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SYAIFUL BAHRI
Riau University
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Biodiesel Dari Minyak Buta-Buta (Hura Crepitans Linn) Dengan Menggunakan Katalis Ni/Lempung Ekadian Lestari Simatupang; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel is one of the alternative fuels as a substitute for fossil fuels synthesised from the transesterification reaction. The process of making biodiesel which using a homogeneous catalyst is costly for product separation process. Thus use of heterogeneous catalysts such as Ni/Clay catalyst was developed. This study aims to produce biodiesel from Hura crepitans Linn oil to determine best conditions of making biodiesel, determine the physical andchemical properties of biodiesel produced and studied the effect of the amount of Ni metal that has been impregnated on clay. In this process, the amount of oil use is 50 grams, 90 minute reaction time and concentration of catalyst 0.5%-b. Variations in reactants mole ratio oil : methanol 1 : 6, 1 : 9, 1 : 12, varying the amount of Ni metal 0%-b, 1%-b, 2%-b, 3%-b impregnated into the clay. The highest result biodiesel produced from Hura crepitans Linn oilwas 93.70% having mole ratio of oil : methanol 1 : 9 with Ni catalyst (3%). Physical properties obtained at biodiesl result density 884 kg / m3, kinematic viscosity 4.46 mm2/s,acid number 0.49 mg KOH/g sample and flash point is 185°C .Keywords : Biodiesel, Catalyst Ni / clay, Hura crepitans Linn oil
Biodiesel Dari Biji Buta-Buta (Hura Crepitans Linn) Dengan Katalis Ni/Nza Tresia Monika Natalia Sinaga; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Indonesia is one of the oil producing country in the world but is still importing fuel oil (BBM) for meet the fuel needs in various sectors. Therefore, an alternative is needed to meet these needs. Among them is to produce biodiesel from vegetable oil feedstock. One type of vegetable oil that can be used as a raw material is Hura crepitans Linn. This research is aimed to produce biodiesel from Hura crepitans Linn seed oil, to study effect of the metal content in the catalyst of Ni/NZA to biodiesel produced and to determine the best conditions of process of biodiesel and then characteristics of biodiesel produced. The transesterification process was done at a temperature of 60oC, the weight of oil 50 grams, the catalyst 1%-weight of oil, reaction time variation of 1, 1.5 and 2 hour and mole ratio of oil to methanol 1: 6, 1: 9, 1:12 and catalyst NZA of 0% and 2%. The highest biodiesel result gives at experiment of 2% metal content oil to methanol mole ratio of 1: 9, for 1.5 hours i.e. 85.8%. Characterization of physical properties of biodiesel obtained, density of 0.885 gram/ml, 4.29 cSt kinematic viscosity, acid number 0.49 mg KOH / g sample, and the flash point 180oC respectively. Chemical components of biodiesel analysed with Gas Chromatography-Mass Spectroscopy (GC-MS) produce methyl linolelaidate 72,64%, methyl Oleic 19,08%, methyl stearate 2,2%, methyl palmitate 2,11% and methyl octadec-11-enoic 0,66% respectively. Keywords : biodiesel, catalyst Ni/NZA, Hura crepitans Linn, transesterification
Fermentasi Nira Nipah Dengan Variasi Kekentalan Untuk Produksi Bioetanol Menggunakan Teknik Amobilisasi Sel Oci Khairani; Syaiful Bahri; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Ethanol consumption of the world for a variety of uses has increased very significantly in recent years. Therefore it is necessary to alternate sources of raw materials to manufacture bioethanol and bioethanol production can be increased. Nipa sap is one of potential materials to be processed into bioethanol. Availability of nypa palm land in Indonesia and a fairly high sugar content (15-20%) makes nipa sap has the potential to be processed into bioethanol. Through the process of fermentation using immobilized yeast which Sacharomyces cereviceae, glucose is converted into ethanol and carbon dioxide. Immobilization in the field of biotechnology is defined as a method used to put in physics or chemistry of a cell into a buffer in the form of solid materials, matrix, or membrane. Fermentation takes place in batches with a volume of 2 liters of fermentation medium, heavy beads 40 grams, initial pH of 5,0. Viscosity variation with the palm sap evaporation of 15%, 20%, 25% and fermentation time 24, 36, 48, 60, 72, 84 and 96 hours. The stirring speed of 200 rpm and temperature of fermentation at room temperature (25 – 30oC). Ethanol concentration was analyzed using Gas Chromatography. The maximum fermentation process is shown in viscosity with 25% evaporation and fermentation time 84 hours with the initial sugar concentration 221,163 mg/ml. Bioethanol concentration obtained under these conditions was 8,010% (v/v) or 63,223 mg/ml.Keywords : Bioethanol, Fermentation, Immobilized, Nipa Sap, Sacharomyces cereviceae
Sintesis Surfaktan Metil Ester Sulfonat (MES) Dari Palm Oil Metyhl Ester (POME) Dan Natrium Bisulfit (NaHSO3) Dengan Variasi Waktu Sulfonasi Dan Rasio Mol Pome : NaHSO3 Rino Hasanatul Isra; Syaiful Bahri; Wisrayetti Wisrayetti
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Methyl Ester Sulfonate (MES) is an anionic surfactant which is currently being developed. These surfactants can be produced from palm oil methyl ester. MES produced from sulfonation reaction with addition of sulfonation agents. MES can be synthesized from Palm Oil Methyl Ester (POME) and Sodium Bisulfite (NaHSO3) as the sulfonation agent with Calcium Oxide as the catalyst. The aims of this research are to determine the characteristic of the product, and to determine the effects of temperature and mole ratio of the product produced. Sulfonation process was carry out at the time of 5, 7, 9 hours, the mole ratio of 1:1, 1:1,5, 1:2, the stirring speed of 450 rpm, and the temperature of 80 oC. Then purification of the MES surfactant and product analysis is carried out. The best characteristic of the MES is at time 7 hours and mole ratio 1:2 with the density of 0,943 gr/ml, the viscosity of 2,1027 cP, the pH of 3,53, the surface tension of 33,95 dyne/cm, the interfacial tension of 28,85 dyne/cm, the emulsion stability of 89%, and the yield of 83,45%. The surface tension is accordance to the commercial MES.Keyword : Methyl Ester, Methyl Ester Sulfonate, Sulfonation, Surfactant.
Biodiesel Dari Limbah Ikan Baung (Mystus Nemurus) Dengan Katalis Padat H-Zeolit Hadyan Sartoni; Syaiful Bahri; Sunarno Sunarno
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel  is  an  alkyl esters  of  long chain  fatty  acids  derived  from  fatty material  such as animal fat. A research synthesis of biodiesel from waste fish oil of baung into biodiesel with a solid H-zeolite catalyst. In this research review of physical properties (density, viscosity and acid number), analyzing the chemical content of biodiesel, the influence of the molar ratio of methanol  to  fish  oil  baung  the  percentage of  conversion  and  optimal  transesterification catalyst in the transesterification reaction in biodiesel synthesis. 50 grams of fish oil, versus 1:6 methanol  to oil molar, catalyst 10% of the weight of oil  input into  the biodiesel reactor and then  the process of biodiesel synthesis performed on  the operating conditions of 60 ° C temperature  and  stirring  speed of  200  rpm for  200 minutes.  The results  showed  that  the optimum  conversion  catalyst with  10% methanol  1:5 molar ratio  that is  equal to  87.02%. Physical test  results obtained by the density of 890  kg/m3, 5.48  cSt  viscosity, acid number 0.7013 mg-koh/gr sample. Results of analysis of chemical constituents by GC-MS, obtained the dominant component  in the  catalyst  biodiesel with  10% methanol  1:5 molar ratio was 51.03% oleic methyl ester, methyl ester palmitic 18.76%, 9.50% linoleic methyl ester, 4.46% stearic acid methyl ester, methyl ester 2.00% elaidic. Results obtained have characteristics approaching the characteristics of biodiesel Indonesian National Standard (SNI). Kata kunci : fish oil, Biodiesel, H-zeolite catalyst, transesterification
Sintesis Biodiesel Dari Minyak Nyamplung (Calophyllum Inophyllum L.) Menggunakan Katalis Lantanum/Lempung; Pengaruh Variasi Logam Lantanum Dan Rasio Mol Minyak : Metanol Ibnu Oktariza; Syaiful Bahri; Irdoni Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel can be made from Alexandrian laurel oil as one of alternative energy replacement for fossil fuels. This aims of this research were determine the effect of lanthanum metal variation and variation in the ratio of oil : methanol against product results biodiesel, to produce biodiesel from Alexandrian laurel oil as alternative fuels renewable energies that can be renewed and identify the characteristics of the physical and chemical properties of biodiesel produced. Catalyst is made by grinding the clay to a size of -100 +200 mesh, then clay was activated using H2SO4 solution 1.2 M. The variation of lanthanum metal impregnation on clay are 0%-b, 1%-b, 3%-b, 5%-b, then calcined, oxidation and reduction. Production of biodiesel is carried out through two stage: esterification and trans-esterification with variation in the mole ratio of oil : methanol is 1 : 6, 1 : 9 and 1 : 12. Alexandrian laurel oil sample weight 50 gram and 3% by weight of catalyst added to the to trans-esterification reactor. The reaction lasted at 60 0C with agitation speed 400 rpm for 120 minutes. This research resulted in the largest biodiesel yield on the use of La(1%)/clay catalyst with variation mole ratio of oil : methanol 1 : 9 is 86.90%. The characteristics of the catalyst that has a surface area ratio respectively 2.95, 40.22, 27.59, and 18.48 (m2/g). The Biodiesel produced in accordance with established standards (SNI 04-7128-2016).Keywords : biodiesel, Alexandrian laurel oil, lanthanum/clay catalyst
Effect of CTAB Ratio to the Characters of Mesoporous Silica Prepared from Rice Husk Ash in the Pyrolysis of a–cellulose Nia Meisa Wulandari; Lisna Efiyanti; Wega Trisunaryanti; Haryo Satriya Oktaviano; Syaiful Bahri; Yatim Lailun Ni’mah; Savitri Larasati
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 3 Year 2021 (September 2021)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.3.10828.632-640

Abstract

Due to its wide application, synthesizing silica through a cost-effective process becomes an attractive subject to be studied today. In this work, mesoporous silica (MS) was prepared from the highly available agricultural waste, rice husk ash (RHA), to be used as catalyst in the pyrolysis of a-cellulose. Silica was extracted from RHA through a reflux process in a strong base solution and arranged into a mesoporous structure by using cetyltrimethylammonium bromide (CTAB). To find a condition that produces a mesoporous support with the highest surface area and catalytic activity, the mole ratios of CTAB:SiO2 used during the preparation of MS were varied; 0.05:1; 0.1:1; 0.2:1. Afterwards, all prepared MS were characterized using Fourier Transform Infra Red (FTIR), Scanning Electron Microscope (SEM), and Surface Area Analyzer (SAA). Through he surface area analysis, it was found that MS materials possessed surface area, pore diameter, and pore volume that range from 600–970 m2.g−1, 3.5–4.7 nm, 0.7–1 cm3.g−1, respectively. The highest surface area, with over 970.80 m2.g−1, was obtained in MS support prepared by using CTAB:SiO2 mole ratio of 0.1:1. SEM images showed a coral reef-like surface morphology for all MS. In the pyrolysis of a-cellulose evaluated by Py-GCMS, aside from producing biofuel compounds, the use of MS was able to generate two-fold furan production, which is considered as a valuable compound in many chemical syntheses. This result highlights the potential of MS prepared from RHA to be used as a catalysis support material that is more economical for biofuel and other chemical production. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
PRESTASI KOAGULAN CAIR BERBASIS LEMPUNG ALAM CENGAR DALAM PENGOLAHAN AIR GAMBUT Muhdarina Muhdarina; Nurhayati Nurhayati; Syaiful Bahri; T. Ariful Amri; Amilia Linggawati; Yulianti Yulianti
Akta Kimia Indonesia Vol 3, No 1 (2018)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5436.113 KB) | DOI: 10.12962/j25493736.v3i1.3094

Abstract

Lempung alam Cengar telah digunakan sebagai bahan baku penyediaan koagulan cair untuk pengolahan air gambut. Koagulan cair disediakan melalui tahap kalsinasi dan pelindian dengan asam sulfat. Lempung alam dikalsinasi pada 500oC selama 3 jam, sedangkan kondisi pelindian dipilih dengan kadar 0,2; 0,4 dan 0,6 mol asam sulfat, temperatur 30, 60 dan 100oC dan waktu pelindian 60, 120 dan 180 menit. Kandungan kation Al3+ dan Fe3+ di dalam koagulan ditentukan dengan metoda spektroskopi serapan atom. Kadar kation Al3+ maksimum 29,368 mg/L dijumpai pada kondisi pelindian 100oC, 3 jam dan konsentrasi 0,6 mol, sedangkan kation Fe3+ diperoleh sebanyak 34,993 mg/L dengan pelindian 0,6 mol asam, 30oC dan 1 jam. Koagulan cair berbasis lempung Cengar mengandung kation Al3+ dan Fe3+ yang jumlahnya sangat dipengaruhi oleh kondisi pelindian. Dipilih tiga jenis koagulan cair dengan kadar Al > Fe, Al ≈ Fe dan Al < Fe untuk mengkoagulasi air gambut. Parameter air gambut yang diamati di antaranya warna, kekeruhan, Chemical Oxygen Demand (COD), Total Dissolved Solid (TDS) dan Total Suspended Solid (TSS). Aplikasi koagulasi air gambut menggunakan koagulan cair sintesis menunjukkan prestasi yang memuaskan pada nisbah koagulan cair-air gambut 1:10 (v/v). Koagulan cair tipe Al < Fe menunjukkan kinerja yang paling baik di antara ketiga koagulan uji. Koagulan ini mampu menghilangkan warna air gambut sebanyak 85%, TDS 89%, COD dan kekeruhan masing-masing adalah 67%
Pemanfaatan limbah kelapa sawit untuk budidaya jamur merang dalam upaya perbaikan ekonomi desa: Pengabdian kepada masyarakat di Desa Kampung Baru, Kabupaten Pelalawan Djaimi Bakce; Almasdi Syahza; Syaiful Bahri; Mitri Irianti; RM Riadi; Brilliant Asmit
Unri Conference Series: Community Engagement Vol 1 (2019): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.1.235-242

Abstract

There is oil palm waste in the form of Oil Palm Empty Bunches (TKKS) in the Village of Kampung Baru, Subdistrict of Ukui, Pelalawan Regency. TKKS can be used as a medium for straw mushroom cultivation. To utilize this potential, the team provided the training and assistance in developing mushrooms product and its institutional strengthening to the community groups and local economical institutions. The team implement the activities by conducting community assistance to 20 village people. Other than that, the team gave the marketing knowledge of the mushroom product, so that it could increase the community income and economy. The activities located in the biogas plant development area. The result is participants have been able to cultivate mushroom from the process of setting the medium to harvesting. This activity has not reached the stage of harvest calculation and marketing yet. But the participants have got a mushroom products estimation that in the 144 m2 harvested area produces 34.56 kg of mushroom is per day.
Hubungan Pengetahuan, Sikap dan Intensi Perilaku Pengelolaan Sampah Berkelanjutan Pada Siswa Sekolah Dasar di Kota Padang Aria Gusti; B Isyandi; Syaiful Bahri; Dedi Afandi
Dinamika Lingkungan Indonesia Vol 2, No 2 (2015)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.522 KB) | DOI: 10.31258/dli.2.2.p.100-107

Abstract

This studi examined the behavioral intention of sustainable waste management inelementary school student using the framework of Theory of Planned Behavior. The objectiveof this study was to know the relationship of knowledge, attitude, and the behavioral intentionof sustainable waste management. Population and sample in this study were elementaryschool students in the Padang City, West Sumatra. The data collected for this study wereanalyzed using Structural Equation Modeling (SEM). The results of this study stated that theknowledge about sustainable waste management has a significant relationship with attitudestowards sustainable waste management. Knowledge and attitudes towards sustainable wastemanagement had a significant association with the behavioral intention of sustainable wastemanagement. These findings have important implications for the school as well as for policymakers. 
Co-Authors ', B. Isyandi ' -, Sunarno Abd. Mukti, Abd. Abd. Rasyid Syamsuri Abid, Hussein Rasool Abu Bakar Adam Fadillah Ade Evi Fatimah Adelina Samosir Adita Sukma Ramadhania Afina, Zahira Afria Anggreini Afrielyanda H Agung Abadi Kiswandono Agus Faisal Asyha Ahmad Fadli Ahmad Fuad Ahmadi, Peni Ainol Yaqin, Ainol Ajmal, Muhammad Alhajj, Irfan Qowwiyul Aziz Alhamid, Ipa Fatma Almasdi Syahza Altarawneh, Mohammednoor Aman aman Ambarwati, Yuli Amilia Linggawati Amini Amini Amiruddin Amiruddin Amun Amri Andari , AA Andi Mulya Adha Andi Setiawan ANDI WIJAYA Anggreini, Winsa Septi Anisa, Lia Rizqi Nur Anna Apryana Annisa, Devi Nur Annisa, Eka Dini Antania, Livia Anwar Sumianto Aprilia, Tika Dwi Arai, Masayoshi Arbhy Indera Ikhwansyah Ari Aditia Sukma Ari Sandhyavitri Aria Gusti Ariasih, Rr. Arum Aries Saifudin Arinda, Shafira Aprilla Aritonang, Muhibbah Asad, Muhammad Mujtaba Asman, Pendi Aspita Laila Aulia Rahman Aura Dhayang Fiarizky Ayumi, Eksa Azhar, Muhammad Rizwan Aziz, Melly Pusvita Baharudin Baharudin Baryanto Berghuis, Nila Tanyela Bernard Isyandi Brilliant Asmit Bunga Fitriani Gumadita Bustamam, Nurbaity Chairul Chairul Chairul Chairul Chartady, Rachmad Damanik, Khairunnisa Dani Ali, Nurhalim Daud, Attaillah Dedi Afandi Dedy Hidayatullah Alarifin, Dedy Hidayatullah Desak Made Yoniartini Desi Heltina Dhani Nur Miftahudin Dian Agustin Djaimi Bakce Dzaljad, Rifma Ghulam Edwidya Ocktaviani Armay Edy Saputra Edy Saputra Effendi, Mardian Effendy, Sjahril Ekadian Lestari Simatupang Eko Prihandono Ella Awaltanova Elvi Yenie, Elvi Elvianto Dwi Daryono Emi Tipuk Lestari *, Emi Tipuk Lestari Erlisa Yanuari Putri Ermiyati Erniwati Erniwati Fabryza, Dhina Fadillah, Ryan Faizal, Doddy Fajar Restuhadi Fathiyah Zulfahni Febrian, Ramadhoni Feby Pratama Nugraha Feni Nopriza Figna, Harry Pratama Fikri, Muhammad Fathan Fiqna, Harry Pratama Firman syah Firmansyah, Muhammad Yusuf Fistiyanti, Davinta Fitra Marsela Fitriani Fitriani Fitriani, Nurdiana Friska Octavia Rosa, Friska Octavia Ganjar Andhulangi Genardus Oktavri Sijabat Habibie, R. Fikry Nanda Hade Karimata Hadyan Sartoni Hafidz Nifa, Muhamad Hajar, Muhammad Nurul Hambali, Ach Hamdali, Hamdali Hammad, Hammad Harahap, Ahmad Indra Harahap, Dosma Gabena Hardiansyah Hardiyanto, Candra Hari Setiono, Hari Hartono, Arif Haryo Satriya Oktaviano HASANAH, IDA FADIRATUL Hasnul Bustaman Hasrudy Tanjung, Hasrudy Hedri Yanti Hery Widijanto Hesty Rodlotu Yula Hetti Zuliani, Hetti Husna, Zakiyatul Hutahaean, Agung Mangalambok I KADEK ADHI DWIPAYANA . I Nengah Suandi I Wayan Suastra Ibnu Oktariza Ida Bagus Putu Arnyana Idi Warsah Idral Amri Ilim, Ilim Ilmi, Assyifa Aini Ilmiddaviq, M. Bahril Inget Yester Yunanda Irawan, Nopi Irdoni Irdoni Irlani, Intan Irnaliah, Irnaliah Irwan Fathurrochman, Irwan Irwan Irwan Isma Swadjaja Isnaini, Nurdiana Fitri Iswadi Idris James Becker Jefriadi Jefriadi Jiang, Zhong Tao John Hendri Julian, Risma Juliasih, Ni Luh G. R. Juliasih, Ni Luh Gede Ratna Jumira Warlizasusi Karim, Ahmad Fauzun Karina Octaria Putri Keisya, Nurul Khairat Khairat Khairat, Khairat Khairul, Anapuja Khairunnisa, Zhafira Amriyatti Kharismatunnisaa, Fiona Khoiriyah, Alfiatul Kholil, Moh. Kinanti Kinanti, Kinanti Kiswandono, Agung A. Laila Kusmiati Lailatul Qomariyah, Lailatul Lalu Erwan Husnan, Lalu Erwan Larasaty, Anisya Lestari, Miranti Tri Lianingsih, Firli Dwi Lisna Efiyanti Lubis, Afandi Husin Amin Syahrul Lutfiah, Rosyidatul M Arfi Adharyandy Firman M. Nasor, M. Makkah Ramadhan Putra Rizal Margrety, Betty Margunaji, Agus Maya Sista, Eliya Meliagustin, Adilla Mhd. Reza Pahlepi Miftahudin, Dhani Nur Miran, Hussein A. Miswaty, Miswaty Mita Rilyanti Mitri Irianti Mizna Sabilla Mohammad Muhibbin Muhammad Amin Muhammad Azlin , Dico Muhammad Disro Muhammad Imam Nugraha Muhammad Isa Alamsyahbana Muhammad Ismet muhammad rizky, muhammad Muhammad Sulthon Siregar Muhammad Zulfikar Adha Muhdarina Muhdarina . Muhdarina Muhdarina Muhtadi Muhtadi MUIS FAUZI RAMBE Mukti, Lailatul Latifa Mulyadi Mulyadi Mulyono Mulyono MURNI YANTO Musbar, Al Swendo Nabila, Abelia Najmuddin MA, Najmuddin nasir, muh Nasution, Jamilah Aini Nia Meisa Wulandari Nifa Abdillah, Muhamad Hafidz Norlena Notiragayu, Notiragayu Nova Dwi Safitir Nur Ainiyah Nurbaity, Nurbaity Nurfaradina, Zaskia Ayu Nurfatihayati Nurhaeni Nurhaeni Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhayati Nurhayati Nurhayati, Nurhayati Nurkholimah, Siti Nurlis Nurlis Nurmarita, Nurmarita Oci Khairani Oktarina, Rasmi Zakiah Oktaviyana, Amiliya Pambudi, Naufal Prawiranegara, Barata Aditya Prayoga, Mohammad Dicky Puji Prasetyo, Angga Puji, Lela Kania Rahsa Purba, Doni El Rezen Purwadi, Ofik Taupik Putri Azizah Putri, Karina Octaria Putri, Nazla Syafrina Qudus, Hardoko Insan R. Supriyanto R.Y, Silvia Rachma, N. Rahmadani, Natasya Suci Rahmah, Yulia Rahman, M. Mahbubur Rahman, Waqi’ Rahmansyah Rahmansyah Rahmiyati, Evi Rais , Wendi Raja Valti Mhd Siregar Rajib Azri Ramin, Moh. Ranum Anggun Sari, Ranum Anggun Ratna Dian Armalita Raudhatul Jannah Raudloh, St. Regina Gita Riani Dio Renia Navivin Revita Sari Riady, Yasir Riansyah, Muhammad Ridho Fahrozi Ridwan Siskandar Rifa’I , Ahmad Rinawati Rinawati Rinawati Rinawati Rinny Jelita Rino Hasanatul Isra Risca Dwiaryanti, Risca Rizal, Makkah Ramadhan Putra Rizka Aulia Hardi, Rizka Aulia RM Riadi Rofiqi, Ahmad Romie Jhonnerie Rosalina, Fira Rosita, Dara Ryan Dhika Priyatna S Siswanto Sabrina, R Salim Aktar Salim, Sulaiman Samawi, Oscar Raihan Saputra, Adika Saputra, Yourdan SAPUTRI, KENI APRILIA Saputri, Rafhita Ika Sari Rahma Yanti Sari, Linda Nevia Sari, Silvya Reza Novita Sarma, Deki Savitri Larasati Setiadi, Fydel Setianingsih, Ayu Setiawan, Fendi Shabira, Qonita Shahib, Abdul Sheiscatamya, Vezhia Shubhi, Muhammad Silvi Puteri Anggraini Silvia R.Y Siti Nurbaya Siti Nurul Khotimah siti rahmah Sofi Dwi Octavia Ningtiyas Sri Waluyo Subangkit Julio Jaya Sucipto Sufi, Sutan Badarudin Sugeng, Santoso Sugiyanto - Sukiman Hernanda Sukitman, Tri Sulistyawati Sulistyawati Sulton Sholehuddin, Sulton Sunarno Sunarno - Sunarno Sunarno Sunarno Sunarno Suratman Suratman Surya Romadani Sutopo Hadi Sutrisno, Sutrisno Suwanto Suwanto Syaddad, VirzqiZulviqar Syafrial Nur Syamsu Herman Syamsuri T. Ariful Amri Tahir, Tahir Tanjung, Muhammad Hafiz Taufik Kharnofa Tirsya, Riana Tresia Monika Natalia Sinaga Tri Okta Ratnaningtyas Utama, Panca Setia WAWAN ABDULLAH SETIAWAN, WAWAN ABDULLAH Wega Trisunaryanti Widiarto, Sonny Widiarto, Sony Wisrayetti Wisrayetti Wisrayetti, Wisrayetti Wulandari, Ika Rizki Wulandari, Revika Yanto, Murni Yatim Lailun Ni’mah Yelmida Azis Yeni Puji Astuti Yeni Rizki Yenni Octavia Yopalim Zanstra Yuli Ambarwati Yulianti Yulianti Yuliati Eka Putri Yuliatmi Yuliatmi Yumna, Nada Ibtihal Yusnimar Sahan Yusuf Yusuf Zainuddin, Zainuddin Zetria Pujiana Zipora Sembiring Zuchra Helwani Zuchra Helwani, Zuchra