| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a palm oil mill wastewater treatment apparatus capable of sufficiently reducing a BOD component and an SS component in palm oil mill wastewater. <P>SOLUTION: After undergoing a methane fermentation treatment, the palm oil mill wastewater is introduced in an aeration tank 2 for a biological treatment to thereby decompose an organic substance to chiefly reduce the BOD component which is soluble (and to partially remove the BOD component which is derived from the SS component). The biologically treated palm oil mill wastewater from the aeration tank 2 is supplied with a flocculant by a flocculant supply means 10. After the supply of the flocculant, the palm oil mill wastewater containing the flocculant is easily separated into treated water and flocculated sludge via a flocculated sludge treatment means 4. Because the flocculated sludge is produced from the SS component having reacted with the flocculant, the SS component can hence be reduced in the treated water as well as the BOD component derived from the SS component. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
