Abstract
Iron materials play a vital role for the treatment of water and wastewater. It is available in different forms and is applied in different ways according to the methodology required. This investigation was carried out to determine the treatment efficiency of ferrous compound in chemical and thermal oxidation process to treat sugar industry wastewater. The results show 74.5% chemical oxygen demand, 87% color reduction by chemical treatment and 73% chemical oxygen demand, 79% color reduction by thermal treatment with ferrous sulfate salt. Iron compounds show 20:80 solid–liquid interface after 125 min of settling, filter medium resistance 1.56 × 10−12 and cake resistance 1.30 × 10−14 m/kg with chemical coagulation. Generated sludge has less inorganic material and functional groups and can be used as fertilizer for agriculture crops.
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