DOI: https://doi.org/10.14710/presipitasi.v17i2.121-127

Pemanfaatan Kompilasi Bentonit dan Karbon Aktif dari Batubara untuk Menurunkan Kadar BOD dan COD pada Limbah Cair Industri Karet

Utilization of Compilation of Bentonite and Activated Carbon from Coal to Reduce BOD and COD Levels in Rubber Industrial Wastewater

*Muhammad Naswir  -  Universitas Jambi, Indonesia
Yasdi Yasdi  -  Universitas Jambi, Indonesia
Muhammad Akbar Chaniago  -  Universitas Jambi, Indonesia
Yudha Gusti Wibowo  -  Universitas Jambi, Indonesia

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Abstract
This study aims to determine the ability of compilation of bentonite and activated carbon made from coal as adsorbents for adsorption of the parameters of the rubber industry wastewater. The test results found that the levels of BOD (Biochemical Oxygen Demand) 805 ppm, COD (Chemical Oxygen Demand) 1415 ppm, Ammonia 12.5 ppm, TSS 340 ppm, pH 6.6. The process of activation of bentonite using HCL 0.1 M. then stirred for 1 hour at a speed of 200rpm then filtered the resulting residue is heated to a temperature of 110oC for 3 hours. Activation of activated carbon is carried out using 0.2 M H3PO4 and then soaked for 24 hours, then washed with distilled water until the pH approaches neutral, dried in an oven at 150oC. The best contact time for bentonite and activated carbon compilation from coal is 0.1 gram (1: 1). With 250 ml of rubber industry, liquid waste is 60 minutes with a BOD absorption efficiency of 99.75% and COD of 98.72%. The best compilation of bentonite and activated carbon from coal in the adsorption of BOD & COD is in the compilation ratio (1: 1) with an efficiency of 99.75% BOD absorption and 98.72% COD.
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Keywords: BOD; coal; COD; activated carbon

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Section: Original Research Article
Language : ID
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