Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal TEKNIK
Faleh Setia Budi
Chemical Engineering Department, Engineering Faculty Jl. Prof. Sudarto, SH, Tembalang-Semarang 50239
Engineering

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
PEMBUATAN PUPUK FOSFAT DARI BATUAN FOSFAT ALAM SECARA ACIDULASI Setia Budi, Faleh; Purbasari, Aprilina
TEKNIK Volume 30, Nomor 2, Tahun 2009
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.274 KB) | DOI: 10.14710/teknik.v30i2.1865

Abstract

Phosphate rock containing P2O5 can be used as raw material of phosphate fertilizer. Phosphate rock canbe found in many areas in Indonesia, but its P2O5-content is relative low. In this research, phosphate rockfrom Rembang (P2O5-content 11.37%) is used as raw material for phosphate fertilizer production byacidulation process using phosphoric acid solution. Operation variables are phosphoric acid concentration(10, 20, 30, 40 %-vol), spraying model of phosphoric acid solution (one hole and many holes), andspraying position of phosphoric acid solution (end, centre, end & centre). The result shows that theincrease of phosphoric acid concentration is proportional to P2O5-content in phosphate fertilizer withhighest P2O5-content in the amount of 18.29%. One-hole spraying model and end-position spraying giveshighest phosphate fertilizer yield in amount of 169.5 grams.
PENGAMBILAN OLEORESIN DARI AMPAS JAHE (HASIL SAMPING PENYULINGAN MINYAK JAHE) DENGAN PROSES EKSTRAKSI Setia Budi, Faleh
TEKNIK Volume 30, Nomor 3, Tahun 2009
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (461.284 KB) | DOI: 10.14710/teknik.v30i3.1888

Abstract

During this time the ginger oil distillation waste are only used as fire wood for the distillation process. It ispredicted that this waste still contain oleoresin. Oleoresin is the mixture fixed oil (3 – 4 %), essential oil (1 – 3%), resin etc. This research aims to find the most affecting variable and the optimum operation condition inthe extraction processing oleoresin from ginger oil distillation waste. The research is planned to use thefactorial design method 2 levels and 3 independent variables i.e.: temperature (30-60 oC), time (2-6 hours)and solvent volume (300/150- 700/150) ml/gr the weight of ginger waste. The experiment quantities whichmust be carried out are 8 runs. The observed parameters are weight, density and refraction index. The threeindependent variables give positive effect/ increase the product and time is the most influential variables. Thenthe optimization process is carried out to get the optimum operation condition by varying the extraction time.The optimum operation condition of oleoresin extraction is 5.5 hours, temperature 60 oC and solvent volume700ml/150 gr the weight of ginger waste. The number of oleoresin which can be obtained volume 4.1 ml,weight oleoresin 2.7 grams, density 0.67 grams/ml, and refraction index 1.4744. GCMS analysis shows thatthe zingeberence content is 14.91%.
PEMBUATAN PUPUK KALIUM-FOSFAT DARI ABU KULIT KAPOK DAN TEPUNG FOSFAT SECARA GRANULASI Purbasari, Aprilina; Setia Budi, Faleh
TEKNIK Volume 29, Nomor 2, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.064 KB) | DOI: 10.14710/teknik.v29i2.1929

Abstract

Kapok-husk ash containing + 28% potassium can be used as raw material of potassium-phosphatefertilizer. In this research, kapok-husk ash is mixed with phosphate powder by granulation process toproduce potassium-phosphate fertilizer. Operation variables are granulation time (4, 7, 10 minutes),kapok-husk content (3, 5, 7, 9 %-w/w), and adhesive liquid type (phosphoric acid solution andaquadest). The result shows that the increasing granulation time is proportional to fertilizer yield;the increasing kapok-husk ash content is proportional to potassium content, but inverselyproportional to phosphate content in fertilizer; and phosphoric acid solution is better than aquadestas adhesive liquid referred to fertilizer yield.
BIOBRIKET DARI CAMPURAN LIMBAH KULIT BIJI METE, SEKAM DAN JERAMI SERTA BUNGKIL JARAK, SEKAM DAN JERAMI Setia Budi, Faleh; Buchori, Luqman
TEKNIK Volume 34, Nomor 1, Tahun 2013
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.942 KB) | DOI: 10.14710/teknik.v34i1.4813

Abstract

The petroleum is the fuel derived from fossil which can not be renewable and the deposit in the earth is not morenow. In the middle 2008, the price of petroleum achieved US$ 147/Barrel because the supply of petroleum toworld market was reduced. This situation forced the appearance of the alternative energy which can replace thefossil fuel in the future. Their result of combustion has low emission so that they can be reduced the pollutionand were environment friendly. Biobriquette is the one alternative energy which expected to be able to replacethe kerosene and LPG. This research aims to get the exactly composition and type in manufacturing ofbiobriquette from cashew nut shell and jatropa shell waste. The variables choose as the independence variablewas the type of waste (cashew nut shell and jatropa shell) and the compositions (40, 60, 80 and 100%). Theothers are the fixed variable such as the size of briquette 4 cm and the total weight/biquette 25 g. The responseor parameters observed in the experiment were the color, the value of calor, the length of combustion and thecolor of fire. The result of experiment showed that composition of the material greatly affected the quality ofbriquette produced. The composition 100% owns the highest calor of combustion. The calor of Jatropa wastewas higher than that of cashew nut shell.
Co-Authors Aprilina Purbasari Luqman Buchori