The possibility of organic and amino acid production from the treatment of sludge and fish waste using water at sub critical conditions was investigated. The results indicated that at sub-critical conditions, where the ion product of water went…
Process variables were optimized for the production of lactic acid from cassava by Streptococcus bovis for batch and continuous fermentations. In the batch fermentation, maximum yield 82.5% and maximum lactic acid productivity 2.43 was achieved at 39…
In this work, the ultrasound-assisted transesterification of used frying oil (UFO) was studied. A two-step pretreatment of degumming and esterification was conducted to prepare UFO as raw material for transesterification. The esterification and…
Formic acid pulping of oil palm frond was conducted to study the influence of process variables (formic acid concentration, hydrogen peroxide concentration, and pulping time) on the properties of pulp produced (yield pulp and lignin content). A…
Ammonia biosorption by using Enceng Gondok, Eichhornia crassipes, was conducted in outdoor laboratory with objective to study the influence residence time and plant age to ammonia biosorption rate. The research uses reactor test consisting of wet…
Application of membrane technology for separation processes has been an efficient optional to produce a high quality of separation product. This process has been widely using in many field of industry. Therefore, knowledge of this membrane…
Proses pembuatan pupuk kalium sulfat umumnya dibuat dari asam klorida dan bahan baku yang mengandung anion sulfat (SO4). Dalam penelitian ini, pembuatan pupuk kalium sulfat dari bahan baku batuan gipsum alam sebagai sumber sulfat dan abu sekam padi…
Phenol is categorized as a refractory pollutant and its presence in water stream is strictly limited according to the government regulation. The present study investigated the degra-dation of phenol in aqueous solution by the effect of ultrasound.…
Oksidasi parsial metana menjadi metanol dan formaldehida menggunakan katalis tembaga molybdenum oksida berpenyangga silica (CuMoO3/SiO2) telah dilakukan. Preparasi katalis dilakukan dengan metode impregnasi. Hasil identifikasi dengan XRD menunjukkan…
The adsorption of an anion dye, methyl orange, from aqueous solutions on polymer based carbon coated monolith was studied in a batch system. The kinetics of adsorption with respect to the initial dye concentration was investigated. Langmuir and…