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INDONESIA
Jurnal Teknik Kimia
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
ISSN : 19780419     EISSN : 26558394     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Jurnal Teknik kimia fokus pada proses perpindahan panas dan massa, material maju, teknik reaksi kimia, pengolahan dan pengelolaan limbah, biomassa dan energi, termodinamika, biokimia, elektrokimia, perancangan dan pengendalian proses, proses pencampuran dan pemisahan. Rung lingkup (Scope) Jurnal Teknik Kimia meliputi semua aspek yang berhubungan dengan bidang teknik kimia, ilmu kimia. dan semua proses reaksi kimia.
Arjuna Subject : -
Articles 9 Documents
 1 
Search results for , issue "Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA" : 9 Documents clear
ON THE CALCULATION OF GAS DISTRIBUTION FUNCTION BY UTILIZING TIME DEPENDENT TEMPERATURE Nugroho, Gunawan
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.140

Abstract

The method for determining gas distribution function is reconstructed. In this study, theBoltzmann equation is bypassed by converse method. The temperature change is specified first inorder to determine the distribution function. The argument of this method is explained both byanalytically solving Bolztmann equation and pure probabilistic consideration in statisticalthermodynamics. Boltzmann equation is solved by modeling collision terms with severalassumptions and It is found that the results are similar. On the other hand, probabilistic methodgives no rigorous physical understanding so it offer several justifications about the resultingdistribution function. The calculation shows that the distribution function is totally Maxwellian inall cases. The temperature dependency only affects the peak value and the shape curve. It is foundthat more slender curve is resulted in higher temperature and quick sampling data is required toprobe the rapidly change temperature processes.Key words : Boltzmann equation, modeling collision, probabilistic method, the distributionfunction
HOLLOW FIBER MEMBRANE CHARACTERISTICS AS FILTRATION MEDIA IN LIQUID WASTE PROCESSING WITH ACTIVATED MUD Endah Palupi, Aisyah
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.141

Abstract

Application of submerged membrane bioreactor (BRMt) has advantages over external BRMin the treatment of domestic wastewater, namely in terms of operating energy and membranefouling BRMt proper tank design can minimize fouling and extend the operating time of themembrane. Installation bafel can create a circulation flow of water between the wall andmembrane bioreactor (water lift-type reactor). It is intended to create the shear velocity (shearrate) is high on the membrane surface so that the pile of material on the membrane apart andlowering the hydraulic resistance of fouling layer. Flux on the external BRM BRMt and reachedsteady state, takes less than 60 minutes. This was achieved at 0.1333 bar TMP which is also thebest operating pressure on BRMt, while the optimum TMP on external BRM obtained at 1.45 bar.To obtain a high flux and stable in the long term, the operation of the membrane at BRMt usingaeration rate 12 l / minute with a close distance baffle membranes or 7.5 cm from the wall of thetank to increase the shear rate can reduce the occurrence of fouling.Key words: BRMt, bafel, shear rate, MLSS, filtration
ACTIVATED CARBON PRODUCTION FROM TURF SOIL SANI, SANI
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.144

Abstract

Indonesia is one of the country that proposed as a country tag has the world's largest peat, whilethe carbon content in peat is quite high, namely ± 60%. To increase the economical value of peat in amanner that is processed into activated carbon. This research aims to make activated carbon from thepeat soil and nutrient concentrations studied the influence of activators and activation times for the qualityactivated carbon produced. Raw materials used to make activated carbon is peat derived from centralKalimantan. H2SO4 solution is used as the activator. While Iod solution, a solution of potassium iodideand thiosulphate solution 0.1 N is used as active carbon absorbent testing agent. Set of variables: 550 0Ctemperature carbonization, carbonization time of 2 hours, peat, coal 40 mesh particle size , weight of 100grams of active carbon, the comparison of the char activator 1: 10 and the drying temperature is 120 0C.Carried out activator concentration are 5%, 10%, 15%, 20% and 25% and time of immersion / activationare 1, 1.5, 2, 2.5, 3 (h). Research results are measured from the active carbon absorbent rate of Iodinesolution. Best results absorbed rate measured as 21.88% were obtained in 20% H2SO4 concentration andactivation time of 2.5 hours.Key words: active carbon, peat, activator, carbonization, absorbent rate
STUDY GREEN LIQUID FERTILIZER PRODUCTION FROM HELIANTHUS A.L AND MUNTINGIA C.L PLANT Caecillia Pujiastuti, Ketut Sumada
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.145

Abstract

Indonesia has many kinds of plants that can be utilized as an alternative raw materialliquid and solid fertilizer production. several types of plants that can be used as an alternative rawmaterial production of fertilizer is "Plants and Helianthus Muntingia CL A. L. Both types of plantson the leaves / twigs contain various types of ions such as ion Nitrogen (N), Phosphorous (P),Potassium (K), Magnesium (Mg) and calcium (Ca) so that this plant can be used as fertilizer. Inthis study, plant leaf composting process but do not do the extraction and fermentation processesthat run simultaneously. Solvent extraction process carried out with water, acid and sodiumphosphate hipophosphate with certain concentrations, whereas the process of fermentationwithout addition of microorganisms, known as "Self Fermentation".Extraction and fermentationprocess can accelerate the acquisition of fertilizers and facilitate the transport of ions inplants. The purpose of this study is to examine an alternative type of raw material production offertilizer, type and concentration of solvent, extraction time and fermentation, and leaf weightratio and the best solvent and the quality of manure produced. From the survey results revealedboth types of plants can be utilized as raw material for fertilizer, the best type of solvent with theconcentration of sodium hipophospahte 0.75%, extraction time and 50 days of fermentation andquality of the resulting liquid fertilizer for plants Plants Muntingia CL: ion N: 0 , 29%, PO4:0.37%, K: 0.55%, Mg: 0.11% and Ca: 0.025%, while for the plant Helianthus A. L ions N: 0.36%,PO4: 0.545%, K: 0.79%, Mg: 0.075% and Ca: 0.028% and on applications to rice plants knownto both types of green liquid fertilizer can increase the production of grain that is a liquidfertilizer Plants of Helianthus AL of 41.3% and Plants Muntingia CL by 29.9% compared with theuse of chemical fertilizers (urea, SP-36 and KCl), need for green manure liquid 1 liter per 100 m2of land.Key words: Muntingia CL, Helianthus AL, Fertilizer, Extraction and Fermentation.
HYDROLYSIS OF STARCH SACCHARIDES FROM SWEET POTATOES USING ENZYME Risnoyatiningsih, Sri
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.146

Abstract

Glucose is a monosaccharide that is widely available in fruits, and plants obtained throughthe hydrolysis of starch saccharides using enzymes. Sweet potato starch hydrolysis is run by threeneckflask equipped with a stirrer. At stage Liquifikasi, three neck flask inserted into a solution ofstarch which has been set temperature and pH plus HCI and heated, then added α-amylase enzymein a certain time.Saccharification second stage, where the results liquifikasi cooled, set thetemperature and pH on certain conditions. Giukoamilase enzyme is then added to the volumeaccording to the specified variable, and incubated at a given time. At a certain time interval wastaken a few examples of the analyzed samples to be analyzed glucose levels. Process behaviorobserved in this study were changes in temperature, hydrolysis time and the addition of enzymes,the best hydrolysis results obtained at 60 0C, pH 4.5 and the addition of the enzyme glucoamylase,07 ml and the time hidrilisis 5 days with glucose levels reaching 5.65% and conversion yield of66.8% and 22.59%.Key words: Sweet Potato Starch, Liquifikasi, sakrifikasi, glucose
UTILIZATION OF SOLID WASTE LEATHER INDUSTRY AS RAW MATERIAL MAKING SOAP Suci Perwitasari, Dyah
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.147

Abstract

With the increase in the development of technology, then today often products from a factorythat various forms in the market in order to satisfies the consumer. For example was the number of soapproducts that emerged. Because of that as the new alternative that is looking for the alternative base forthe production base of soap. The alternative that will be developed was the production of soap from thatis fat. This research was to make laundry detergent by making use of the waste of the skin industry. Wasbased on results of the analysis it was known the best condition was achieved at the time of the increase7 gram and the increase KOH 15 gram with the level of free alkali 0.094 %, fat not 1.80 %, and thenumber fatty acid 68.7 %. Meaning that at the moment the condition for the quality of laundry detergentbased on the Standard of Nasional Indonesia could be filled.Key words: solid waste , skin industry,KOH, fatty acid, soap.
PRODUCTION PROCESS OF LIQUID FERTILIZER FROM BANANA TRUNK Suprihatin, Suprihatin
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.148

Abstract

Banana a plant that many grow in Indonesia. Utilization of banana mostly just takes the fruitand leaves, while the trunk of banana has not been much used. The existence of Ca, P and K in bananatrunk, then the banana trunk can be used as alternative raw material for the production of liquidfertilizer. Produce liquid fertilizer from banana trunk done with the extraction process using a processtemperature of 700C and stirring speed of 240 rpm. Results from the extraction process to analyzelevels of Ca, P and K. Where available Ca content: 16.2% weight, P content: 30.05% weight and Kcontent: 21.5% weight with volume 600 ml of solvent and 15 minutes of stirring time.Key words: banana, liquid fertilizer, extraction. , alternative fertilizer
ISOLATION STUDY OF EFFICIENT α - CELLULOSE FROM WASTE PLANT STEM MANIHOT ESCULENTA CRANTZ Puspita Erka Tamara,, Ketut Sumada,
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.149

Abstract

Waste Manihot esculenta Crantz stems of plants is one of the waste has a high cellulose content. However, current waste plant Manihot esculenta Crantz stems only become organic waste that has not been fully utilized. The study is expected to utilize waste Manihot esculenta Crantz plant stems to produce α-cellulose can be used for paper and solve the problem of the environment especially forests. Waste Manihot esculenta Crantz plant stems as a raw material containing fiber 65.38%, 29.01% leather waste, waste cambium levels of 5.61% and 56.82% α-cellulose. Stages of research to produce α-cellulose include prehidrolisis stage, the stage of delignification, bleaching stages, and analysis of α-cellulose. At this stage delignification used NaOH, Na2SO3, Na2SO4 with varying concentrations of 5, 10, 15, 20, 25% by weight as degrading lignin which is then followed by bleaching stage using H2O2 2% and 5% NaOCl to get a pure α-cellulose. The best results with α-cellulose content of 90.41% in the delignification process Na2SO3 with 20% using 2% H2O2 bleaching. Key words: Waste Plant Manihot esculenta Crantz Trunk, delignification, bleaching, α-cellulose
METYL ESTER PRODUCTION IN ASLANT SEALED TRANESTERIFICATION REACTOR Mulyadi, Edi
Jurnal Teknik Kimia Vol 5, No 2 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v5i2.150

Abstract

Biodiesel, the environment friendly substitute alternative for solar, is made from a resource which can be renewed. Exploiting off grade fish oil as raw material for biodiesel represent the grand breakthrough in increasing value of waste industrial fish. According to research funded by PT Rekayasa Energi Alternative Mandiri (PT. REAM) and DP2M Dikti, industrial scale efficiency can be reached by continuous esterifiications buffle reactor in series with transesterifications sliding reactor. Biodiesel production was done at a reactor prototype which has capacity of 20 liter/hour.From all variables studied, it seemed that temperature and catalyst concentration had the highest effect on the methyl esters conversion, so these variables are controlling parameters. The optimized set of conditions were sodium methoxide (NaOCH3) as the catalyst at a concentration of 0.2 % volume, reaction temperature of 60°C, and 60 menute. The experiments resulted in an average product yield of 94.2%. Biodiesel density of 0.8898 kg/m3 , Iodine number of 7.4, flash point 272 oC, and pour point of 2oC Key words: biodiesel, slanted baffles reactor, transesterification

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