Modelling of Mean Drop Size in a Extraction Spray Column and Developing a New Model

نویسندگان

  • Hossein Abolghasemi School of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran,, I.R. IRAN
  • Saeid Reza Radpour Chemical and Petroleum Engineering Department, Sharif University of Technology,Tehran, I.R. IRAN
چکیده مقاله:

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.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

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 biomass ...

متن کامل

Experimental Investigation of Flooding and Drop Size in a Kuhni Extraction Column

In this research, Sauter-mean drop diameters and the flooding behavior have been investigated experimentally in a pilot scale Kühni extraction column. The experiments were carried out in the absence of mass transfer for two different standard chemical systems. In the experiments operating parameters including agitation speed, flow rate of both liquid phases and interfacial tension have been stu...

متن کامل

Presenting 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...

متن کامل

presenting 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...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 30  شماره 4

صفحات  89- 96

تاریخ انتشار 2011-12-01

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023