modelling of mean drop size in a extraction spray column and developing a new model
نویسندگان
چکیده
in the present investigation the biosorption potential of rosa gruss an teplitz (red rose) waste biomass (rrwb) for the removal of pb(ii) and co(ii) from aqueous solutions was studied. the effect of different process parameters such as ph, biosorbent dose, biosorbent size, temperature, contact time, initial metal concentration and pretreatments on the biosorption capacity of this waste biomass was studied. the results showed that the equilibrium data for both metal ions followed the langmuir isotherm with a biosorption capacity of 112.0 and 115.9 mg/g for pb(ii) and co(ii) respectively. the overall biosorption process was best described by pseudo-second-order kinetics. modification of red rose waste biomass by pretreating with different reagents significantly improved its biosorption capacity. a maximum biosorption capacity of 99.72 and 51.68 mg/g was observed for pb(ii) and co(ii) by treating the biomass with methanol and polyethyleneimine + glutraldehyde respectively. the results clearly indicated that red rose waste biomass has a potential to remove heavy metals from aqueous solutions.
منابع مشابه
Modelling of Mean Drop Size in a Extraction Spray Column and Developing a New Model
In the present investigation the biosorption potential of rosa gruss an teplitz (Red Rose) Waste Biomass (RRWB) for the removal of Pb(II) and Co(II) from aqueous solutions was studied. The effect of different process parameters such as pH, biosorbent dose, biosorbent size, temperature, contact time, initial metal concentration and pretreatments on the biosorption capacity of this waste biom...
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Based on the importance of drops' behavior in liquid-liquid extraction, the maximum sauter mean drop diameter has been investigated and correlated in a counter-current spray extraction column with two chemical systems. Spargers were set of nozzles in all experiments. Studying the effects of several parameters on drops size, some correlations were estimated by the last available version of softw...
متن کاملpresenting an empirical correlation for maximum sauter mean diameter in a spray extraction column
based on the importance of drops' behavior in liquid-liquid extraction, the maximum sauter mean drop diameter has been investigated and correlated in a counter-current spray extraction column with two chemical systems. spargers were set of nozzles in all experiments. studying the effects of several parameters on drops size, some correlations were estimated by the last available version of softw...
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عنوان ژورنال:
iranian journal of chemistry and chemical engineering (ijcce)ناشر: iranian institute of research and development in chemical industries (irdci)-acecr
ISSN 1021-9986
دوره 30
شماره 4 2011
میزبانی شده توسط پلتفرم ابری doprax.com
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