Pra Rancangan Pabrik Pembuatan Biogas dari Sampah Organik Kota Medan dengan Kapasitas 150.000 Ton/Tahun dengan Proses Digesting Anaerob dan Tugas Khusus Rancangan Keteknikan Reaktor Anaerob

Abstract

The pre-designed factory for the production of biogas from Medan city organic waste with an aerobic digestion process has a production capacity of 150,000 tons/year on a calculation basis of I hour of operation, 330 working days for 1 year. There are three processes in the manufacture of biogas namely raw material preparation, digestion process, and purification process The specific task that was completed was the detailed engineering design of the fluidized bed reactor. The designed reactor has the following specifications: • Matetial of Construction : Stainless Steel SA-167, Grade 10 Type 310 • Type : Torispherical dished head • Tank volume : 80647,9 m3 • Tank diameter : 648,06 m • Tank height : 1296 m • Plate thickness : 2,53 in The biogas production plant from medan city organic waste is planned to be established ind medan sunggal, Deli Serdang Regency, North Sumatra Province, with the required land area of 10,392 m2, the form of a Limited Liability Company (PT) business entity led by a main director with a line system organizational structure and staff with The number of workers is 212 people.The results of the economic analysis of the bio-char manufacturing plant from empty palm oil bunches with this slow pyrolysis process are as follows: I. Investment Capital : Rp 551.426.171.762,- 2. Production Cost : Rp 353.630.543.270,­ 3. Net Profit : Rp 370.087.557.032,­ 4. Profit Margin (PM) : 30,488% 5. Break Even Point (BEP) : 41,855% 6. Return on Investment(ROI) : 20,165 %