Comparison of Ozone Pre-Treatment and Post-Treatment Hybrid with Moving Bed Biofilm Reactor in Removal of Remazol Black 5
The purpose of this research is to investigate wastewater treatment with ozone pre-treatment and post-treatment integrated with Moving Bed Biofilm Reactor (MBBR). Ozonation as a pre-treatment served to increase the Biochemical Oxygen Demand (BOD)/Chemical Oxygen Demand (COD) ratio while as a pos...
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| Main Authors: | , , , , , , , , |
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| Format: | article |
| Language: | EN |
| Published: |
Universitas Indonesia
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/cb6d00154baf423f96f8cf8ec730f074 |
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| Summary: | The
purpose of this research is to investigate wastewater treatment with ozone
pre-treatment and post-treatment integrated with Moving Bed Biofilm Reactor
(MBBR). Ozonation as a pre-treatment served to increase the Biochemical Oxygen
Demand (BOD)/Chemical Oxygen Demand (COD) ratio while as a post-treatment to
remove the remaining organic residues. Ozone doses were 1 mg/min, 4 mg/min, 20
mg/min, and 40 mg/min. In the pre-treatment, ozone produced a BOD/COD value of
0.68. The MBBR process had a COD and color removal efficiency of 68.89% and
67%, respectively. In the MBBR process without ozone pre-treatment, the
efficiency of COD and color removal were 79.31% and 64.7%, respectively. The
effluent treatment results from MBBR were then processed with ozone and showed
the highest COD and color removal results of 76.8% and 99%, respectively. In
this study, the processing with ozone as post-treatment was better than the
pre-treatment. |
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