i
ABSTRAK
MUHAMMAD IMAM AL HAKIM : Rancang bangun alat pengaduk sabun cair bahan baku limbah minyak jelantah dibimbing oleh AINUN ROHANAH dan LUKMAN ADLIN HARAHAP.
Proses pembuatan sabun cair bahan baku minyak jelantah merupakan hal menarik untuk diketahui. Penelitian ini bertujuan untuk merancang, membuat, menguji serta menganalisis nilai ekonomis alat pengaduk sabun cair bahan baku minyak jelantah. Parameter yang diamati yaitu kadar air, asam lemak bebas (FFA), bagian tidak larut dalam alkohol, kapasitas alat, rendemen, dan analisis ekonomi.
Dari hasil penelitian diperoleh kapasitas efektif alat sebesar 20,2 l/jam. Rendemen yang didapat sebesar 97,8%. Biaya pembuatan sabun cair dari tahun pertama hingga kelima adalah Rp 735,95/l, Rp 738,08/l, Rp 738,38/l, Rp 739,76 dan Rp 741,24. Break even point pada alat ini sebanyak 1,285 l/tahun. Net present value dengan suku bunga 7,5 % adalah Rp 125.039.610 dan internal rate of return sebesar 47,6%.
Kata kunci : sabun cair, minyak jelantah, kapasitas efektif alat, rendemen, analisis ekonomi
ABSTRACT
MUHAMMAD IMAM AL HAKIM: Design and construction of liquid soap stirrer made from used cooking oil, supervised by AINUN ROHANAH and LUKMAN ADLIN HARAHAP.
The process in making liquid soap from used cooking oil is an interesting thing to know. This research was held to design, construct, test, and analyze economic value of liquid soap stirrer made from used cooking oil. The parameter observed were water content, free fatty acid (FFA), alcohol insoluble part, effective capacity, yield, and economic analysis.
Based on this research, it was summerized that effective capacity of this equipment was 20,2 l/hr. Yield percentage was 97,8%. Basic cost for the first to fifth year were Rp 735,95/l, Rp 738,08/l, Rp 738,38/l, Rp 739,76/l and Rp 741,24/l. Respectively break event point was 1,285 l/year. Net present value with 7,7% rate was Rp 125.039.610 and internal rate of return was 47,6%.
Keywords: liquid soap, used oil cook, effective capacity, yield, economi analysis
