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Journal of Engineering and Applied Sciences

ISSN: Online 1818-7803
ISSN: Print 1816-949x
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The Application of Moving Bed-Biofilm Sequencing Batch Reactor System in Decreasing Chemical Oxygen Demand (COD) Concentration on Palm Sugar Industry Wastewater

Amrina Rosyadaand and Setyo S. Moersidik
Page: 4752-4758 | Received 21 Sep 2022, Published online: 21 Sep 2022

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https://doi.org/10.36478/jeasci.2017.4752.4758

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Abstract

Palm sugar wastewater has a high concentration of COD (3270-3773 mg/L) which exceed the quality standard of Indonesia’s Ministry of Environment and Forestry Law No. 5 of 2014. Moving-bed biofilm sequencing batch reactor is an attached growth system which able to tolerate high concentrations of organic matters in wastewater. This experiment was performed in a lab-scale reactor by varying detention time 12, 18 and 24 h. The ratio of BOD5/COD before and after the treatment was increased from 0.46-0.69. It happens presumably due to the hydrolysis process which convert the complex organic compound to simple organic compound. During the experiment, the optimum dissolved oxygen was 2.41-2.62 mg/L. The results showed the COD removal efficiency at 12, 18 and 24 h detention time, respectively are 84-89, 86-91 and 88-92%. The decreasing of organic loading rate will result in increased removal efficiency of COD. Therefore, the optimum organic loading rate to reach COD removal efficiency above 88% is in the range of 3.27-4.27 kg COD/m3 day. The highest removal efficiency reached was 92% in 24 h detention time with organic loading, dissolved oxygen and pH effluent, respectively at 3.27 kg COD/m3 day, 2.51 mg/L and 8.6. This study, showed that MBSBR system has an acceptable performance to treat wastewater with a high load of organic carbon at a certain detention time.

How to cite this article:

Amrina Rosyadaand and Setyo S. Moersidik. The Application of Moving Bed-Biofilm Sequencing Batch Reactor System in Decreasing Chemical Oxygen Demand (COD) Concentration on Palm Sugar Industry Wastewater.
DOI: https://doi.org/10.36478/jeasci.2017.4752.4758
URL: https://www.makhillpublications.co/view-article/1816-949x/jeasci.2017.4752.4758