METANA
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Articles 137 Documents
Peningkatan Produksi Garam Beryodium Melalui Aplikasi Alat Pencetak Garam Secara Mekanik

Handayani, Dwi ( Dosen Fakultas Teknik UNDIP ) , Murni, Murni ( Dosen Fakultas Teknik UNDIP ) , Ikhsan, Diyono ( Dosen Fakultas Teknik UNDIP ) , Arifan, Fahmi ( Dosen Fakultas Teknik UNDIP )

METANA Edisi Khusus Februari 2011
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Abstract

The salt moulder groups "Muji Rahayu" have a mission for drummed up salt moulders by are very limited, by process technology conventionally. The result of production is salt_powder  which is a gunny_pack then on sale at the prince of low. If it is soled in salt_moulder, the price will increase. Salt moulder form of Instrumentation which it is has incereased quality and sale at the prince salt iodized consumption. However, at the employe moulder machine which is continue, the machine has trouble because it is always related to salt which have a character is corrosive. Therefore, it needs to have a salt_moulder which is simple and easy to be operated by salt-farmer moreover the price is cheap. The salt moulder will work by mechanic and aplication style. Because of the caracter of salt which corrosive, so the contraction which related to salt is made by stainless steel. By the expectation it be able to increase the income of salt_farmers. Keywords : iodized salt, salt moulder

PRODUKSI BIOGAS DARI LIMBAH KOTORAN SAPI PERAH DENGAN REAKTOR BIOGAS SISTEM BATCH DI DESA LEREP KABUPATEN UNGARAN

Widjajanto, Didik Wisnu ( Jur. Nutrisi & Makanan Ternak . Fak. Peternakan Universitas Diponegoro, Kampus Tembalang, Semarang ) , Kusumayanti, Heny ( Teknik Kimia PSD III, Fak Teknik Universitas Diponegoro, Kampus Tembalang, Semarang ) , Rejeki, Sri ( llmu Kelautan. Fak. Perikanan & llmu Kelautan, Universitas Diponegoro, Kampus Tembalang, Semarang )

METANA Edisi Khusus Februari 2011
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Abstract

Abstract   Biogas is mixed gas of methane(CH4),  carbondioxide (CO2) and others which is produced as a result of moterial degradation of organic material such as animal and humon feces or plant byproduct by methanagen bacterial activity in biodigester. The present work is aimed to produce biogas fromfeces of milk cow. Biogas reactor used is built by IbM team of "IbM Peternak sapi Perah Penghasil Biogas di larep-Ungaran" (batch system). Result of present work revealed that 4 m3 biogas reactor with batch system is able to produce biogas starting doy 4. ln the following day, the biogas production increase and reach peak on day seven which is produce 42,85 liter of mix gas or 25,71 liter of methana gas   Keywords : biogas. batch system, cow feces http://ejournal.undip.ac.id/index.php/metana/editor/viewMetadata/1643

MODEL DIAGRAM JANECKE KESETIMBANGAN FASA PADAT-CAIR PROSES TIPE SOLVAY UNTUK PEMBUATAN Na2CO3 DAN KCI DARI ABU SABUT KELAPA

Wahyuningsih, Wahyuningsih ( Jurusan Teknik Kimia PSD Il Teknik, UNDIP Semarang Jl. Prof Sudarto,SH Pedalangan Tembalang, Semarang 50239 )

METANA Volume 5 Nomor 2 Desember 2007
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Abstract

Abstract Sodium carbonate and Kalium Chlorde are two major Chemical compound in industry such is glass, pulp, soap and paper industry. Sodium carbonate and kalium chloride can be produces simultaneously from coconut shell  fiber as by solvay type process. The ash coconut shell fiber contain larger portion of Kalium carbonate (35-45%-b Dikaliumoxide). The Material used in the research were kalium carbonate , kalium bicarbonate sadium chloride, carbon dioxide , kalium chloride, sodium carbonate ,sodium bicarbonate and water. The research parameter were the solubility of the salts kalium carbonate sodium chloride, sodium carbonate ,kalium chloride, sodium bicarbonate and kalium bicarbonate. For the solid liquid phase equilibrium data the observation for K+-Nα+- CI- CO3 - -H2O system was conducted. 30-40C and for K+-Nα+- CI- HCO3 - -H2O system the observasion was conducted at 55-65C They also help to identify the separation boundaries , the condition of operation ,the lise of solids that are  most likely to precipitate and many more. Information, the generated SLE-phase ,diagrams such as phase boundary data and saturation point data may be used to solve grapichally the mass balance equations is related to the operational pathson the phase diagrams,  the temperature dependent phase boundaries and the solubility index it is possible to simultaneously design.analize and simulate both continous flow sheets wich crystallization operation and sequences of batch.operations. The Simultaneous graphical not only provides a visualization of the process operation, but also,provides very goods initial estimates for future simulations with rigorous model.Jancke diagram .from Na + K t – CI- HCO3 - -H2O system at 50 C has the crystallization field.while the widest crystallization field for the Na + K t – CI- HCO3 - -H2O system was obtained from process at 400C Keyword : Janecke diagram; proses solvey

PEMBERDAYAAN INDUSTRI KECIL KERIPIK PISANG DALAM UPAYA MENUJU INDUSTRI MANDIRI

Pudjihastuti, Isti ( FT UNIVERSITAS DIPONEGORO ) , Supriyo, Edy ( FT UNIVERSITAS DIPONEGORO ) , Hartati, Retno ( FPIK Universitas Diponegoro )

METANA Edisi Khusus Februari 2011
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Abstract

Abstract                                                                          The development of micro industries, in banana chip micro industry to the member of group which is culinary enterprise Pemalang speciallized is give suitable solution to consument for giving natural culinary with high nutrition value independently and cheap.The development of micro industries is circular activity that consist of briefing about the use of gelatse system in banana chip production by naturally and independently, the suitable tachnique of banana chip production, production of furnace completely by steack as pilot plan, assitancy when the producer makes snack in gelatse system. Moreover, the taste of snack more delicious, the market bigger.

PERBAIKAN SISTEM PEMANASAN DENGAN MEMODIFIKASI TUNGKU PEMANAS YANG DILENGKAPI DENGAN CEROBONG ASAP

Kusumayanti, Heny ( Staf Pengajar PSD III T . Undip ) , Astuti, Widi ( Staf Pengajar PS T.Kima Unnes ) , Broto, R.TD Wisnu ( Staf Pengajar PSD III T . Undip )

METANA Edisi Khusus Februari 2011
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Abstract

Abtract   The empowerment of micro industries, in emping‘s chip micro industry to the member of group which is enterprise Batang speciallized is give suitable solution to consument for giving natural culinary with high nutrition value independently and cheap. The development of micro industries is a circular activity that consist of briefing about the usage of furnace completely by stack gas as pilot plan, assitancy when the producer makes sweet emping’s chip system more delicious and better performance than product’s previous   Key word: micro industries emping’s chip.

PENGELOLAAN SAMPAH TERPADU 3R (REDUCE-REUSE-RECYCLE), PEMBUATAN KOMPOS DARI SAMPAH ORGANIK

Dharma, Budhi ( Program Diploma III Teknik Sipil Fakultas Teknik Universitas Diponegoro )

METANA Edisi Khusus Februari 2011
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Abstract

Abstract   Garbage represents the waste product of household activities in solid as well as half solid forms. They derive from human settlement, market, commercial areas, offices, industrial zones, ranch and other public facilities. Implementing the 3-R progrom (Reduce-Reuse- Recycle), such as : separating various kinds of garbage from its source, development of garbage composting and integrated use of garage recycling product in human settlement area is regarded as an effective way to solve the garbage problem.The 3 - R program is expected to increase understanding and awareness among the community members about environmental health and also to minimize garbage disposal to the final garbage disposal plant.   Key word: garbage, reduce, reuse, recycle, compos

ROTATING MEMBRANE EMULSIFICATION FOR PRODUCING UNIFORM EMULSION

Aryanti, Nita ( Department of Chemical Engineering, Faculty of Engineering Diponegoro University, Kampus Undip Tembalang Semarang, 50278 )

METANA Edisi Khusus Februari 2011
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Abstract

Abstract   A versatile and high capacity membrane emulsification system which utilises a rotating membrane for the precision manufacture of uniform emulsions droplet was investigated. Single emulsions were produced with a very low viscosity of paraffin wax. Tween 20 and  carbomer, as dispersed phase, emulsifier and stabilizer, respectively. Emulsion droplets in the range of 138 µm  to 305 µm with coefficient of variation (CV) ranging from 9% to 29% were obtained. The methodology allows control of droplet production through adjustment of system operating parameters (membrane type, rotation speed, dispersed phase flux) to influence the average droplet size and droplet uniformity.   Keywords : Emulsion, membrane emulsification, rotating membrane, stainless steel membrane, uniform droplet.

ASIDOLISIS ENZIMATIS MINYAK SAWIT MERAH DAN MIINYAK IKAN TUNA DENGAN BIOKATALIS LIPASE PADI MENGHASILKAN ASAM LEMAK KAYA OMEGA -3

Wahyuningsih, Wahyuningsih ( PSD III Teknik Kimia, Fakultas Teknik Universitas Diponegoro ) , Susanti, Margaretha Tuti ( PSD III Teknik Kimia, Fakultas Teknik Universitas Diponegoro ) , Yulianto, Moh Endy ( PSD III Teknik Kimia, Fakultas Teknik Universitas Diponegoro )

METANA Edisi Khusus Februari 2011
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Abstract

Abstract   Red palm oil is source of p carotene and vitamin E, while Tuna fish is source of omega-3 and 6. Diversification of palm oil and tuna fish oil can be used as food supplement. The utilization of high concentration of minor vitamin is one of strategy to increase the additional value of both oil and also to provide minor vitamin from local product in order to increase the healthy of the society. There was some research conducted on micro encapsulation process of red palm oil which is rich of P carotene, provitamin A, and provitamin E. And there was also research subjected to microencapsulated fish oil which is rich of omega-3. In this research we combined the microencapsutaion of both red palm oil and tuna fish oil through enzymatic cytolysis process. From the cytolysis process, we will got type of fatty acid which is rich of omega 3 and P carotene . The objective of the research were to study the activity of rice bran lipase as biocatalisator in the conversion of palm oil fatty acid into fatty acid which is rich of omega-3, and to develop the bioreactor for the enzymatic cytolysis for fatty acid production. The research result showed that optimum condition for the cytolysis process was the ratio of red palm oil tuna fish oil 3:1, temperature 40oC; reaction time 4 hours, where the yield of fatty acid has EPA and DHA concentration 35,92% and 5,65%, respectively. While the rate of the reaction was 619,67 mol/hour. Red palm oil is an alternative source of fatty acid which is rich of omega 3 (EPA and DHA), and it can be produced by enzymatic cytolysis by using rice bran lipase. Lipase enzyme of R Meithei found to be a good biocatalyst in the red palm oil and tuna fish incorporation process of the fatty acid which is rich of omega-3.   Key words: citolysis, red palm oil, tuna fish oil

PRODUKSI FORMULASI INSEKTISIDA CAIR BENTUK EMULSIFIER CONCENTRATE YANG EFEKTIF GUNA MEMBASMI NYAMUK AEDES AEGYPTI DALAM USAHA MENCEGAH PENYAKIT DEMAM BERDARAH

Supriyo, Edy ( Jurusan Teknik Kimia PSD III Teknik UNDIP ) , Abidin, Zainal ( Jurusan Teknik Kimia PSD III Teknik UNDIP ) , Nugraheni, Nugraheni ( Jurusan Teknik Kimia PSD III Teknik UNDIP ) , Wahyuni, Sri ( Jurusan Teknik Kimia PSD III Teknik UNDIP )

METANA Edisi Khusus Februari 2011
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Abstract

Abstract   Liquid pesticide formulation in the form of emulsifier concentrate (EC) is more preferable because it does not form clogging and blocking in the tools and precipitating that harden. Based on fired capacity in the whole pesticide formulation industry, about 25 % produce emulsifier concentrate. In the emulsion formulation, the important point is unite insoluble matter become a homogeny and stable formulation for long period. The selection of emulsifier type is very important because it is influenced by quality and EC formulation stability. Result formula very good is 20 % propoxure; 5 % Malathion; 5 %; agrisol ; 20 % DBS; 45 % Xyline dan 5 % additive (%w/w), concentration affection test 0.025% v/v for thinner solvent in 20 strain aedes aegypti mosquitoes at Semarang killed on 2 hours = 4 mosquitoes, 4 hours = l0 mosquitoes, 6 hours = 16 mosquitoes and on 8 hours all mosquitoes had been died. From emulsion stability test, in oil phase and water phase was found terpentine as stable solvent in the emulsion form, with separated oil percentage at concentration 3mg/l about 42%. In water phase emulsion forms micro emulsion with white fog colors in whole concentration 1, 2 and 3 ppm   Keyword: Emulsifier Concentrate

BIODIESEL DENGAN ALTERNATIF BAHAN BAKU MINYAK NABATI BARU DAN BEKAS

Kusumayanti, Heny ( Jurusan Teknik Kimia PSD III, UNDIP ) , Puspitasari, Nurul ( Jurusan Teknik Kimia PSD III, UNDIP )

METANA Volume 4 Nomor 1 Juni 2007
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Abstract

Abstract Biodiesel represent one of substance of alternative of fuel substitution which can be innovated and friendly environmentally. This Biodiesel earn also made plainly  and  exploit the existing substance around. Price from raw material its maker also cheap enough. The example by using new vegetation oil and ex-vegetation oil. Process of with the process transesterifikasi, that is dissolve the oil by NaOH and methanol. Later then mingled and yield two coat after hushed 8 clock that is flake is biodiesel and substratum is gliserol. Examination conducted by experience is combustion by using tinder and with the iron rasher Keywords : biodiesel, oil

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