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INDONESIA
Seminar Nasional Teknik Kimia Kejuangan
Published by Universitas Pembangunan Nasional Veteran Yogyakarta
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science
Prosiding Seminar Nasional Teknik Kimia Kejuangan adalah media online dari makalah yang telah diseminarkan pada acara Seminar Nasional Teknik Kimia “Kejuangan” (SNTKK). SNTKK merupakan agenda tahunan yang diselenggarakan oleh Program Studi Teknik Kimia FTI UPN ”Veteran” Yogyakarta. Seminar ini merupakan sarana komunikasi bagi para peneliti dari perguruan tinggi, institusi pendidikan, serta lembaga penelitian maupun industri, dalam mengembangkan teknologi kimia untuk pengolahan sumber daya alam Indonesia.
Arjuna Subject : -
Articles 521 Documents
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Proses Inaktivasi Enzim Gaultherase Melalui Mixed-Drying Extraction untuk Pengambilan Gaultherin Sebagai Antikanker Priyono Kusumo
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Research destination is to determine the production process of gaultherin from gandapura in optimum manner through gaultherase enzyme inactivation techniques with mixed-drying extraction technology. Research activities include: gaultherin productivity studies and optimization of process parameters. Efforts to improve gaultherin productivity including the effect of addition of drying agent (magnesium sulfate, sodium sulfate, calcium chloride, and calcium sulfate). Optimization study was conducted using a factorial design 2n. Determination of influential variables by using normal probability plots, after the calculation of the main effects and interaction calculations. During the process, measure the content of gaultherin, methyl salicylate, salicylic acid using a spectrophotometer or HPLC-MS. The results show that increasing the concentration of drying agent and ethanol causes greater gaultherin acquisition, especially with the addition of calcium chloride. Results stated that the variable of mixed-drying process extraction for enzyme inactivation of gaultherase which most influential is the pH and concentration of alcohol. The greater pH of extraction, will enhance the result of the active compound gaultherin. The greater solvent concentration, gaultherin that extracted increasing. Optimum Gaultherin production achieved at a concentration 90% of ethanol with the acquisition of active compound 13.10% .
Proses Pengolahan dan Pemurnian Bijih Tembaga dengan Cara Konvensional dan Biomining Anton Sudiyanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Indonesia has ore reserves of copper (Cu) which is very large, most of the reserves with porphyry Cu content in the ore vary between 0.1 - 2%. In addition to Cu, usually ore associated with other metals such as gold (A), silver (Ag) and rare metals such as Palladium (Pd ), Selenium ( Se ) and others. Several types of Cu ore there is Bornite (Cu5FeS4), Calcopyrite (CuFeS2), Covellite (CuS) with some impurities such as pyrite (FeS2), Magnetite (Fe3O4), hematite (Fe2O3), or Quartz (SiO2). Caused most of the sulfide minerals in the conventional treatment (physical - chemical ) would be more effective if the initial process is " concentrating "using flotation and gravity if it is in many ores of gold (Au) in the form of Native. Furthermore, conventional purification process using Pyro way Metallurgy, Metallurgy and Electro Hydro Metallurgy. Biomining mineral extraction using bacteria. Definition biomining intact is the process of extracting valuable minerals from ore or tailings from mining rest with the help of microorganisms , especially bacteria. Biomining process copper ore by leaching microbial -based reaction that uses bacteria Acidithiobacillus ferrooxidans biomining is an effective technology and environmentally friendly which can be used for purification of ore and precious metals in concentrate.
The Pre-chromatography Purification of Crude Oleoresin of Phaleria Macrocarpa Fruit Extracts by Using 70%-v/v Ethanol Susiana Prasetyo S
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Phaleria macrocarpa is a native Indonesian plant which originated from Papua. The fruit posseses a high efficacy for health benefits due to the abundant content of antioxidant compounds, such as flavonoids, tanins, alkaloids, terpenoids and saponins. This research objective was to separate the various bioactive compounds in the extract (crude oleoresin) of the Phaleria macrocarpa fruit into several fractions, prior to a HPLC fraction collector, by using several selective solvents. The separation process utilized a liquid-liquid extraction method by an oscillation equipment for 1-2 hours. The extractions were carried out using F : S ratio of 1:1, at room temperature with 70%-v/v ethanol. The crude extract of each extract and raffinate was analyzed quantitatively. The quantitative analysis methods used were Obadoni and Ochuko for saponins test, n-hekxane separation for terpenoids test, and aluminium ion for flavonoids test. Folin-Ciocalteu and Sreevidya and Mehrotra methods were utilized for tannins and alkaloids tests, respectively. Meanwhile, the antioxidant activity was measured by DPPH method. The experimental results showed that the hexane fraction (first partition) was able to extract the resin component and selective enough to extract terpenoid groups (steroids) with Kd = 9.5960. The second partition, using chloroform solvent was not successful because of all the phytochemical components were evenly distributed in both fractions. Meanwhile, n-butanol fraction (third partition) selectively extract a large amount of flavonoid groups with Kd = 5.4880 but none of saponin was detected in this fraction. Flavonoid groups was found as the dominant component in the fruit extract contributed to the high antioxidant activity.
Pemurnian Pasir Silika dengan Metode Leaching Asam dan bantuan Sonikasi Sumarno Sumarno
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Silica sand is one of the natural materials that abundant in Indonesia . In nature, silica is difficult to obtain a high purity compound because it has a high affinity with the others oxide. Purification methode of silica can be done in several ways, one of which is sonication assisted acid leaching methode. In general, leaching medium used a strong acids such as HCl and H2SO4. The using of strong acids will produce waste that requires special handling as B3 waste. So in this research, used aquadest and oxalic acid as the leaching medium are more environmentally. The research have purpose to study the effect of sonication on purification process of silica sand with aquadest and oxalic acid leaching medium to obtain high purity silica sand. The product optained were analyzed by Scanning Electron Microscopy (SEM) and X-Ray Fluorescence (XRF). XRF analysis results showed that the content in the silica sand increased from 97.75% to 99.40% with aquadest leaching medium and 99.46% with oxalic acid leaching medium with the same sonication time is 120 minutes. While the results of SEM analysis showed morphological changes of silica sand after sonication process both with distilled water leaching media and with oxalic acid.
Modelling Self-Heating in Compost Piles: Application of Reaction Engineering Approach Shierin Shierin
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Spontaneous combustion in compost piles is the main cause of fires at compost facilities or landfill sites. Hence, the increase in temperature in compost piles, known as self-heating phenomenon, has to be considered thoroughly for safety aspect at the facilities. One of the most reliable methods for estimating the safety aspect is modelling the self-heating in compost piles. In this study, a new model is proposed to better represent self-heating phenomenon. The proposed model incorporates simultaneous heat and mass transfer coupled with biological and chemical heat generations. For better accuracy of the modelling, the evaporation term implementing the Reaction Engineering Approach (REA) is used here to yield a set of heat and mass conservation which consists of mass balance of water vapor, liquid water, oxygen, and heat balance. The set of partial differential equations is solved using finite element solver Comsol Multiphysics to generate the spatial profiles of concentration of oxygen, water vapor, water liquid, and heat balance inside the compost piles. Benchmarks against the experimental data indicate that the results of the modelling match well with the experimental data. Therefore the proposed model can be implemented to predict safe storage of compost piles under various configurations.
Pengolahan Limbah Tekstil Menggunakan Elektrokoagulasi Tuani Lidiawati S
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The study investigates the influence of operating parameters such as initial pH and distance between electrode on COD and color removal from a laboratory scale batch electrocoagulation reactor using aluminum plate (Al) with a broad cross section of 80x80 mm2 and 2 mm thick as the electrode. Synthetic wastewater Direc Red 12 B® and Direc Black Ex® is used in the study with a volume of 800 mL. The variations of experiments are distance between electrodes (2 cm, 3 cm and 4 cm) and the initial pH (4, 5, 6,7). The samples are taken every 5 minutes for 60 minutes operating time. The results of the study indicate that electrocoagulation optimal condition occurs at electrode distance 2 cm and initial pH 5 with the color removal efficiency 94.5% of the Direc Red 12 B® and 98.3% of Black Direc Ex®, COD removal 91.25% of Direc Red 12 B® and 84.92% of Direc Black Ex®.
Teknologi Pengolahan Buah untuk Desa Duyung, Trawas, Mojokerto Rudy Agustriyanto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Potensi dan Aplikasi Diafiltrasi Pada Bidang Pangan, Perkebunan dan Peternakan Aspriyanto A
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Today, various kinds of membrane-based separation technology regarded as a innovative breakthrough of chemical engineering have been widely invented, demonstrated, used industrially and commercialized to clarify, purify and concentrate wanted and valuable components in food and beverage, agricultural and farming, dairy, and animal product industries. Diafiltration (DF) is an operation mode of a pressure-driven filtrationapplied in hybrid with membrane-based separation in which fresh water or solute-free pure solvent or buffer as dialysate is added to the feed fluid and forced across the membrane together with salts, unwanted microsolutes and impurities. The main purpose of a DF process is to enhance the separation target of membrane-retained macrosolutes from membrane-permeable microsolutes and reduce as much salt, unwanted microsolutes and impurities in the feed fluid as possible. A principle cycle of DF step involves Ultrafiltration (UF) or Nanofiltration (NF) membrane to reduce fluid volumeand increase macrosolute concentration, DF processat constant volume to decrease microsolute concentration and fluid volume reduction to increase macrosolute concentration. The process of DF is discussed in connection with their applications in purification ofcane juice, purification of gelatin, recovery of whey and recovery of fermented mung beans
Potensi Kerang sebagai Katalis Untuk Pembuatan Biodiesel Sri Puji Lestari
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Kebutuhan katalis heterogen saat ini sangat diperlukan mengingat kemudahan akan pemisahannya dengan produk. Katalis heterogen CaO/abu layang merupakan katalis yang dapat digunakan untuk reaksi transesterifikasi pada produksi biodiesel. Katalis ini dihasilkan dari limbah cangkang kerang Anadara granosa dan Paphia textile. Limbah cangkang kerang dimanfaatkan sebagai sumber kalsium karbonat untuk menghasilkan senyawa CaO. Pemanfaatan limbah cangkang kerang dan PLTU untuk katalis CaO/abu layang diharapkan dapat mengurangi biaya produksi biodiesel dan meningkatkan sifat reuseable katalis. Abu layang merupakan garam anorganik dengan kandungan Al2O3 dan SiO2 yang tinggi dapat digunakan sebagai bahan pengemban katalis. Dekomposisi kalsium karbonat dari cangkang kerang yang telah dihaluskan dilakukan dengan cara kalsinasi pada temperatur 800oC selama 3 jam untuk menghasilkan CaO. CaO dilarutkan dalam aquades untuk mendapatkan larutan Ca(OH)2. Ca(OH)2 merupakan senyawa aktif dari katalis CaO/abu layang yang dipreparasi dengan metode impregnasi dengan CaO loading 45% pada temperatur 70oC selama 4 jam dan dikalsinasi pada temperatur 800oC selama 2 jam. Katalis CaO/Abu layang dikarakterisasi dengan XRD dan SEM. Hasil karakterisasi XRD menunjukan puncak CaO, sedangkan hasil SEM menunjukan adanya aglomerasi logam oksida yang terbentuk. Uji aktivitas katalis menghasilkan yield biodiesel sebesar 93% dan 88% untuk sumber CaO Paphia textile dan Anadara granosa.
Proses Pembuatan Gelatin dari Kulit Kepala Sapi dengan Proses Hidrolisis Menggunakan Katalis HCl Tunjung Wahyu Widayati
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2015: Prosiding SNTKK 2015
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Cow leather is widely used as raw material for shoes, jackets, automobile n bag accessories too. But the skin of cow head (scalp) is not widely used. Actually that thing as a potensial and good materials for making gelatin. Gelatin used as a filler constituent in the food industries such as candy, butter and cheese,cakes, bread and meat meals industry. As diversification benefits and increase the economic value, our research done to make gelatin from cow scalp (head of cowhide).Experiment production of gelatin made with 15 gram of starch hydrolizing scalp cow in 400 mL water using HCl catalyst.influence the observes experimental variables is the ratio of reagents, temperature and time of hydrolysis and concentration ol catalyst solution HCl.The experiment result showed that the best condition for the hydrolysis process of scalp cow was at 6 hours at 90oC temperature, using 1,25 mL of 36,5 % HCl catalystwith gelatin production to 7,562 gram.

Page 5 of 53 | Total Record : 521

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