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Jurnal Teknik Kimia
ISSN : 19780419     EISSN : 26558394     DOI : -
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.
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Articles 274 Documents
PENGARUH KONSENTRASI LARUTAN GARAM DAN WAKTU Kurniawan, Ronny
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.86

Abstract

Catfish is a kind of fish that has high protein rate around 20% mass that can be exploited onthe application knowledge of food biotechnology, and one of protein resources for Indonesia society.The application is as raw material soy sauce making.The experiment of soy sauce making that made of the catfish conducted by pulverizing thecatfish flesh then mixed it up with pulverized pineapple (containing bromelin enzyme) and water. Thecomparison mass is (g):mass (g):volume (ml) with the comparison value 1:2:1 and pH 6-7. All of thematerial has to be put the incubator as long as 3 days with the temperature 50o Keywords : soy sauce, fermentation, catfish, streptococcus lactis bactery, bromelinC. The hydrolysis result added with salt in the concentration 3% (mass/volume), 5% (mass/volume), 9%(mass/volume) and acidbactery lactit streptococcus lactis which further on separated it so it produced the fish soy saucefiltrate.The purpose of this research are to analyze the influence of salt condensation concentrationand the time of processed salt condensation fermentation by using 2 sided variant analysis method andto analyze totalize dissolve nitrogen content and organoleptic test including taste, color and scent toget soy sauce with quality. The result shows the highest protein rate is got on condensationconcentration variation of 3% and 7 day, hydrolysis time with protein rate of 17.95%. While accordingto organoleptic test the sauce which is produced accepted enough by society including taste, scent andcolor.
PEMANFAATAN BONGGOL PISANG UNTUK PEMBUATAN ASAM PHOSPAT Nurma Wahyusi, Kindriari
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.87

Abstract

Banana a tropical and subtropical tree with good prospect found anywhere in Indonesia which easy to cultivateand rapidly. Concerning the chemical composition, the hump banana tree contain phosphorous large enoughe.Using special treatment and adding sulfuric acid alkali, the phosphorous content at the hump banana tree couldbe processed to produce phosphoric acid.The objective of research is to produce phosphoric acid from the hump banana tree waste as the syntheticfertilizer as follows : TSP, NPK etc. it also can be used as sugar cane substance to remove the impurities. Hopethe research will be worthwhile and value for hump banana tree waste.There are two process steps i.e. : The process which contain calcium and phosphorous to compound calciumphosphate. Then the phosphoric acid compound process. It also produces gypsum at the reaction. This research’sresult showed that 3 hours and sulfuric acid concentration of 60 % could reduce phosphorous convertionoptimum i.e. : 0,79 was obtained at ambon banana.Key words : hump banana tree, phosphoric acid.
PENGAMBILAN MINERAL ELEKTROLIT DARI LIMBAH GARAM Hapsari, Nur Hapsari
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.88

Abstract

Bittern is a thick liquid that obtained from crystallization waste that left from salt making process.Bittern contain many minerals including macro mineral micro mineral. This mineral formed because ittakes part in crystallization at salt making process. From the great quantities that bittern contain, theresome minerals that have high that is: Magnesium (Mg), Natrium (Na), Kalium (K), and Calcium (Ca).These four minerals important minerals that needed for human body’s health, so that can be used asmineral ionic supplement that have benefit for human’s health.Electro dialysis membrane is one of ions separation process from some liquid with the use of highelectrical wave through semi permeable membrane that have permeable characteristic for some specificions. This process produce one part that we call“Konsentrat” and the other part we call it “Diluat” . The variable that we are going to use for this research is : bittern concentrations, voltage and timeof operation. And the best research result take place in condition : feed concentration in bittern 1composition, voltage that we used is 2,9 volt and time of operation is 150 minutes and also produce %magnesium (Mg) rejection = 91,9%, % Natrium (Na) rejection = 74,66%, % (K) Kalium rejection =92,88% and % Calcium (Ca) rejection = 96,19%.Key words : bittern, membrane, electro dialysis, concentrate, diluat, rejection
MODEL MATEMATIKA ADSORPSI ZEOLIT ALAM Adi Saputro,E, Pujiastuti,C
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.89

Abstract

Waste Water of electroplating industry contains various dangerous metal ion wich aredangerous for environment, for example Zinc and Nickel. The concentration of those heavy metal ioncan exeed quality standard value of waste water, therefore it needs to be processed before releasedto environmentIn this research, processing of Waste Water of electroplating industry was done by usingzeolite as metal ion adsorbent of Zn. This Research was done by using baffle tank .The purpose of this research was to get mathematics equation of Langmuir and of Freundlichzeolite absorption to Zn ion.. Specified conditions : waste water volume 200ml, baffle rotation 100rpm . with variable done were : Zeolite size, squealer time and zeolite weight. Waste water with zeolitewere swirled during certaintimer; then filtered and the content of Zn ion of the filtrate was analyzed.Early Concentration from waste water ( Zn 2+) is : 113,37 mg / lEquation acquire in this research for zeolite size 40 mesh were as follows :Freundlich equation : ln ( x / m) = 0,3268 c ln - 0,8284, with correlation coefficient of R2 = 0,9262 .While Langmuir equation was :24 , 169 485 , 25) / (+ − =  Keyword : zeolite, waste of electroplating, adsorption, Zn ionwith R2 = 0,99. Based on equation above, zeolite requirement for reducing the content of Zn in electroplating waste water can be calculated, to the wantedconcentrationC m xC
TEKNOLOGI HEMAT ENERGI UNTUK PRODUKSI MULJANI, SRIE
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.90

Abstract

The aim of this study is to calculate energy consumption at ectractive distillation process with saltsand solvent mixture as entrainer to produce fuel grade alcohol (>99.8%w). This process used twocolumn, the main exctractive column and the recovery column. A substantial reduction in the energyconsumption, compared with conventional process, was predicted by using ethylene glycol and salts isNaCl, K2CO3 and CaCl2  2CO3 : 0.05 g/ml or CaCl2  Key words : fuel grade alcohol, extractive distillation, solvent mixture0.75 g/ml or NaCl : 0.13 g/ml, at reflux ratio 1.5.as entrainer. Solvent and feed volum ratio (S/F) are varied in the range 0.3 – 1.4 , concentration salts in solvent are varied in the range 0.03 – 0.55 g salt / ml solvent and refluxratio 0.5 – 2.5. The results show that high S/F ratios increase the energy consumption, temperature ofthe solvent has important effect on distillate composition and energy consumption, this effect dependson the reflux ratio. Effect of salts show that when salts concentration increases, distillate compositionand energy consumption also increase. For distillate composition > 99.8%w, the lower energyconsumption Q = 821 KJ/kg and number of stage 36 (35% lower than conventional process) reachedin S/F ratio 0.9, K
KAJIAN PEMANFAATAN LIMBAH NILAM UNTUK PUPUK CAIR ORGANIK Soraya Santi, Sintha
Jurnal Teknik Kimia Vol 2, No 2 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v2i2.93

Abstract

Waste of the distillation of pogestemon cablin still havet high nutrient content and potentialas a good raw material of organic fertilizer . Rapid composting technology and efficient organicfertilizer will produce high quality compost. This study aim to determine the best conditions in termsof fermentation time 6,10,14,18,22 day and volume of bacteria (EM4): 2,4,8,10% EM4/solution wereadded to the N, P, K most in the process of making liquid fertilizer to use waste leaves the distillationof pogestemon cablin of N, P and K respectively 10.6% weight, 1.19% and 3.08% heavy weight andthe volume EM4 8% and the fermentation time of 14 days.Key words : pogestemon cablin, fermentation, ,liquid organic fertilizer, nitrogen,kalium, phospor
PERBAIKAN KUALITAS MINYAK SAWIT SEBAGAI BAHAN BAKU SABUN MELALUI PROSES PEMUCATAN DENGAN OKSIDASI Budikarjono, Kusno
Jurnal Teknik Kimia Vol 1, No 2 (2007): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v1i2.67

Abstract

Minyak sawit digunakan untuk pembuatan sabun dan deterjen tanpa atau dengan campuranminyak kelapa. Proses pemucatan minyak sawit dapat dilakukan dengan berbagai cara, salahsatunya dengan oksidasi. Cara ini menawarkan alternatif yang dapat digunakan untukmenghindari kehilangan minyak jika digunakan bleaching earth dalam proses pemucatan. Tujuandari penelitian ini adalah mempelajari pengaruh suhu, laju alir udara dan waktu oksidasi padapemucatan minyak sawit dengan proses oksidasi.Hasil penelitian menunjukkan semakin tinggi suhu, semakin besar laju alir udara dansemakin lama waktu oksidasi mengakibatkan semakin besar pengurangan warna. Penguranganwarna maksimal sebesar 85,3%, terjadi pada suhu 110oC, laju alir udara 7,8 l/menit (0,0068 m/s)dan waktu oksidasi 150 menit. Angka penyabunan berkisar antara 194,9 sampai 199,5. Angkaperoksida terbesar adalah 632 mg oksigen/kg minyak pada suhu 180oC, laju alir udara 7,8 l/menit(0,0068 m/s) dan waktu oksidasi 180 menit dan masih belum terbentuk aldehid..Kata kunci : minyak sawit, oksidasi, pemucatan, angka penyabunan, angka peroksida.
ANALISIS PERENCANAAN TENAGA KERJA DI PERUSAHAAN REDRYING TEMBAKAU SARTIN, SARTIN
Jurnal Teknik Kimia Vol 3, No 1 (2008): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v3i1.104

Abstract

Planning of labour is activity of determination of amount and labours types required by an organizations for aperiod of which will come. Therefore planning of labour is with refer to activity related to forecasting of requirement oflabour in a period of to come at one particular organization, cover new labour preparation and utilization which haveis available. Or equally determine the labour movement from position in this time towards position which wanted in aperiod of to come. In this research done by analysis and enumeration concerning planning of labour at company ofredrying tobacco which will make a change is internal that is doing installation of new machine by paying attention tosome policies and purpose of specified by companies. Method which applied is programming linear, while processingwhich implemented is determine and define decision variable then expressed in mathematical symbol, develop(buildaimed at mathematical model is programming linear formulation then calculate objective function for each purpose ofthat is minimizing redundancy and minimize expense where in this enumeration applied by computer software aid QMor windows version 2.2, software for quantitative method, management science or operational research. From resultcalculation and analysis seen that planning of labour with policy for minimizing redundancy and policy for minimizingexpense yield difference of result calculation enough signifikan.Keyword:Planning of labour ( manpower planning), programming linear
TEMPERATURE AND ACETIC ACID CONCENTRATION OPTIMATION IN THE EPOXIDATION REACTION OF PALM OIL METHYL ESTER Emma Savitri, dan Christopher Aditya Sivananda, Edy Purwanto,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.75

Abstract

Vegetable oils are rich in content unsaturated fatty acid from the type of oleic acid, linoleic acid andlinolenic acid that can be converted to epoxide groups. Epoxidized oil has many useful applications such asplastisizer to improve flexibility, elasticity and stability under the influence of heat and radiation. In thisresearch, palm oil was converted first to become palm oil methyl ester (POME), followed by epoxidationreaction to produce epoxidized palm oil methyl ester (EPOME). Response surface method (RSM) was performedfor optimization and to study the influence of reaction temperature and molar ratioPOME/CH3COOH on the conversion reaction and oxirane value. An optimal reactional condition was shownby high oxirane content which was in the form of oxirane counts/number. Epoxidation reaction was run inthe batch reactor using acetic acid as an oxygen carrier. Central Composite Design (CCD) with two independentvariables and two response function was utilized to investigate the effect of input variables. Theresult shows that reaction conversion increased with the rise of reaction temperature and molar ratio ofPOME/CH3COOH before reaching the maximum point, and then it monotonously decreased. The optimaloperating condition for epoxidation reaction was indicated by maximum oxirane value which could bereached by the reaction temperature of 56.3 oC and molar ratio POME/CH3COOH of 1:0.43Key words: epoxidation, methyl ester, oxirane, palm oil
BIOETHANOL FROM PINEAPPLE PEEL WITH SACCHAROMYCES CEREVICEAE MASS AND FERMENTATION TIME VARIATION Nanik Astuti Rahman, Harimbi Setyawati,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.76

Abstract

As a waste from pineapple, pineapple peel still contains high carbohydrate and glucose.The aim of this study was to made bioethanol from pineapple peel with variation fromSaccharomyces cereviceae mass addition and fermentation time variation. The variablesused are Saccaromyces cereviceae mass 20, 30, 40 grams, fermentation pH 4 and 5,andthe length of fermentation time 2, 4, 6, 8, and 10 days. The analysis of the obtained resultsshowed: the initial glucose level of pineapple peel extract 8.5325%, the highest levels ofglucose from fermentation was 8.4275%, at the addition of 30 grams Saccaromyces cerevisiae,length of fermentation time was 2 days, and the highest levels of bioethanol was3.965%, it was acquired on the addition of 30 grams Saccaromyces cerevisiae and lengthof fermentation time 10 days. The conclusion of this study is the addition of Saccaromycescerevisiae and the length of fermentation time give a significant effect on the bioetanolproduced from pineapple peel extract.Key words: bioethanol, saccharomyces cereviceae, pineapple peel

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