clarification of industrial corn syrup by granular activated carbon produced from cherry and date stones

High fructose corn syrup is used as a sugar substitute# solid agricultural waste such as date and cherry stones are remained the envirenment creating secondry pollution# the purpose of the present study is to produce granular activated carbon from agricultural waste stones using microwave irradiation as an efficient adsorbent for purification of corn syrup# phosphoric acid is firstly impregnated into the washed stones by microwave-assisted technique, and then dried precursors are heated in closed ceramic vessels# experimental research was conducted to understand the role of various activation factors such as, impregnation ratio, microwave power, carbonization temperature and time on the purification of corn syrup# these factors effectively influence the uptake of syurp impurity# the incerment of microwave power up to 600 w and carbonization temperature up to 700 c effectively improve the purification process# it was found that the cherry stone is approperiate starting material for fubrication of granolar packed bed to for rapid crirefication of corn syurp#