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Jalal Basiri Parsa,Farideh Nabizadeh Chianeh 한국화학공학회 2012 Korean Journal of Chemical Engineering Vol.29 No.11
This research has two parts: at first part electro coagulation (EC) method was used to remove the dye Direct Black 22 (DB22 (in aqueous media. All experiments were done in a 2 liter reactor with two electrodes made of steel (SS-304) as cathodes and one aluminum electrode as anode. Parameters affecting the process, such as anode material,electrolyte concentration, current density, initial pH of solution and the initial dye concentration, were investigated. Total amount of consumed energy was used for determination of optimal conditions. According to the results obtained for DB22 at optimized conditions, color and COD removal percentage were 92% and 85%, respectively. In addition,the current efficiency for aluminum anode in removal of DB22 was 90%. At the second part of the research work, color removal by EC for six different dyes was evaluated. The results showed that dye structure and anode type are very important factors on performance of the process.
Rasoul Babaei-Sati,Jalal Basiri Parsa 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.52 No.-
The aim of this paper is to perform the electrosynthesis of polypyrrole/multi-walled carbon nanotube(MWCNT) nanocomposites with different concentration of MWCNT on graphite cathode for theelectrogeneration of H2O2 by reducing dissolved oxygen. The results show that cathode modified withnanocomposite with 2.5% w/w MWCNT (GPM-2.5) had highest electrocatalytic activity. In addition, amaximum concentration of H2O2, up to 5.6 mg L 1, is achieved under the conditions of0.55 V (vs. SCE)and pH = 3 after 10 min electrolysis. Furthermore, it is demonstrated that the GPM-2.5 cathode has a highefficiency in decolorization of basic blue 41 by electro-Fenton process.
Removal of ciprofloxacin from aqueous solution by a continuous flow electro-coagulation process
Farideh Nabizadeh Chianeh,Jalal Basiri Parsa,Taher Mehdi Panah 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.3
This study deals with the performance and modeling of the electro-coagulation process for ciprofloxacin (CIP) removal by using aluminum electrode as anode in a continuous electrochemical reactor. The initial pH, temperature, current density, time and flow rate were selected as independent variables in response surface methodology (RSM) involving a five-level central composite design (CCD), while CIP removal efficiency was considered as the response function. The result of optimization showed that the maximum amount of CIP removal efficiency (88%) presented at the optimal condition of pH=5.6, t=100min, T=25.5 oC, I=5.6mA/cm2 and V=25.9 mL/min. In addition, the mineralization of the CIP was investigated by chemical oxygen demand (COD) and total organic carbon (TOC) measurements that showed 77% COD removal and 49%TOC removal.