Electronic Theses and Dissertation

Prarancangan pabrik aluminium sulfat tetradekahidrat (al2(so4)3.14h2o) menggunakan aluminium hidroksida (al(oh)3) dan asam sulfat (h2so4) sebagai bahan baku. pabrik ini dirancang memproduksi aluminium sulfat tetradekahidrat melalui proses giulini. kapasitas produksi yang direncanakan adalah 47.000 ton/tahun dengan waktu operasi 330 hari/tahun dan 24 jam/hari. bentuk perusahaan yang direncanakan adalah perseroan terbatas (pt) dengan struktur organisasi berupa garis dan staf. kebutuhan tenaga kerja untuk menjalankan perusahaan ini berjumlah 158 orang. pabrik ini direncanakan didirikan di jl. bintang alam raya, desa telukjambe, kecamatan telukjambe timur, kabupaten karawang, provinsi jawa barat dengan luas tanah 25.000 m2. sumber air pabrik ini berasal dari sungai citarum, sedangkan listrik diperoleh dari perusahaan listrik negara (pln). hasil analisa ekonomi yang diperoleh adalah sebagai berikut: a. fixed capital investment (fci) = rp603.046.539.044,07 b. working capital investment (wci) = rp106.419.977.478,37 c. total capital investment (tci) = rp709.466.516.522,44 d. total production cost (tpc) = rp3.153.584.711.540,65 e. total income = rp3.612.678.386.041,56 f. laba bersih = rp358.093.066.110,71 g. pay out time (pot) = 2,7 tahun h. break event point (bep) = 32,65% i. internal rate of return (irr) = 39,54% berdasarkan studi kelayakan teknis dan ekonomis di atas, maka dapat disimpulkan bahwa prarancangan pabrik aluminium sulfat tetradekahidrat ini layak untuk dilanjutkan ke tahap perancangan.

The preliminary design of an aluminum sulfate tetradecahydrate (Al2(SO4)3.14H2O) plant utilizes aluminum hydroxide (Al(OH)3) and sulfuric acid (H2SO4) as raw materials. The plant is designed to produce aluminum sulfate tetradecahydrate through the Giulini process. The planned production capacity is 47,000 tons per year, with an operating schedule of 330 days per year and 24 hours per day. The company is established as a Limited Liability Company (Perseroan Terbatas/PT) with a line-and-staff organizational structure. The plant requires a total workforce of 158 employees. The proposed plant site is located on Bintang Alam Raya Street, Telukjambe Village, East Telukjambe District, Karawang Regency, West Java Province, covering an area of 25,000 m². The plant's water supply is sourced from the Citarum River, while electricity is supplied by the State Electricity Company. a. Fixed Capital Investment (FCI) = Rp603.046.539.044,07 b. Working Capital Investment (WCI) = Rp106.419.977.478,37 c. Total Capital Investment (TCI) = Rp709.466.516.522,44 d. Total Production Cost (TPC) = Rp3.153.584.711.540,65 e. Total Income = Rp3.612.678.386.041,56 f. Net Profit = Rp358.093.066.110,71 g. Pay Out Time (POT) = 2.7 years h. Break Event Point (BEP) = 32,65% i. Internal Rate of Return (IRR) = 39,54% Based on the technical and economic feasibility analysis, it can be concluded that the preliminary design of the aluminum sulfate tetradecahydrate plant is technically and economically feasible and, therefore, worthy of proceeding to the detailed engineering design stage.