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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Chemistry Indonesian Journal of Chemical Research IPTEKIN : Jurnal Kebijakan Pembangunan dan Inovasi
Irdoni HS
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering

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Pengaruh Komposisi Katalis H-Zeolit Dan Kecepatan Pengadukan Terhadap Karakteristik Isopropil Oleat Ardiana, Amalia; Nirwana, Nirwana; HS, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Crude palm oil uses to term downstream industries in indonesia still at low, because of that we need to develop in downstream products. In addition, one of them which developed is fatty acid alkyl ester. Downstream products that included in fatty acid alkyl ester is plastisizer. Plastisizer is additive substance that added into polymer to increase flexibility and workability with esterification process. esterification is process between carboxiclic acid and alcohol to form ester and water as byproduct. In this research, plastisizer synthesized by esterification of oleic acid and isopropanol with activated natural zeolit as catalyst. This process was doing with variation of stirrer speed (175, 200 and 225 rpm) and composition of catalyst (12.5, 15 and 17.5%) also as fixed variable is temperature of reaction at 75 - 80°C, the reaction time of 6 hours and molar ratio of 1:9 oleic acid based. From esterification analysis result we can look that strirrer speed  and composition of catalyst influenced rate of reaction to reach the equlibrium. The best operating condition in this reasearch has got at 17.5% composition of catalyst and 200 rpm of stirrer speed that produce 59.27% conversion. Product that has been produced is methyl ethyl ester, oleic acid, Methyl Ester, Dihidroxypropyl Ester and Isopropyl Ester. Characteriztion of plastisizer that has produced from this research is viscosity at (200 C ) is 4,360 – 5,882 mPa.s and specific gravity  (200 C) is 0,785 – 0,844.  Keywords: Esterification, H-Zeolit , Isopropanol, Oleic Acid, Plasticizer
Pengaruh Waktu Reaksi Dan Rasio Mol Asam Oleat Dengan Isopropanol Pada Sintesa Plastisizer Isopropil Oleat Joni Miharyono; Irdoni HS; Nirwana Nirwana
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Diversity of palm oil product in Indonesia is still limited, therefore it is needed to take an advantage of the development of downstream product of crude palm oil by esterification reaction. Esterification reaction is a reaction between carboxylic acid and alcohol to form ester. One of the emerging downstream product fatty acid alkyl ester is plasticizer. Plasticizer is an additive compound added to polymer to improve flexibility and workability. In this study, plasticizer was synthesized by esterification of oleic acid and isopropanol, using activated natural zeolite catalyst. The process was done with a variation of reaction time (4 hours, 6 hours, and 8 hours) and mole ratio (1: 6, 1: 9, and 1:12), with reaction temperature at  80  oC,  stirring speed at 200 rpm and 15% of composition of oleic acid based catalyst as fixed variables. From the analysis of the results showed that the esterification reaction time and mole ratio affect the product conversion. The best operating condition obtained  in this research was 4 hours of reaction time and 1:12 of mole ratio which resulted the conversion of reaction was 67.09%. Characteristics of plasticizer produced from this research were viscosity (at 20 oC) 2.405 to 2.803 mPa.s and Specific Gravity (at 20 oC) from 0.863 to 0.872.  Keyword: Plasticizer, Esterification, Oleic Acid, Isopropanol, H-Zeolit
Pengaruh Waktu Ageing Dan Kecepatan Pengadukan Pada Sintesis Hidroksiapatit Dari Cangkang Telur Dengan Metode Presipitasi Rio Andika; Ahmad Fadli; Irdoni HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Hydroxyapatite (HAp) is one of the calcium phosphate compounds are used as biomaterials because of the ceramic material which has a stable properties. The purpose of this study is to study the effect of ageing time and stirring rate of the HAp obtained. HAp from eggshells has been successfully synthesis using precipitation method with variation of ageing time and stirring rate. Eggshells were calcined at 1000 oC for 5 hours to produce calcium oxide (CaO). CaO was dissolved into nitric acid (HNO3) to obtain (Ca(NO3)2), and then mixed slowly into a diamonium hydrogen phosphate solution which was already dissolved into aquabidest. After mixing process is complete, the solution was settling with the variation of ageing time 0 hour, 12 hours, 36 hours and 48 hours and the best condition continued in the second variation of the stirring rate 200 rpm, 250 rpm, 350 rpm and 400 rpm. HAp produced at the ageing time 12 hours is the optimum condition. Bonds of PO43- and OH- shown HAp compounds, also it contained tricalcium phosphate (TCP) and calcium hydroxide (Ca(OH)2) compounds. Morphology of HAp particles had a granular form with a increasing particle size of HAp with the ageing time in the range 60-48 nm, whereas the faster rate of stirring had been produced the particle in the range 47-44 nm.Keywords: ageing time; eggshells, hydroxyapatite; mixing; precipitation
Pengaruh Konsentrasi Completion Fluid Terhadap Laju Swelling Clay Pada Sumur Produksi Minyak Bumi Bramansyah Riswanda; Bahruddin Bahruddin; Irdoni HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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In the process of oil production wells maintenance, sometimes it has to face containing mud (clay) formations and this situation can detain the process of well maintenance and damage downhole equipment, especially pumps because of clay swelling. This study intends to determine the concentration effect of completion fluid to clay swelling and determine the optimum completion fluid concentration In this study, KCl and XCD polymer has been chosen as the inhibiting compound of clay swelling. Concentration used is 2%, 4% and 6% for KCl, 2, 3 and 4 ppm for XCD polymer with a ratio between the solution with the clay is 1:8, 1 9 and 1:10. The temperature used is room temperature of 25° C. The results showed that the rate of swelling occurs most rapidly at 2% KCl ratio of 1:8. The phenomenon of swelling clay to a solution of XCD polymer is very small so it can be considered no swelling that occurs, either in 2, 3 or 4 ppm solution of polymer XCDKeywords: clay, swelling, oil producer well, KCl, XCD polymer
Efektifitas Poly Aluminium Chloride (PAC) Pada Pengolahan Limbah Lumpur Pemboran Sumur Minyak Yustinawati Yustinawati; Nirwana Nirwana; Irdoni HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Handling on waste oil drilling mud in research area uses an integrated sludge waste treatment method known as Mud Centralized Treatment Facility (CMTF). One processing stage performed in CMTF is chemical treatment using aluminum sulfate coagulant where the process of coagulation is optimum yet because there were still contain sediment solids. Poly Aluminium Chloride (PAC) thus becomes an alternative coagulant for the treatment because the main properties of colloidal particles in PAC do coagulation in quickly and optimum pace. Research on the “Effectiveness Coagulant Treatment using Poly Aluminium Chloride on Waste Oil Drilling Mud" aims to evaluate the performance of PAC as coagulant in waste oil drilling mud compare to coagulant Aluminum Sulfate. Jar Test method resulting the optimum conditions of using PAC is on fast stirring speed 140 rpm and slow stirring speed 40 rpm in 6000 ppm (TSS: 84-88%, COD: 62-83% , Oil and grease: 73-75% and NH3: 69-92 %), while using aluminum sulfate in same stirring speed, the optimum result gain in 12,000 ppm (TSS: 34-77% , COD: 36-69% , Oil and grease: 39-55% and NH3: 53-55%). Based on two coagulants test result, the most effective coagulant is using PAC for waste oil drilling mud handling.Key words: Drilling mud, Coagulation, PAC
Sifat Dan Morfologi Bioplastik Berbasis Pati Sagu Dengan Penambahan Filler Clay Dan Plasticizer Gliserol Anugerah Rifaldi; Irdoni Hs; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Bioplastic is one of alternative to relpace comercial plastic that can be harmful to environment. Bioplastic is made to make degradation become easier. One of potential raw material is sago because it has a highest starch component. The aims of this research are the study of impact clay as filler and glycerol as plasticizer to mechanical properties (tensile strenght, elongation, modulus young), hidrophobicity (water uptake), biodegradation and morphology. The synthesis method is solution intercalation of starch, water, filler and plasticizer with variation of filler are 3 (%w/w), 6 (%w/w), 9 (%w/w), 12 (%w/w) and glycerol are 10 (%w/w), 14 (%w/w), 18 (%w/w), 22 (%w/w). The analysis show that filler clay and glycerol give an impact to mechanical properties of bioplastic. the best mechanical properties is on bioplastic with composition 3 % filler and 14 % glycerol with tensile strenght 2.891 Mpa, % elongation 30.99 %, modulus young 9.39 Mpa. The highest hidrophobicity of bioplastic is 85.71% and residual persentation is between 67.39 % to 81.25 % in 8 day. Micrograf analysis shows that filler distribution is not be spread evenly on sago starch matrices.Keywords : bioplastic, clay, filler, glycerol, plasticizer, sago strach
Pengaruh Nisbah Dan Suhu Pencampuran Selulosa Dan Pati Terhadap Sifat Dan Morfologi Bioplastik Berbahan Dasar Pati Umbi Talas Wira Bima Stevent Sembiring; Irdoni HS; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The use of plastic in large quantities impact on environment pollution as the effect of the plastic cesspool accumulation which cannot be decomposed naturally (non-biodegradable). Research bioplastics (biodegradable plastic) based starch done to find alternative to reduce the consumption of conventional plastics. But, the starch has a weakness on mechanical properties. The purpose of this study was to knowing the characteristics of taro starch and cellulose from banana stems, knowing the effect of water ratio, temperature and composition of the cellulose filler on mechanical properties and morphology of the bioplastics products. Manufacture of bioplastics made by the casting method, ie mixing taro tuber starch, glycerol, and cellulose. Bioplastics produced do some analysis, which includes the analysis of the chemical composition, tensile strength (tensile strenght), elongation (elongation at break), water uptake, biodegradation, SEM (Scanning Electron Microscopy) and analyzed using Response Surface Methodology (RSM). The most effected factor was significant to all the responds was the composition cellulose filler which followed by the temperature and water ratio. The best composition is bioplastic with filler cellulose 14,999%b/b, temperature 75,775oC and water rasio 20v/b which is tensile strenght was 6,906 MPa, elongation 10,906%, water uptake 28,491% and biodegradable 54,143%.Keyword : cellulose, glycerol, starch, tensile strength, and water uptake
Pengaruh Penambahan Komposisi Hidroksiapatit Terhadap Pengurangan Massa Membran Jaringan Terpadu Untuk Aplikasi Biomaterial Geo Rayfandy; Jhon Armedi Pinem; Irdoni HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Guided Tissue Regeneration (GTR) is one of the techniques used in periodontitis patients to treat tooth decay which provides an opportunity for the growth of new teeth. The purpose of this study is the synthesis of GTR membrans from chitosan, hydroxyapatite, and PEG and study the effect of variations in the composition of hydroxyapatite respectively 2, 4, and 6 gr. The membran is made from a mixture of chitosan, PEG and hydroxyapatite solution which is stirred until homogeneous. The results of the mixture are printed with a glass plate and characterized by membran biodegradation. The effect of adding hydroxyapatite composition to the GTR membran is increasing membran biodegradation. Keywords: chitosan, GTR, hydroxyapatite, membran, PEG.
Pengaruh Nisbah Polypropylene / Serat Pelepah Sawit Dan Kadar Maleated Polypropylene (MAPP) Terhadap Sifat Dan Morfologi Wood Plastic Composites (WPC) Nurul Aini Thaibil Fadhly; Irdoni HS; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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One of the materials that can be used as a component in the manufacture of Wood Plastic Composite (WPC) is a palm frond fibers. Palm frond is one of the solid waste of oil palmplantations and abundant availability has not been utilized optimally. The purpose of this study was to determine the influence of the ratio of polypropylene (PP) / palm frond fibers and Maleated polypropylene compatibilizer levels of the properties and morphology of WPC. WPC samplesprepared by the method of melt blending between palm frond fibers, PP, Maleated polypropylene (MAPP), and paraffin for 15 minutes at a temperature of 170 ° C and a rotor speed of 80 rpm using Internal Mixer. The size of the palm frond fibers used is 1 cm. While the ratio of the weight of PP/palm frond fibers is 50/50, 60/40 and 70/30 and the addition of MAPP of 0%, 4% and 5%. Testing experiments were prepared to mechanical testing consist of tensile and flexural strength and physical testing consist of density, water absorption, and swelling thickness. Scanning Electron Microscopy was used as a morphology testing. The results showed that the best mechanical properties in a ratio of polypropylene / palm frond fibers (60/40), MAPP (5%), with the value of tensile strength 256.05 kgf/cm2 and flexural strength 598 kgf /cm2.The best physical properties of water absorption at a ratio (60/40) with MAPP (0%) is 0,97%, the density at a ratio (60/40) and MAPP (5%) is 1,07% and swelling thickness at a ratio (50/50) with MAPP (0%) is 0,17%.Keywords: maleated polypropylene, morphology, palm frond fibers, mechanical properties , wood plastic composite
Aktivasi Green Coke Menjadi Karbon Aktif Menggunakan KOH Sebagai Aktivating Reagent Rahmawati Rahmawati; Irdoni HS; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The activated carbon is one of adsorbent which often used in absorption process. This is because the activated carbon has better absorptive capacity of adsorption and surface areathan other adsorbent. One of the potentially material that can be used as a raw material to be activated carbon is green coke because it has 87- 97% carbon content and 250-3000 m2/grsurface area. This research aims to determine the effect of mass comparison of KOH to green coke, and activation time to the characterization of activated carbon. The manufacture ofactivated carbon was carried out with chemical activation method which used KOH as activating reagents. The process was done by mixing the green coke and KOH with a mass ratio variation (1/1; 2/1; 3/1 b/b) and activation time (18, 20, 22 hours). The activatedcarbon was analyzed with proximate analysis (moisture, ash, volatile), activated carbon absorption of the methylene blue, the surface area of BET (Brunauer Emmett Teller) and analysis by using Design Expert v10.0.1. The mass comparison of KOH to green coke and activation time indicated a significant effect to all of responses. On the best condition process (KOH mass comparison to green coke is 3.414:1 and activation time 20 hours) was obtained the best response value for mass yield 85.9%,; water content 7.37%; ash content 3.22%; volatile substance content 6.8%; the absorption of activated carbon to the methylene blue is 137.15 mg/g and surface area is 25,33 m2/gr. The analysis result of surface area determine that KOH mass comparison to green coke and activation time has significant effect to the surface area, it is indicated by the pores which increasingly open and the enhancement of surface area before activationKeyword : activated carbon, chemical treatment, green coke
Co-Authors Adelina Ahmad Fadli Al-Fitri, Mahriandhanie Chika Aminuyati Amri, Idral Anugerah Rifaldi Ardiana, Amalia Artha, Ulfa Dwi Bahruddin Bahruddin Bahruddin Bramansyah Riswanda Buma Gempa Skp, Buma Gempa Chairul Chairul David Hamonangan Dedy Masnur, Dedy Elfrida Ratnawati Fernando S Sihotang Geo Rayfandy Hendri, Zwilla Oktoriana Idral Amri Indra Suharman Inka Novela Jhon Armedi Pinem Joni Miharyono Mers Selly Mudinillah, Adam Muhammad Rivai Nirwana Nirwana Nirwana, Nirwana Nirwana, Nirwana Novita Aprilia Maya Sari, Novita Aprilia Maya Nurul Aini Thaibil Fadhly Rahmad Agung Yanuardhi Rio Andika Riza, Subkhan Sinaga, Hendriyanto Sri Rezeki Muria SUSANTO, RENO Ummy Aisyah Rochaeni Wahyu Okta Rinanda, Wahyu Okta Warman Fatra, Warman Wira Bima Stevent Sembiring Yulia, Indri Yustinawati Yustinawati