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<![CDATA[PEMANFAATAN LIMBAH KULIT BIJI NYAMPLUNG UNTUK BAHAN BAKAR BRIKET BIOARANG SEBAGAI SUMBER ENERGI ALTERNATIF ]]>
<![CDATA[Arif Budiarto]]>;
<![CDATA[Ganish Eko Mayndra]]>;
<![CDATA[Didi Dwi Anggoro]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[This research was started by pirolized the main matter, nyamplung’s seed peel into char with three kinds of adhesive agent as is sodium silicate, wheat powder, and tapioca starch. The aims of this research are to know the right kind of the adhesive, to know the optimal particle size of the nyamlung seed’s peel ash, to know the optimal of the adhesive concentration, and to know the optimal condition of the briquette making by using response surface methodology (RSM). This research uses two steps, first is first is certaining the right kind of the adhesive agent and second one is optimization of independent variables as are the concentration of adhesive agent and the char particle size. The result of this research shows that the best kind of adhesive agent which is used to produce a good briquette is tapioca starch. Briquette with 17,66% adhesive agent and 20 mesh particle size results the highest heating value as is 6772,582 kal/gr which has fulfilled the standart of Indonesian and Japanese. Briquette with 6,34 % adhesive agent and 20 mesh particle size results the worst stabilty and the highest % loss as is 33,56 % while briquette with 16 % adhesive agent and 40 mesh particle size also 17,66 % adhesive agent and 20 mesh particle size results the best stability and the lowest % loss consecutively as is 0,83 % and 1,24 %. Stability test shows that briquette product is stable in diameter and height all the time. From this research’s results, it is wished to take a further research that study about the other independent variables to produce the better nyamplung’s seed peel briquette so it can give a contribution for inventing alternative enviromental agreeable fuel.]]>
<![CDATA[PEMANFAATAN TEPUNG GLUKOMANNAN DARI UMBI ILES-ILES (AMORPHOPHALLUS ONCOPHYLLUS) SEBAGAI BAHAN BAKU PEMBUATAN EDIBLE FILM ]]>
<![CDATA[Bayu Aji Raharjo]]>;
<![CDATA[Ni Wayan Santi Dewi]]>;
<![CDATA[Kristinah Haryani]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Salah satu upaya peningkatan nilai jual iles-iles adalah dengan memanfaatkannya menjadi bahan pengemas makanan ramah lingkungan. Selain dapat meningkatkan nilai jual iles-iles, keberadaan bahan pengemas ramah lingkungan dapat mengurangi penggunaan bahan plastik sebagai pengemas non-degradable. Penelitian ini bertujuan untuk membuat film yang bersifat edible dan mendapatkan data karakteristik guna memperoleh model hubungan komposisi tepung iles-iles, jenis plasticizer, dan komposisi plasticizer terhadap karakterisasi fisik dan mekanik edible film. Iles-iles mengandung glukomannan yang cukup tinggi sehingga bisa dimanfaatkan sebagai bahan pembuat film yang potensial. Dengan penambahan plasticizer, film yang dihasilkan memiliki karakteristik yang lebih baik. Jenis dan komposisi plasticizer untuk menghasilkan film yang memiliki karakteristik fisik dan mekanik terbaik akan diuji. Penelitian dilakukan dengan variasi komposisi tepung glukomannan (2 gr, 3 gr, dan 4 gr), jenis plasticizer (sorbitol dan gliserol), dan komposisi plasticizer (1 ml, 2 ml, dan 3 ml). Karakteristik film yang diuji adalah modulus young, kuat tarik, dan pemanjangan maksimum. Hasil penelitian menunjukkan bahwa perolehan nilai modulus young, kuat tarik, serta pemanjangan maksimum tertinggi terdapat pada konsentrasi tepung glukomannan 4 gram plasticizer sorbitol 3 ml. Pembahasan dilakukan untuk mengkaji pengaruh variabel terkait terhadap hasil penelitian yang diperoleh.]]>
<![CDATA[PEMISAHAN FAT, OIL, AND GREASE (FOG) DARI LIMBAH FOODCOURT DENGAN DISSOLVED AIR FLOTATION ]]>
<![CDATA[Bayu Satria Utama]]>;
<![CDATA[Maria E. Simorangkir]]>;
<![CDATA[I Nyoman Widiasa]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Oil waste water is the source of pollution that is often found in everyday life. Oil as a pollutant that is contained in the water must be separated so that oil can be utilized, and its existence as a pollutant can be removed. In this research study will be conducted to find the most suitable parameters of the pressure to separate the fat, oil, and grease from waste water foodcourt with Dissolved flotation. The variables used in the separation pressure is 4.5; 5; 5.5; and 6 bar. Separation results obtained will be analyzed by using analysis of total suspended solids. Data analysis results obtained are total suspended solids in the feed of 40,000 mg / L, after the water is separated using flotation Dissolved respectively obtained at a pressure of 4.5 bar total suspended solids of 3000 mg / L, at a pressure of 5 bar can get the total solids suspension of 2500 mg / L, at a pressure of 5.5 bar total suspended solids obtained at 1500 mg / L, and at a pressure of 6 bar obtained total suspended solids of 500 mg / L.]]>
<![CDATA[PEMBUATAN KECAP DARI IKAN GABUS SECARA HIDROLISIS ENZIMATIS MENGUNAKAN SARI NANAS ]]>
<![CDATA[Maulana Nur Prasetyo]]>;
<![CDATA[Nirmala Sari]]>;
<![CDATA[Sri Budiyati]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[One of the effort to increase added value in fish with low economic value and increase the shelf life of fish nutrition is to produce a fish sauce. For that purpose, it has been studied the process of making fish sauce from snakehead fish meat (Ophiocephalus striatus or Channa striata) by using enzymatic hydrolysis. In this study, the hydrolysis process is done by adding pineapple juice which containing bromelain enzymes into chopped snakehead fish meat with the concentration of 6, 8, and 10% (w / w). The addition of salt (NaCl) as a preservative to the mixture of cork fish and pineapple juice as much as 3%, 5%, and 7% (w / w). Enzymatic hydrolysis process carried out for 1, 2, and 3 days old and anaerobic incubation in room temperature. Analysis was performed on the fish sauce products that include protein concentration levels in products and analysis of the number of microbes on the product. The results showed that the optimum fish sauce can be produced from snakehead fish with pineapple juice which contains bromelain enzymes as much as 10% at 3 days hydrolysis time and the addition of 5% NaCl. The number of microbes is seen at least on the product with the addition of 7% NaCl, 1 day of hydrolysis and 6% pineapple juice (4 x 102).]]>
<![CDATA[PENGOLAHAN AIR LIMBAH INDUSTRI ELEKTROPLATING DENGAN ELEKTROKOAGULASI MENGGUNAKAN ELEKTRODA Fe ]]>
<![CDATA[Jessica Dima F.M.]]>;
<![CDATA[Maulida Zakia]]>;
<![CDATA[R Ratnawati]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Electroplating industry is one of industry that still growing in Indonesia. The wastewater generated from this industry is dangerous because it contained dissolved metals such as chromium, nickle, cadmium, copper, etc. Currently, there are some wastewater treatment method such as presipitation, microorganism, ultrafiltration, and reverse osmosis. However those method has disadvantage like secondary wastewater, high cost, and applied on industry scale is hard. The more effective method is electrocoagulation. In this research potassium dichromate solution is used as sintetic wastewater and tested on electroplating wastewater. Electrocoagulation method will be investigated by studying the effect of time, initial concentration and current density to the TDS of final solution. In the electroplating wastewater tested the effect of time and current density to the TDS of final wastewater. Iron Fe ST 37-2 are used as electrodes. From this research obtained that on the low initial concentration of potassium dichromate will give higher removal TDS (77,78%) than on the higher initial concentration (41,18%). This is because at the same time frame the number of Fe2+ produced not enough to reduce all Cr6+ in solution with high concentrations. In the high current density gave higher removal TDS (65,95%) than low current density (34,48%). The higher current density indicates the more Fe2+ produced to reduce Cr6+ to Cr3+ that will form Cr(OH)3 so it can deposited easily. Electrocoagulation method can be applied to wastewater because it can lower the TDS of electroplating wastewater by using a variation of current density.]]>
<![CDATA[PROSES KULTIVASI Spirulina platensis MENGGUNAKAN POME (Palm Oil Mill Effluent) SEBAGAI MEDIA KULTUR DALAM RECEWAY OPEN POND BIOREACTOR ]]>
<![CDATA[Erlinda Khoirunisa]]>;
<![CDATA[Elisa Mutiah]]>;
<![CDATA[A Abdullah]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Spirulina platensis is being cultivated in POME as a medium using raceway open pond bioreactor during 5 days. Purpose of this research, which has POME concentration (3×, 4×, 5× diluted) and feed loading concentration of Spirulina platensis (0.443 g/L; 0.618 g/L; 0.952 g/L) as variables, are learning the effect of those variables to the Spirulina platensis growth and finding the best variable composition for Spirulina platensis growth. The response for this research is dry weight of Spirulina platensis.The result shows that POME which is five times diluted as a medium gives the highest dry weight of Spirulina platensis, it is 0.7592 g/L. For the feed loading concentration of Spirulina platensis, the best result shown at 0.443 g/L feed loading concentration which gives 0.9932 g/L dry weight of Spirulina platensis. It can be conclude that POME which is five times diluted and 0.443 g/L feed loading concentration of Spirulina platensis give the best result for Spirulina platensis growth. From this research, it is expected to have a further research in a longer cultivation period of Spirulina platensis so that it can be a contribution for Spirulina platensis cultivation which can be commercially exploited for the supplements in human food, animal feed, beauty products and pharmaceuticals]]>
<![CDATA[EKSTRAKSI FOSFOR DARI LIMBAH BUAH JENGKOL DAN PETAI UNTUK PEMBUATAN PUPUK ORGANIK CAIR ]]>
<![CDATA[Rentdo Reinnoki]]>;
<![CDATA[Waskito Rohim]]>;
<![CDATA[Slamet Priyanto]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Waste jengkol and petai is a class of organic waste that can pollute the environment. For that pollution problemscan be overcome by utilizing the waste into liquid organic fertilizer which can raise the economic value that arebeneficial to the environment. The process of making is solid liquid extraction (leaching) with leaching timevariation, species composition and bioactivator waste type. The mixture is fermented for 25 days once every 5 daysof leachate were taken to measure the content of phosphor. Variation time of leaching showed that the longer time,more and more content of phosphorus is produced. Optimum time on the day to 25 where each variable is theamount of phosphorus in every 663.33 mg / l; 596.69 mg / l; 427.48 mg / l and 398.98 mg / l. Bioactivator type andtype of waste that is used also affects the amount of phosphorus produced. Rendement produced on the 25th dayfrom each variable is 62.07%, 48.28%, 44.83% and 37.93%. The rank of variable composition that produces a highphosphorus content and high yield is jengkol EM4, petai EM4, jengkol Boisca boisca and petai Boisca.]]>
<![CDATA[ADSORBSI Fe DENGAN MENGGUNAKAN ZEOLIT ALAM SUATU USAHA UNTUK MENINGKATKAN MUTU MINYAK NILAM ]]>
<![CDATA[Bhagus Alfiyan]]>;
<![CDATA[Hamdillah Usman]]>;
<![CDATA[Herry Santosa]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Patchouli oil quality could be determined by the amount of Fe impurity contained in. The presence of Fe in patchouli oil is an accomplished fact, nevertheless its presence, for some cases, isn’t desirable. Adsorption is a method to reduce the amount of Fe in patchouli oil. The research would be done beyond by two steps. First step is preparation of active zeolite which consists of (1) reducing zeolite size into 80 mesh and (2) activating the zeolite. In this step, zeolite will be immersed into 250 ml KMnO4 1 M solution during 24 hours then it will be dried using 110-1200C oven during 30 minutes. Second step is Fe adsorption in patchouli oil. The aim of adsorption step is to determine the most influencing independent variable among the weight of zeolit, adsorption temperature, and adsorption time using 2 levels Factorial Design Method. The adsorption will be done on 5 gr and 10 gr weight of zeolit, 300C and 900C adsorption temperature, along with 30 minutes and 60 minutes adsorption time. The analysis of the amount of Fe that can be reduced will be done using Atomic Absorption Spectrofotometry (AAS) at the end of each variable. From experiment result, we have determined that the weight of zeolite is the most influencing independent variable to reduce Fe in patchouli oil.]]>
<![CDATA[PENGARUH PENGERINGAN JAGUNG DENGAN METODE MIXED ADSORPTION DRYING MENGGUNAKAN ZEOLITE PADA UNGGUN TERFLUIDISASI TERHADAP KANDUNGAN LEMAK DAN PROTEIN ]]>
<![CDATA[JD Ryan Christy S]]>;
<![CDATA[Muhammad Ulil Absori]]>;
<![CDATA[Luqman Buchori]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Corn (Zea mays L.) is one of the important world food crops, other than wheat and rice. Becausecorn is an important role as a source of food and medicine, the post-harvest handling is veryimportant because it determines the quality of the corn for the next use. Drying process byadsorption is an option to replace conventional corn drying systems. In our study, the zeolite asadsorbent was mixed with corn in campfire the fluidized with air at 30-50oC. The air willevaporate water from the corn, and at the same time, the zeolite will absorb the water from the air,so the humidity will be maintained low. Thus heat consumption can be lowered and drying willbecome faster. Required materials in this study are corn and zeolite. Research conducted usingfixed variable sampling time (15 minutes). Incoming air temperature(room temp, 30oC, 40oC, 50oC)and ratio between corn and zeolitedrying the corn, characterization must do first. The dried corn tested the water, protein, fatcontains and the colors. The results from this research show the best variable is variable with ratiobetween corn and zeolite (1:0, 1:3, 1:1, 3:1) are used as changing variables. Beforeappropriate with SNI standard for dried food ( 14 % ) is variable using incoming air temperature40oC and 50oC with ratio between corn and zeolite 1 : 3 and using incoming air temperature 50oC. The suitable variable andappropriate with SNI standard for dried food ( 14 % ) is variable using incoming air temperature 40oC and 50oC with ratio between corn and zeolite 1 : 3.]]>
<![CDATA[EKSTRAKSI LIPID DARI MIKROALGA (NANOCHLOROPSIS sp.) DENGAN SOLVEN METHANOL DAN CHLOROFORM ]]>
<![CDATA[Bambang Wijanarko]]>;
<![CDATA[Lanny Diane Putri]]>
<![CDATA[ JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012 ]]>
Publisher : <![CDATA[Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro, ]]>
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<![CDATA[Nanochloropsis sp. is the one of kind microalgae which is already cultivated in Indonesia. Nanochloropsis sp. contain of lipid which has potensial to product some biodiesel. In order that this research is acted to get an alternative fuel source which derivative from Nanochloropsis sp. The objective from this research are to explain effect of comparison mixture of solvent ; time of extraction; and also temperature to get the best result extract of lipid from Nannochloropsis sp. This research is acted with solid-liquid extraction methode which used mixture of solvent methanol and chloroform.The powder of Nannochloropsis sp. is extracted with various variable. The extract is then purified with destilation methode and analyzed used volumetric titration methode with NaOH 0,25N. The result indicate that the best way to get an optimum extract are mixed the solven, a comparison mixture of solvent methanol and chloroform which obtained optimum extract is 2:3 with time of extraction 3 hour and temperature 70°C.]]>
