Abstract
The sago fiber waste is promising as an active carbon material which has a high adsorption in purifying water process. The objective of this research was to make activated carbon from sago fiber waste to be applied for water purification and iron (Fe) adsorption with various of contact time. The carbon activation process uses Phosphoric Acid (H3PO4) and calcined at 800 °C for 2 hours. After drying, then analyzed the water content and ash content. Furthermore, surface morphology testing was carried out using SEM. The application of activated carbon was carried out in dig well water purification and filtering iron (Fe) based on variations in contact time of 10 minutes, 20 minutes, 30 minutes and 40 minutes. Analysis of water content of activated carbon was carried out 3 times with an average value of 3.9662%. Ash content analysis aims to determine the metal oxide content in activated carbon. Analysis of the ash content of activated carbon was carried out 3 times with an average value of 5.3239%. The average value of ash content meets the quality standards of activated carbon SNI 06-3730-1995 where the standard value of ash content for powdered activated carbon is a maximum of 10%. SEM test results show that the surface of the activated carbon is porous but the size is not uniform. The level of Ferrium (Fe) in water that has gone through the purification process using activated carbon. The most effective contact time was obtained, namely 20 minutes and had met the threshold requirements for water turbidity levels according to Minister of Indonesia health. This means that activated carbon from sago fiber is able to adsorb the material contained in water and also very capable in picking up some bad contents of cloudy and polluted water.
Highlights
Sago is a native plant in Indonesia country
The objective of this research was to make activated carbon from sago fiber waste to be applied for water purification and iron (Fe) adsorption with various of contact time
According to (Lim Jew Kiat, 2006), sago fiber contains residual lignin by 21%, while the cellulose content is 20% and the rest is an extractive substance and ash so that it can be used as activated carbon
Summary
Sago is a native plant in Indonesia country. Sago includes to monocotil plants namely Palmae family, indentity of clan Metroxylon and Sfadiciflorae order. Most utilization of sago plant focuses for starch contained only and one of the staple foods for several regions in Indonesia. One of the parts of sago that has not been used is sago fiber. Crude fiber is part of carbohydrates, mostly derived from plant cell walls and contains cellulose, hemicellulose and lignin(Gopal Krishna; S K Ranjhan, 1980). According to (Lim Jew Kiat, 2006), sago fiber contains residual lignin by 21%, while the cellulose content is 20% and the rest is an extractive substance and ash so that it can be used as activated carbon. Sago fiber has compressive strength which is very supportive in the application of making composite boards (Supu & Jaya, 2018)
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