http://nopr.niscair.res.in/handle/123456789/12596 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/12606 Title: Application of polyaniline for removal of Acid Green 25 from aqueous solutions <br/> <br/>Authors: Ansari, Reza; Alaie, Samaneh; Mohammad-khah, Ali <br/> <br/>Abstract: This study presents application of polyaniline coated onto wood sawdust (PAni/SD) for removal of Acid Green 25 (AG 25),a commonly used anionic typical dye in textile industries from aqueous solutions. Adsorption was carried out using batch andfixed bed column systems to study the effects of adsorbent dose, initial dye concentration, pH of test solution, temperature, andcontact time. PAni/SD has been found a very efficient adsorbent for adsorption of AG 25. <br/> <br/>Page(s): 804-809 http://nopr.niscair.res.in/handle/123456789/12605 Title: Studies on factors influencing fly ash resistivity from electrostatic precipitator with reference to India <br/> <br/>Authors: Mohanty, C R; Swar, A K; Meikap, B C; Sahu, J N <br/> <br/>Abstract: Electrostatic precipitator (ESP) performance is a function of electrical resistivity of particles in flue gas. This study presents basic factors that influence fly ash resistivity and ultimately ESP performance. Factors that influence electrical resistivity are coal, sulfur, flue gas moisture, flue gas temperature, and ash chemistry etc. From maintenance perspective of ESP used in thermal power plants in India, analysis could be considered enough for predicting the performance of ESP. <br/> <br/>Page(s): 795-803 http://nopr.niscair.res.in/handle/123456789/12604 Title: Experimental investigation on Zirconia coated high compression spark ignition engine with ethanol as fuel <br/> <br/>Authors: Lawrence, P; Mathews, P Koshy; Deepanraj, B <br/> <br/>Abstract: This study presents effect of coating on piston, cylinder head, and valves on the performance of a modified four stroke diesel engine using wet ethanol (5% water) as a fuel and emission characteristics of exhaust gas. Zirconia, which has low thermal conductivity, high temperature resistance, chemical inertness, high resistance to erosion, corrosion and high strength, was selected as a coating material for engine components. Ethanol was sprayed in inlet manifold and spark plug was erected on engine head to facilitate ignition. Engine’s performance was studied for both wet ethanol and diesel with and without Zirconia coating. Also, emissions values were recorded to study the engine’s behavior on emissions. <br/> <br/>Page(s): 789-794 http://nopr.niscair.res.in/handle/123456789/12603 Title: Degradation of pesticide by combined photofenton-ozonation process and study of its synergistic effect <br/> <br/>Authors: Rajeswari, R; Kanmani, S <br/> <br/>Abstract: This study presents degradation of pesticide, carbaryl, by combined photofenton-ozonation (PFO) process. Experiments were conducted under pH (3-9), ferrous ion dosage (0-600 mg/l), hydrogen peroxide (0-4 g/l) and ozone dosages (0.12-0.57 g/h) for optimized reaction conditions of carbaryl degradation. Five experimental sets (UV/Fe²⁺/H₂O₂,UV /O₃, Fe²⁺/H₂O₂, O₃ and UV/Fe²⁺/H₂O₂/O₃) were conducted under optimized conditions to prove synergistic effect. Kinetic study revealed increased rate constant in combined process (PFO, 0.0194 min^-1) compared to individual process (photofenton, 0.0120 min^-1; ozonation, 0.0112 min^-1). Presence of inorganic ions such as nitrate indicated fragmentation of active pesticide structure. Complete removal of parent carbaryl and 86% mineralization was achieved at the end of 180 min treatment with combined processes. <br/> <br/>Page(s): 784-788