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INDONESIA
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Industrial & Manufacturing Engineering
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI adalah jurnal yang diterbitkan oleh Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro untuk mempublikasikan karya ilmiah - karya ilmiah mahasiswa Program S1 Teknik Kimia Undip.
Arjuna Subject : -
Articles 77 Documents
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Search results for , issue "Volume 1, Nomor 1, Tahun 2012" : 77 Documents clear
PEMBUATAN DAN KARAKTERISASI SUPPORT LAYER UNTUK MEMBRAN PERVAPORASI Ariestya Meta Devi; Lulluil Mahsunnah; Heru Susanto
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

The selection of the membrane has an important role in the process of pervaporation membranes based on the advantages and disadvantages for use in the separation process.. In the separation process of water with low concentration and need a specific condition, anorganic membrane is suitable. The purpose of this research is to find the optimal composition of support for the preparation of zeolite membranes.The result of the research shown the support membrane with composition alumina : kaolin 56%wt : 34%wt has a highest strength 46,65 N/mm2 and 30,24 N/mm2 if it compare with composition of alumina : kaolin 45%wt : 45%wt and 34%wt : 56%wt. And then the support layer is depositioned by zeolite. As an identification result from XRD, it shown mullite as dominant phase that formed with crystal size range 3,16 – 7,25 nm. Based on the analysis results obtained using the SEM support surface which has been deposited into closer, but the zeolite crystals have not formed a bond that forms between each zeolite.
PENGOLAHAN AIR LIMBAH RUMAH TANGGA SECARA BIOLOGIS DENGAN MEDIA LUMPUR AKTIF Suatu Usaha Pemanfaatan Kembali Air Limbah Rumah Tangga Untuk Kebutuhan Mandi Dan Cuci Deissy L Nusanthary; Elliza Rosida Colby; Herry Santosa
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Liquid wastes water, the former can be processed into water that can be used again in accordance with needed. Research carried out using a biologically active sludge media. The experiment is done through two stages (1) the characterization of waste water (2) wastewater treatment. Characterization of wastewater is meant to find out the characteristics of the waste water based on pH and clarity level. Stages of wastewater treatment is performed in four aerator box, each with comparative weight of active sludge per unit volume (MLSS 1000, 2000, 3000 MLSS MLSS and MLSS 4000 mg/litre). On each end of the experiment conducted test pured, pH, water softening, and surfactants of kehari for seven days. From the results of the experiment retrieved data (1) the waste Water need further processing to put back as water bath and laundry (2) Review of test parameters pH, clarity, and water softening. processing for 6 days will provide product water processed relatively better on the use of MLSS 1000mg/l (3) of the day to day, during the process of decreasing the levels of processing takes place even though it has not yet reached the levels of surfactants are surfactants are equal to zero, according to SK menkes RI in 2002.
EKSTRAKSI GLUKOMANNAN DARI TANAMAN ILES-ILES (Amorphophallus oncophillus) DENGAN PELARUT AIR DAN PENJERNIH KARBON AKTIF Irene Nindita P; Noor Amalia; H Hargono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Iles-iles (Amorphophallus oncophyllus) is a type of plant that is very potential to be developed  in terms of medical, industrial and food. ). Iles-iles contains high glucomannan, namely 45-65% (Arifin, 2001).. The purpose of this study is to determine the variables influencing the extraction process iles-iles becomes glucomannan, obtain optimum conditions and to search the influence of activated carbon. In this research there are two steps experiment, which is extraction and  analyzed glucomannan content. This research uses two levels design factorial method with three variables. Fixed variables used 35 grams of iles-iles flour. Free variables used solvent with low level (-) 400 ml and upper level (+) 800 ml, temperature with low level (-) 35°C and upper level (+) 50°C, and the weight of activated carbon with low level (-) 1,25 gr and upper level (+) 1,8 gr. In the experimental results can be seen that the most influental variable is the solvent. The less the amount of solvent, the more content glucomannan obtained. The result of glucomannan extraction after given the addition of activated carbon obtained colors more clearly. Iles-Iles optimum processing conditions to be glucomannan is the 300 ml solvent with the temperature is 35OC and the weight of activated carbon is 1,25 gram.
PENGGUNAAN ZEOLITE SINTETIS DALAM PENGERINGAN GABAH DENGAN PROSES FLUIDISASI INDIRECT CONTACT Affian Widjanarko; R. Ridwan; M. Djaeni; R. Ratnawati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Drying grain commonly used in Indonesia is drying by using sunlight. Drying is still constrained by the type of season. The research objective to accelerate the use of zeolite grain drying process, determine the relationship inlet air temperature dryer drying rate, and determine the relationship of the inlet air flow rate of air at the rate of drying. The operating conditions in this experiment is the drying air temperature ((30oC; 40oC; 50oC and 60oC),  drying air flow rate (1 m / s; 1.5 m / s, 2 m / s and 2.5 m / s) and zeolite 1 kg. The research was carried out by flowing dry air at specific operating conditions and then brought into contact with the grain in the fluidized bed to obtain the water content of 12-14%. The results obtained indicate the temperature of 30oC, Nc = 0.0082, while the temperature of 60oC, Nc = 0.0138. In the air flow rate of 1 m / s, Nc = 0.0094 while the air flow rate of 2.5 m / s, Nc = 0.0118. From this data it can be concluded that the higher the temperature and the rate of air dryer, the drying rate wil be faster.
ISOLASI MANNAN DARI DAUN LIDAH BUAYA (Aloe vera) DENGAN PROSES EKSTRAKSI SEBAGAI BAHAN DASAR PEMBUATAN EDIBLE COATING BERBASIS POLISAKARIDA Mutia Istianah; Sumarlin Mahadi Putra; Diah Susetyo Retnowati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Aloe veraleap pulp contains polysaccharide ,organic and other inorganic materials. Many benefits of aloe vera so it is needed to explore the potential that exists in the aloe vera plant. Extraction process and deposition was method to take an active substance (mannan) contained in aloe vera. In this process the fixed variable are 200 grams of Aloe vera pulp, extraction temperature at 40 0C, and the ratio of ethanol: mannan solution = 3:1. While the independent variables used are the weight ratio (g) of  Aloe verapulp to distilled water solvent (1:2, 1:3, 1:4, 1:5), and the extraction time used (30, 45, 60, 75) minutes . Extracted mannanincrease as Aloe vera leaf pulp or aquadest ratio and extraction time are increase. Similarly, the extraction time, then the extracted Mannan also will be many more ..
INOVASI PRODUKSI MINYAK KAYU MANIS DENGAN MENGGUNAKAN TEKNIK HIDRODISTILASI VAKUM Andita Rusliawan; Dina Mukti Wijayanti; Bambang Pramudono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Cinnamon oil is processed from cinnamon bark that has a high selling price. Cinnamon oil can be produced through a process either distillation or extraction. In this study, cinnamon bark is washed, dried, milled, and sieved to obtain size 2-3; 0.85-2; <0.85 mm. Then vacuum hydrodistillation is carried out with 800mL of water, 100 grams of cinnamon bark, at 70 ° C and 450mmHg (0.59 atm). Product from vacuum hydrodistillation is then measured and analyzed for levels cinnamic aldehyde. Optimum variables in this study are 0.85-2mm particle size and 4.5 hours which give the greatest yield is 3.02 (g oil produced/100 g cinnamon bark). Product of cinnamon oil with vacuum hydrodistillation have a good quality with  72.60% cinnamic aldehyde and fulfilling the standards of cinnamon oil.
EFEKTIFITAS PENGOLAHAN LIMBAH CAIR DENGAN AERASI DALAM MENURUNKAN KADAR COD PADA LIMBAH BIODIESEL Maris Anindita Fauzi; Setyani Hardiana Sunardi; Indro Sumantri
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Disposal of wastewater into bodies of water with a high content of COD load can cause a decline in the amount of oxygen in the water. Biodiesel manufacturing process wastewater to be discharged into the environment contains high COD, ie 1200 ppm. Processing carried out aerobically with COD values ​​of less than 1500 ppm to shorten the processing time. In addition, microbial & nutrients can be used to streamline the processing of waste in aerobic waste so that the output can meet environmental quality standards and certainly within a relatively short time. In this study degrasimba added bacteria and micro nutrients to the removal of COD in waste biodesel. Variable fixed in these experiments were MLSS 3000 mg / l, pH 7, the bacteria and micro nutrients that are used, the volume of waste, and waste type. Independent variable in this experiment is hidarulic retention time (HRT) with variations (8,12,14,dan16hours.). The results showed that the longer Hidarulic Retention Time (HRT), the higher removal of COD in the effluent. From the experimental results obtained COD with the longest HRT showed a decrease of 77.92% with a decrease from 1200 ppm to 265 ppm, and for HRT 8,12,14 hours respectively were 70.75%, 71.75% and & 72 , 83%. COD value obtained is 351.339, and 326 ppm in HRT each - respectively 8, 12, and 14 hours. With the COD levels of the average - average has decreased constantly on days 3 and 4..
PENGARUH KONSENTRASI KITOSAN TERHADAP PROSES FLOKULASI PADA PEMANENAN MIKROALGA Rangga Warsita Aji; Wulan Sari Gusniawati; Nur Rokhati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

The common method used for harvesting microalgae is filtration. But, it has disadvantages such as particle size of microalgae are generally small causing the harvesting process uneffecient. It can be measure using chitosan as bioflocculant. The first procedure of research is making a stock solution of chitosan was prepared by dissolving chitosan flakes in 1% (v/v) acetic acid until the flakes was totally dissolved, then  it is introduced  into 500 ml of microalgae culture (Spirulina sp). The flocculation process is experimental designed by the variation of the concentration of chitosan (5 mg/L ; 10 mg/L ; 15 mg/L ; 40 mg/L ; 70 mg/L ; 100 mg/L) at pH 8 and slow mixing speed 40 rpm.  The result shows that increasing concentration of chitosan causes increasing flocculation efficiency but at the concentration that is too high, it will make flocculation efficiency decrease.
MODIFIKASI PATI TALAS DENGAN ASETILASI MENGGUNAKAN ASAM ASETAT Mochamad Adi Saputro; Arizal Kurniawan; Diah Susetyo Retnowati
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

In Indonesia, taro is consumed as a staple food and food additives. Taro contains a high carbohydrates, proteins, fats and vitamins. Goverment continuous to support taro as non food material, yet it has a potential to be developed. Natural starch (native) has several problems associated with retrogradasi, stability, and low resistance paste. It’s became a reason for the starch modify, to get suitable properties for certain applications. Modification can be done by chemically, physically or enzymatically. One of chemically modified starch is acetylation method. One Hundredgrams of starch added to the acetic acid solution and stirred at certain temperature for 30 minutes. The resulting starch is filtered and then dried at 50oC for 24 hours. Filtrate is titrated with 0.5 N NaOH to know remaining acetic acid. Starch which has dried then milled to obtain a fine powder then the swelling power and solubility were analyzed.Temperature had no effect in the acetylation process of taro starch.  The best ratio volume acetic acid-water obtained for food material is 4.5 ml /250 ml at 35oC and the
KULTIVASI MIKROALGA Spirulina platensis DALAM MEDIA POME DENGAN VARIASI KONSENTRASI POME DAN KOMPOSISI JUMLAH NUTRIEN Fitria Yuli Anggita Sari; I Made Aditya Suryajaya; H Hadiyanto
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Indonesia and Malaysia are known as the largest countries of palm oil producer in the world. Along the development of palm oil industry in Indonesia, there is more liquid waste from manufacturing process of palm oil which is known as Palm Oil Mill Effluent (POME). POME has been treated using method of aerobic and anaerobic ponds to reduce COD and BOD contents , whereas POME still contains nutrients such as C,N,P which are useful as a nutrient for the growth of microalgae. In this research,cultivation of Spirulina platensis cultivated in POME media with various concentrations of 20%, 40%, and 60% V . Urea, NaHCO3, and TSP were given each two days as a nutrient. The cultivation process carried out for 7 days with aeration and 24 hours lighting.The result shows that the best cultivation media is POME with a concentration of 20%. The best nutrient composition is the addition of 25 mg/l Urea, TSP 50 mg/l and 200 mg/l NaHCO3. At the same treatment on a variety of media is obtained that the maximum growth rate of Spirulina platensis is μ = 0.128/day. The nutrient savings gained from the use of POME as a cultivation media is: Carbon by 42,23 % - 129,71 % and 41,46% - 124.44%. for Nitrogen. This research also showed that C,N,P contents of POME decrease by 20,60% - 84,69% ; 87,52% - 93,47% and 29,44% - 76,66% respectively.

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