Application of Cavitation Ozonation Process on Recalcitrant Organic Matter Degradation from Stabilized Landfill Leachate
Treatment of stabilized leachate as a by-product of municipal landfills has been a significant challenge as the leachate contains recalcitrant organic matter which has low biodegradability. In this study, the efficacy of the advanced oxidation process using cavitation–ozonation to remove recalci...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2021-01-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/4284 |
| Summary: | Treatment
of stabilized leachate as a by-product of municipal landfills has been a
significant challenge as the leachate contains recalcitrant organic matter
which has low biodegradability. In this study, the efficacy of the advanced
oxidation process using cavitation–ozonation to remove recalcitrant organic
matter in leachate samples from TPST Bantar Gebang was evaluated. Several
operational and process parameters including pH, ozone flowrate, and contact
time were varied to determine the best conditions for removing recalcitrant
organic matter represented by Chemical Oxygen Demand (COD). This study
determined the optimum operating conditions for the cavitation–ozonation
process: pH 11, ozone discharge of 3 L/min, and contact time of 30 minutes. The
result was a COD removal efficiency of 20.37%, an increase of 52.06% in the
concentration of BOD5, and a 90% increase in the ratio of BOD5 to COD. This
study has shown that cavitation–ozonation is an effective pre-treatment, as it
increases the biodegradability of stabilized leachate and reduces the load on
subsequent treatment processes. |
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| ISSN: | 2086-9614 2087-2100 |