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Pengolahan Limbah Cair Rumah Sakit secara Sonochemical Kusuma, Laila; Darmadi, Darmadi; Adisalamun, Adisalamun
Jurnal Litbang Industri Vol 7, No 1 (2017)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Hospital as a service provider has an important role in human life, especially for people who are experiencing physical and mental disorders. Various types of diseases and therapies performed in hospitals has made it as one of the producers of hazardous and infectious waste that requires special handling and processing so as not to pollute the water, soil, and air environment. Hospital wastewater treatment was conducted to determine the ability of sonochemical method to reduce level of Chemical Oxygen Demand (COD) and determine the optimum conditions of the parameters used by the design of Response Surface Methodology Box-Behnken. The parameters that affected this process was the concentration of hydrogen peroxide (H2O2), pH, and reaction time. The Waste used was taken from the waste water treatment plant in Zainoel Abidin General Hospital in Banda Aceh with COD value 260.65 ppm. The optimum conditions of this treatment process occured at pH 2, H2O2 concentration 500 ppm, and reaction time 119.98 minutes with reduction of COD was 81.88%.ABSTRAKRumah sakit sebagai penyedia layanan jasa memegang peranan cukup penting dalam kehidupan manusia, terutama bagi orang-orang yang sedang mengalami gangguan fisik dan mental. Berbagai jenis penyakit dan terapi yang dilakukan di rumah sakit telah menjadikannya sebagai salah satu penghasil limbah berbahaya dan infeksius yang memerlukan penanganan dan pengolahan khusus agar tidak mencemari lingkungan yaitu air, tanah dan udara. Pengolahan limbah cair rumah sakit dilakukan untuk mengetahui kemampuan metode sonochemical dalam menurunkan kadar Chemical Oxygen Demand (COD) dan menentukan kondisi optimum dari parameter yang digunakan berdasarkan disain Response Surface Methodology Box-Behnken. Parameter yang mempengaruhi proses ini adalah konsentrasi hidrogen peroksida (H2O2), pH, dan waktu reaksi. Limbah yang digunakan diambil dari instalasi pengolahan air limbah di Rumah Sakit Umum Zainoel Abidin Kota Banda Aceh dengan nilai COD sebesar 260,65 ppm. Kondisi optimum dari proses pengolahan terjadi pada pH 2, konsentrasi H2O2 500 ppm, dan waktu reaksi 119,98 menit dengan penurunan COD sebesar 81,88 %

PROCESS OPTIMIZATION FOR PRODUCTION OF ALKYL POLYGLYCOSIDES NONIONIC SURFACTANT USING RESPONSE SURFACE METHODOLOGY Adisalamun, Djumali Mangunwidjaja, ani suryani, Titi candra Sunarti dan Yandra Arkeman
Jurnal Teknologi Industri Pertanian Vol. 22 No. 1 (2012): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACTDevelopment of the surfactant is strongly influenced by using material to produce alkyl polyglycosides (APG) surfactant, such as starch or glucose and dodecanol. The objectives of this study were to obtain optimization of process conditions for the APG production from glucose and dodecanol using the response surface methodology and to characterize the APG. The independent variables used were glucose-dodecanol mol ratio of 1:3 to 1:6 and acetalization temperature of 100-120oC. The optimum process conditions for the synthesis of APG from glucose was obtained at mole ratio of glucose to dodecanol of 1:4.7 and temperature of 111.4°C with the APG emulsion stability of y 75%. The optimum process conditions were verified to strengthen the model equations obtained using response surface method. The results of verification were tested surface tension, interfacial tension, HLB, and confirmation of its structure. Surface tension and interfacial tension decreased indicated by the increasing concentration of surfactant. HLB obtained was the O/W emulsifier and as a solubilizing agent.Keywords: alkyl polyglycosides(APG), dodecanol, emulsion stability

Glycerolysis for Lowering Free FattyAcid of Waste Cooking Oil M. Dani Supardan; . Adisalamun; Yanti Meldasari; Yulia Annisa; . Mahlinda
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.245 KB)

Glycerolysis can be a useful alternative for lowering free fatty acid content present in the sustainable feedstock of waste cooking oil. In the present work, the effect of reaction parameters such as molar ratio of oil to glycerol (1:1, 1:2 and 1:3), catalyst NaOH concentration (0.875, 1.3 and 1.75 %-w of oil) and mass ratio of oil to co-solvent hexane (2:1, 4:1, 8:1) have been investigated. The reaction parameters have a remarkable effect on the free fatty acid (in term of acid value) of waste cooking oil. The final acid value decreased with an increased in molar ratio of oil to glycerol from 1:1 to 1:2. A significant reduction in acid value was not observed with a further increase in molar ratio of oil to glycerol. It has been observed that the optimum catalyst concentration of 1.3% can be reduced acid value from 12.2 to 1 mg KOH/g oil in 20 min. The addition of hexane as co-solvent affected the reaction rate due to immiscibility of the oil and glycerol phases. However, a suitable amount of co-solvent must be added to achieve an optimum of acid value reduction.

Oil palm frond fibers pulp from kraft pulping process– effect of beating R.C.L. Nasrullah; Wan Rosli Wan Daud; . Pinalty; . Adisalamun
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 3 (2013): Addendum
Publisher : Syiah Kuala University

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The main objective of this research is to determine the effect of beating to physical, mechanical and optical properties of the paper. The pulp that is used in this research is pulp from Oil Palm Frond (OPF). Pulping method that was carried out in this research is the kraft pulping which was undergo in 4 different conditions (20% NaOH: 20% Na2S; 20% NaOH, 30% Na2S; 30% NaOH, 20% Na2S and 30% NaOH, 30% Na2S). The beating process is carried out using PFI Mill Beater and five amounts of beating were imposed to each pulp (0, 250, 500, 750 and 1500 rotations). From the result obtained, the freeness (CSF) of the pulp was decreased against the increasing amount of beating. The optimum amount of beating is at 1500 rotations for tensile strength (5981.1 N/m), bursting strength (660.72 kPa) and folding endurance (915). For tearing resistance (730.23 mN), the optimum amount of beating is at 250 rotations. Beating also contributes to reduce the brightness and the opacity too. The result show that suitable beating stage for kraft OPF pulp is at 1500 rotations, because almost all testing give optimum or closely to optimum result at this amount of beating.

KARAKTERISTIK PEMBAKARAN BATUBARA PERINGKAT RENDAH, CANGKANG SAWIT DAN CAMPURANNYA DALAM FLUIDIZED BED BOILER Mahidin Mahidin; Khairil Khairil; Adisalamun Adisalamun; Asri Gani
Reaktor Volume 12, Nomor 4, Desember 2009
Publisher : Dept. of Chemical Engineering, Diponegoro University

Penggunaan biomassa di unit pembangkit tenaga listrik sudah banyak dilaporkan oleh banyak peneliti dan praktisi. Tetapi, data untuk pembakaran cangkang sawit baik sebagai bahan bakar utama maupun pendamping sangat terbatas. Dalam studi ini, karakteristik pembakaran batubara peringkat rendah, cangkang sawit dan campurannya dalam fluidized bed boiler sudah dipelajari. Pada pembakaran batubara/cangkang sawit parameter pembakaran seperti konsentrasi gas, temperatur unggun dan efisiensi pembakaran dikaji terhadap efek udara berlebih (rasio udara/bahan bakar) dan ukuran partikel. Dalam pembakaran campuran, parameter-parameter tersebut dikaji terhadap pengaruh udara berlebih dan komposisi bahan bakar. Hasil percobaan menunjukkan bahwa efisiensi pembakaran maksimum untuk pembakaran batubara didapatkan pada udara berlebih tinggi (50%) dan ukuran partikel kecil (60+ mesh). Sedikit perbedaan teramati pada temperatur unggun dimana nilai maksimum muncul pada udara berlebih rendah (30%) tetapi ukuran partikel sama. Seperti yang diharapkan, fenomena yang sama juga terjadi untuk pembakaran cangkang sawit. Lebih lanjut, pada pembakaran campuran efisiensi pembakaran maksimum juga terjadi pada udara berlebih tinggi (50%) dan rasio bahan bakar (% berat) 50:50 untuk ukuran partikel 60+ mesh. Sama halnya dengan pembakaran batubara, temperatur unggun maksimum juga terlihat pada udara berlebih 30% dan rasio cangkang/batubara 20:80.

Quality Analysis of Yoghurt from Goat's Milk Using Starter Lactic Acid Bacteria Azwar Azwar; Hisbullah Hisbullah; Ahmad Irgi; Wari Julyadi; Adisalamun Adisalamun; Mukhlishien Mukhlishien; R. Nasrullah R. Nasrullah; Abubakar Abubakar; M.F. Zanil M.F. Zanil; J.M. Ali J.M. Ali
Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i1.3715

Yoghurt is a pro-biotic beverage produced from the fermentation process of milk, namely from vegetable milk (soy milk) or animal milk (goat's milk and cow's milk). During the fermentation process, the chemical reactions that occur will turn milk into yogurt with the help of lactic acid bacteria. In the health sector, yogurt plays a role in increasing the body's immunity, digestive tract health and can prevent osteoporosis. In general, yogurt circulating in the community still has low nutritional content, so a more in-depth study needs to be done. The goal of this research is to examine the quality of yogurt by manipulating certain variables and adding other components to increase the yogurt's quality. Streptococcus thermophilus and Lactobacillus bulgaricus were used as starter as much as 12.5 mL each (10% of 500 mL of cream milk). The fixed variables in this study were the volume of goat's milk 500 ml, cream concentration 6%, pasteurization temperature 85°C, pasteurization time 15 minutes and fermentation temperature 45°C, while the independent variables were varying the length of the fermentation process for 3, 4, 5, 6, 7, 8 and 9 hours. From this study, it was concluded that yogurt with optimum results was obtained at a fermentation time of 6 hours, the pH value was 3.8, lactic acid content was 1.305%, protein content was 5.54%, fat content was 4.98%, and moisture content was 84.10%.

Pengolahan Limbah Cair Rumah Sakit secara Sonochemical Laila Kusuma; Darmadi Darmadi; Adisalamun Adisalamun
Jurnal Litbang Industri Vol 7, No 1 (2017)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Hospital as a service provider has an important role in human life, especially for people who are experiencing physical and mental disorders. Various types of diseases and therapies performed in hospitals has made it as one of the producers of hazardous and infectious waste that requires special handling and processing so as not to pollute the water, soil, and air environment. Hospital wastewater treatment was conducted to determine the ability of sonochemical method to reduce level of Chemical Oxygen Demand (COD) and determine the optimum conditions of the parameters used by the design of Response Surface Methodology Box-Behnken. The parameters that affected this process was the concentration of hydrogen peroxide (H2O2), pH, and reaction time. The Waste used was taken from the waste water treatment plant in Zainoel Abidin General Hospital in Banda Aceh with COD value 260.65 ppm. The optimum conditions of this treatment process occured at pH 2, H2O2 concentration 500 ppm, and reaction time 119.98 minutes with reduction of COD was 81.88%.ABSTRAKRumah sakit sebagai penyedia layanan jasa memegang peranan cukup penting dalam kehidupan manusia, terutama bagi orang-orang yang sedang mengalami gangguan fisik dan mental. Berbagai jenis penyakit dan terapi yang dilakukan di rumah sakit telah menjadikannya sebagai salah satu penghasil limbah berbahaya dan infeksius yang memerlukan penanganan dan pengolahan khusus agar tidak mencemari lingkungan yaitu air, tanah dan udara. Pengolahan limbah cair rumah sakit dilakukan untuk mengetahui kemampuan metode sonochemical dalam menurunkan kadar Chemical Oxygen Demand (COD) dan menentukan kondisi optimum dari parameter yang digunakan berdasarkan disain Response Surface Methodology Box-Behnken. Parameter yang mempengaruhi proses ini adalah konsentrasi hidrogen peroksida (H2O2), pH, dan waktu reaksi. Limbah yang digunakan diambil dari instalasi pengolahan air limbah di Rumah Sakit Umum Zainoel Abidin Kota Banda Aceh dengan nilai COD sebesar 260,65 ppm. Kondisi optimum dari proses pengolahan terjadi pada pH 2, konsentrasi H2O2 500 ppm, dan waktu reaksi 119,98 menit dengan penurunan COD sebesar 81,88 %

Design of Control Loop Pairing in a UCT Bioreactor System Azwar Azwar; Hisbullah Hisbullah; Ahmad Irgi; Wari Julyadi; Adisalamun Adisalamun; Mukhlishien Mukhlishien; R. Nasrullah R. Nasrullah; Abubakar Abubakar; M.F. Zanil M.F. Zanil; J.M. Ali J.M. Ali
Jurnal Serambi Engineering Vol 7, No 1 (2022): Januari 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i1.3715

Yoghurt is a pro-biotic beverage produced from the fermentation process of milk, namely from vegetable milk (soy milk) or animal milk (goat's milk and cow's milk). During the fermentation process, the chemical reactions that occur will turn milk into yogurt with the help of lactic acid bacteria. In the health sector, yogurt plays a role in increasing the body's immunity, digestive tract health and can prevent osteoporosis. In general, yogurt circulating in the community still has low nutritional content, so a more in-depth study needs to be done. The goal of this research is to examine the quality of yogurt by manipulating certain variables and adding other components to increase the yogurt's quality. Streptococcus thermophilus and Lactobacillus bulgaricus were used as starter as much as 12.5 mL each (10% of 500 mL of cream milk). The fixed variables in this study were the volume of goat's milk 500 ml, cream concentration 6%, pasteurization temperature 85°C, pasteurization time 15 minutes and fermentation temperature 45°C, while the independent variables were varying the length of the fermentation process for 3, 4, 5, 6, 7, 8 and 9 hours. From this study, it was concluded that yogurt with optimum results was obtained at a fermentation time of 6 hours, the pH value was 3.8, lactic acid content was 1.305%, protein content was 5.54%, fat content was 4.98%, and moisture content was 84.10%.

Pemanfaatan Serbuk Gergaji untuk Pengasapan Kayu dan Pengolahan Air Kolam Lele Dumbo Mirna Lubis; Darmadi Darmadi; Hisbullah Hisbullah; Adisalamun Adisalamun
Jurnal Mandala Pengabdian Masyarakat Vol. 3 No. 2 (2022): Jurnal Mandala pengabdian Masyarakat
Publisher : Progran Studi Farmasi STIKES Mandala Waluya

Kegiatan pengabdian ini dilaksanakan bermitra dengan usaha pengolahan kayu dan budidadya lele dumbo yang terletak di Desa Lhong Raya, Kecamatan Banda Raya, Kabupaten Aceh Besar. Kegiatan pengabdian masyarakat ini melibatkan dua mitra unit usaha, yaitu usaha pengolahan kayu dan usaha budidaya lele dumbo. Permasalahan mitra pertama terletak pada proses pengeringan kayu. Selama ini pengeringan kayu memakan waktu yang lama minimal enam bulan. Selain itu, serbuk gergaji hasil pengolahan kayu menumpuk dan dapat menimbulkan masalah lingkungan. Sedangkan mitra kedua menemui permasalahan pada proses pengolahan air kolam lele dumbo. Tim pengabdian telah melakukan kegiatan untuk membantu mitra menyelesaikan permasalahannya. Pada mitra pertama, kegiatan mencakup pembuatan unit proses pengeringan kayu. Unit ini terdiri dari dari ruang pengering dan dapur pembakaran. Udara pengering untuk pengeringan kayu dipanaskan dalam dapur pembakaran yang berbahan bakar serbuk gergaji. Pada mitra kedua, kegiatan mencakup pembuatan kolam treatment (pengolahan) air. Unit pengolahan ini terdiri dari dua kolam. Dalam kolam pertama, lumpur yang ada dalam air kolam lele dumbo diendapkan. Pada kolam kedua air dari kolam pertama diberikan asap cair sebagai pembunuh kuman. Pencapaian kegiatan ini pada mitra pertama adalah telah beroperasinya ruang pengering. Pengoperasian unit ini telah mempersingkat waktu yang dibutuhkan untuk pengeringan kayu.

Pengaruh Nozzle Terhadap Aspek Hidrodinamika Kinerja Kolom Gelembung Pancaran Didiek Hari Nugroho; Adisalamun Adisalamun; Izarul Machdar
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 2 (2014): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Kolom gelembung pancaran merupakan salah satu alat perpindahan massa antara fasa gas dan cair. Penelitian ini bermaksud untuk mempelajari pengaruh nozzle terhadap aspek hidrodinamika antara lain: kedalaman penetrasi gelembung (Z), holdup gas (eg), dan laju alir volumetrik gas entrainment (Ql) yang terjadi dalam kolom gelembung pancaran. Variabel proses yang dipelajari antara lain laju alir volumetrik cairan (10-50 L/menit), ukuran diameter nozzle (0,008-0,0127 m), dan tinggi nozzle (0,125-0,25 m). Hasil penelitian memperlihatkan bahwa ukuran diameter nozzle semakin kecil dan laju alir volumetrik cairan yang semakin besar menghasikan laju alir volumetrik gas entrainment, holdup gas, dan kedalaman penetrasi gelembung yang semakin besar.

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