal for the mixing speed parameter was achieved at 400 rpm, the maximum efficiency for the SE type was achieved at NaCl, a concentration of 2 M for the SE concentration, a pH of 3.0 for the wastewater initial pH value, and a current density of 30 mA/cm 2. However, considering the energy consumption cost in these parameters, the optimal conditions were determined as 1.25 M of SE, pH 3.0, mixing speed of 400 rpm, and current density of 6 mA/cm 2. In these conditions, the turbidity removal efficiency was found to be 90.61%. Energy consumption for the same conditions is calculated at 180 kWh/m 3. In the results obtained, it is observed that energy consumption decreases as the concentration of SE increases. NaCl, which is the electrolyte that provides maximum efficiency in removing turbidity, is also the electrolyte that provides minimum energy consumption. In electrochemical systems, the cost is as important as lifting efficiency. Therefore, the choice should be made, considering which of these two parameters will be the priority.
Ileri oksidasyon prosesleri pek cok endustri atiksuyunun aritimi icin etkili bir sekilde kullanil... more Ileri oksidasyon prosesleri pek cok endustri atiksuyunun aritimi icin etkili bir sekilde kullanilmaktadir. Bu calismada Antep fistigi isleme atiksularinin elektrooksidasyon yontemi ile aritimi arastirilmis ve on calismalarin sonuclari verilmistir. Bu atiksu icin KOI (Kimyasal Oksijen Ihtiyaci), TOK (Toplam Organik Karbon) ve TF (Toplam Fenol) giderimleri icin elde edilen veriler incelenmistir. Anot materyali olarak grafit katot materyali olarak paslanmaz celik plakalar kullanilmistir. Kesikli reaktorde yapilan denemelerde cozelti baslangic pH degeri ve karistirma hizi (100-600 rpm) gibi parametrelerin KOI, TOK ve TF aritimi uzerine etkileri incelenmistir. Elde edilen bu on aritim verilerine gore fistik sanayi isleme atiksularinin elektrooksidasyon yontemi ile aritilabilecegi ve biyolojik aritima girmeden once bir on aritim sistemi olarak onerilebilecegi soylenebilir
In this study, it was investigated initial boron concentration affecting energy consumption in bo... more In this study, it was investigated initial boron concentration affecting energy consumption in boron removal from boron containing wastewaters prepared synthetically, via electrocoagulation method. Initial boron concentration of solution was selected as experimental parameter affecting energy consumption. The other parameters such as solution pH, current density and temperature of solution were kept constant during reaction time. Experiments were carried out with different initial boron concentrations ranging from 100, 250, 500 and 1000mg/L. Increasing initial boron concentration caused to increase specific conductivity of solution. Specific conductivity of solution was a important parameter on energy consumption of electrocoagulation system. The higher specific conductivity of solution caused to the lower energy consumption values. While energy consumption value was 49,87 kW-h/m3 for 100 mg/L initial boron concentration, this value was decreased to 14, 3 kW-h/m3 for 1000 mg/L initi...
The determination of surface properties of montmorillonite clay is an important criterion for est... more The determination of surface properties of montmorillonite clay is an important criterion for establishment of its adsorption ability against anionic and cationic species from wastewaters. In this study, electrokinetic surface properties of montmorillonite were investigated using the microelectrophoresis technique. The zeta-potential (ζ) analysis of the montmorillonite was done by streaming potential measurements as a function of salt concentration and equilibrium pH of solution. It was found that the zeta potential of the clay particles was negative for monovalent cations (KCl, LiCl, NaCl) added to solution phase. Divalent cations (CaCl2, Ca(NO3)2, Pb(NO3)2) could provide a neutral charge at just maximum concentrations. In addition, montmorillonite had a negative charge even at pH 2 and only trivalent cations (Fe(NO3)3, FeCl3) provided positive surface charge at just maximum concentration. The characterization of the montmorillonite was performed by using XRD, XRF, FTIR, SEM imagin...
Issue 4
In this study, the removal of a cationic dye, basic red 18, used in the textile industry with mon... more In this study, the removal of a cationic dye, basic red 18, used in the textile industry with montmorillonite was investigated as a function of initial dye concentration, agitation speed, ionic strength, adsorbent dosage, pH and temperature. Adsorption process was attained to the equilibrium within 30 minutes. The adsorption capacity of basic red 18 increased with increasing ionic strength, initial dye concentration, pH, agitation speed, and temperature, but decreased with increasing adsorbent dosage. The experimental data were analyzed by Langmuir, Freundlich, Temkin, Elovich and Dubinin-Radushkevich isotherms, and it was found that the isotherm data were reasonably correlated by Freundlich isotherm. Pseudo-first order, pseudo-second order, Elovich kinetic equations and intraparticle diffusion model were used to examine the experimental data of different initial conditions. It was found that the pseudo-second order kinetic equation described the data of dye adsorption onto montmorillonite very well. Furthermore, for the removal of basic red 18, a semiempirical model was established. Thermodynamic analysis was carried out for basic red 18 onto montmorillonite. It was found that the adsorption processes were endothermic in nature. The values of E a , ΔH*, ΔS* and ΔG* at 293 K for basic red 18 adsorption on clay were calculated as 27.635 kJ mol -1 , 25.041kJ mol -1 , -0.090 kJ mol -1 K -1 and 51.412 kJ mol -1 , respectively. The results indicated that montmorillonite could be employed as an alternative to commercial adsorbents in wastewater treatment for the removal of color and dyes.
Bulletin of the Korean Chemical Society
Color impurity in industrial effluents pose a significant risk to human health and the environmen... more Color impurity in industrial effluents pose a significant risk to human health and the environment, so much effort has been expended to degrade them using various methods, including the use of clay minerals as adsorbent. The purpose of this study was to advance understanding of the mechanisms for the removal of methylene blue (MB) from aqueous solutions onto montmorillonite as an adsorbent. Preliminary experiments showed that montmorillonite was effective for this purpose and adsorption equilibrium could be reached in about 24 h. Adsorption capacity of the clay decreased with increase in temperature and ionic strength, and increased with in pH. The fitness of equilibrium data to common isotherm equations such as the Langmuir, Freundlich, Elovich, Temkin and Dubinin-Radushkevich were tested. The Langmuir equation fitted to equilibrium data better than all tested isotherm models. Thermodynamic activation parameters such as ΔG 0 , ΔS 0 and ΔH 0 were also calculated and results were evaluated. As result montmorillonite clay was found as effective low cost adsorbent for removal of cationic dyes from waste waters.
Proceedings of the 2nd World Congress on New Technologies, 2016
In this study, it was investigated removal of turbidity from Pistachio Processing Industry Wastew... more In this study, it was investigated removal of turbidity from Pistachio Processing Industry Wastewater (PPIW) by electrooxidation. Electro-oxidation was established using Ti/Pt anodes and stainless steel cathodes in batch mode. Experimental parameters were selected as stirring speed, initial pH value and supporting electrolyte species. Removal fraction and energy consumption was calculated using experimental results of electro-oxidation of PPIW using Ti/Pt DSA type anode and stainless steel cathodes. The highest removal fraction was obtained as 0.85 at pH: 5.3 (natural), no stirring and 0.5 M NaCl supporting electrolyte concentration. Whereas, energy consumption was obtained as 203.5 kW-h/m 3 at same experimental conditions.
Particulate Science and Technology, 2016
Boron pollution has a vital importance in Bigadiç boron mine in Turkey because the wastewaters of... more Boron pollution has a vital importance in Bigadiç boron mine in Turkey because the wastewaters of the mine are stored in a soil dam that threats the underground water quality. In this study the optimization of boron removal from the boron mine wastewater using Purolite S 108 resin was investigated by means of a 2 3 full factorial experimental design. Experiments were carried out in batch mode as a function of pH, temperature and resin-to-solution ratio. The low (1) and high (2) levels of the parameters for pH, temperature and resin-to-solution ratio were 2.5 and 10, 12 ºC and 40 ºC and 1 g/50mL and 2 g/50mL respectively. Boron adsorption capacity of the resin increased with low temperature, low resin-to-solution ratio and high pH. When the probability constants (p<0.05) at 95% confidence level were taken into consideration, only pH was found as statistically important parameter. The optimization of the parameters to obtain optimum conditions was done by interpretation of cube plots, Pareto chart and contour plots. A time span of 48 hours was enough to reach the equilibrium. Adsorption data were analyzed with the Langmuir and Freundlich isotherms. Data fitted to the Langmuir isotherm with a coefficient of determination value of 0.988. Maximum adsorption capacity was calculated as 12.87 mg g -1 . The fixed bed kinetics of boron adsorption onto resin could be explained by the Thomas and Yoon-Nelson models with a coefficient of determination value of 0.938. The fixed bed capacity of the resin was calculated as 12.71 mg g -1 .
Fresenius Environmental Bulletin
The dyes and pigments have poisonous and mutagenic effect on humans and animals. In this study, t... more The dyes and pigments have poisonous and mutagenic effect on humans and animals. In this study, the use of Bigadiç clinoptilolite (natural zeolite) as an adsorbent for removal of methyl violet dye from solutions was investigated. The dye adsorption experiments were carried out in batch mode as a function of pH (3-9), temperature (30-50 ºC), ionic strength (0-0.1 M NaCl) , clinoptilolite calcination temperature (0-200 ºC), particle size (0-45;180-425 ìm) and solid-to-solution ratio (0.1-1.5g/50 mL). The dye adsorption capacity of the clinoptilolite mineral increased with high solution pH, high temperature, high salt concentration, low particle size and low solid-to-solution ratio. Clinoptilolite mineral provided higher adsorption capacity at calcination temperature of 50 ºC. The equilibrium adsorption data fitted to the Langmuir isotherm rather than Freundlich model. The kinetic data could be explained by the pseudo second order model. Also, the kinetic data fitted to the intra particle diffusion model and this indicated that pore diffusion was rate controlling step in the applied batch process. Maximum adsorption capacity of the clinoptilolite mineral was calculated as 75.25 mg/g at pH 9.
Bulgarian Chemical Communications
The determination of surface properties of montmorillonite clay is an important criterion for est... more The determination of surface properties of montmorillonite clay is an important criterion for establishment of its adsorption ability against anionic and cationic species from wastewaters. In this study, electrokinetic surface properties of montmorillonite were investigated using the microelectrophoresis technique. The zeta-potential (ζ) analysis of the montmorillonite was done by streaming potential measurements as a function of salt concentration and equilibrium pH of solution. It was found that the zeta potential of the clay particles was negative for monovalent cations (KCl, LiCl, NaCl) added to solution phase. Divalent cations (CaCl 2 , Ca(NO 3 ) 2 , Pb(NO 3 ) 2 ) could provide a neutral charge at just maximum concentrations. In addition, montmorillonite had a negative charge even at pH 2 and only trivalent cations (Fe(NO 3 ) 3 , FeCl 3 ) provided positive surface charge at just maximum concentration. The characterization of the montmorillonite was performed by using XRD, XRF, FTIR, SEM imaging, and N 2 -BET analyses. The determined porous structure and strong negative surface charge of the montmorillonite showed that this clay would be used effectively in removal of cationic species from waters.
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Papers by Baybars Ali Fil