Search for: batch-modes
Article Energy Sources, Part A: Recovery, Utilization and Environmental Effects ; Volume 38, Issue 8 , 2016 , Pages 1096-1102 ; 15567036 (ISSN) ; Asadi, M ; Rahmani Eliato, T ; Vossoughi, M ; Alemzadeh, I ; Sharif University of Technology
Taylor and Francis Inc
Ethylene glycol is an environmental pollutant, which exists in airport runoff and industrial waste. In this article, biodegradation of ethylene glycol in a two-chamber, batch-mode microbial fuel cell was investigated. Glucose and ethylene glycol at different concentrations were used as carbon and energy sources. Chemical oxygen demand removal in the range of 92-98% indicated that microbial fuel cell can be used for biodegradation of ethylene glycol. Ethylene glycol also improved power generation and the maximum power density was 5.72 mW/m2 (137.32 mW/m3), with respect to the same glucose and ethylene glycol concentrations (500 ppm)
Article Proceedings - 2009 3rd International Conference on Emerging Security Information, Systems and Technologies, SECURWARE 2009, 18 June 2009 through 23 June 2009, Athens, Glyfada ; 2009 , Pages 31-36 ; 9780769536682 (ISBN) ; Jalili, R ; IARIA ; Sharif University of Technology
In this paper we propose two mutual authentication protocols for RFID systems. Generally, in RFID systems, a reader can authenticate tags in the real-time and batch modes. This paper proposes the first authentication protocol for the real-time mode. It also proposes an efficient robust mutual authentication protocol for the batch mode. Some significant characteristics of the protocols are forward security, tag anonymity, location privacy, low complexity on the back-end server, and scalability. To the best of our knowledge, our protocols offer the most enhanced security features in RFID mutual authentication protocols with respect to user privacy. In analyzing the protocols, we show how...
An investigation on using MDCs for an efficient desalination process as pretreatment of reverse osmosis, Article Journal of Water Supply: Research and Technology - AQUA ; Volume 69, Issue 4 , 1 June , 2020 , Pages 322-331 ; Abbaspour, M ; Javid, A. H ; Hassani, A. H ; Sharif University of Technology
IWA Publishing 2020
Microbial desalination cell (MDC) is a new bio-electrochemical technique which converts chemical energy into electrical energy, and at the same time desalinates water and treats wastewater. In this study, MDC performance and water biofouling conditions were tested as an efficient pretreatment desalination process of reverse osmosis (RO). The experiments were designed in a three-chamber reactor to compare the performance of batch and continuous fed modes, using bio-cathode and synthetic wastewater in four different hydraulic retention times and 17 and 35 g/L NaCl concentrations. According to the results, maximum salt removal of about 52.3% was obtained in the continuously fed MDC at 35 g/L...
Article Annals of Nuclear Energy ; Volume 39, Issue 1 , January , 2012 , Pages 42-48 ; 03064549 (ISSN) ; Ghaemi, A ; Samadfam, M ; Sharif University of Technology
Thermodynamic and kinetic studies have been carried out on the adsorption of uranium(VI) by Amberlite IRA-910 resin. The adsorption process has been investigated as a function of adsorbate concentration, solution acidity, contact time, adsorbent dosage, and temperature. The experiments were preformed in batch mode, where uranium initial concentration on the solution samples were 185.5, 277.6 and 456.8 (mg/lit), sulfuric acid concentration range was 0.02-9 (mol/lit) and sorbent dosages were 0.2, 0.3 and 0.5 g. Equilibrium isotherm data were analyzed using Freundlich and Dubinin-Radushkevich isotherm models. The results showed that the adsorption process was well described by Freundlich...
Article Journal of Hazardous Materials ; Volume 184, Issue 1-3 , December , 2010 , Pages 248-254 ; 03043894 (ISSN) ; Borghei, S. M ; Olad, A ; Chaichi, M. J ; Sharif University of Technology
The adsorption of chromium compounds from solutions by a composite of polyaniline/poly ethylene glycol (PANi/PEG) was investigated in this study. Experiments were conducted in batch mode under various operational conditions including agitation time, solution pH, PANi/PEG dose and initial concentration of chromium salts. Results showed that concentration of PEG at synthesizing stage has a significant effect on the capacity of produced composite for removal of chromium. Morphologically, PANi/PEG composite is closely dependent on the concentration of PEG. Maximum removal of hexavalent chromium was experienced when 2. g/L of PEG was used in synthesis of PANi/PEG. Removal of hexavalent chromium...