Effects of Carbonization Parameters on the COD Reduction of Rhodamine B Dye Aqueous Solutions Using Elaeis guineensis Frond Fiber

The effects of various carbonization parameters on the cod reduction of rhodamine b dye aqueous solutions using carbonized elaeis guineensis frond fiber (egff) chars have been studied experimentally. the adsorbent with the particle size of <45 μm has been carbonized at temperature from 500-900 ˚c with carbonization duration of 1-3 h at a heating rate of 10-30 ˚c/min and nitrogen gas flow rate of 100-500 cm 3/min. carbonization temperature, carbonization duration, heating rate and nitrogen gas flow rate were significantly affecting the carbonization process. statistical analysis- response surface methodology (rsm)- face centered composite design (fccd) was used to obtain the optimal carbonization conditions. the optimum condition for carbonization of egff was obtained at carbonization temperature of 899 ˚c, carbonization duration of 2.7 h, heating rate of 10 ˚c/min, and nitrogen flow rate of 243 cm3/min with 98.88 % of cod reduction of rhodamine b