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Sago, the common edible starch processed from the tubers of cassava (Mannihotesculenta) is one of the major tuber crops grown in more than 80 countries in the humid tropics. Sago processing industries generates two types of wastewater; one resulting from the washing and peeling of cassava in a rotary drum with low chemical oxygen demand (COD) and the other from the extraction process which owns a high contaminating load of COD and Biochemical oxygen demand (BOD).
Hence, this large quantities of processed water are converted into wastewater, which must be treated before its release into the environment. The amount of water used to produce one ton of starch with repeated washing ranges from 10-30 m3 to improve the starch quality. Due to stringent environment protection regulations for safe discharge, it is necessary for the processing industry to treat wastewater. KIS provides an effective and complete treatment system which ensures a safe effluent standard limit and energy recovery in the form of Biogas before the disposal.
Our ZPHB system provides efficient degradation of the waste and biogas generation which can be used back into the processing plant as energy requirements thus reducing the cost of production of starch from Sago.