Eswandanu, Hafiz Musyaffa (2026) Evaluasi Efektivitas Cat Antifouling Biosida Pendukung Dichloro-Octyl-Isothiazolinone (DCOIT) Dan Parameter Air Laut Terhadap Jenis Biofouling Di Lingkungan Galangan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Biofouling merupakan proses akumulasi organisme yang tidak diinginkan pada permukaan yang terendam. Organisme biofouling yang menempel pada substrat terendam seperti lambung kapal dapat menyebabkan potensi penurunan kecepatan jelajah, kenaikan konsumsi biaya bahan bakar, kenaikan emisi gas rumah kaca, hingga kenaikan frekuensi docking yang menimbulkan lonjakan biaya perawatan kapal. Penelitian ini bertujuan untuk mengevaluasi efektivitas cat antifouling Self-Polishing Copolymer (SPC) dengan penggunaan biosida pendukung DCOIT (4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one) dalam mengendalikan pertumbuhan organisme tersebut. DCOIT dipilih karena memiliki keunggulan yaitu dapat cepat terdegradasi di lingkungan laut. Fokus utama penelitian adalah menganalisis signifikansi pengaruh DCOIT, periode perendaman, dan lokasi perendaman terhadap persentase cakupan dan fouling rating pada panel uji. Selain itu, penelitian ini juga menguji korelasi antara parameter air laut berupa klorida, amonium, oksigen terlarut, dan turbiditas terhadap jenis biofouling. Hasil temuan ini diharapkan menjadi referensi penting bagi industri maritim mengenai pertimbangan penggunaan DCOIT sebagai biosida pendukung dan panduan dalam pemilihan lokasi sandar yang optimal untuk meminimalisir akumulasi biofouling.
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Biofouling is the phenomenon of unwanted organisms attaching themselves and accumulating on a submerged substrate. Biofouling organisms that attach themselves to submerged substrates such as ship hulls can potentially reduce cruising speed, increase fuel consumption, increase greenhouse gas emissions, and increase the frequency of docking, which leads to a surge in ship maintenance costs. This study aims to evaluate the effectiveness of Self-Polishing Copolymer (SPC) antifouling paint using DCOIT (4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one) as a booster biocide in controlling the growth of these organisms. DCOIT was chosen because it degrades rapidly in the marine environment, thereby reducing its long-term environmental persistence. The main focus of this study is to analyze the significance of the influence of DCOIT, immersion period, and immersion location on the percentage of coverage and fouling rating on the test panel. In addition, this study also tested the correlation between seawater quality parameters in the form of chlorine, ammonium, dissolved oxygen, and turbidity to each type of biofouling. These findings are expected to serve as an important reference for the maritime industry regarding the consideration of using DCOIT as a booster biocide and guidance in selecting the optimal berthing location to minimize the accumulation of biofouling.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Antifouling Coating, Biofouling, Biosida Pendukung, DCOIT, Parameter Air Laut, Cakupan Biofouling, Fouling Rating =================================================================== Antifouling Coating, Biofouling, Booster Biocide, DCOIT, Seawater Parameters, Biofouling Coverage, Fouling Rating |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9.C57 Coatings |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Hafiz Musyaffa Eswandanu |
| Date Deposited: | 27 Jul 2026 01:46 |
| Last Modified: | 27 Jul 2026 04:30 |
| URI: | http://repository.its.ac.id/id/eprint/137510 |
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