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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 89 Documents
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Search results for , issue "2016: Prosiding SNTKK 2016" : 89 Documents clear
Numerical Study of Shell-And-Tube Heat Exchanger Characteristicsin Laminar Flow with Single Segmental Baffle Novan Ardhiyangga; Teguh Hady Ariwibowo; Prima Dewi Permatasari
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Shell-and-tube heat exchangers (STHEs) are one of the most popular heat exchanger due its flexibility to allow wide range pressure and temperature. The shell-sideperforms very complex flow which result in the difficult of analysis. This paper examines the characteristic of shell-side which obtained by adjusting vary of mass flow rates to gain laminar flow condition. A certain STHE with single segmental baffle used in this analysis that run by the stream analysis method developed by Heat Transfer Research Inc. (HTRI). The result shows that the increase value of mass flow rate will increase the shell-side heat transfer coefficient, pressure drop, and heat exchanger effectiveness. The increase value of mass flow rate from 0.1065 kg/s to 0.1775 kg/s will increase the shell-side heat transfer coefficient about 37.56% where minimum and maximum values are 1557.58 and 2142.76 W/m2.K. The shell-side pressure drop also increase from 0.325 kPa to 0.898 kPa or up to 176.31% increase. The heat exchanger effectiveness increase with the lower number of 7.02% from 0.276 to 0.295. From this experiment, it can be inferred that the increase value of mass flow rate in shell-side will be good to the heat exchanger performance, but the increase value of pressure drop must be in consideration too.
Preliminary Study of Formic Acid Synthesis from Biomass Tedi Hudaya; Felicia Kristianti; Tatang Hernas Soerawidjaja
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Hydrogen is considered as one of the energy sources can provide emission-free application. However, one of the difficulties of using hydrogen is the coherent characteristic of hydrogen, that obstruct the efficient and safe storage of the hydrogen. Therefore concepts for the liquid phase storage under ambient condition using formic acid have received many attention, so that formic acid synthesis methods that is economically feasible and enviromentally friendly is need to be known. One of them is oxidation sorbitol to form formic acids. This research will begin with synthesis of H5PV2Mo10O40 as catalyst. Preliminary experiments is done by varying reaction time (15,20, 25, 30, 60, 120, 180 minutes) to get the most favorable time. The main experiments will be done by varying pressure, temperature, and the catalyst’s in the exact reaction time. All of the oxidation reaction product then is analyzed using HPLC. The results show that the conversion of sorbitol is usually achieved at almost 100%, and the maximum yield that is achieved (75,40%) at 25 bar, 1400C, and 0,6% w/w. The effects of temperature to conversion of sorbitol and yield of formic acid is significant. The effect pressure to conversion and yield is significant at 1200C, but slightly unsignificant at the other variation. The effects of catalyst concentration is unsignificant to conversion of sorbitol, but is significant to the yield of formic acid
Heavy Metals Biosorption Phenomena Of Cr, Fe, Zn, Cu, Ni, And Mn on the Biomass of Mixed Bacteria of Bacillus, Pseudomonas, Arthrobacter and Aeromonas Zainus Salimin; Endang Nuraeni
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The bacterial biomass having the capability of ions biosorption is utilized for the treatment of industrial waste water containing ions pollutant. The Extracellular Polymeric Substance (EPS) on the bacteria functions to support that biosorption mechanism. The EPS has the composition of polysaccharides (40-95% of total EPS), protein (1-60%), nucleic acids (1-10%), lipids (1-10%), and polymer of amino acid and other compounds of bacterial origin. The result of experiment indicates that the pH of 7 and process period of 560 hours was the best of process condition giving the decreasing of BOD and COD on the value of 38 and 74 ppm. On the pH of 6 and 8 the value of BOD and COD are 52 and 102 and 47 and 92 respectively
Fouling dan Cleaning Membran Reverse Osmosis Tekanan Rendah untuk Aplikasi Daur Ulang Air Limbah Domestik Retno Dwi Jayanti; I Nyoman Widiasa
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Separation process by reverse osmosis membrane for wastewater reuse is an advantage process because of feasible cost and able to produce high quality of product water. The used of RO membrane on wastewater reuse application is often limited by fouling phenomena, that is the accumulation of some types of foulant on the membrane surface. An understanding of the foulant types and the fouling mechanism is the key to success in RO membrane chemical cleaning. This review discusses numerous works about the fouling mechanisms and cleaning procedures.
Manajemen Perubahan dan Inovasi: Peran Teknologi dalam Pengembangan Sumber Daya Alam M. Syamsul Maarif
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Makalah ini adalah hasil presentasi dari pembicara utama SNTKK 2016
Pengolahan Limbah Jasa Pencucian Kendaraan dengan Metode Koagulasi-Flokulasi Rusdi Rusdi; Wardalia Wardalia
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The treatment of wastewater generated from washing service businees of motor vehicles (WSBMV) by using coagulation and flocculation method was presented in this paper. The purposes of this research were to obtain fresh water (recycle)through treating of wastewater from WSBMV and determine the best dose of each parameter.The wastewater used in this research was obtained from washing service businees “Shop & Drive, NMA Motor” located in Cilegon city.This research was conducted using Jar Test in Laboratory PT. Krakatau Tirta Industri, parameters measured were TSS and surfactants water. Coagulants used were Alum (Al2SO4) 1% and PAC (Poly Alumunium Chlorida) 1%. The dose of coagulantswas varied in ranging of 10 mg/l, 20 mg/l, and 30 mg/l with the conditions of waste without sedimentation and sedimentation for 30 minutes.The results showed thatThe biggest TSS (Total Suspended Solid) removal (99.408%) was obtained at PAC 30 mg/L and sedimentation 30 minutes. Whereas, the biggest surfactant removal (99.976%) was obtained at PAC 10 mg/L and without sedimentation.
Synthesis of Nano Silica Originated from Rice Husks using Sol Gel Method with Methanol as Solvent Daniel Yonathan; Hans Kristianto; Arenst Andreas
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Indonesia is an agricultural country that largely livelihood of the population in plants that produce carbohydrates such as rice, corn. Of the amount of rice produced there abundant agricultural waste. Agricultural wastes are utilized in this study is rice husk. In the rice husks are fairly large silica content is 16-18%. The purpose of this study for the synthesis nano silica from rice husk with the formation of silica phases and stages of formation nano silica. Silica formation stage was conducted using leaching and burning. While the formation stage nano silica conducted using sol gel + HCl 1M. Results are examined is the influence of solvent and aging time on the purity and characteristics nano silica. At this stage of the formation of silica, the leaching process using citric acid and burning at a temperature of 7500C for 5 hours resulted in the structure of amorphous silica and silica purity reached 93.08%. At this stage of formation nano silica with sol gel method using a variation of methanol and aging time. Variations solvent used is 1: 9, 1:16 and 1:19. While variations of aging time used is 1,3 and 6 days. Highest purity silica obtained by the method of sol gel variation of solvent 1: 9 and 1 day aging period at 75.45%. While the smallest nano-sized silica obtained by the sol gel method variation of solvent 1: 9 and aging time of 3 days with a size between 50-1500 nm
Adsorpsi Ion Logam Kromium (Cr (Vi)) Menggunakan Karbon Aktif dari Bahan Baku Kulit Salak Selvya Utama; Hans Kristianto; Arenst Andreas
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Heavy metals are elements which are produced in industrial waste. This heavy metal waste causes pollution to the environment if the content of heavy metals contained therein exceeds the threshold. The toxic’s properties are extremely dangerous for humans if it accumulates in the human body. One of the heavy metals that are produced  is chromium. Several chemical and biological methods to remove heavy metals contained in the waste have been found. The adsorption method is one of the efficient and effective ways to treat heavy metal waste. In this study, activated carbon was prepared from salacca peel. Effects of pH, adsorbent dosage and Cr(VI) concentration on the adsorption of hexavalent chromium were investigated. The results were analyzed with Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich adsorption isotherm models. And kinetic of the adsorption was performed based on pseudo first order, pseudo second order, and intraparticle diffusion equations. From the research, it is known that the optimum conditions for the Chromium(VI) adsorption occurs at pH 2. The adsorption capacity of salacca peel based activated carbons for the removal of hexavalent chromium was found to be 123 mg/g. And the best adsorption isotherm which can represent the adsorption equilibrium is Langmuir isotermal adsorption model. Moreover the data indicated that the adsorption kinetics follow the pseudo second order
Preliminary Study of the Cyclization of Conjugated Unsaturated Fatty Acid Chain in Kemiri Sunan Oil Felicia Elsa; Tedi Hudaya; Tatang Hernas Soerawidjaja
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The excessive usage of crude oil as the prime source of energy has caused oil deposit depletion, and therefore forced the discovery of alternative and renewable fuel resources. Through extensive studies recently, vegetable oils are believed as one of the most promising solution.  Indonesia is a country with fertile land providing an ideal location for the plantation of oil-bearing plants. One of this potential is found in kemiri sunan (Reutealis trisperma)  oil, which contains about 50% conjugated eleostearatic acid, which can be cyclized to form aromatic compounds. In this preliminary research, kemiri sunan oil was first saponified using KOH creating K-soap solution. Mg and Cr salts were then added to this solution in order to substitute the ion K yielding a mixture of Mg soap and Cr(OH)3 base. DEA (solvent) was added to the basic Mg soap at a 4:1 (b/b) ratio while the Cr(OH)3 acted as a catalyst for the cyclization reaction. The purpose of this research was to explore the hidden potentials in kemiri sunan to synthesize an intermediate product of an aromatic compound by varying temperature (100, 150, 200 °C) and reaction time (2, 3.5 and 5 hours). The cyclization products were tested using FTIR giving absorbance peaks at 771.53 or 779.24 cm-1 which were identified as ortho-disubsituted benzene.
Pemanfaatan Bittern sebagai Elektrolit Alternatif pada Sel Aki Bekas Peggy Bunga Safitri; Aprilia Ramona; Abdullah Effendi; Danang Jaya
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

This research was aimed for study the effect of the bittern use as an alternative electrolyte also the reaction time and also the usage duration of accumulator towards the value of resulting electrical conductivity. Bittern contains magnesium sulphate (MgSO4) which when viewed from its molecular structure is able to replace the function of sulfuric acid (H2SO4) electrolyte. Data collection was performed by analyzing sample of bittern and the factors that affect the occurrence of electrochemical processes such as pH, ion concentration of ion Mg+ and ion SO4-, and electrical conductivity that generated with a pH meter, multimeter, spectrometry UV/Vis method, and Spectrometry Atomic Absorption (SAA/SSA flame). The results showed the concentration of Mg+ ion and SO4-ion on Bittern is 2.02 M and 0.3 M with the value of electric potential (Esel) amounted to 1,1189 V. The largest value of electrical conductivity is 1.67 V-3.983 A on the first accumulator with the longest reaction time for 12 days and the best usage duration of accumulator with electrolyte Bittern without recharging is ± 2 times usage.

Page 7 of 9 | Total Record : 89

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