3 10 15608 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Bahruddin, Bahruddin Irdoni, Irdoni Muhammad, Muhammad Date A point or period of time associated with an event in the lifecycle of the resource 2014-06-01 Description An account of the resource Kajian terhadap aspek termodinamika suatu sistem campuran polimer-polimer diperlukan untuk mendapatkan informasi mengenai kemampuan pencampuran maksimal dan pemisahan fasa dari sistem campuran tersebut. Penelitian ini bertujuan untuk memperkirakan kemampuan pencampuran sistem karet alam (natural rubber, NR) dan polipropilen (PP) yang ditambahkan kompatibilizer Maleated Polypropylene (MAPP), dimana fasa NR tervulkanisasi dinamik dalam matrik PP dengan cross-link agent sulfur. Estimasi kemampuan pencampuran didasarkan pada energi bebas pencampuran yang dihitung dengan persamaan Flory-Huggins. Entalpi pencampuran dan volume molar masing-masing dihitung dengan persamaan van Krevelen dan metode Group Contribution Volume (GCVol). Parameter kelarutan juga dihitung menggunakan metode van Krevelen. Energi bebas pencampuran dihitung pada komposisi NR antara 0 sampai dengan 100% dan suhu 30oC. Proses vulkanisasi fasa NR dianggap menghasilkan jumlah molekul yang berikatan silang sebanyak 1113 dan terjadi secara monosulfidik. Komposisi MAPP divariasikan antara 0 sampai 10% massa, sedangkan jumlah gugus anhydrate (MA) dalam molekul MAPP berkisar antara 1 sampai 5% mol. Hasil perhitungan menunjukkan bahwa penambahan MAPP pada sistem campuran NR/PP dengan fasa NR tervulkanisasi dinamik hanya dapat menurunkan nilai energi bebas pencampuran, namun tidak mengubah sifat ketidakmampuan campurnya. Kadar MA dalam MAPP relatif tidak mempengaruhi kemampuan pencampuran sistem campuran tersebut. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/2169 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/2169/2123 Rights Information about rights held in and over the resource Copyright (c) 2015 Jurnal Rekayasa Kimia & Lingkungan Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 10, No 1 (2014): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Subject The topic of the resource energi bebas pencampuran; karet alam; kemampuan pencampuran; maleated polypropylene; polipropilen Title A name given to the resource Termodinamika Campuran Polipropilen/Karet Alam yang Ditambahkan Kompatibilizer Maleated Polypropylene Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Nurhayati, Nurhayati Cheng, Chieh-Lun Chang, Jo-Shu Date A point or period of time associated with an event in the lifecycle of the resource 2014-12-01 Description An account of the resource Ethanol as one of renewable energy was being considered an excellent alternative clean-burning fuel to replace gasoline. Continuous ethanol fermentation systems had offered important economic advantages compared to traditional systems. Fermentation rates were significantly improved, especially when continuous fermentation was integrated with cell immobilization techniques to enrich the cells concentration in fermentor. Growing cells of Zymomonas mobilis immobilized in polyvinyl alcohol (PVA) gel beads were employed in an immobilized-cells fermentor for continuous ethanol fermentation from glucose. The glucose loading, dilution rate, and cells loading were varied in order to determine which best condition employed in obtaining both high ethanol production and low residual glucose with high dilution rate. In this study, 20 g/L, 100 g/L, 125 g/L and 150 g/L of glucose concentration and 20% (w/v), 40% (w/v) and 50% (w/v) of cells loading were employed with range of dilution rate at 0.25 to 1 h-1. The most stable production was obtained for 25 days by employing 100 g/L of glucose loading. Meanwhile, the results also exhibited that 125 g/L of glucose loading as well as 40% (w/v) of cells loading yielded high ethanol concentration, high ethanol productivity, and acceptable residual glucose at 62.97 g/L, 15.74 g/L/h and 0.16 g/L, respectively. Furthermore, the dilution rate of 4 hour with 100 g/L and 40% (w/v) of glucose and cells loading was considered as the optimum condition with ethanol production, ethanol productivity and residual glucose obtained were 49.89 g/L, 12.47 g/L/h, and 2.04 g/L, respectively. This recent study investigated ethanol inhibition as well. The present research had proved that high sugar concentration was successfully converted to ethanol. These achieved results were promising for further study. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/2422 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/2422/2281 Rights Information about rights held in and over the resource Copyright (c) 2015 Jurnal Rekayasa Kimia & Lingkungan Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 10, No 2 (2014): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Subject The topic of the resource ethanol; polyvinyl alcohol (PVA); Zymomonas mobilis; immobilized-cells fermenter; glucose fermentation Title A name given to the resource Development of High-Productivity Continuous Ethanol Production using PVA-Immobilized Zymomonas mobilis in an Immobilized-Cells Fermenter Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Iskandar, Iskandar Zaki, Muhammad Mulyati, Sri Fathanah, Umi Sari, Indah Juchairawati, Juchairawati Date A point or period of time associated with an event in the lifecycle of the resource 2010-06-01 Description An account of the resource Preparation of cellulose film from nata de pina, a product of pinapple fermentation, using acetobacter xylinum was done at room temperature for 15 days. The aim of the research is to investigate the effect of sugar concentration and pH on film quality. The fermentation run at sugar concentration of 0, 5, 7.5, 10 and 12.5% and at pH of 3, 5 and 7. Results show that the best nata de pina was obtained at sugar concentration of 10% and pH 5. At these conditions, maximum nata precipitates rendemen was 26,80%, with a moisture content of 80,55%, and the thickness of 3,30 cm. The product nata then can be used to produce cellulose film. The characteristic of the produced film were 8,20 Kgf/mm2 and 11,71% for maximum tensile strength and elongation, respectively.Keywords: acetobacter xylinum, film, nata de pina, selulosa Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/92 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/92/87 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 3 (2010): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Pembuatan Film Selulosa dari Nata de Pina Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Lubis, Mirna Rahmah Date A point or period of time associated with an event in the lifecycle of the resource 2012-12-01 Description An account of the resource Breadfruit starch is a unique resource which benefits for raw material of adhesive making. This study investigates hydrolysis method of breadfruit starch into dextrin with Sulphate Acid (H2SO4) catalysator. Dextrin hydrolysis is carry out in order to produce high dextrin percentage by subtracting the total glucose with free glucose. This study evaluates composition change because of breadfruit starch in various time and temperature. Optimum dextrin percentage is obtained at hydrolysis temperature of 100ºC, hydrolysis time 10 minutes, and 0.5 N H2SO4 concentration, with dextrin percentage of 77.12%. Furthermore, dextrin obtained is added by casein, cold water, triethanolamine, and water in order to form adhesive. The reserch result showed that the shear strength of the dextrin glue is 14 kg/cm2 which is larger than that of glue of Fox brands sold in the market that is only 12.48 kg/cm2. Because there is previous study regarding starch hydrolysis from breadfruit by using chloride acid catalysator, then data in this research show the influence of the sulphate acid usage as catalysator of adhesive. Based on the comparison, it seems that for breadfruit starch hydrolyzed at 100oC for 10 minutes, dextrin produced is less than that obtained by using chloride acid catalysator. The less dextrin percentage from breadfruit starch is caused by not all hydro sulphate ions are dissociated while mixing with starch. The mass balance is necessary to be completed including analysis of the breadfruit starch composition after hydrolysis to determine whether the starch has been degraded or not.Keywords: adhesive, dextrin, hydrolysis, shear strength Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/256 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/256/242 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 9, No 2 (2012): Jurnal Rekayasa Kimia & Lingkungan; 62-67 2356-1661 1412-5064 Title A name given to the resource Hidrolisis Pati Sukun dengan Katalisator H2SO4 untuk Pembuatan Perekat Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Lubis, Mirna Rahmah Zhu, Li Granda, Cesar B. Date A point or period of time associated with an event in the lifecycle of the resource 2007-06-01 Description An account of the resource Resin penukar-anion, Relite MG 1/P, dapat digunakan untuk memisahkan sulfat dalam air laut guna mencegah pembentukan kerak kalsium sulfat pada heat exchanger. Resin tersebut menunjukkan selektivitas sulfat yang tinggi dalam air laut sintetis. Resin yang telah dipakai dapat diregenerasi menggunakan air asin yang dipekatkan dengan asam hingga mencapai pH 4. Untuk waktu pemakaian dan regenerasi yang sama, faktor konsentrasi desalinasi (misalnya 2 hingga 4) menaikkan konsentrasi klorida dalam air asin yang diblowdown. Dengan faktor konsentrasi yang tetap, kenaikan laju alir (pengurangan waktu pemakaian dan regenerasi) memperendah efisiensi regenerasi dan menaikkan pemisahan sulfat. Akibat kelarutan kalsium sulfat yang bersifat terbalik tersebut, temperatur air asin yang tinggi memerlukan pemisahan sulfat yang lebih banyak, yang dapat dicapai dengan mengurangi laju alir air laut. Pengurangan laju alir tersebut membutuhkan peralatan yang lebih besar dan resin yang lebih banyak, sehingga biaya modal bertambah. Untuk pabrik desalinasi dengan kapasitas produksi 1 juta gallon per hari dan faktor konsentrasi sebesar 2, biaya pemisahan sulfat meliputi biaya resin dan biaya peralatan. Biaya tersebut bervariasi dari $0.246 hingga $0.356/kgalon (per ribu galon air yang diproduksi) karena temperatur maksimum air asin berubah dari 140°C menjadi 180°C.Keywords: desalinasi air laut, ion exchange, kalsium sulfat, kerak; mechanical vapor compression (MVC), pemisahan sulfat, resin penukar-anion basa lemah Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/810 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/810/749 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 6, No 1 (2007): Jurnal Rekayasa Kimia & Lingkungan; 13-20 2356-1661 1412-5064 Title A name given to the resource Mencegah Pembentukan Kalsium Sulfat pada Desalinasi Air Laut Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Ginting, Simparmin Date A point or period of time associated with an event in the lifecycle of the resource 2009-12-01 Description An account of the resource Ion exchange process between ion NH4+ and H+ by using zeolite as its ion exchanger is one of methods to purify water from ammonium ion content. Natural zeolites are chosen as ion exchanger because it is abundantly provided in Indonesia, especially in Lampung. The influences of reaction temperature and stirrer speed toward reaction rate constant, mass transfer coefficient and effective diffusivity in batch ion exchange process, were analysed by using shrinking core model. Processes run by mixing zeolite and ammonium solution in a stirred tank at 30, 40 and 50oC with stirrer speed variation of 700, 800 and 900 rpm. Every 5 up to 60 min, the sample was taken for ammonium ion analyses. The results show that mass transfer, intraparticle diffusion and ion exchange reaction resistance influenced the overall rate of reaction. The results also show that reaction temperature and stirrer speed influenced the reaction rate constant, mass transfer coefficient and effective diffusivity. The correlations of them are stated in simple empirical equation. Shrinking core model was good to describe the ion exchange kinetics between NH4+ and H+ ion in natural zeolite from Lampung with the average error range of 1,15 % – 3,71%.Keywords: ion exchange kinetics, Lampung natural zeolite, shrinking core model. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/73 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/73/68 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 2 (2009): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Analisis Kinetika Pertukaran Ion NH4+ dan H+ pada Zeolit Alam Lampung dengan Shrinking Core Model Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Irwansyah, Irwansyah Ibrahim, Masri Ferdiansyah, Hendra Date A point or period of time associated with an event in the lifecycle of the resource 2012-06-01 Description An account of the resource Hygiene is main reason for food processor to use waterjet cutting system. Traditionally food cutting process is low-quality, unsafe products, procedures and direct contact between product and labor. This paper introduced a low cost waterjet system for cutting soft material as identic food material. The low cost waterjet system has been developed by using a commercial pressure pump for cleaning purposes and modified nozzle. In order to enhance waterjet pressure for cutting products, a modified waterjet nozzle was designed. Paramater design of waterjet system was setup on nozzle orifice diameter 0.5 mm, standoff distance 15 mm, length of nozzle cylindrical tube 2.5 mm. Polycarbonate, polysterene, and polyethelene materials are used as sample product with thickness 2 mm, to represent similar properties with agriculture products. The experimental results indicate good possibilities of waterjet system to cut material in appropriate profile surface. The waterjet also can be used to improve cutting finished surface of food products. Therefore, utilizing a low cost commercial pump and modified nozzle for waterjet system reduces equipment price, operational cost and environmental hazards. It indicates viable technology applied to substitute traditional cutting technology in post harvest agriculture products.Keywords: cutting ability, modified nozzle, polymer material, water-jet system Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/247 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/247/233 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 9, No 1 (2012): Jurnal Rekayasa Kimia & Lingkungan; 6-11 2356-1661 1412-5064 Title A name given to the resource Influence of Water-jet Nozzle Geometry on Cutting Ability of Soft Material Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Lubis, Surya Date A point or period of time associated with an event in the lifecycle of the resource 2009-06-01 Description An account of the resource Cu/Silica gel catalyst preparation by using silica content which is obtained from Sabang natural crystobalit has been done. Isolated silica from crystobalit is reacted with natrium hidroxide to produce silicate natrium that reacted further with sulphate acid to produce silica gel. Silica gel is characterized by infra red spektroscopy dan BET test. BET test result showed that silica gel obtained has specific surface area 260,04 m2/gram and ion Cu  impregnation into silica gel pores produce Cu/silica gel catalyst with spesific surace area 158,53 m/gram ith Cu2+ metal content = 193 ppm. Catalyst activation test Cu/silica gel at dehidrogenation reaction of etanol to produce asetaldehide was done at temperature 100oC – 300oC. Reseach showed that the highest asetaldehide consentration (20,24%) is obtained at temperature 300oC.  Keywords: asetaldehide, crystobalit, Cu/silica gel, dehidrogenation, ethanol Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/64 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/64/59 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Preparasi Katalis Cu/Silika Gel dari Kristobalit Alam Sabang serta Uji Aktivitasnya pada Reaksi Dehidrogenasi Etanol Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Muhammad, Syaifullah Syahputra, Edy Nasrullah, Nasrullah Suraiya, Suraiya Wang, Shaobin Tade, Moses O. Date A point or period of time associated with an event in the lifecycle of the resource 2011-06-01 Description An account of the resource Particle size reduction of zeolite to the nanometer scale leads to substantial changes in the properties of zeolite which make them promising materials for many applications including adsorption. Zeolite silicate-1 Nanocrystal was synthesized at temperatures of 800C, 1200C and 1500C by adding tetrapropylammonium hydroxide (TPAOH) into silica sources. The synthesis mixtures are 2TPAOH: 0.15Na2O: 4.5Si: 382H2O: 51EtOH (TEOS as silica source) and 2TPAOH: 0.15Na2O: 6SiO2: 532H2O: 51EtOH (Ludox LS as silica source). X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to characterize the synthesised products. The nanosilicate-1 particle size were obtained in range of 119 nm – 1678 nm. This research also confirmed that TEOS can make smaller particle size up to 36.43 % than Ludox LS due to an average hydrodynamic diameter of 4 nm of TEOS smaller than Ludox LS of 15-19 nm. In the heavy metal adsorption study, it was found that the adsorption capacity indicated by Qmax (Langmuir) and KF (Freundlic) shows higher Pb2+ adsorption than Cr3+. The maximum adsorption capacities of Pb and Cr at 300C are 131.58 mg/g and 129.87 mg/g, respectively. Further, it can also be seen that the KL values in the Langmuir isotherm indicate the higher selectivity of Pb on silicate-1 zeolite than Cr.Keywords :Adsorption capacity, Heavy metal, Isotherm, Silicate-1 nanocrystal Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/238 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/238/224 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 8, No 1 (2011): Jurnal Rekayasa Kimia & Lingkungan 2356-1661 1412-5064 Title A name given to the resource Heavy Metal Removal from Wastewater Using Synthesized Silicate-1 Nanocrystal Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource e-Journal USK Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Husin, Husni Hasfita, Fikri Date A point or period of time associated with an event in the lifecycle of the resource 2006-06-01 Description An account of the resource Penelitian ini bertujuan untuk mengevaluasi pengaruh penyangga Al2O3, SiO2, dan TiO2 pada MoO3 terhadap kinerjanya dalam oksidasi etanol menjadi asealdehida. Katalis disiapkan dengan metode impregnasi dengan kandungan MoO3 of 25% dan 50%. Hasil identifikasi  dengan X-ray Difraction (XRD) menunjukkan bahwa komponen katalis terdiri dari kristal MoO3, TiO2, Al2O3, dan SiO2. Reaksi uji kinerja katalis dilangsungkan dalam reaktor pipa lurus berunggun tetap, beroperasi pada 150-300oC dan tekanan atmosfir. Produk dianalisis menggunakan gas kromatografi GC 8A buatan Shimadzu dengan kolom porapak Q 80/100 mesh. Konversi etanol tertinggi diperoleh 83% menggunakan katalis 50%MoO3/TiO2. Selektivitas asetaldehida tertinggi dihasilkan 96% menggunakan katalis 25%MoO3/SiO2. Yield asetadehida tertinggi dicapai 51% menggunakan katalis 25%MoO3/TiO2.Kata kunci:  katalis MoO3/TiO2, Al2O3, SiO2, impregnasi, oksidasi etanol, asetaldehida Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context http://jurnal.unsyiah.ac.id/RKL/article/view/1080 Language A language of the resource eng Publisher An entity responsible for making the resource available Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia Relation A related resource http://jurnal.unsyiah.ac.id/RKL/article/view/1080/1013 Source A related resource from which the described resource is derived Jurnal Rekayasa Kimia & Lingkungan; Vol 5, No 1 (2006): Jurnal Rekayasa Kimia & Lingkungan; 8-16 2356-1661 1412-5064 Title A name given to the resource Studi Oksidasi Etanol Menjadi Asetaldehida Menggunakan Katalis Molibdenum Oksida Berpenyangga Al2O3, TiO2, dan SiO2 Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Contributor An entity responsible for making contributions to the resource