STUDI PENAMBAHAN ASAP CAIR SABUT KELAPA SEBAGAI INHIBITOR KERAK KALSIUM KARBONAT (CaCO3) MENGGUNAKAN METODE SEEDED EXPERIMENT
| Main Author: | ALIFA DYAH SAVIRA , 1517011106 |
|---|---|
| Format: | Bachelors NonPeerReviewed Book Report |
| Terbitan: |
FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM
, 2019
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| Subjects: | |
| Online Access: |
http://digilib.unila.ac.id/59275/1/ABSTRAK.pdf http://digilib.unila.ac.id/59275/2/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf http://digilib.unila.ac.id/59275/3/SKRIPSI%20FULL.pdf http://digilib.unila.ac.id/59275/ |
Daftar Isi:
- Pembentukan kerak dapat menimbulkan masalah yang cukup serius pada dinding-dinding peralatan proses aliran fluida seperti water reservoir, heat exchanger, condenser dan evaporator. Salah satu kerak yang sering dijumpai pada peralatan industri yaitu kerak kalsium karbonat (CaCO3). Oleh karena itu, dalam penelitian ini telah dilakukan pengujian asap cair sabut kelapa sebagai inhibitor kerak kalsium karbonat (CaCO3) menggunakan metode seeded experiment pada konsentrasi larutan pertumbuhan CaCO3 sebesar 0,025; 0,038; 0,050; dan 0,063 M serta variasi inhibitor sebesar 5, 15, 25, dan 35%. Nilai persen efektivitas inhibitor tertinggi diperoleh pada konsentrasi larutan pertumbuhan 0,025 M dengan penambahan inhibitor sebanyak 35% dengan persentase 325,77%. Berdasarkan hasil analisis menggunakan Scanning Electron Microscopy (SEM) dan X-Ray Diffraction (XRD) menunjukkan kerak kalsium karbonat (CaCO3) tanpa penambahan inhibitor didominasi oleh kristal fase kalsit dan aragonit, sedangkan setelah penambahan inhibitor terdapat kristal fase kalsit, vaterit, dan sedikit aragonit. Analisis distribusi ukuran partikel menggunakan Particle Size Analyzer (PSA) menunjukkan bahwa distribusi ukuran partikel kerak kalsium karbonat (CaCO3) mengalami penurunan setelah ditambahkan inhibitor, dapat dilihat dari nilai rata-rata (mean) yaitu dari 8,772 μm menjadi 6,364 μm dan nilai tengah (median) yaitu dari 8,187 μm menjadi 5,946 μm. Kata Kunci : Asap Cair, Inhibitor, Sabut Kelapa, CaCO3, Seeded Experiment ABSTRACT Scale formation can cause a serious problem on the walls of fluid flow process equipments such as water reservoir, heat exchanger, condenser and evaporator. One of the most commonly encountered scales that is found in industrial equipment is calcium carbonate (CaCO3). Therefore, in this study, coconut fiber liquid smoke has been tested as an inhibitor of calcium carbonate (CaCO3) scale using seeded experiment method with the concentration of CaCO3 growth solution of 0.025; 0.038; 0.050; and 0.063 M also with inhibitor variations of 5, 15, 25, and 35%. The highest percentage of the inhibitor effectiveness occurred in the concentration of 0.025 M with the addition of 35% inhibitor was 325.77%. Based on the results of Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD), it showed that the calcium carbonate (CaCO3) scale with the absence of inhibitor was dominated by calcite and aragonite crystal phases, while after the addition of inhibitor, it consisted of calcite, vaterite, and less aragonite crystal phases. The analysis of particle size distribution using Particle Size Analyzer (PSA) showed that the the particle size distribution of calcium carbonate (CaCO3) decreased after it was added by inhibitor, based on the mean value from 8.772 μm to 6.364 μm and the median value from 8.187 μm to 5.946 μm. Keywords : Liquid Smoke, Inhibitor, Coconut Coir, CaCO3, Seeded Experiment