| Autor: |
Koko Suryawan, I Wayan, Septiariva, Iva Yenis, Helmy, Qomarudin, Notodarmojo, Suprihanto, Wulandari, Marita, Sari, Novi Kartika, Sarwono, Ariyanti, Pratiwi, Riska, Jun-Wei Lim |
| Předmět: |
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| Zdroj: |
International Journal of Technology; Oct2021, Vol. 12 Issue 4, p728-738, 11p |
| Abstrakt: |
The purpose of this research is to investigate wastewater treatment with ozone pretreatment 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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