UR - Scientific Work Lecturer

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Browsing UR - Scientific Work Lecturer by Author "Ahmad, Adrianto"

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    KINERJA BIOREAKTOR HIBRIO ANAEROB BERMEOIA TANOAN DAN PELEPAH SAWIT DALAM PENYISIHAN COD
    (2014-02-04) Ahmad, Adrianto; Amraini, Said Zul; Luturkey, Vance Andre
    Kandungan Chemical Oxygen Demand (COD) yang tinggi dalam limbah cair pabrik minyak sawit dapat menyebabkan terhambatnya kontak antara udara dengan badan air penerima sehingga mengakibatkan berkurangnya kelarutan oksigen dalam badan air -penerima tersebut Oleh karena itu, penting dilakukan terobosan baru untuk mendapatkan teknologi __ pengolahan limbah cair yang handal agar kandungan COD menjadi rendah. Salah satu teknologi pengolahan limbah cair tersebut adalah btoreaktor hibrid anaerob. Penelitian ini bertujuan.mengkaji kinerja beberapa jenis bioreaktorhibrid anaerob dalam penyisihan COD dalam limbah cair pabrik minyak sawit Pada penelitian ini digunakan dua unit bioreaktor yakni bioreaktor hibrid anaerob dengan media imobilisasi sel tandan kosong sawit dan: bioreaktor hibrid anaerob dengan media imobilisasi sel pelepah sawit dengan volume kerja - 2,5 m3• Proses pengolahan dilakukan dengan variasi laju pembebanan zat organik, yaitu10; 12,5; 14,28; 16,6; 20; 25; 33,3; 50 kg COD/m3hari. Hasil penelitian menunjukkan bahwa penyisihan CODyang tertinggi -dicapai sebesar 82,67% dengan laju pembebanan organik 14,28 kg COD/m3hari pada bioreaktor bermedia tandan kosong sawit dan 84% untuk laju pembebanan organik 16,6 kg COD/ m-hari pada bioreaktor bermedia pelepah sawit Dengan demikian, kedua bioreaktor hibrid anaerob ini dapat digunakan untuk mengolah limbah cair -industri minyak sawit dengan beban CODtinggi
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    Pengaruh Konsentrasi Fosfor terhadap Biokonversi Reject Nanas menjadi Bioetanol
    (2014-01-21) Khairat; Ahmad, Adrianto; Aini, Sarifah
    Needs of bioethanol in Indonesia in 2011 reached 1.4 million kilo liters / year, while national production of bioethanol at present about 240 million liters / year. This suggests that ethanol demand in Indonesia is still not being met. Therefore, it is important to do research to produce bioethanol from renewable raw material or non-fossil material. Bioethanol can be made by fermentation using microorganisms help. The purpose of this study was to determine the effect of phosphorus concentration on bioconversion reject pineapple into bioethanol with a maximum ethanol content. The substrate used was obtained from the pineapple and pineapple reject microorganism used was Saccharomyces cereviciae. Bioethanol production process consists of several stages, namely preparation of raw materials, fermentation, and purification products. The independent variable in this study is the variation of the concentration of phosphorus concentration 0.04%, 0.05%, 0.06%, 0.07%, 0.08% and the fermentation time 12, 24, 36, 48, 60, 72, 84, 96, 108, 120 hours, while variable fixed at 0.3% of yeast concentration, glucose concentration of 16%, and urea concentration of 0.5%. The results showed that the optimum phosphorus concentration of 0.08% is obtained which is capable of producing ethanol by 10%, ethanol yield 6.67% and 5.12 g cell dry weight / L within 36 hours of fermentation.
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    PENGARUH KONSENTRASI FOSFOR TERHADAP BIOKONVERSI REJECT NANAS MENJADI BIOETANOL
    (2014-03-10) Ahmad, Adrianto; Khairat; Aini, Sarifah
    Needs of bioethanol in Indonesia in 2011 reached 1.4 million kilo liters / year, while national production of bioethanol at present about 240 million liters / year. This suggests that ethanol demand in Indonesia is still not being met. Therefore, it is important to do research to produce bioethanol from renewable raw material or non-fossil material. Bioethanol can be made by fermentation using microorganisms help. The purpose of this study was to determine the effect of phosphorus concentration on bioconversion reject pineapple into bioethanol with a maximum ethanol content. The substrate used was obtained from the pineapple and pineapple reject microorganism used was Saccharomyces cereviciae. Bioethanol production process consists of several stages, namely preparation of raw materials, fermentation, and purification products. The independent variable in this study is the variation of the concentration of phosphorus concentration 0.04%, 0.05%, 0.06%, 0.07%, 0.08% and the fermentation time 12, 24, 36, 48, 60, 72, 84, 96, 108, 120 hours, while variable fixed at 0.3% of yeast concentration, glucose concentration of 16%, and urea concentration of 0.5%. The results showed that the optimum phosphorus concentration of 0.08% is obtained which is capable of producing ethanol by 10%, ethanol yield 6.67% and 5.12 g cell dry weight / L within 36 hours of fermentation.
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    PENGARUH KONSENTRASI GLUKOSA TERHADAP BIOKONVERSI REJECT NANAS MENJADI BIOETANOL
    (2014-02-05) Ahmad, Adrianto; AmrainI, Said Zul; Sntikno, Bambang
    Bioethanol can be produced by fermentation of materials containing starch, glucose and cellulose fibers. This research tried to produce bioethanol from pineapple reject which is material containing glucose. The purpose of this research was to determine the influence 0/ glucose concentration on the acquisition of ethanol and to obtain the optimum glucose concemration for the production of bioethanol from pineapple reject raw materials. Bioethanol production consists of several stages, namely preparation of raw materials; fermentation and purification products. Variahles for the research is the concentration of glucose: 13%, 14%, i5%, 16% and 17% by fermentation time l2. 14, 36, 48, 60, 72, 84, 96, J08, and J20 hours. Anaerobic fermentation process tokes place at pH 4.5 by using Saccharomyces cerevisiae which will outline the glucose into ethanol Added nutrients are urea and NPK respectively 0.5% and 0.06% of the volume of fermentation medium. The FeSUitsshowed that the highest ethanol content of 17% and the highest yield of 11.33% is obtained at a concentration of J6% gluoose with 7.34 gIL cell dry within 84 hours of fermentation.
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    Pengaruh Konsentrasi Nitrogen terhadap Pengomposan Serat Buah Sawit dengan Teknologi Biofertilizer
    (2014-01-21) Ahmad, Adrianto; Khairat; Mailinda, Tirta
    Production of CPO in Indonesia continues increase with increasing amount of palm oil’s production. Along with increased production of palm oil, the amount of waste generated has also increased, one of them is oil palm mesocarp fiber. The largest component in oil palm mesocarp fiber is cellulose, hemicellulose, lignin and small amounts of compounds of N, P and micro nutrients, so that potential to be processed into compost. This research objective was to determine the influence of nitrogen concentration in composting process and determine the duration of the composting process oil palm mesocarp fiber. Stages of this research include the preparation of starter, substrate preparation, preparation of bioreactor, and the composting process. Composting method used is windrow aerobic system. The composting process takes place by adding a mixed culture as a starter with concentration 30% and adding urea as nitrogen source by varying the nitrogen concentration 0%, 0.5%, 1%, 1.5%, and 2%. Parameters observed in this study were water content, pH, temperature, levels of C, N and ratio C / N. The results of this study indicate that the addition of nitrogen concentration can speed up the composting process. The optimum concentration of nitrogen obtained on nitrogen concentration of 1.5% on day 40 with C / N ratio of 14.29
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    PENGARUH KONSENTRASI NITROGEN TERHADAP PENGOMPOSAN SERAT BUAH SAWIT DENGAN TEKNOLOGI BIOFERTILIZER
    (2014-03-10) Ahmad, Adrianto; Khairat; Mailinda, Tirta
    Production of CPO in Indonesia continues increase with increasing amount of palm oil’s production. Along with increased production of palm oil, the amount of waste generated has also increased, one of them is oil palm mesocarp fiber. The largest component in oil palm mesocarp fiber is cellulose, hemicellulose, lignin and small amounts of compounds of N, P and micro nutrients, so that potential to be processed into compost. This research objective was to determine the influence of nitrogen concentration in composting process and determine the duration of the composting process oil palm mesocarp fiber. Stages of this research include the preparation of starter, substrate preparation, preparation of bioreactor, and the composting process. Composting method used is windrow aerobic system. The composting process takes place by adding a mixed culture as a starter with concentration 30% and adding urea as nitrogen source by varying the nitrogen concentration 0%, 0.5%, 1%, 1.5%, and 2%. Parameters observed in this study were water content, pH, temperature, levels of C, N and ratio C / N. The results of this study indicate that the addition of nitrogen concentration can speed up the composting process. The optimum concentration of nitrogen obtained on nitrogen concentration of 1.5% on day 40 with C / N ratio of 14.29.
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    PENGARUH WAKTU TINGGAL HIDROIIK (wth) TERHADAP PENYISIHAN COD LIMBAH CAIR PABRIK MINYAK SAWIT MENGGUNAKAN BIOREAKTOR HIBRID ANAEROB BERMEDIA BATU SKALA PILOT PLANT
    (2014-02-05) Firdha, Irena; Ahmad, Adrianto; Amraini, Said Zul
    Industrial palm oil waste water has increased along with growth the palm oil industry in the Indonesia; Industrial palm oil waste water is a very dangerous organic poUutants. In conllentionoJ wastewater treatment with anaerobic pond. microorganisms capable of degrading organic compounds from wastewater in a long time. For this case operation of an anaerobic hybrid bioreactor with the stone be the media expected to increase the ability of microorganisms to degrade organic material. The purpose of this mldy are to assess and study the hydraulic residence time of substrate to reduce COD Industrial palm oil waste water in anaerobic hybrid bioreactor. Research carried out by a few variations ofWTll. i.e. I, 2. 3. and 4 day. Each WIH'operateduntil steady state was obtained based on COD data. Results showed that WTll· offect COD removal efficiency. that are concentration of COD of 80% on WIll 1 day, 82% on WTH 2 day. 88% on Wl1l 3 day, and 90% in WTH 4 dtJy. So, designed a hybrid bioreactor with the stone be the media system lhnt utilkes the ability maintain the biomass can be realized; so the ejfort to; build a technology that is used to treat wastewater effectively and efficiently can be applied.
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    UJI KlNERJA BIOREAKTOR HIBRIO ANAEROB DALAM MENGOLAH LIMBAH CAIR PABRIK KELAPA SAWIT DENGAN BEBAN KEJUT
    (2014-02-06) Ahmad, Adrianto; Bahruddin; Amraini, Said Zul; Andrio, David
    The performance of anaerobic processes in the bioconversion of palm oil mill effluent into gaseous fuel is ve/y dependent on the concentration of biomass. Effort to increase the concentration of anaerobic biomass can be done by using anaerobic hybrid bioreactor. The bioreactor used had 3 chambers, each divided for an up and down flow pattem and having a working volume of 2,5 rrr. This study uses two anaerobic hybrid bioreactors equipped with cell immobilization media. Media used in cell immobilization is a medium density form of solid palm oil mills waste, namely: empty fmit bunch and palm midrib. Both bioreactors tested their performance by increasing feed flow rate unexpectedly by 50%, 100% and 150% under room temperature conditions and continuous operation. The results showed that the anaerobic hybrid bioreactor system was capable of converting single-phase oil palm mill effluent with a good performance, and testing with the feed Dow rate increased abruptly by 50%, 100%, and 150% indicates that the recovery time of the anaerobic hybrid bioreactor system is Single-phase of media empty fruit bunches