Prarancangan Pabrik Pulp dari Kulit Jagung dengan Proses Soda Menggunakan Bleaching Enzim Lakase Kapasitas Produksi 75.100 Ton/Tahun dan Tugas Khusus Rancangan Keteknikan Detail Mixer Unit Recovery

Abstract

The increasing demand for pulp is causing a raw material crisis in the form of wood, so alternative raw materials are needed. Corn husk is a waste that contains cellulose compounds so that it can be used as an alternative in replacing wood in pulp making. The process in this factory design consists of several stages, namely the preparation of raw materials, the cooking stage using NaOH, the pulp washing and pressing stage, the bleaching stage using the enzyme laccase, the drying stage, pulp packaging and storage, and the recovery stage. Pulp from corn husk is produced with a capacity of 75,100 tons/year and operates for 330 days a year. The location of the factory is planned in the Teluk Dalam District, Asahan Regency, North Sumatra Province, with an area of 18,540,500 m2, a total of 136 employee, with the form of business entity Limited Liability Company (PT) and with a line and staff organisation system. The results of the economic analysis of the Pulp Manufacturing Plant with Soda Process and Bleaching Using Laccase Enzyme are as follows: • Capital Investment (CI) : Rp. 1.172.713.400.629 • Total Cost (TC) : Rp. 1.946.738.951.989 • Total Sales : Rp. 2.328.100.000.000 • Net Income : Rp. 235.796.447.147 • Profit Margin (PM) : 15,562% • Break Even Point (BEP) : 30,883 % • Return on Investment (ROI) : 20,107% • Pay Out Time (POT) : 4,9 year • Return on Network (RON) : 33,512% • Internal Rate of Return (IRR) : 19,267% Based on the results of the economic aspect analysis, it can be concluded that the Pulp Making Plant from Corn Skin with Soda Process Using Bleaching Enzyme Lakase is feasible to establish.