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Isolasi Dan Karakterisasi Bentonit Alam Menjadi Nanopartikel Monmorillonit Zaimahwati, Zaimahwati; Yuniati, Yuniati; Jalal, Ramzi; Zhafiri, Syahman; Yetri, Yuli
Jurnal Katalisator Vol 3, No 1 (2018): KATALISATOR
Publisher : LLDIKTI Wilayah X

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (359.942 KB) | DOI: 10.22216/jk.v3i1.2729

Abstract

Pada penelitian ini telah dilakukan isolasi dan karakterisasi bentonit alam menjadi nanopartikel montmorillonit. Bentonit alam yang digunakan diambil dari desa Blangdalam, Kecamatan Nisam Kabupaten Aceh Utara.  Proses isolasi meliputi proses pelarutan dengan aquades, ultrasonic dan proses sedimentasi. Untuk mengetahui karakterisasi montmorillonit dilakukan uji FT-IR, X-RD dan uji morfologi permukaan dengan Scanning Electron Microscopy (SEM). Partikel size analyzer untuk menganalisis dan menentukan ukuran nanopartikel dari isolasi bentonit alam. Dari hasil penelitian didapat ukuran nanopartikel montmorillonit hasil isolasi dari bentonit alam diperoleh berdiameter rata-rata 82,15 nm.In this research we have isolated and characterized natural bentonite into montmorillonite nanoparticles. Natural bentonite used was taken from Blangdalam village, Nisam sub-district, North Aceh district. The isolation process includes dissolving process with aquades, ultrasonic and sedimentation processes.  The characterization of montmorillonite, FT-IR, X-RD and surface morphology test by Scanning Electron Microscopy (SEM). Particle size analyzer to analyze and determine the size of nanoparticles from natural bentonite insulation. From the research results obtained the size of montmorillonite nanoparticles isolated from natural bentonite obtained an average diameter of 82.15 nm.
EFFISIENSI INHIBISI KOROSI BAJA LUNAK DALAM MEDIA ASAM DENGAN INHIBITOR EKSTRAK KULIT BUAH KAKAO (THEOBROMA CACAO) Yetri, Yuli; Emriadi, E; Jamarun, Novesar; Gunawarman, G
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol 7, No 2 (2016)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2016.v7.no2.p67-80

Abstract

Efek inhibisi korosi dan sifat-sifat adsorpsi oleh ekstrak kulit buah kakao (Theobroma cacao)  pada baja lunak (mild steel) dalam larutan asam 1,5M HCl telah dipelajari menggunakan teknik konvensional metode berat hilang pada variasi waktu, konsentrasi dan suhu. Parameter-parameter termodinamika seperti energi aktivasi, entalpi, entropi dan perubahan energi bebas dihitung. Polarisasi elektrokimia telah dievaluasi untuk memastikan jenis inhibitor. Spektra infrared dan GCMS dilakukan untuk mengetahui senyawa ekstrak yang berperan  dalam proses inhibisi. Morfologi permukaan sampel diamati dengan menggunakan scanning electro microscopy dengan  energy dispersive X-ray spectroscopy (SEM-EDX) . Keseluruhan hasil penelitian menunjukkan bahwa ekstrak polar kulit buah coklat  dapat digunakan sebagai inhibitor korosi yang efektif pada baja karbon di lingkungan 1,5M HCl dengan pencapaian efisiensi  inhibisi   terkorosi sebesar 96.26% (weight loss) dan 92.08% (Tafel) pada konsentrasi ekstrak 2,5% selama768 jam. Mekanisme inhibisi adalah  adsorpsi chemiadsorpsi berdasar tingginya nilai entalpi dan energi bebas.Effisiensi Inhibisi diketahui meningkat dengan peningkatan konsentrasi dari ekstrak serta menurun dengan peningkatan suhu. Kurva polarisasi menunjukkan inhibitor ini berperilaku sebagai inhibitor campuran dengan dominan pada inhibisi katodik. Ekstrak diadsorpsi oleh permukaan mild steel  mengikuti model adsorpsi isotherm Langmuir. Kondisi permukaan mild steel menunjukan terjadinya adsorpsi di permukaan membentuk lapisan tipis di permukaan logam. Penambahan ekstrak kulit buah kakao ke dalam larutan HCl sangat efektif untuk mengurangi serangan korosi di permukaan mild steel.  Kata kunci: Korosi, Inhibitor, Theobroma cacao, Mild steel, Potensiodinamik Corrosion Inhibition Efficiency Mild Steel in Acid Media with Inhibitor Peels Extract of Cacao (Theobroma cacao)ABSTRACT Inhibition and adsorption properties of Theobroma cacao peel polar extract addition on corrosion inhibition efficiency of 0.3%C mild steel in hydrochloric acid solution for various exposuring time, extract concentration and working temperature were investigated using weight loss test method. Electrochemical polarization test was also conducted to confirm the effectiveness of inhibition. Infrared spectrum of the samples was also evaluated to reveal compounds of the extract which controll the inhibition process. Morphology and local composition of sample surfaces were respectively examined by scanning electron microscope  (SEM) and energy dispersive X-ray spectroscopy (EDX). Thermodynamic parameters such as energy activation, enthalpy, entropy and change in the free energy were then determined using related data. The results show that the inhibition efficiency increases significantly up to 96.3% (by weight loss method) and 92.08% (Tafel) with the increase of TCPE content. The optimum efficiency is obtained at extract concentration of 2,5% for exposuring time of 768h. However, the efficiency decreases slightly with increasing working temperature in the range of 303K-323K. The polarization curve shows the inhibitor behaves as a mixed inhibitor with the dominant cathodic inhibition. The adsorption model is found to obey Langmuir adsorption isotherm. Surface condition is  improved due to the adsorption and then formation of thin layer film protection in the surface of the steel. The addition of extract of cacao peels into HCl is effective to minimize corrosion attack on the mild steel. Key words: Corrosion, inhibitor, Theobroma cacao peel, Mild steel, Potensiodinamic
EFFISIENSI INHIBISI KOROSI BAJA LUNAK DALAM MEDIA ASAM DENGAN INHIBITOR EKSTRAK KULIT BUAH KAKAO (THEOBROMA CACAO) Yetri, Yuli; Emriadi, E; Jamarun, Novesar; Gunawarman, G
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol 7, No 2 (2016)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2016.v7.no2.p67-80

Abstract

Efek inhibisi korosi dan sifat-sifat adsorpsi oleh ekstrak kulit buah kakao (Theobroma cacao)  pada baja lunak (mild steel) dalam larutan asam 1,5M HCl telah dipelajari menggunakan teknik konvensional metode berat hilang pada variasi waktu, konsentrasi dan suhu. Parameter-parameter termodinamika seperti energi aktivasi, entalpi, entropi dan perubahan energi bebas dihitung. Polarisasi elektrokimia telah dievaluasi untuk memastikan jenis inhibitor. Spektra infrared dan GCMS dilakukan untuk mengetahui senyawa ekstrak yang berperan  dalam proses inhibisi. Morfologi permukaan sampel diamati dengan menggunakan scanning electro microscopy dengan  energy dispersive X-ray spectroscopy (SEM-EDX) . Keseluruhan hasil penelitian menunjukkan bahwa ekstrak polar kulit buah coklat  dapat digunakan sebagai inhibitor korosi yang efektif pada baja karbon di lingkungan 1,5M HCl dengan pencapaian efisiensi  inhibisi   terkorosi sebesar 96.26% (weight loss) dan 92.08% (Tafel) pada konsentrasi ekstrak 2,5% selama768 jam. Mekanisme inhibisi adalah  adsorpsi chemiadsorpsi berdasar tingginya nilai entalpi dan energi bebas.Effisiensi Inhibisi diketahui meningkat dengan peningkatan konsentrasi dari ekstrak serta menurun dengan peningkatan suhu. Kurva polarisasi menunjukkan inhibitor ini berperilaku sebagai inhibitor campuran dengan dominan pada inhibisi katodik. Ekstrak diadsorpsi oleh permukaan mild steel  mengikuti model adsorpsi isotherm Langmuir. Kondisi permukaan mild steel menunjukan terjadinya adsorpsi di permukaan membentuk lapisan tipis di permukaan logam. Penambahan ekstrak kulit buah kakao ke dalam larutan HCl sangat efektif untuk mengurangi serangan korosi di permukaan mild steel.  Kata kunci: Korosi, Inhibitor, Theobroma cacao, Mild steel, Potensiodinamik Corrosion Inhibition Efficiency Mild Steel in Acid Media with Inhibitor Peels Extract of Cacao (Theobroma cacao)ABSTRACT Inhibition and adsorption properties of Theobroma cacao peel polar extract addition on corrosion inhibition efficiency of 0.3%C mild steel in hydrochloric acid solution for various exposuring time, extract concentration and working temperature were investigated using weight loss test method. Electrochemical polarization test was also conducted to confirm the effectiveness of inhibition. Infrared spectrum of the samples was also evaluated to reveal compounds of the extract which controll the inhibition process. Morphology and local composition of sample surfaces were respectively examined by scanning electron microscope  (SEM) and energy dispersive X-ray spectroscopy (EDX). Thermodynamic parameters such as energy activation, enthalpy, entropy and change in the free energy were then determined using related data. The results show that the inhibition efficiency increases significantly up to 96.3% (by weight loss method) and 92.08% (Tafel) with the increase of TCPE content. The optimum efficiency is obtained at extract concentration of 2,5% for exposuring time of 768h. However, the efficiency decreases slightly with increasing working temperature in the range of 303K-323K. The polarization curve shows the inhibitor behaves as a mixed inhibitor with the dominant cathodic inhibition. The adsorption model is found to obey Langmuir adsorption isotherm. Surface condition is  improved due to the adsorption and then formation of thin layer film protection in the surface of the steel. The addition of extract of cacao peels into HCl is effective to minimize corrosion attack on the mild steel. Key words: Corrosion, inhibitor, Theobroma cacao peel, Mild steel, Potensiodinamic
Efisiensi Inhibisi Korosi Baja Lunak dalam Media Asam dengan Inhibitor Ekstrak Kulit Buah Kakao (Theobroma cacao) Yetri, Yuli; Emriadi, E; Jamarun, Novesar; Gunawarman, G
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 7 No. 2 (2016)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2016.v7.no2.p67-80

Abstract

Inhibition and adsorption properties of Theobroma cacao peel polar extract addition on corrosion inhibition efficiency of 0.3%C mild steel in hydrochloric acid solution for various exposuring time, extract concentration and working temperature were investigated using weight loss test method. Electrochemical polarization test was also conducted to confirm the effectiveness of inhibition. Infrared spectrum of the samples was also evaluated to reveal compounds of the extract which controll the inhibition process. Morphology and local composition of sample surfaces were respectively examined by scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX). Thermodynamic parameters such as energy activation, enthalpy, entropy and change in the free energy were then determined using related data. The results show that the inhibition efficiency increases significantly up to 96.3% (by weight loss method) and 92.08% (Tafel) with the increase of TCPE content. The optimum efficiency is obtained at extract concentration of 2,5% for exposuring time of 768h. However, the efficiency decreases slightly with increasing working temperature in the range of 303K-323K. The polarization curve shows the inhibitor behaves as a mixed inhibitor with the dominant cathodic inhibition. The adsorption model is found to obey Langmuir adsorption isotherm. Surface condition is improved due to the adsorption and then formation of thin layer film protection in the surface of the steel. The addition of extract of cacao peels into HCl is effective to minimize corrosion attack on the mild steel.
Potential Activated Carbon of Theobroma cacao L. Shell for Pool Water Purification in Politeknik Negeri Padang Yetri, Yuli
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 12 No. 1 (2021)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2021.v12.no1.p32-38

Abstract

Research has been carried out to improve the quality of the yellow pool water. The water is used as a source of clean water for the academics of the Politeknik Negeri Padang, so it needs to be improved in accordance with the quality standards of clean water, and is suitable for daily use. The adsorption process was carried out using activated carbon of Theobroma cacao L. shells which was carbonated at 400oC for 1 hour and activated with H3PO4. Characterization of functional groups using Frontier Transform Infra Red (FTIR), and morphology of surface using Scanning Electron Microscopy (SEM). The quality of clean water standard analyzed is turbidity, Total Dissolved Solids (TDS), color, Total Suspended Solids (TSS), and Fe content. Functional group analysis exhibits that the activated carbon produced has a pattern of absorption with O-H, C-H, and C-O bond types. At the optimum condition of the activation process, a good adsorbent is absorbed in pool water purification at a flow rate of 5 mL/min with a mass of 2 grams. The analysis showed an efficiency decrease in turbidity value of 67%, Total Dissolved Solids (TDS) 71%, Color 97%, Total Suspended Solids (TSS) 86%, and Fe content 38%. Surface morphology of activated carbon showed the presence of pore cavities, and after the filtration process the cavities became saturated. This shows that there has been an absorption by activated carbon, so that the water becomes clear. Activated carbon of Theobroma cacao L.shell is very effective in the process of purifying pool water into clean water and fulfilling clean water standards, so it is suitable for are used.
Troubleshooting Intake Exhaust System Pada Engine C6.4 Excavator Caterpillar Saputra, Ilham; Jufri , Agustion; Bukhari, Bukhari; Nofriadi, Nofriadi; Yetri, Yuli
POROS TEKNIK Vol. 13 No. 2 (2021)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/porosteknik.v13i2.1097

Abstract

Terjadinya masalah engine black smoke pada engine C6.4 Caterpillar, ditandai dengan keluarnya asap keabu-abuan cenderung kehitaman, dan ketika diberi tenaga maksimal engine seakan-akan cenderung mati (low power). Untuk mengetahui penyebab kerusakan dan menentukan upaya pencegahan agar kerusakan tidak terulang kembali, telah dilakukan troubleshooting terhadap masalah yang terjadi. Troubleshooting dilakukan dengan 4 tahap yaitu tahap pendefinisian masalah, tahap evaluasi masalah, tahap perbaikan, dan tahap analisa. Dari hasil troubleshooting yang telah dilakukan, ditemukanlah akar masalah penyebab engine black smoke dari engine C6.4 Caterpillar yaitu rusaknya aftercooler yang mengalami kebocoran yang mengakibatkan udara panas dari turbocharger tidak bisa didinginkan dan udara tidak menjadi padat, sehingga udara yang masuk ke ruang bakar tidak mencukupi sesuai kebutuhan engine. Adapun penyebab terjadinya kerusakan pada aftercooler karena, adanya tekanan dari sebuah benda seperti kayu atau lain sebagainya, yang mengakibatkan sirip-sirip pada aftercooler bengkok dan bocor. Mengenai masalah ini, upaya penanggulangan yang dilakukan adalah penggantian pada aftercooler. Setelah penggantian, dilakukan pengetesan dan engine beroperasi dengan normal.
Pengaruh Waktu dan Temperatur Larutan Terhadap Ketebalan dan Kekerasan Permukaan Lapisan Hasil Elektroplating Kuningan pada Baja Yuli Yetri; Ultra Marsedi; Jon Affi; Desmarita Leni
Manutech : Jurnal Teknologi Manufaktur Vol. 12 No. 01 (2020): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.951 KB) | DOI: 10.33504/manutech.v12i01.131

Abstract

Brass electroplating process has been analyzed on the steel surface for the thickness and hardness of the coating. The electroplating process was carried out on low carbon steel ST 37 by varying the time (10 minutes, 15 minutes, 20 minutes and 25 minutes), and the temperature of the solution (40 °C, 45 °C, 50 °C, and 55 °C). To determine the quality of the coating results were observed using a stereo microscope and Vicker hard test equipment to measure the thickness and hardness. The test results show that the increase in time and temperature is proportional to the thickness and hardness value obtained. The lowest average thickness and hardness value was 11,323 ?m 182.4 VHN at 40 °C with 10 minutes coloring time. While the highest average thickness and hardness values were 29.333 ?m and 218.8 VHN were obtained at a temperature of 55 °C for 25 minutes. The observations showed a significant increase in thickness and hardness values after 20 minutes. This shows that the higher the solution temperature, it will reduce the absorption of hydrogen into the sludge resulting in an increase in the surface hardness of the resulting layers due to more sediment attached to the cathode. The increase in time and temperature of the solution given is directly proportional to the thickness and hardness value produced on the metal surface.
Modifikasi Kapasitas Belt Conveyor dari Kapasitas 400 Ton/Jam Menjadi 600 Ton/jam di Indarung IV PT. Semen Padang Fanani; Rahmadhani; Mulyadi; Aidil Zamri; Yuli Yetri
Manutech : Jurnal Teknologi Manufaktur Vol. 12 No. 02 (2020): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.574 KB) | DOI: 10.33504/manutech.v12i2.138

Abstract

Belt conveyor is a means of transportation used at Indarung IV PT. Semen Padang. Belt conveyor functions to move material from one place to another both in short distances and long distances with a certain slope. The capacity of limestone conveyor belt owned by Indarung IV is 400 tons/hour. However, this capacity is no longer able to meet the needs of limestone as a raw material for making cement in Indarung IV which currently reaches a capacity of 600 tons/hour. For this reason, an analysis of the 400 ton/hour capacity conveyor belt is still capable of transporting the limestone material with a capacity of 600 tons/hour, using the CEMA (Conveyor Equipment Manufacturer Association) standard. From the calculation results obtained belt conveyor parameters for a capacity of 600 tons/hour such as maximum belt capacity, belt speed, as well as the motor power and gearbox power needed for a capacity of 600 tons/hour. Where, some of these parameters exceed the value of the parameters of the conveyor belt capacity of 400 tons/hour, so the 400 tons/hour conveyor belt is unable to carry a load of 600 tons/hour. Replacement of some components is needed so that a load of 600 tons/hour can be transported.
Analisis Troubleshooting pada Engine G3408 Generator Set Caterpillar Hersalniar; Firdaus; Oong Hanwar; Hendri Candra Mayana; Yuli Yetri
Manutech : Jurnal Teknologi Manufaktur Vol. 12 No. 02 (2020): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.114 KB) | DOI: 10.33504/manutech.v12i2.139

Abstract

A research has been conducted about Troubleshooting that occurs in the Caterpillar Engine G3408 generator Set which aims to analyze the causes of the hydraulic lock and determine how to solve the problems that occur in the Caterpillar G3408 Engine Generator Set. The research method is to perform detection, diagnostic, and repair on the engine by doing a visual check, looking for the root of the problem and doing the test. The results are engine has a hydraulic lock caused by a damaged one of the components of the Air Intake and Exhaust System. The after cooler is also damaged due to its long service life, causing the coolant to enter the combustion chamber. From the overall analysis it is concluded that the cause of engine failure is one of the components is damaged due to a long service life and to overcome this is doing repair and replacement of components on the After cooler with new components and do the periodic maintenance on the Caterpillar G3408 Engine Generator Set.
Analisa Kekerasan dan Ketebalan Permukaan Lapisan Hasil Elektroplating Kuningan Pada Baja Rakiman Rakiman; Hanif Hanif; Menhendry Menhendry; Maimuzar Maimuzar; Yuli Yetri
JST (Jurnal Sains Terapan) Vol 7, No 1 (2021): JST (Jurnal Sains Terapan)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v7i1.1114

Abstract

Korosi merupakan proses spontan yang terjadi pada logam karena pengaruh lingkungan. Terbentuknya korosi dipermukaan logam tidak bisa dicegah, tetapi bisa diperlambat proses terjadinya. Salah satu usaha untuk memperlambat laju korosi adalah dengan melakukan pelapisan (elektroplating) pada permukaan logam tersebut. Telah dilakukan proses elektroplating kuningan pada baja karbon rendah ST-37  dengan variasi waktu 10 menit, 15 menit, 20 menit dan 25 menit serta variasi suhu larutan elektrolit 40°C, 45°C, 50°C, dan 55°C. Karakteristisasi lapisan dilakukan dengan menggunakan mikroskop stereo dan kekerasan dengan uji keras Vicker. Hasil pengujian menunjukan bahwa peningkatan waktu dan suhu berbanding lurus  dengan ketebalan dan kekerasan yang dihasilkan. Nilai ketebalan dan kekerasan terendah ditemukan pada 40°C dengan waktu 10 menit 11,323 μm 182,4 VHN, dan nilai rata-rata ketebalan dan kekerasan tertinggi diperoleh pada 25 menit dengan suhu 55°C yaitu 29,333 μm dan 218,8 VHN.  Dari hasil yang diperoleh dapat disimpulkan bahwa peningkatan waktu dan suhu yang diberikan berbanding lurus dengan ketebalan dan kekerasan. Nilai ketebalan dan kekerasan tertinggi diperoleh pada 25 menit dengan suhu larutan 55°C.
Co-Authors Adriansyah Adriansyah Adriansyah Adriansyah Agustion Jufri Ahmad Amdi Zamrud Kurnia Aidil Zamri Alfian Alfian Alifur Rahman Anike Malfinora Anissa Vivia Fidela Annisa Khairiyah ARIF RAHMAN Asmed Asmed Ayu Pitri Yeni Bukhari Bukhari Bukhari Bukhari Bukhari S Bukhari S Candra Mayana, Hendri Daddy Budiman Dahyunir Dahlan Dandi Ilham Darman Dapersal Dinar Desi Mita Sari Desmarita Leni Elvis Adril Emriadi - Eri Aidio Murti Fahri Reza Fanani Fardinal Fardinal Fathir Alqodri Faula Rahmi Feidihal Feidihal Firdaus Firdaus Firdaus G Gunawarman, G Hamzah Putra Hanif Hanif Hanif Hanif Haris Haris Harri Biora Putra Hersalniar Ichlas Nur Ichlas Nur Ikhwan Nofitra Ilham Handoko Ilham Saputra Intan Rahma Yuni Isnanda Isnanda Jalal, Ramzi Januar Putra Jon Affi, Jon Jufri , Agustion Jumyetti Jumyetti Junaidi - - Junaidi Junaidi La Ode Muh Munadi Laura Nisa Tilqadri Maimuzar Maimuzar Maimuzar Menhendry Menhendry Menhendry Muldarisnur, Mulda Mulyadi Mulyadi Mulyadi Nandi Pinto Nasirwan Nasirwan Nofriadi Nofriadi Nofriadi Nofriadi Nota Effiandi Nota Effiandi Novesar Jamarun Oktavianus Ganumba Oong Hanwar Rahma Fikri Nuradi Rahmadhani Rahmi Hidayati Rahmi Suryani Rakiman Rakiman Rakiman Rakiman Rakiman Ravi Pratama Syael Revaldy Maiman Rina Rina Rina Rina Rino Sukma Roni Kurniawan Putra Ruzita Sumiati Saif Hadid Alkhairi Sanny Ardhy Saputra, Ilham Silva Azaria Mahaputri Silva Azaria Mahaputri Siska Angraini Rikosa Rikosa Sri Handani Sri Handani Sukatik Syukri Syukri Teguh Yaman Telaumbanua Tri Ego Wiranata Ultra Marsedi Ummi Salamah Vikra Yudha Yolanda Afza Yasmendra Rosa Yuliarman Yuliarman Yuliarman Yuliarman Yuniati, Yuniati Yusri Mura Zaimahwati, Zaimahwati Zhafiri, Syahman Zikri Hamdani Zulhendri Zulhendri