The Experts below are selected from a list of 24531 Experts worldwide ranked by ideXlab platform
Eduardo L Tavani - One of the best experts on this subject based on the ideXlab platform.
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treatment of an Industrial Effluent by reverse osmosis
Desalination, 1999Co-Authors: Antonio Perez Padilla, Eduardo L TavaniAbstract:Abstract The treatment of tanning wastewater was studied by means of reverse osmosis and ultrafiltration. Tests were carried out on laboratory scale using membranes of polyamide (reverse osmosis) and of polysulfone (ultrafiltration). The evaluation of the system was performed by chemical analysis, pH measurements and visible spectrophotometry. Effects of the protein contained in the Industrial Effluent, the applied pressure and the feed temperature on the permeate flux were analyzed. The polyamide membrane used allowed us to obtain permeates with a low chromium (III) content (7–10 mg/L) but with appreciable amounts of SO4= (1–3 g/l), Cl− (9–14 g/L) and Na+ (5–10 g/L). The presence of chromium (III) polymers was determined in the original Effluent and in the concentrates obtained by reverse osmosis. Finally, it was established that during the operation of reverse osmosis, the transport of H+(H3O+) from the concentrate to the permeate was produced.
P Asaithambi - One of the best experts on this subject based on the ideXlab platform.
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electrochemical treatment of simulated sugar Industrial Effluent optimization and modeling using a response surface methodology
Arabian Journal of Chemistry, 2016Co-Authors: P Asaithambi, Manickam MatheswaranAbstract:Abstract The removal of organic compounds from a simulated sugar Industrial Effluent was investigated through the electrochemical oxidation technique. Effect of various experimental parameters such as current density, concentration of electrolyte and flow rate in a batch electrochemical reactor was studied on the percentage of COD removal and power consumption. The electrochemical reactor performance was analyzed based on with and without recirculation of the Effluent having constant inter-electrodes distance. It was found out that the percentage removal of COD increased with the increase of electrolyte concentration and current density. The maximum percentage removal of COD was achieved at 80.74% at a current density of 5 A/dm 2 and 5 g/L of electrolyte concentration in the batch electrochemical reactor. The recirculation electrochemical reactor system parameters like current density, concentration of COD and flow rate were optimized using response surface methodology, while COD removal percents were maximized and power consumption minimized. It has been observed from the present analysis that the predicted values are in good agreement with the experimental data with a correlation coefficient of 0.9888.
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integrated ozone electrocoagulation process for the removal of pollutant from Industrial Effluent optimization through response surface methodology
Chemical Engineering and Processing, 2016Co-Authors: P Asaithambi, A Abdul R Aziz, Wan Mohd Ashri Wan DaudAbstract:Abstract In this study, the efficiency of ozonation, electrocoagulation and ozone assisted electrocoagulation processes for removal of pollutants from Effluent of distillery industry was compared. The experimental results showed that ozone assisted electrocoagulation process yielded higher pollutant removal than ozone and electrocoagulation processes alone. Response surface methodology based on central composite design was used to optimize various operating parameters of the ozone assisted electrocoagulation process for the treatment of Industrial Effluent. The effects of five independent parameters such as current density(X 1 ), COD concentration(X 2 ), Effluent pH(X 3 ), inter-electrode distance(X 4 ) and electrolysis time(X 5 ) on the% COD removal and power consumption were investigated. A quadratic model was used to predict the COD removal and power consumption in different conditions. The significance of independent variables and their interaction were evaluated by ANOVA. In order to achieve the maximum COD removal and minimum power consumption, the optimum conditions were obtained by mathematical and statistical methods. The results showed that maximum COD removal efficiency could be achieved at optimum conditions of X 1 − 3A/dm 2 , X 2 − 3000 ppm, X 3 − 7, X 4 − 1.8 cm and X 5 − 5 h. In conclusion, hybrid electrocoagulation process could be applied successfully for removing pollutants from Effluent.
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combination of electrocoagulation with advanced oxidation processes for the treatment of distillery Industrial Effluent
Process Safety and Environmental Protection, 2016Co-Authors: A Abdul R Aziz, P Asaithambi, Wan Mohd Ashri Wan DaudAbstract:Abstract The treatment of distillery Industrial Effluent by means various combinations of electrocoagulation with Advanced Oxidation Processes (AOPs) such as ozonation, electrocoagulation, peroxi–electrocoagulation, photo–electrocoagulation, ozone–electrocoagulation and peroxi–photo–electrocoagulation process on the removal of percentage color, COD and energy consumption. The effects of various operating parameters such as ozone flow rate (5 to 15 LPM), initial Effluent pH (2 to 10), current density (0.10 to 0.50 A/dm2) and H2O2 concentration (50 to 500 mg/L) on the removal of pollutant were studied in this study. Moreover comparison of all the processes in terms of color removal, COD removal and energy consumption was also carried out. The experimental results showed that100% of color and COD removal could be achieved by ozone–electrocoagulation process with an energy consumption of 5.7 kW h/m3 within four hours of reaction time. The extent of color and COD removal was analyzed using a UV/vis spectrophotometer and closed reflux method.
Antonio Perez Padilla - One of the best experts on this subject based on the ideXlab platform.
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treatment of an Industrial Effluent by reverse osmosis
Desalination, 1999Co-Authors: Antonio Perez Padilla, Eduardo L TavaniAbstract:Abstract The treatment of tanning wastewater was studied by means of reverse osmosis and ultrafiltration. Tests were carried out on laboratory scale using membranes of polyamide (reverse osmosis) and of polysulfone (ultrafiltration). The evaluation of the system was performed by chemical analysis, pH measurements and visible spectrophotometry. Effects of the protein contained in the Industrial Effluent, the applied pressure and the feed temperature on the permeate flux were analyzed. The polyamide membrane used allowed us to obtain permeates with a low chromium (III) content (7–10 mg/L) but with appreciable amounts of SO4= (1–3 g/l), Cl− (9–14 g/L) and Na+ (5–10 g/L). The presence of chromium (III) polymers was determined in the original Effluent and in the concentrates obtained by reverse osmosis. Finally, it was established that during the operation of reverse osmosis, the transport of H+(H3O+) from the concentrate to the permeate was produced.
Manickam Matheswaran - One of the best experts on this subject based on the ideXlab platform.
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electrochemical treatment of simulated sugar Industrial Effluent optimization and modeling using a response surface methodology
Arabian Journal of Chemistry, 2016Co-Authors: P Asaithambi, Manickam MatheswaranAbstract:Abstract The removal of organic compounds from a simulated sugar Industrial Effluent was investigated through the electrochemical oxidation technique. Effect of various experimental parameters such as current density, concentration of electrolyte and flow rate in a batch electrochemical reactor was studied on the percentage of COD removal and power consumption. The electrochemical reactor performance was analyzed based on with and without recirculation of the Effluent having constant inter-electrodes distance. It was found out that the percentage removal of COD increased with the increase of electrolyte concentration and current density. The maximum percentage removal of COD was achieved at 80.74% at a current density of 5 A/dm 2 and 5 g/L of electrolyte concentration in the batch electrochemical reactor. The recirculation electrochemical reactor system parameters like current density, concentration of COD and flow rate were optimized using response surface methodology, while COD removal percents were maximized and power consumption minimized. It has been observed from the present analysis that the predicted values are in good agreement with the experimental data with a correlation coefficient of 0.9888.
N Palaniswamy - One of the best experts on this subject based on the ideXlab platform.
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performance evaluation of low cost adsorbents in reduction of cod in sugar Industrial Effluent
Journal of Hazardous Materials, 2009Co-Authors: A K Parande, A Sivashanmugam, H Beulah, N PalaniswamyAbstract:Abstract Studies on reduction of chemical oxygen demand (COD) in Effluent from sugar industry have been carried out by employing different absorbents optimizing various parameters, such as initial concentration of adsorbate, pH, adsorbent dosage and contact time. Experimental studies were carried out in batches using metakaolin, tamarind nut carbon and dates nut carbon as adsorbents by keeping initial adsorbent dosage at 1 g l −1 , agitation time over a range of 30–240 min, adsorbent dosage at 100–800 mg l −1 by varying the pH range from 4 to 10. Characterization of there adsorbents were done using techniques such as Fourier transforms infra red spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscope (SEM). The experimental adsorption data fitted well to Langmuir and Freundlich adsorption isotherms. The isotherms of the adsorbents indicate appreciable adsorption capacity. Higher COD removal was observed at neutral pH conditions. Studies reveal that maximum reduction efficiency of COD takes place using metakaolin as an absorbent at a dosage of 500 mg l −1 in a contact time of 180 min at pH 7 and it could be used as an efficient absorbent for treating sugar Industrial Effluent.