PRODUCTION OFAN ADSORBENT FROM FOOD RESIDUE BIOMASS (FORBI): EVALUATION OF ITS PHYSICAL, CHEMICAL AND ADSORPTION PROPERTIES

Food Residue Biomass (FORBI) is generated by drying and shredding the fermentable fraction of Household Food Waste (HFW) collected door-to-door in the Municipality of Halandri, Greece.The production of an adsorbent by pyrolysis of FORBI was investigated.
For the preparation of the adsorbent from FORBI chemical activation with KOH at 800˚C was used. The sample was initially pyrolyzed at 800˚C, then impregnated with the chemical agent and subsequently activated at the same temperature under constant N2 flow. Impregnation ratio used was 1:4 (gCarbon to gKOH) and pyrolysis/activation time was 1h.
The adsorbent prepared from FORBI by chemical activation was characterized by SEM, FTIR and BET, in order to determine its physical and chemical properties. The pyrolysis conditions (temperature, pyrolysis time) and activation parameters used influenced the properties of the resultant adsorbent significantly. The adsorbent was also tested for the removal of Cr(VI) and COD from wastewater.