Iva Yenis Septiariva, Sapta Suhardono, Mega Mutiara Sari, I Wayan Koko Suryawan


Leachate is one of the results of the waste degradation process that can pollute the environment. Leachate is usually treated by biological processes, including aerobic processes that require sufficient oxygen. Oxygen transfer by aeration process is one way to consider gas transfer coefficient (KLa). This study aims to determine the gas KLa kinetics in leachate. This study used a chemical oxygen demand (COD) concentration limit of 100 mg/L. The oxygen flow rates used in this study were 1 L/minute and 1.5 L/minute. The main parameter measured in this study is dissolved oxygen (DO) which is measured by a DO meter every minute. The final DO in this study can be as high as 4 to 6 mg/L. The KLa values in this study show values at the flow of 1 and 1.5 L/min, respectively 0.0095/min and 0.017/min. These results also show that the detention time required for 1 and 1.5 L/min flow rates is 1.75 hours and 0.96 hours. This indicates that the greater the flow rate is given to the oxygen transfer process, the greater the flow rate the KLa value will increase. This will also affect the volume required for the oxygen transfer process. In addition, further research is needed with more diverse variations to further determine the appropriate detention time in leachate processing.

Full Text:



Benefield. (1982). Process Chemistry For Water And WasteWater Treatment Prentice. Hall Inc.

Chen, C.-C., Gong, G.-C., & Shiah, F.-K. (2007). Hypoxia in the East China Sea: One of the largest coastal low-oxygen areas in the world. Marine Environmental Research, 64(4), 399–408.

de Medeiros Engelmann, P., dos Santos, V. H. J. M., Barbieri, C. B., Augustin, A. H., Ketzer, J. M. M., & Rodrigues, L. F. (2018). Environmental monitoring of a landfill area through the application of carbon stable isotopes, chemical parameters and multivariate analysis. Waste Management, 76, 591–605.

dos Santos, S. L., & van Haandel, A. (2021). Transformation of Waste Stabilization Ponds: Reengineering of an Obsolete Sewage Treatment System. In Water (Vol. 13, Issue 9).

Fadhilah, N., Alvin, L., Vembrio, W., & Safira, R. H. (2020). Modifikasi Unit Proses dalam Peningkatan Efisiensi Penyisihan Amonium Modification of Process Unit to Improve Ammonium Removal Efficiency. Jsal, 7(2), 47–56.

Gaval, G., Duchène, P., & Pernelle, J.-J. (2002). Filamentous bacterial population dominance in activated sludges subject to stresses. Water Science and Technology, 46(1–2), 49–53.

Haryanto, E., As, I. A., Susetyaningsih, R., Pengajar, S., & Yogyakarta, Y. L. H. (2005). PENGARUH BENTUK DIFUSER TERHADAP TRANSFER OKSIGEN. J. Rekayasa Perenc, 2(1), 1–18.

Hutchins, M. G., Harding, G., Jarvie, H. P., Marsh, T. J., Bowes, M. J., & Loewenthal, M. (2020). Intense summer floods may induce prolonged increases in benthic respiration rates of more than one year leading to low river dissolved oxygen. Journal of Hydrology X, 8, 100056.

Jatmoko, M., Adinda, A. R., Siregar, F. H., Dalimunthe, R. C., Sari, M., & Pertama, I. W. K. S. (2021). Perencanaan Proses Pengolahan Lindi di TPA Nusa Lembongan dengan Menggunakan Kolam Stabilisasi Planning for Leachate Treatment Process at TPA Nusa Lembongan by Using. 12(2), 165–173.

Naveen, B. P., Sumalatha, J., & Malik, R. K. (2018). A study on contamination of ground and surface water bodies by leachate leakage from a landfill in Bangalore, India. International Journal of Geo-Engineering, 9(1), 27.

Noerfitriyani, E, Hartono, D. M., Moersidik, S. S., & Gusniani, I. (2018). Leachate characterization and performance evaluation of leachate treatment plant in Cipayung landfill, Indonesia. IOP Conference Series: Earth and Environmental Science, 106, 12086.

Noerfitriyani, Eki, Hartono, D. M., Moersidik, S. S., & Gusniani, I. (2018). Impact of Leachate Discharge from Cipayung Landfill on Water Quality of Pesanggrahan River, Indonesia. IOP Conference Series: Earth and Environmental Science, 120, 12002.

Oktiawan, W., Bagus Priyambada, I., & Purwono, P. (2020). Challenges and Opportunities in implementing leachate recirculation in Indonesia: technical aspects. E3S Web Conf., 202.

Sarwono, A., Widiantara, M. D., Zahra, N. L., Floresyona, D., Suryawan, I. W. K., Michael, F., & Siagian, H. (2022). Utilization of Black Liquor as Urease Inhibitor for Ammonia Reduction. 23(2), 213–218.

Septiariva, I. Y., & Suryawan, I. W. K. (2021). Development of water quality index (WQI) and hydrogen sulfide (H2S) for assessment around suwung landfill, Bali Island. Journal of Sustainability Science and Management, 16(4), 137–148.

Stadler, L. B., & Love, N. G. (2016). Impact of microbial physiology and microbial community structure on pharmaceutical fate driven by dissolved oxygen concentration in nitrifying bioreactors. Water Research, 104, 189–199.

Suryawan, I. W. K., Prajati, G., Afifah, A. S., & Apritama, M. R. (2021). Nh3-n and cod reduction in endek (Balinese textile) wastewater by activated sludge under different do condition with ozone pretreatment. Walailak Journal of Science and Technology, 18(6), 1–11.

Tchobanoglous, G., Burton, F. L., & H.D., S. (2002). Wastewater Engineering: Treatment and Reuse. American Water Works Association Journal.

Wilén, B.-M., & Balmér, P. (1999). The effect of dissolved oxygen concentration on the structure, size and size distribution of activated sludge flocs. Water Research, 33(2), 391–400.

Xiong, J., Zheng, Z., Yang, X., Dai, X., Zhou, T., He, J., & Luo, X. (2018). Recovery of NH3-N from mature leachate via negative pressure steam-stripping pretreatment and its benefits on MBR systems: A pilot scale study. Journal of Cleaner Production, 203, 918–925.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.