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2 results on '"Rame, Rame"'

1. Sel Elektrolisis 3–Kompartemen untuk Ekstraksi Magnesium dan Sulfat dari Sistem Larutan MgSO4–KCl–H2O

Author

Wasino Hadi Rahmanto, Mukhammad Asy’ari, Rame Rame, and Marihati Marihati

Subjects
sel elektrolisis, 3–kompartemen, magnesium, sistem larutan mgso4–kcl–h2o, Chemistry, QD1-999
Abstract

Extraction of magnesium and sulfate from MgSO4–KCl–H2O solution system of 0.1 M salt concentration has been conducted. The 3–compartment electrolytic cell model was designed to fulfill the purpose. The cell is constructed from aquarium plastic box of 417 mL capacity divided into three compartments. Each compartment is separated by fixed plastic wall. One of the compartment with no electrode (mid compartment) was connected either to anodic (left) and cathodic (right) compartment using double filter paper strip of 2 x 6 (in cm) dimension. Electrolysis was performed in atmospheric environment under the 6 volt external electric potential using 7A Montana power supply. Experimental results show that electrolysis systems provide good separation of magnesium and sulfate from solution. Magnesium in the form of Mg(OH)2 and sulfate as H2SO4 has been obtained in about 92 % yield. Clear solution in the mid compartment show the absence of salt residues; both of cationic and anionic species migrate totally toward cathodic and anodic compartment respectively.

Published
2006
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2. High Performance of Enzymatic Bioprocess for Production of Biomassed-based Bioethanol of Sago Palm Fiber Waste

Author

Nani Harihastuti, Silvy Djayanti, and Rame Rame

Subjects
Municipal solid waste, Chemistry, Biomass, food and beverages, Bioethanol, Sago palm, Raw material, Pulp and paper industry, complex mixtures, lcsh:TD1-1066, chemistry.chemical_compound, High performance, Bio-enzymatic, Biofuel, Sago palm fiber waste, Hemicellulose, Cellulose, Bioprocess, lcsh:Environmental technology. Sanitary engineering
Abstract

Biomass waste in the form of fiber dregs contains many components of lignocellulose and hemicellulose. Lignocellulose can be used to produce ethanol through enzymatic biotechnology processes. Sago palm fiber industry is one potential industry producing biomass waste in the form of solid waste of fiber dregs (about 30% from the weight of processed raw materials). Solid fiber waste contains crude fiber and lignocellulose compound consists of cellulose (35-50%), hemicellulose ( 20-35%) and lignin (12-20%). This study aimed to utilize solid waste of sago palm fiber as a raw material of bioethanol production through enzymatic biotechnology processes of delignification, saccharification and fermentation which was then purified by distillation process to get ethanol. Delignification, saccharification, and fermentation stages are conducted using Phanerochaete chrysosporus Mushroom, Trichoderma viride fungus, and saccharomyces cerevisiae, respectively and then purified by distillation process (one level) to produce ethanol. The process of saccharification and fermentation process were done in an integrated manner (addition of Trichoderma viride and yeast saccharomyces cereviceae fungi done simultaneously). The weight of raw materials of solid waste fiber treated was about 6 kgs. Alcohol content obtained was about ± 4% (distillation). No water, air, and soil pollution inflicted, more added value, and sustainable were the main benefits of biotech process or bioprocess.

Published
2018

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