Identification of Seawater Quality Around PLTU Teluk Sepang Outlet Based on Oceanographic Parameters

  • Muamar Gerry Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu
  • Angeli Silaban Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu
  • Septi Johan Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu
  • Liza Lidiawati Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu

Abstract

The heat waste produced by the PLTU is released directly into the ocean, significantly impacting the quality of sea water. This research intends to assess the quality of sea water near the PLTU Teluk Sepang outlet in Bengkulu City using oceanographic parameters. Data collection was conducted in the field at eight sites that represent the area around the PLTU outlet, focusing on parameters such as sea water temperature, salinity, density, pH, and ocean currents. The obtained measurement results were then compared against the standards set by KepMenLH No. 51, 2004. The findings reveal that parameters such as temperature, pH, and salinity did not meet the quality standards necessary for marine biota ecosystems; the average temperature ranges from 33.58 to 35.39 °C, the pH levels were between 8.59 and 8.76, indicating an alkaline condition, and salinity measures between 24.7 and 26.9 ‰, all of which fall below the standards established by KepMenLH No. 51, 2004. This research demonstrates that the discharge of heat waste substantially pollutes the sea water quality around the PLTU Teluk Sepang outlet in Bengkulu City, particularly affecting sea water temperature, which significantly influences the metabolism of marine biota.

##Keywords:## Heat waste; Density; Salinity; Seawater Temperature; PLTU Teluk Sepang.
Published
Jul 29, 2025
How to Cite
GERRY, Muamar et al. Identification of Seawater Quality Around PLTU Teluk Sepang Outlet Based on Oceanographic Parameters. Journal of Ocean, Mechanical and Aerospace -science and engineering-, [S.l.], v. 69, n. 2, p. 106-112, july 2025. ISSN 2527-6085. Available at: <https://isomase.org/Journals/index.php/jomase/article/view/533>. Date accessed: 14 may 2026. doi: http://dx.doi.org/10.36842/jomase.v69i2.533.

References

[1] Monika, E., Aprianty, H., Darmawi & E. (2022). Collaborative governance. Mimbar: Jurnal Penelitian Sosial dan Politik, 11(2), 261–267.
[2] Dzahabiyyah, N., Priyanta, M. & Adharani, Y. (2022). Arah pengaturan terkait pembangunan PLTU di Indonesia sebagai bentuk komitmen terhadap Paris Climate Agreement. Litra: Jurnal Hukum Lingkungan, Tata Ruang, dan Agraria, 1(2), 185–204. https://doi.org/10.23920/litra.v1i2.725.
[3] Lizalidiawati, Juniarti, E. & Harlianto, B. (2021). Sebaran kualitas air laut di perairan sekitar PLTU Teluk Sepang Kota Bengkulu berdasarkan parameter fisika-kimia. Newton-Maxwell: Journal of Physics, 2(1), 27–34. https://doi.org/10.33369/nmj.v2i1.15256.
[4] Oktaviani, S., Siregar, S.H., Fauzi, R., Reflis, R. & Utama, S.P. (2023). Gangguan ekosistem laut sebagai dampak keberadaan PLTU Teluk Sepang Bengkulu: Sebuah telaah pustaka. Insologi: Jurnal Sains dan Teknologi, 2(6), 1061–1068. https://doi.org/10.55123/insologi.v2i6.2828.
[5] Wina, A.A. (2023). Distribusi mikroplastik dan analisis granulometri pada sedimen dasar di pesisir utara Aceh.
[6] Peter, E., Telussa, R.F. & Rahmani, U. (2022). Pola perubahan suhu permukaan laut akibat air bahang PLTU Lontar di perairan Kronjo Tangerang. Jurnal Ilmiah Satya Minabahari, 7(2), 12–19. https://doi.org/10.53676/jism.v7i2.132.
[7] Mulyarto, N., Rochaddi, B. & Ismanto, A. (2023). Analisis sebaran suhu permukaan laut di perairan PLTU Tanjung Jati, Jepara (Skenario: Kerusakan pada water treatment). Indonesian Journal of Oceanography, 5(1), 69–79. https://doi.org/10.14710/ijoce.v5i1.15974.
[8] Sukmawanty, R.O., Kunarso, K., Maslukah, L. & Ismanto, A. (2022). Simulasi pemodelan sebaran suhu akibat limbah air panas power plant PT. Amman Mineral Nusa Tenggara di Teluk Benete, Sumbawa Barat. Jurnal Kelautan: Indonesian Journal of Marine Science and Technology, 15(2), 179–188. https://doi.org/10.21107/jk.v15i2.13289.
[9] Huboyo, B.S.H. & Zaman. (2007). Analisis sebaran temperatur dan salinitas air limbah PLTU-PLTGU berdasarkan sistem pemetaan spasial (Studi kasus: PLTU-PLTGU Tambak Lorok Semarang). Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan, 3(2), 40–45. http://eprints.undip.ac.id/516/.
[10] Varabih, C.A. & Fitri, D.H. (2024). Pengaruh pemanasan global dan pengasaman laut terhadap biota. Jurnal Oceanografi dan Aquatic Science, 2(1), 13–16.
[11] Rahimah, F. (2019). Kelayakan kualitas air laut di PPN Karangantu untuk ikan laut. Sistem Informasi Kelautan, Universitas Pendidikan Indonesia, 80–89.
[12] Kamaruddin, E. (2018). Pemantauan kadar logam berat dalam air laut dan sedimen diperairan pulau tebing tinggi kabupaten kepulauan meranti, provinsi riau. Asian Journal of Environment, History and Heritage, 2(1), 7-17.
[13] Nugraha, S., Nadia Zahrina W, Billy Yanfeto, & Rifqi Noval Agassi. (2024). Variasi Sebaran Parameter Oseanografi di Sekitar Pulau Bawean pada Bulan Maret 2019: The Distribution Variations of Oceanographic Parameters around Bawean Island in March 2019. Jurnal Hidrografi Indonesia, 6(1), 35–44. https://doi.org/10.62703/jhi.v6i1.50.