CD Tesis
Pengolahan Limbah Cair Kelapa Sawit Menggunakan Metode Elektrokoagulasi Plate Column Berpengaduk Secara Kontinu
Palm oil mill effluent continues to increase in line with the increase in palm oil production in Indonesia. Therefore, another alternative technology is needed, such as the continuous stirred plate column electrocoagulation method as an advanced technology in treating palm oil mill effluent. This research aims to design a continuous reactor for processing palm oil mill effluent by applying the principle of electrocoagulation and determining the most effective flow rate, stirring speed and electrode distance to reduce BOD, COD dan TSS concentrations. The fixed variables consist of a reactor volume of 14 liters, voltage 36 volt, current 10 amperes, a number of aluminium anode plates 20 sheets, palm oil mill effluent from PTPN V Sei.Pagar. The unfixed variable consist of flow rate (0.4; 0.7; and 1.2 L/min), stirring speed (166; 266; and 366 rpm), electrode distance (1; 2; and 3 cm).
The results showed that at a flow rate of 0.4 L/min, stirring speed of 366 rpm, electrode distance of 1 cm. The highest percentage removal was obtained: BOD 98.47 % from 3848 mg/L to 297.80 mg/L, COD 92.26 % from 579,80 mg/L to 8.86 mg/L and TSS 97.01 % from 268 mg/L to 8 mg/L. The result of this research has complied with quality standard of palm oil mill effluent as stipulated in regulation of the Minister Environment Republic Indonesia number 5, 2014.
Keywords: BOD, COD, distance between electrode plates, electrocoagulation, flow rate, stirring speed, TSS
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