Browsing by Author "Zulfansyah"
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Item Analisis Konfigurasi Sistem Produksi Hidrogen dari Etanol Produk Fermentasi yang Melibatkan Unit Membran(2013-05-08) Legawati, Lisa; Rionaldo, Hari; ZulfansyahEthanol from fermentation process must be purified to 99% to meet the requirements as a fuel. Ethanol and water are azeotrope mixture, so that the separation requires larger investment and greater energy. Produce hydrogen from ethanol reforming is one solution to get another energy source in the form of environmentally friendly hydrogen gas. H2 production from ethanol has advantages when compared with other H2 production techniques. Nowdays, hydrogen is one of alternative energy source that is currently widely studied and developed as a fuel for fuel cells to generated electricity. Membrane integration of hydrogen production system by ethanol reforming can produce hydrogen gas with high purity and suitable for use as a fuel for fuel cells. There are three type of configurations involving a palladium based membrane is simulated to obtain the best type of configuration, viewed from the conversion and yield of the product. Ethanol reforming membrane reactor is the best configuration type, because it produces the best result viewed from the yield generated, amounting to 21,4%. However, it should be noted that the merger of the membrane unit with the reaction can reduce the hydrogen permeability.Item DEGUMMING DAN PENYISIHAN FFA DARI CPO PARIT DENGAN MEMBRAN ULTRAFILTRASI SISTEM ALIRAN CROSS-FLOW(2012-11-12) Zulfansyah; Syarfi; Zahrina, IdaKadar Gum Dan FFA dalam bahan baku CPO parit dapat diturunkan antara lain dengan menggunakan teknologi membran. Penelitian dllakukan terhadap membran ultrafiltrasi Capillary bermaterial polypropilen dengan sistim aliran cross Flow yang beretujuan untuk mempelajari : Fluk terhadap waktu pada berbagai tekanan, efektivitas pencucian kimia terhadap fluk recovery dan Resintance Removal serta rejeksi. Penelitian dilakukan pada tekanan trans-membran masing-masing: 0,5; 1; 1,5; dan 2 bar, dan pencucian kimia (NaOH) dengan konsentrasi masing-masing 0; 0,5; dan 1 N. Prosudur penelitian meliputi Pengukuran fluk mula-mula (J J dengan aquades selama 20 menit. Pengukuran fluk treatment CPO parit selama 90 menit (J J . Pengukuran fluk permeat pada pembilasan pertama dengan aquadet selama 20 menit ( J ^ . Pengukuran fluk pada pencucian kimia selama 20 menit(Jc). Pengukuran fluk pada pembilasan tahap kedua dengan aquades (J^). Hasil penelitian menunjukkan: rejeksi FFA dan Phosphorous mencapai 82% dan 44%; Fluk permeat tertinggi mencapai 3.5 LVJam.m^ pada tekanan trans-membran 2 bar dengan pencucian kimia 1 N ; Fluk Recovery (FR) dan Resistance Removal (RR) mencapai 48 % dan 82 %.Item Delignifikasi Batang Jagung dengan Proses Organosolv Menggunakan Pelarut Asam Formiat(2013-07-19) Puspitasari, Shelviana Hanika; ZulfansyahCorn stalk is agricultural solid waste which has not been utilized to the optimum. So far only used for fodder and green manure. Corn stalk delignification experiments intended to study the possibility of utilization of corn stalks as an alternative raw material for the pulp industry, as well as to determine the reliability of formic acid as a medium delignification fractionation and corn stalks in the organosolv process. Corn stalk delignification experiment is carried out at a laboratory scale batch. Experimental variables studied, the concentration of formic acid 70; 80; 90% by weight, the reaction time of 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180 minutes and the ratio of liquid-solid 10/1, with a catalyst concentration of 0.2% hydrochloric acid. The experimental results showed that the corn stalks can be used as a pulp with organosolv process and produce pulp yield from 31.88 to 47.01% and from 10 to 14.31% pulp lignin content, which varies according to the condition of the experimental data with the level of compliance with the model exceeds 95% (R-square> 95%). The whole process variables influential in yield and lignin content, and the quality of the resulting pulp pulp industry standards.Item Ekstraksi Sawit Off-grade Menggunakan Metode Artisanal(2013-08-26) Nugroho, Dian Agung; Zulfansyah; Helwani ZuchraSorting systems at oil mills produce off-grade oil palm (palm fruit maturity beyond grade). Off-grade oil palm produced in Riau province estimated 437 – 625 tons / hour. Processing off-grade oil palm will only produce Crude Palm Oil (CPO), which has low quality. Therefore we need an appropriate technology to process off-grade oil palm to make it more economically valuable. Oil extraction method consists of traditional methods, artisanal methods and conventional methods. Artisanal method requires only simple technology and aims for obtain maximum yield. Presses a tool used in this study is Spindle hydraulic press. Off-grade oil palm steamed in a sterilizer unit using a variety of steaming time 120 minutes, 180 minutes, and 240 minutes. Once the steaming time is reached, the fruit of steaming pressed by using a variation of pressure 10 bars, 20 bars, and 30 bars. During hot pressing water added as much as 10%, 15%, and 20% by weight. Data analysis that yields, levels of free fatty acids (FFA), moisture content, and the content of impurities. The data were analyzed using the response surface method (RSM). Obtained the maximum yield is 13.18% with levels of Free Fatty Acid (FFA) 21.54%, water content 6.41%, and 1.59% levels of impurities when using sterilization time of 120 minutes, pengepress pressure of 30 bar, and the addition of 15% of hot water.Item Evaluasi Kinerja Kompor Gasifikasi Forced Draft(Seminar Nasional Teknik Kimia Indonesia dan Musyawarah Nasional APTEKINDO 2012, 2012) Hermanto; Zulfansyah; Fermi Muhammad IwanThe availability of biomass as a source of primary energy in Indonesia is very abundant, reaching 280 million barrels of oil equivalent (BOE) and approximately 84% of the biomass has been used for the household sector. The application of gasification stove especially in cooking purposes can increase the efficiency of fuel usage. This research uses three units gasification stove with dimension stove 1 (H1 = 16 cm , D1 = 10 cm); stove 2 (H2 = 16 cm, D2 = 12 cm) and stove 3 (H3 = 20 cm, D3 = 12 cm). While the fuel was branches of acacia wood with moisture content 7.26%, 9.63% and 12.58%. Procedure water boiling test (WBT) was used to evaluating stove performance. Additional parameter such as operating time and flame temperature of the stove is including in evaluation of stove performance. The experimental results obtained average start up time is to 2 minutes and operating time of gasification stove reach to 32 minutes. Thermal efficiency of the forced draft gasification stove is approximately 25.03% to 30.44%, with the highest efficiency is on the stove with 12 cm diameter, 16 cm high and fuel with 9.63% biomass moisture content. Although the resulting flame is reddish yellow, but the forced draft gasification stove capable of producing up to 3.43 kWth thermal energy with the highest flame temperature reaches 933OC. The results show that the gasification stove operating conditions greatly affect the performance of the stove.Item Kinerja Kompor Gasifikasi PP-Plus Berbahan Bakar Limbah Sawit(2012-10-31) Joel, Saut Melky; Zulfansyah; Fermi Muhammad IwanEnergi untuk kebutuhan memasak sektor rumah tangga di Indonesia masih bergantung pada liquified petroleoum gas (LPG) dan minyak tanah. Permasalahan distribusi dan sifat bahan bakar yang tidak dapat diperbaharui menyebabkan dibutuhkannya energi alternatif. Limbah sawit merupakan bahan bakar yang potensial sebagai alternatif (pelepah, tandan kosong dan cangkang sawit). Dengan kompor gasifikasi, penggunaan limbah sawit lebih efisien dan ramah lingkungan. Penelitian ini dilakukan untuk melihat pengaruh variasi bahan bakar dan ukuran bahan bakar terhadap kinerja kompor PPPlus dengan menggunakan analisa water boiling test (WBT). Efisiensi termal yang dihasilkan 8.25-34.44% dengan waktu start up dan waktu operasi maksimal mencapai 3.45 menit dan 31.5 menit. Penggunaan limbah sawit pada kompor PP-Plus menghasilkan firepower 2.85-6.94 kWth. Nyala api mampu mencapai suhu hingga 7820C dengan bahan bakar pelepah sawit. hasil penelitian menunjukkan adanya pengaruh variabel proses terhadap kinerja kompor gasifikasi PP-PlusItem Kinerja Kompor Gasifikasi Turbo Stove(2012-10-29) Damanik, Darwis; Helianty Sri; Rionaldo Hari; ZulfansyahKrisis energi pada sektor rumah tangga dapat diantisipasi dengan memanfaatkan biomassa sebagai bahan bakar kompor gasifikasi. Penelitian kinerja kompor gasifikasi turbo stove bertujuan untuk memberi informasi kinerja turbo stove dengan beberapa biomassa. Biomassa yang dipilih pada percobaan ini adalah tropical wood, tempurung kelapa, cangkang sawit dan pelepah sawit. Pengujian kinerja turbo stove menggunakan metode water boiling test (WBT). Waktu start-up turbo stove rata – rata 3,27 menit. Turbo stove membutuhkan rata – rata 15,45 menit untuk mendidihkan 2,5 liter air. Efisiensi termal turbo stove 22,15 – 36,1% dan fire power 2,5 – 5 kWth. Efisiensi termal tertinggi 36,1% dengan bahan tropical wood pada fase cold start dan terendah 22,15% dengan bahan bakar cangkang sawit pada fase cold start. Temperatur nyala api kompor turbo stove 574 – 722oC. Hasil penelitian menunjukkan bahwa berbagai jenis biomassa berpotensi dikembangkan sebagai bahan bakar turbo stove.Item Konsumsi Air Dan Potensi Penghematan Pada Proses Produksi CPO PT. Perkebunan Nusantara V Pabrik CPO Sei Galuh(2013-05-07) Febria Sari, Eka; Zulfansyah; RimrawarmanAgroindustri sawit sangat berkembang pesat di Indonesia. Sampai tahun 2008, luas kebun sawit di Indonesia telah mencapai 7,4 juta hektar dengan produksi crude palm oil (CPO) lebih dari 18,7 juta ton per tahun. Setiap tahun produksi CPO yang dihasilkan oleh industri sawit terus meningkat, sehingga secara otomatis akan membuat areal perkebunan sawit di Propinsi Riau semakin bertambah luas. Proses pengolahan sawit menjadi CPO membutuhkan air dalam jumlah banyak, sehingga akan memproduksi limbah cair dalam jumlah yang besar juga. Tujuan dari studi ini adalah mengetahui kebutuhan air dan produksi limbah cair, serta mempelajari cara penghematan penggunaan air pada Pabrik CPO. Limbah cair pada Pabrik CPO dipompakan ke fat pit dan selanjutnya akan dialirkan ke kolam pengolahan limbah. Debit kebutuhan air dan produksi limbah cair dapat dihitung melalui neraca massa total Pabrik. Pabrik CPO yang neraca airnya dijadikan sampel adalah PT. Perkebunan Nusantara V Pabrik CPO Sei GaluhItem Optimasi Pembuatan Pulp Semi-Mekanis Tandan Kosong Sawit: dengan Metode RSM-CCD(2014-02-04) Satria, Rendy; Maulvi Sani, Ikmal; Holy, Valiant; Rionaldo, Hari; Zulfansyah; Amraini, Said ZulPercobaan pembuatan pulp TKS dengan proses semi mekanis dipelajari pada reaktor batch skala laboratorium. Rancangan percobaan RSM-CCD digunakan untuk mempelajari pengaruh konsentrasi NaOH 16, 18 dan 20%, nisbah padatan terhadap cairan 118, 1/10 dan 1112, dan waktu pemasakan 30, 45 dan 60 menit terhadap kualitas pulp. TKS (yield dan kadar lignin). Dari hasil percobaan diperoleh yield pulp 32 - 52% dengan kadar lignin 8 - 23%. Analisis Respone Surface dan Multi-optimisasi untuk mendapatkan kondisi operasi optimum, yang menghasilkan yield pulp maksimum dan. kadar lignin minimum, dilakukan menggunakan bantuan software Minitab (Trial Version). Hasil analisis RSM memperlihatkan bahwa nisbah padatan terhadap cairan memiliki pengaruh yang paling dominan terhadap kualitas pulp, diikuti dengan waktu pemasakan dan konsentrasi NaOH. Kualitas pulp optimum, yaituyield 38% dan kadar lignin 14% . dicapai pada kondisi operasi konsentrasi NaOH 18%, nisbah padatan terbadap cairan 118,0765 dan waktu pemasakan 28,456 menit.Item OPTIMASI PRODUKSI BIODIESEL DARI MINYAK BIJI KARET DENGAN RESPONSE SURFACE METHODOLOGY(2013-05-04) Zulfansyah; Iwan Fermi, Muhammad; Maa Rasyid, CiciResponse surface method was used for the evaluation of the effects of various factors on the synthesis of biodiesel from rubber seed oil with sodium hydroxide as the catalyst. The production of biodiesel was optimized and model response equation was obtained, and able to predict the biodiesel production from the values of the three main factors. It would seem that the catalyst concentration and oil/methanol ratio predominatly determined the reaction convertion, while the reaction temperature had no significant effect on the yield of biodiesel. The catalyst concentration and oil/methanol ratio showed positive effects on the perolehan of biodiesel. However, there were no significant interactions among the variables according to test of statistic significance. The yield of biodiesel product predicted at the optimum condition was 86%. Finally, biodiesel from rubber seed oil at the optimum condition has density of 882 kg/m3, kinematic viscosity at 40oC was 7.70 mm2/s, flash point at 23oC, cetane number was 62,06 and acid value was 0,16 mg KOH/g.Item ORGANOSOLV PULPING PELEPAH SAWIT DENGAN PELARUT ASAM FORMIAT(2013-03-07) Zulfansyah; Fermi, M. IwanThe pulping of oil-palm petioles with formic acid medium has been studied in an effort to develop an efficient and environmentally safe process. This research was conducted to study the effects of pulping condition on the pulp yield and lignin content. Experiment was run at formic acid concentration 65, 75 and 85%-wt, hydrogen peroxide concentration 1, 3 and 5%-wt and cooking time 1, 2 and 3 hour. The cooking of oil-pahn petioles was accelerating in reactor bed at boiling temperature of formic acid in standard condition. The results obtained pulp yield 33.30 - 50.09% with lignin content 11.20 - 19.12% varies depend on cooking condition. The effect of cooking variable on the pulp yield and hgnin content were studied by empirical model in second order. The empirical models satisfied to experimental data with confidence level of 95%.Item PEMBUATAN BIODIESEL DARI CPO PARIT DENGAN REAKTOR MEMBRAN(2013-05-04) Syarfi; Zahrina, Ida; ZulfansyahTantangan pembuatan biodiesel secara konvensional antara lain sulit mencapai konversi yang tinggi tanpa menggunakan energi yang besar dan proses yang panjang. Salah satu teknologi alternatif yang sangat mungkin dikembangkan untuk menangani masalah tersebut adalah reaktor membran. Penelitian pembuatan biodiesel menggunakan bahan baku CPO parit dengan kadar FFA 90%, methanol, dan asam sulfat sebagai pereaksi dan katalis. Penelitian menggunakan reaktor membran sebagai alat utama, yang dilengkapi dengan alat pemanas umpan, tangki umpan, dan pompa. Penelitian dilakukan dengan memanaskan CPO parit sampai temperatur 70C. Perbandingan molar umpan terhadap methanol adalah 1:5 dan katalis1 % berat. Campuran CPO parit, methanol dan katalis diumpankan ke reaktor membran pada tekanan 0,5 , 1, 1,5 dan 2 bar dengan waktu tinggal dalam reaktor 2 jam dengan cara mensirkulasikan retentat. Hasil penelitian menunjukkan bahwa konversi relatif mencapai 89,2% pada tekanan 2 bar. Fluks rata mencapai 10 L/jam-m2. Viskositas, densitas, dan titik nyala telah memenuhi baku mutu biodiesel.Item Pembuatan Pulp Pelepah Sawit dengan Pelarut Asam Formiat(2014-02-04) Zulfansyah; Fermi, Muhammad Iwan; Amraini, Said ZulThe pulping of oil palm fronds with formic acid medium. has been studied in an effort to develop an efficient and environmentally safe process. This research is conducted to study the effect of pulping conditions on the pulp yield and lignin content. The experiment was run at concentration of formic acid in cooking liquor of 65, 75, 85%-wt, hydrogen peroxide concentration in cooking liquor of 1, 3" 5%-wt, cooking time of 1, 2, and 3 hours. The cooking of oil palm fronds was accelerating in a reactor batch at the boiling temperature of formic acid in standard condition. The effects of dependent variables on the independent variables were studied by statistical modelling using a second-order incomplete factorial design. The emprical models were deduced to satisfactorily fit experimental data with-the values of independent variables and allow quantifiying the effects of each variables. The most influential factor on yield pulp ·wasformic acid concentration. Whereas, the cooking time has greater influence on lignin content.Item Pembuatan Pulp Sabut Sawit dengan Proses Acetosolv(2014-02-04) Amraini, Said Zul; Zulfansyah; Rionaldo, Hari; Mukhtar, AkmalSabut sawit yang merupakan produk samping pabrik CPO yang belum dimanfaatkan dengan baik. Selama ini sabut sawit digunakan sebagai bahan bakar boiler yang menghasilkan emisi gas dan dapat menyebabkan pemanasan global. Percobaan pembuatan pulp sabut sawit dimaksudkan untuk mengkaji kemungkinan pemanfaatan sabut sawit sebagai bahan baku produk pulp. Percobaaan pembuatan pulp sabut sawit dilakukan secara batch pada skala Iaboratorium. Variabel percobaan yang dipelajari, yaitu konsentrasi asamklorida 0,10; 0,15; 0,2%-berat, waktu reaksi IS, 30; 60, 90, 120, 150 menit dan nisbah cairan-padatan lOll; 12/1; 14/1, pada konsentrasi asam asetat 85%. Hasil percobaan menunjukkan bahwa sabut sawit dapat dijadikan pulp dengan proses acetosolv dan menghasilkan yield 75,1-85,3% dan kadar lignin pulp 26-43%, yang bervariasi menurut kondisi proses. Seluruh variabel proses berpengaruhnya terhadap yield dan kadar lignin, dan kualitas pulp yang dihasilkan masih rendah.Item Pembuatan Pulp Semi Kimia dari Ampas Tebu dengan Ekstrak Abu Tandan Kosong Sawit(2013-05-08) Holy, Valiant; Zulfansyah; Iwan Fermi, MuhammadIn Indonesia, pulp industry has increased in the last two decades. In 1987, the pulp production capacity was only 0.5 million tons and increased to 6.5 million ton in 2007. Until now, 70% of pulp`s raw material came from natural forest. Wood as pulp`s raw material need to be reduced due to environmental concern and its availability continue to decline. Bagasse was lignoselulose which have potential as an alternative resource for pulp. Semi chemical process were pulpmaking process that combining chemical and mechanical process. This research was studied the physical properties of pulp with liquid to solid ratio (8/1, 10/1, and 12/1) and cooking time (2, 3, and 4 hours). The result shows that bagasse pulp have yield of 58.17% - 61.04%, lignin 18.27% - 21.34%. Yield pulp from bagasse has been achieved requirement for semichemical pulp.Item Pembuatan Pulp Semi Mekanis dari Batang Jagung dengan Ekstrak Abu Tandan Kosong Sawit(2013-05-08) Maulvi Sani, Ikmal; Zulfansyah; Iwan Fermi, MuhammadIndonesia was ranked ninth producers to supplied the pulp industry. Wood still used as the main raw materials with natural wood supply more than 70%. The pulp industry worldwide always faced a problem on lack of raw material due to deforestation. Corn stalks is an alternative source of non wood fiber for making pulp. This research was investigated the influence variable process with chemi-mechanical pulping of corn stalk toward pulp properties. The variable process were used solid to liquor ratio (8/1; 10/1; and 12/1) and cooking time (2 hour; 3 hour; and 4 hour). The pulping of corn stalk was accelerated in batch reactor with normal boiling temperature. The results showed pulp with yield 53,43 - 58,50%.and lignin 11,35 - 13,91%.. The influence of variable process on the pulp properties was significant. The increased variable process were caused decreased of yield and Indonesia was ranked ninth producers to supplied the pulp industry. Wood still used as the main raw materials with natural wood supply more than 70%. The pulp industry worldwide always faced a problem on lack of raw material due to deforestation. Corn stalks is an alternative source of non wood fiber for making pulp. This research was investigated the influence variable process with chemi-mechanical pulping of corn stalk toward pulp properties. The variable process were used solid to liquor ratio (8/1; 10/1; and 12/1) and cooking time (2 hour; 3 hour; and 4 hour). The pulping of corn stalk was accelerated in batch reactor with normal boiling temperature. The results showed pulp with yield 53,43 - 58,50%.and lignin 11,35 - 13,91%.. The influence of variable process on the pulp properties was significant. The increased variable process were caused decreased of yield and Indonesia was ranked ninth producers to supplied the pulp industry. Wood still used as the main raw materials with natural wood supply more than 70%. The pulp industry worldwide always faced a problem on lack of raw material due to deforestation. Corn stalks is an alternative source of non wood fiber for making pulp. This research was investigated the influence variable process with chemi-mechanical pulping of corn stalk toward pulp properties. The variable process were used solid to liquor ratio (8/1; 10/1; and 12/1) and cooking time (2 hour; 3 hour; and 4 hour). The pulping of corn stalk was accelerated in batch reactor with normal boiling temperature. The results showed pulp with yield 53,43 - 58,50%.and lignin 11,35 - 13,91%.. The influence of variable process on the pulp properties was significant. The increased variable process were caused decreased of yield and lignin content pulp.Item Pemodelan Dinamik dan Simulasi Siklus Nitrogen pada Kolam Pembesaran Lele(2013-06-24) Savitri, Kesni; Zulfansyah; Asmura JeckyNitrogen is an important element in aquatic environments. Utilization of nitrogen contained in the feed as a source of energy and simultaneously toxic to aquatic systems, especially in catfish ponds. The nitrogen concentration in the form ammonia is toxic to catfish if it higher than lethal dose 0,6 mg N/l, so the nitrogen concentration in the form of ammonia has to be kept at low value, below 0.6 mg N/l. The interactions between various nitrogen are complex and difficult to analysis. However, it can be described by a mathematical model. So the dynamic modeling and simulation aimed to predicting the nitrogen dynamics and study the effect of variations in eviromental management is a % protein in feed, feed rate, and water exchange rate on nitrogen dynamics. In this research variation % protein feed used were 20%,30% and 40%. Variations feed rate based on fish weight were 2,9%, 3,9% and 4,9% and water exchange rate used were 5%, 10% and 15%. The data conditions of catfish pond and initial value of nitrogen concentration were obtained from literature. Nitrogen dynamics model which formed a system of ordinary differential equation 1 was solved by Runge-Kutta order 4 method. Models was implemented using Matlab. The result accumation N-NH3 of All variations of pond management below of N-NH3 toxicity limit for catfish is < 0.6 mg N/l. However, the concentration of N-NH3 should be kept from 0,02 to 0,08 mg N / l. So the recomended management treatment is giving 20% protein, 2,9% feed rate and 15% rate of water exchange.Item Pengaruh Kondisi Proses Pencampuran Terhadap Sifat Mekanik Wood Plastic Composite Berbasis Batang Sawit(2013-05-17) Efrizal, Rico; Zulfansyah; BahruddinBatang sawit merupakan salah satu limbah perkebunan yang cukup besar jumlahnya di Indonesia. Limbah ini dapat dimanfaatkan untuk menghasilkan berbagai produk, seperti dijadikan sebagai bahan untuk pembuatan Wood Plastic Composite (WPC). Penelitian ini bertujuan untuk menentukan kondisi operasi (suhu, kecepatan rotor, dan waktu pencampuran) yang optimal untuk proses produksi Wood Plastic Composite. Sebagai variabel penelitian adalah suhu sebesar 1700C, 1750C, dan 1800C; kecepatan rotor 60 dan 80 rpm; dan waktu pencampuran 10 dan 15 menit. Pembuatan sampel WPC menggunakan internal mixer pada nisbah serbuk batang sawit/Polypropilene 50/50; plasticizer parafin 2%; dan compatibilizer Maleic Anhydride Polypropilene (MAPP) 5%. Sifat mekanik yang diuji adalah tensile strength menggunakan standar JIS K 6781 dan tear strength menggunakan standar JIS K 6781 type B. Hasil penelitian menunjukkan bahwa kondisi pencampuran optimal diperoleh pada suhu 1700C, kecepatan rotor 80 rpm dan waktu pencampuran 15 menit, dimana tensile strength yang diperoleh adalah sebesar 24, 81 MPa dan tear strength sebesar 61,31 MPa.Item PENGARUH SUHU, KECEPATAN ROTOR, DAN WAKTU PENCAMPURAN TERHADAP SIFAT DAN MORFOLOGI WOOD PLASTIC COMPOSITE BERBASIS BATANG SAWIT(2013-05-15) Efrizal, Rico; Zulfansyah; BahruddinOil palm trunk one of waste from plantation with huge population in Indonesia. Oil palm trunk used to made variety product, for example as filler for wood plastic composite (WPC). Objective of this study to determine process condition (temperature, rotor speed, and blending time) to increase quality of WPC. Internal mixer type Labo Plastomill used to blend oil palm stalk powder (OPSP) and polypropylene (PP) 50/50 by ratio while 2% plasticizer paraffin and 5% compatibilizer maleic anhydride polypropylene (MAPP) as additives. Blending process varied temperature 170ºC, 175°C, and 180ºC with rotor speed 60 rpm and 80 rpm for 10 minute and 15 minute. Mechanical properties for tensile strength used JIS K 6781 standard. This study show optimal mixing condition in temperature 170°C, rotor speed 80 rpm and mixing time 15 minute. Tensile strength obtain to 24,81 MPa.Item PENGOLAHAN LIMBAH CAIR PABRIK CPO DENGAN TEKNOLOGI OZONASI(2013-01-17) Mawarti; Syarfi; ZulfansyahThe extraction of crude palm oil (CPO) yielding palm oil mill effluent (POME) 60% of total production capacity. POME generally have exceeded organic matter of regulation standart of Kepmen LH No.KEP- 51/MENLH/1995. Ozonation is one of other ways that may be apllied for wastewater treatment. The technology is conducted by contacting POME with ozone. Ozone generated from ozonizer 18 watt power. Consentration ozone that generated is 0,1068 mg/s. Ozone use to reduction COD, Oil and fats, and Total Solid (TS) of POME with pH and contacting time variation. Variation of pH is 4,25; 7 and 10 with NaOH addition and contacting time variation is 10, 20, 30 and 40 minutes. The research resulting obtained decrease of POME compound organic matter. The effisiensy of COD removal maximum reaches 77,93% on pH 4,25 at 40 minutes conacting time, oil and fats removal maximum reaches 60,81% on pH 10 at 20 minutes contacting time, and effisiency of TS removal maximum reaches 98,51% on pH 10 at 10 minutes ozonation.