- state polytechnic of sriwijaya
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The membrane is a tubular porous medium or thin films that are semipermeable and may serve to separate the particles (species) with a molecular size in solution. Species that has a size larger than the membrane pores will be retained,... more
The membrane is a tubular porous medium or thin films that are semipermeable and may serve to separate the particles (species) with a molecular size in solution. Species that has a size larger than the membrane pores will be retained, while species with smaller size will pass through the pores of the membrane (Agustina et al, 2010). According to Nasir, S (2011) is determined by the performance of membrane permeability and selectivity. Factors affecting the permeability is the number and size of pores, the interaction between the membrane and the feed solution, the solution viscosity as well as pressure from the outside. Whereas selectivity is a measure of the ability of a membrane hold a suspense or past a certain suspension. Factors affecting selectivity is the amount of particles that will pass, the interaction between the membranes, the feed solution and pore size. Ceramic membrane is a membrane which is formed from a combination of metal (aluminum, titanium, zirconium) with non-metals in the form of oxides, nutida and carbide. The downside of ceramic membranes is a very difficult process preparation obtain reproducible quality of the final product. The higher flux result in decreased selectivity. While desirable in membrane-based adalah mempertinggi flux and selectivity (Nasir, S. 2011). Objective is to conduct technological innovation preparation of ceramic membranes in terms of raw material used. Technology development of membrane-based ceramic clay. The method used in this research by conducting ceramic membrane preparation using a mixture of 75% clay, zeolite 15%, 5% and 5% iron powder. Mix each crushed, sieved and used as a powder. Then do the mixing, molding and drying at room temperature for 7 days, drying by furnace at a temperature of 850-950 0 C and the resulting ceramic membrane. The results of the preparation of clay-based ceramic membrane obtained characteristics in diameter of 4 cm, outer diameter of 5 cm, a surface area of 314 cm 2 , pore size 0.5 μm, the type of microfiltration membranes, pressure < 2 bar, temperature 20-40 0 C. The conclusion of this study pore size obtained is applied microfiltration membranes for water treatment and waste water with a pressure of between 0.2 to 1 bar obtained flux from 0.2794 to 0.4450 jv.l / minute.m 2 .
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Palm shell is resulted waste from industry process of palm oil which its usage is not maximal. Treatment of palm shell as activated carbon is one of alternative way to treat solid waste of palm shell for giving economy value. The... more
Palm shell is resulted waste from industry process of palm oil which its usage is not maximal. Treatment of palm shell as activated carbon is one of alternative way to treat solid waste of palm shell for giving economy value. The objective of this study is to know the effect of concentration of H 3 PO 4 and activation time on characteristic of activated carbon that resulted. Four activator concentration of H 3 PO 4 (10, 15, 20, dan 25%) during 18, 20, 22, dan 24 hours. The best characteristic based on the standard SII No. 0258-79 and SNI 06-3730-19, is by using activation time during 24 hours with concentration of activator 25%, result activated carbon with inherent moisture 3,76%; ash content 4,22%; volatile matter 10,88%; fixed carbon 81,14%, capacity on iod 877,71 mg/g, and by using isoterm Freundlich, adsorbate number that adsorbed 0,57886 mg/g; 0,39629 mg/g; and 0,26823 mg/g.
ABSTRACT PEAT WATER TREATMENT BY ELECTROCOAGULATION USING ALUMINUM ELECTRODES Pranawati A*, Rusdianasari dan Husaini** *Student of Chemical engineering Polytecnic sriwijaya **Lecturer of chemical engineering Polytechnic... more
ABSTRACT
PEAT WATER TREATMENT BY ELECTROCOAGULATION USING ALUMINUM ELECTRODES
Pranawati A*, Rusdianasari dan Husaini**
*Student of Chemical engineering Polytecnic sriwijaya
**Lecturer of chemical engineering Polytechnic sriwijaya
Peat water is surface water that flooded on area, the area where the presence of piles formed from organic material in a long time. The characteristics of the peat water is having a low pH (3-4) that is highly acid, having a high organic content, having high levels of iron and manganese, and having yellow or dark brown colour (concentrated). One of the peat area in the Kota Terpadu Mandiri (KTM), Ogan Ilir, South Sumatra. The amount of Fe and Mn in peat water is high, that’s why the treatment of peat water to lower concentration of Fe and Mn. The treatment uses electrocoagulation is performed in batch with electrode dimensions 18cm x 6.5cm x 0.2cm and the distance between the electrodes 1cm. The aluminum electrodes are contacted with peat water with varation the current density of 20 A/m2, 40 A/m2, 60 A/m2 and 80 A/m2 and varation the processing time is 30 minutes, 60 minutes, 90 minutes and 120 minutes. The result showed that the optimum pH rise occurs at 40 A/m2 current density with a time of 30 minutes is 7,87 and decrease the effectiveness of each parameter occurs at 20 A/m2 current density with processing time of 120 minutes. The decrease in the effectiveness of TDS is 42.09%, BOD5 34.36% and COD 88.89%, while the decrease in the effectiveness of Fe and Mn was 55.2 % and 90 %. From the results that have been obtained indicate that electrocoagulation method can reduce pollutants which are contained in the peat water. The results of this process meet the standards of Health Ministers RI No 492/Menkes/Per/IV/2010.
Keywords: peat water, electrocoagulation, aluminum electrodes
PEAT WATER TREATMENT BY ELECTROCOAGULATION USING ALUMINUM ELECTRODES
Pranawati A*, Rusdianasari dan Husaini**
*Student of Chemical engineering Polytecnic sriwijaya
**Lecturer of chemical engineering Polytechnic sriwijaya
Peat water is surface water that flooded on area, the area where the presence of piles formed from organic material in a long time. The characteristics of the peat water is having a low pH (3-4) that is highly acid, having a high organic content, having high levels of iron and manganese, and having yellow or dark brown colour (concentrated). One of the peat area in the Kota Terpadu Mandiri (KTM), Ogan Ilir, South Sumatra. The amount of Fe and Mn in peat water is high, that’s why the treatment of peat water to lower concentration of Fe and Mn. The treatment uses electrocoagulation is performed in batch with electrode dimensions 18cm x 6.5cm x 0.2cm and the distance between the electrodes 1cm. The aluminum electrodes are contacted with peat water with varation the current density of 20 A/m2, 40 A/m2, 60 A/m2 and 80 A/m2 and varation the processing time is 30 minutes, 60 minutes, 90 minutes and 120 minutes. The result showed that the optimum pH rise occurs at 40 A/m2 current density with a time of 30 minutes is 7,87 and decrease the effectiveness of each parameter occurs at 20 A/m2 current density with processing time of 120 minutes. The decrease in the effectiveness of TDS is 42.09%, BOD5 34.36% and COD 88.89%, while the decrease in the effectiveness of Fe and Mn was 55.2 % and 90 %. From the results that have been obtained indicate that electrocoagulation method can reduce pollutants which are contained in the peat water. The results of this process meet the standards of Health Ministers RI No 492/Menkes/Per/IV/2010.
Keywords: peat water, electrocoagulation, aluminum electrodes
ABSTRACT PEAT WATER TREATMENT BY ELECTROCOAGULATION USING ALUMINUM ELECTRODES Pranawati A*, Rusdianasari dan Husaini** *Student of Chemical engineering Polytecnic sriwijaya **Lecturer of chemical engineering Polytechnic sriwijaya Peat... more
ABSTRACT
PEAT WATER TREATMENT BY ELECTROCOAGULATION USING ALUMINUM ELECTRODES
Pranawati A*, Rusdianasari dan Husaini**
*Student of Chemical engineering Polytecnic sriwijaya
**Lecturer of chemical engineering Polytechnic sriwijaya
Peat water is surface water that flooded on area, the area where the presence of piles formed from organic material in a long time. The characteristics of the peat water is having a low pH (3-4) that is highly acid, having a high organic content, having high levels of iron and manganese, and having yellow or dark brown colour (concentrated). One of the peat area in the Kota Terpadu Mandiri (KTM), Ogan Ilir, South Sumatra. The amount of Fe and Mn in peat water is high, that’s why the treatment of peat water to lower concentration of Fe and Mn. The treatment uses electrocoagulation is performed in batch with electrode dimensions 18cm x 6.5cm x 0.2cm and the distance between the electrodes 1cm. The aluminum electrodes are contacted with peat water with varation the current density of 20 A/m2, 40 A/m2, 60 A/m2 and 80 A/m2 and varation the processing time is 30 minutes, 60 minutes, 90 minutes and 120 minutes. The result showed that the optimum pH rise occurs at 40 A/m2 current density with a time of 30 minutes is 7,87 and decrease the effectiveness of each parameter occurs at 20 A/m2 current density with processing time of 120 minutes. The decrease in the effectiveness of TDS is 42.09%, BOD5 34.36% and COD 88.89%, while the decrease in the effectiveness of Fe and Mn was 55.2 % and 90 %. From the results that have been obtained indicate that electrocoagulation method can reduce pollutants which are contained in the peat water. The results of this process meet the standards of Health Ministers RI No 492/Menkes/Per/IV/2010.
Keywords: peat water, electrocoagulation, aluminum electrodes
PEAT WATER TREATMENT BY ELECTROCOAGULATION USING ALUMINUM ELECTRODES
Pranawati A*, Rusdianasari dan Husaini**
*Student of Chemical engineering Polytecnic sriwijaya
**Lecturer of chemical engineering Polytechnic sriwijaya
Peat water is surface water that flooded on area, the area where the presence of piles formed from organic material in a long time. The characteristics of the peat water is having a low pH (3-4) that is highly acid, having a high organic content, having high levels of iron and manganese, and having yellow or dark brown colour (concentrated). One of the peat area in the Kota Terpadu Mandiri (KTM), Ogan Ilir, South Sumatra. The amount of Fe and Mn in peat water is high, that’s why the treatment of peat water to lower concentration of Fe and Mn. The treatment uses electrocoagulation is performed in batch with electrode dimensions 18cm x 6.5cm x 0.2cm and the distance between the electrodes 1cm. The aluminum electrodes are contacted with peat water with varation the current density of 20 A/m2, 40 A/m2, 60 A/m2 and 80 A/m2 and varation the processing time is 30 minutes, 60 minutes, 90 minutes and 120 minutes. The result showed that the optimum pH rise occurs at 40 A/m2 current density with a time of 30 minutes is 7,87 and decrease the effectiveness of each parameter occurs at 20 A/m2 current density with processing time of 120 minutes. The decrease in the effectiveness of TDS is 42.09%, BOD5 34.36% and COD 88.89%, while the decrease in the effectiveness of Fe and Mn was 55.2 % and 90 %. From the results that have been obtained indicate that electrocoagulation method can reduce pollutants which are contained in the peat water. The results of this process meet the standards of Health Ministers RI No 492/Menkes/Per/IV/2010.
Keywords: peat water, electrocoagulation, aluminum electrodes