Reklamasi Pesisir Dan Perubahan Pola Arus Laut: Dampaknya Terhadap Sebaran Polutan Di Sekitar Proyek Surabaya Waterfront Land (SWL)

Putra, Daffa Fardhian (2026) Reklamasi Pesisir Dan Perubahan Pola Arus Laut: Dampaknya Terhadap Sebaran Polutan Di Sekitar Proyek Surabaya Waterfront Land (SWL). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proyek reklamasi Surabaya Waterfront Land (SWL) di pesisir Timur Surabaya berpotensi mengubah karakteristik hidrodinamika dan kualitas perairan di sekitarnya. Penelitian ini bertujuan untuk menganalisis dampak reklamasi terhadap pola arus laut dan sebaran polutan menggunakan pemodelan numerik Delft3D. Parameter kualitas air yang ditinjau meliputi Total Suspended Solids (TSS), Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), dan Ammonia pada kondisi pasang tertinggi dan surut terendah. Metodologi penelitian dilakukan dengan mensimulasikan kondisi eksisting (pra-reklamasi) dan kondisi pasca-reklamasi untuk membandingkan perubahan konsentrasi polutan di beberapa titik stasiun pengamatan. Secara umum, pasca-reklamasi menunjukkan tren kenaikan konsentrasi pada parameter DO (naik hingga 18,13%), BOD (naik hingga 18,54%), dan Ammonia (naik hingga 20,21%). Sementara itu, parameter TSS menunjukkan perubahan yang lebih dinamis dengan kenaikan di beberapa titik saat pasang (maksimal 8,45%) namun cenderung menurun saat kondisi surut. Berdasarkan perbandingan dengan Baku Mutu Air Laut (PP No. 22 Tahun 2021), parameter TSS, DO, dan BOD pasca-reklamasi secara konsisten masih memenuhi standar baku mutu yang ditetapkan. Namun, parameter Ammonia ditemukan telah melampaui ambang batas 0,3 mg/L baik pada kondisi pra maupun pasca-reklamasi. Penelitian ini menyimpulkan bahwa meskipun terjadi perubahan pola sebaran polutan, dampak reklamasi terhadap penurunan kualitas air di lokasi studi relatif tidak drastis dan masih berada dalam batas toleransi lingkungan untuk mayoritas parameter yang diuji.
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The Surabaya Waterfront Land (SWL) reclamation project on the East Coast of Surabaya has the potential to alter the hydrodynamic characteristics and water quality of the surrounding environment. This study aims to analyze the impact of reclamation on ocean current patterns and pollutant distribution using Delft3D numerical modeling. Water quality parameters examined include Total Suspended Solids (TSS), Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), and Ammonia during peak high tide and lowest low tide conditions. The research methodology involved simulating existing (pre-reclamation) and post reclamation scenarios to compare changes in pollutant concentrations across several observation stations. In general, the post-reclamation phase showed an upward trend in concentrations for DO (increasing up to 18.13%), BOD (increasing up to 18.54%), and Ammonia (increasing up to 20.21%). Meanwhile, TSS parameters exhibited more dynamic fluctuations, with increases at certain points during high tide (maximum 8.45%) but a tendency to decrease during low tide. Based on a comparison with Seawater Quality Standards (Government Regulation No. 22 of 2021), post-reclamation TSS, DO, and BOD parameters consistently met the established benchmarks. However, Ammonia levels were found to exceed the threshold of 0.3 mg/L in both pre- and post-reclamation conditions. This study concludes that while changes in pollutant distribution patterns occur, the impact of reclamation on water quality degradation at the study site is relatively moderate and remains within environmental tolerance limits for the majority of the tested parameters.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pola Arus, Reklamasi, Baku Mutu Air Laut, Current Patterns, Reclamation, Seawater Quality Standards
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC801 Reclamation of land
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Daffa Fardhian Putra
Date Deposited:	29 Jan 2026 04:48
Last Modified:	29 Jan 2026 04:56
URI:	http://repository.its.ac.id/id/eprint/130992

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