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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Dampak Jukung (Jurnal Teknik Lingkungan) Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Dinamis
Isra Suryati
Program Studi Teknik Lingkungan, Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation

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Studi Perancangan Dan Pemanfaatan TPS 3R Untuk Sampah TPS (Tempat Pengolahan Sampah Rumah Tangga Dian Kasih; Irvan Indrawan; Lies Setyowati; Munir Tanjung; Isra Suryati
Jurnal Dampak Vol 15, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.15.1.16-22.2018

Abstract

As the population increases, waste generation and composition will increase. Therefore, there is a need for planned and effective waste handling so that the problem of waste can be resolved in accordance with the 3R (Reuse, Reduce, and Recycle) concept. The aim of this research is to calculate the amount of waste generation and the composition of domestic waste produced by the residents of Medan Denai, and also devise the type of 3R Waste Treatment Plant for the District of Medan Denai. The method for measuring the generation and composition of waste are based on SNI 19-3964-1994, that is based on income level. Meanwhile, the typical planning of TPS 3R is obtained from the calculation of waste generation which is associated with the projection of population. The result showed that the average of household waste in the District of Medan Denai was 0.265 kg/person/day or 1.4 l/person/day. The composition of household waste generation in the District of Medan Denai is dominated by food waste 65.38 %. It is estimated that in 2026, the waste generation produced in the District of Medan Denai would reach about 41,593.7 kg/day. The economic potential that can be generated by using 3R concept is estimated reaching about Rp11,687,190 - Rp85,370,971 per day. Managing waste with 3R concept require a TPS with 1,488.24 m2 of area to process the household waste, with the estimated cost required to build the facility is Rp598,960,540 and the operational cost is Rp104,000,000 per month.
ANALISIS ISOPHLET KONSENTRASI DAN ESTIMASI POTENSI PENURUNAN KARBON MONOKSIDA DI KOTA MEDAN Isra' Suryati; Hafizhul Khair
Jurnal Dampak Vol 13, No 2 (2016)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.13.2.51-59.2016

Abstract

This study aims to map the concentration of carbon monoxide (CO) in Medan city and to estimate the potential reduction in carbon monoxide in some streets of Medan by applying mass transit based on simulation. This research was conducted by sampling CO in the 12 (twelve) points in Medan by grab sampling. CO concentration was analyzed using NDIR methods by CO Monitor tools. The results showed the concentration of CO in Medan between 1145.2 mg/m3 - 27484,7 mg/m3. This condition is still below the national ambient air quality standard of Government Regulation No. 41, 1999 (30,000 mg/m3). Based on the concentration isophlet map that points that have the highest concentration located in the surrounding roadside such as at Jl. SM Raja. To reduction the CO concentration in the ambient air around the roadside is necessary to plan programs and policies related to transportation. If the scenarios or simulation with application of the concept of mass transportation such as BRT CNG and BRT Diesel in some streets of Medan then will be able to reduce CO emissions of about 25.02% to 29.44%.Keywords: vehicle emissions, carbon monoxide, map isophlet, mass transitABSTRAKPenelitian ini bertujuan untuk memetakan konsentrasi gas karbon monoksida (CO) di Kota Medan dan melakukan estimasi potensi penurunan karbon monoksida di beberapa ruas jalan Kota Medan dengan menerapkan transportasi massal berbasis simulasi. Penelitian ini dilakukan dengan pengambilan sampel CO di 12 (dua belas) titik di Kota Medan secara grab sampling. Konsentrasi CO dianalisis menggunakan metode NDIR dengan alat sampling yaitu CO Monitor. Hasil penelitian menunjukkan konsentrasi CO di Kota Medan antara 1145,2 mg/m3 27484,7mg/m3. Kondisi ini masih dibawah baku mutu udara ambien nasional Peraturan Pemerintah No. 41 tahun 1999 (30.000 mg/m3). Berdasarkan peta isophlet konsentrasi tersebut bahwa titik-titik yang mempunyai konsentrasi tertinggi berlokasi di sekitar jalan salah satunya seperti di Jl. SM Raja. Untuk menurunkan konsentrasi CO di udara ambien di sekitar jalan perlu dilakukan perencanaan program dan kebijakan terkait transportasi. Apabila dilakukan skenario atau simulasi penerapan konsep transportasi massal berupa BRT CNG dan BRT Diesel di beberapa ruas jalan Kota Medan akan mampu mengurangi beban emisi CO sekitar 25,02% sampai dengan 29,44%.Kata kunci : emisi kendaraan, karbon monoksida, peta isophlet, transportasi massal
Analisis Sebaran Total Suspended Particulate (TSP) Dengan Model Gaussian Point Source Di Pembangkit Listrik Berbahan Bakar Biomassa Shindy Zellia; Ivan Indrawan; Lies Setyowati; Muhammad Faisal; Isra' Suryati
Jurnal Dampak Vol 15, No 2 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.15.2.82-87.2018

Abstract

The study aims to analyze the concentration of TSP generated from the smokestacks of biomass fuelled power plant with 2 x 15 MW  capacity along with the pattern of distribution in the ambient air around the plant. The field observation conducted in Jl. K. L. Yos Sudarso KM 10.5 by making five (5) ambient air sample point, the point I is located around 130 m south, the point II within 220 m south, point III around 110 m east, point IV around 325 m north and point V around 100 m west from sources emissions. The sample is taken for 3 (three) days, i.e in the morning, afternoon and evening. Maximum TSP concentration was measured at point III at 50,93 μg/m3. Meanwhile, according to Gaussian Point Source model, the maximum TSP concentration at point I is around 1,79 μg/m3. The concentration of TSP is still below the ambient air quality standard. Furthermore, the measured TSP concentration and TSP modeling were mapped with the Surfer program version 11.0. Based on the results, the measured TSP concentration mapping indicates that the highest affected area is located at the eastern region of the emission source. Moreover, Mapping of TSP concentration models show that the highest affected area is located at the southern part of the emission source.
Analisis Konsentrasi SO2 dan CO Menggunakan Model Gaussian Line Source Di Udara Ambien Ridwan Syahputra Samosir; Ivan Indrawan; Isra Suryati; Hendri Irwandi
Jurnal Dampak Vol 15, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.15.1.51-59.2018

Abstract

Purpose of this study to analyze concentration of SO2 and CO at Tanjung Morawa Toll Gate and Amplas Toll Gate with Gaussian Line Source modeling. Based on the measurement of ambient roadside air quality at Tanjung Morawa Toll Gate and Amplas Toll Gate, CO and SO2 concentrations still meet the ambient air quality standard according to PP. 41 year 1999. The highest concentration of CO at Tanjung Morawa Toll Gate is 447,06 μg/m3 and at Amplas Toll Gate is 389,54 μg/m3 while The highest concentration of SO2 at Tanjung Morawa Toll Gate is 97,7 μg/m3 and at Amplas Toll Gate is 62.51 μg /m3. Based on the calculation using Gaussian Line Source model, the highest CO concentration at Tanjung Morawa Toll Gate is 263,16 μg/m3 and at Amplas Toll Gate is 258,16 μg/m3 while The highest concentration of SO2 at Tanjung Morawa Toll Gate is 1,64 μg /m3 and at Amplas Toll Gate is 1.32 μg/m3. validation test results with IOA, NMSE, FB, and Fa2, Gaussian Line Source model can be applied at Tanjung Morawa Toll Gate and Amplas Toll Gate for CO parameters. Meanwhile Gaussian Line Source model can not be applied for SO2 parameters at Tanjung Morawa Toll Gate and Toll Gate of Amplas.
Studi Kandungan Logam Berat (As, Cd, Cr, Pb Dan Hg) dalam Particulate Matter 10 Mikron (PM10) di Beberapa Ruas Jalan Kota Medan Isra' Suryati; M Nasri Akbar; Nurrakhmah Latifah
Jurnal Dampak Vol 16, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.16.2.77-85.2019

Abstract

The increase in population is directly proportional to the increase in transportation facilities. Medan city as one of the metropolitan cities also experienced an increase in the number of vehicles ± 0.6% / year. Motorized vehicles are one source of emissions in reducing urban air quality. One parameter that has a direct impact on health is particulate matter of 10 microns (PM10). This study aims to analyze the content of heavy metals (As, Cd, Cr, Hg and Pb) in PM10 from direct measurements on SM Raja Street, Balai Kota Street and Pinang Baris Street. Analysis of heavy metal content in PM10 is carried out by Inductively Coupled Plasma (ICP). Based on the observation of traffic volume in these 3 (three) roads, the highest number of vehicles is on SM Raja Street which is 8,417 units/hour (morning) and 10,043 units/hour (afternoon). The high number of vehicles on SM Raja Street because this road is a cross-province road. PM10 measurement results are 271,505 μg/Nm3 on SM Raja Street, 92,75 μg/Nm3 at Pinang Baris Street and 85,035 μg/Nm3 at Balai Kota Street. When compared with the national ambient air quality standard (150 μg / Nm3) which exceeds the quality standard is SM Raja Street. The content of some heavy metals in PM10 on several roads in Medan City for As parameters (0.57 - 1.80 μg/Nm3), Cd (1.97 - 3.63 μg/Nm3), Cr (0.08 - 0, 15 μg/Nm3), Hg (0.57 - 0.99 μg/Nm3) and Pb (0.45 - 0.63 μg/Nm3). One way to reduce heavy metal content in PM10 is to increase the area of green open space in Medan City.Keywords: Heavy metals, PM10, area of green, transportation ABSTRAKPeningkatan populasi berbanding lurus dengan peningkatan fasilitas transportasi. Kota Medan sebagai salah satu kota metropolitan juga mengalami peningkatan jumlah kendaraan ± 0,6% / tahun. Kendaraan bermotor adalah salah satu sumber emisi dalam mengurangi kualitas udara perkotaan. Salah satu parameter yang memiliki dampak langsung terhadap kesehatan adalah partikel 10 mikron (PM10). Penelitian ini bertujuan untuk menganalisis kandungan logam berat (As, Cd, Cr, Hg dan Pb) di PM10 dari pengukuran langsung di Jalan SM Raja, Jalan Balai Kota dan Jalan Pinang Baris. Analisis kandungan logam berat dalam PM10 dilakukan oleh Inductively Coupled Plasma (ICP). Berdasarkan pengamatan volume lalu lintas di 3 (tiga) jalan ini, jumlah kendaraan tertinggi adalah di Jalan SM Raja yaitu 8.417 unit / jam (pagi) dan 10.043 unit / jam (sore). Tingginya jumlah kendaraan di Jalan SM Raja karena jalan ini merupakan jalan lintas provinsi. Hasil pengukuran PM10 adalah 271.505 μg / Nm3 di Jalan SM Raja, 92,75 μg / Nm3 di Jalan Pinang Baris dan 85.035 μg / Nm3 di Jalan Balai Kota. Jika dibandingkan dengan standar kualitas udara ambien nasional (150 μg / Nm3) yang melebihi standar kualitas adalah Jalan SM Raja. Kandungan beberapa logam berat dalam PM10 pada beberapa jalan di Kota Medan untuk parameter As (0,57 - 1,80 μg / Nm3), Cd (1,97 - 3,63 μg / Nm3), Cr (0,08 - 0, 15 μg / Nm3), Hg ( 0,57 - 0,99 μg / Nm3) dan Pb (0,45 - 0,63 μg / Nm3). Salah satu cara untuk mengurangi kandungan logam berat di PM10 adalah dengan meningkatkan area ruang terbuka hijau di Kota Medan.Kata Kunci: logam berat, PM10, terbuka hijau, transportasi
Pengaruh Kecepatan Angin, Kelembapan dan Suhu Udara terhadap konsentrasi SO2 Ambien dan Pemetaan SO2 Amben di Sekitar PT. Kawasan Industri Medan Chandra Iramawati; Muhammad Turmuzi; Isra' Suryati; Lies Setyowati; Eka Lestari Mahyuni
Jurnal Dampak Vol 15, No 2 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.15.2.72-76.2018

Abstract

This study aims to determine the effect of wind speed, humidity and air temperature on the concentration of SO2 in ambient air around PT. Medan Industrial Area (KIM) and to find out the description of SO2 concentration mapping around KIM. This study was limited to KIM Phase I and II and sampling was carried out at 6 (six) points. The results obtained were the lowest SO2 concentration of 58.63 µg / m3 and the highest concentration was 112.91 µg / m3. Based on the linear regression test, the result is that the higher the wind speed, the concentration of SO2 in the area around KIM is lower and 15.1% SO2 concentration is influenced by wind speed. The higher the humidity of the air, the concentration of SO2 in the area around KIM is lower and 26% of the concentration of SO2 is influenced by humidity. The higher the air temperature, the higher the concentration of SO2 in the area around the KIM and 68.5% the concentration of SO2 is influenced by air temperature. Based on the results of mapping using the Surfer 11 version, the results obtained in the morning the highest SO2 concentration was in the southern part of KIM and the lowest SO2 concentration was in the northwestern part of KIM. During the day, the highest SO2 concentration was in the eastern part of the KIM and the lowest SO2 concentration was in the northwestern part of KIM.
ANALISA JENIS, BENTUK DAN KELIMPAHAN MIKROPLASTIK DI SUNGAI SEI SIKAMBING MEDAN Novrida Harpah Hasibuan; Isra Suryati; Ronald Leonardo; Anita Risky; Putri Ageng; Robiatul Addauwiyah
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 20, No 2 (2020): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.056 KB) | DOI: 10.36275/stsp.v20i2.270

Abstract

Sungai adalah salah satu jalur masuknya plastik ke lautan. Plastik bersifat presisten dan tahan lama tetapi paparan radiasi ultraviolet serta abrasi fisik mampu memecah plastik menjadi puing-puing kecil berukuran mikro sampai dengan nano yang disebut mikroplastik. Penelitian ini bertujuan untuk menganalisa jenis, bentuk dan jumlah mikroplastik di air dan sedimen Sungai Sei Sikambing Medan. Metode penelitian dilakukan dengan pengambilan sampel air dan sedimen sungai berdasarkan SNI 03-7016-2004 dan sampel merupakan hasil dari gabungan tempat (integrated samples). Pemisahan mikroplastik dilakukan dengan penyaringan, pengancuran senyawa organik, pemisahan berdasarkan berat jenis dan penyaringan menggunakan vacuum. Identifikasi jenis dan bentuk mikroplastik dilakukan dengan menggunakan FTIR dan menganalisa kelimpahan mikroplastik dilakukan dengan menggunakan mikroskop. Hasil penelitian menunjukkan Sungai Sei Sikambing mengandung mikroplastik jenis polietilen, polipropilen dan polisterin dengan bentuk film, fragment, granule, foam dan fiber. Jumlah rata-rata mikroplastik di air Sungai Sei Sikambing adalah 28,6 partikel/250 ml air sungai dan 32,3 partikel/100 g berat kering sedimen Sungai Sei Sikambing.
ANALISIS KONSENTRASI CO (KARBON MONOKSIDA) UDARA AMBIEN DARI SUMBER KENDARAAN BERMOTOR DENGAN MENGGUNAKAN MODEL METI-LIS DI KAWASAN BALAI KOTA, MEDAN Isra Suryati; Juni Hasudungan Siburian; Ahmad Rezky Daulay; Ivan Indrawan
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 21, No 2 (2021): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/stsp.v21i2.440

Abstract

Pemodelan dispersi polutan dapat membantu memprediksi distribusi polutan dari berbagai sumber emisi. Hasil pemodelan dispersi polutan dapat digunakan sebagai dasar untuk menentukan pengelolaan kualitas udara. Lokasi dari penelitian ini berada di kawasan Balai Kota Medan yang menjadi salah satu fokus lalu lintas teraktif di Kota Medan. Tujuan dibalik tinjauan ini adalah untuk memperkirakan sebaran CO dari sumber kendaraan di kawasan Balai Kota, memetakan sebaran CO, dan membandingkan hasil model dan pengamatan langsung di lapangan. Model dispersi polutan yang digunakan pada penelitian ini yaitu Model Meti-Lis. Berdasarkan pengamatan volume lalu lintas di 6 titik pengamatan, titik 2 merupakan lokasi dengan jumlah kendaraan terbanyak yaitu 9.532 unit/jam (hari) dengan laju emisi 130,49 g/m/jam. Berdasarkan hasil model Meti-Lis, konsentrasi CO tertinggi juga ditemukan pada titik 2 sebesar 2.452 g/Nm3. Hasil pengukuran langsung di lapangan diperoleh konsentrasi maksimum sebesar 8.952,38 g/Nm3 pada titik 2. Uji validasi dengan indeks Wilmott menghasilkan d=0,998, R=0,917, FB=-0,085, dan Fa2=0,133. Hasil validasi menunjukkan bahwa Model Meti-Lis dapat direkomendasikan dalam pemodelan dispersi polutan di sekitar kawasan Balai Kota Medan
KAJIAN INVENTARISASI EMISI GAS RUMAH KACA (CH4 DAN CO2) DARI SAMPAH RUMAH TANGGA DI KECAMATAN MEDAN JOHOR DAN KECAMATAN MEDAH HELVETIA Amalia Husna; Ivan Indrawan; Isra' Suryati
Jukung (Jurnal Teknik Lingkungan) Vol 8, No 2 (2022): SEPTEMBER 2022
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v8i2.14907

Abstract

ABSTRAK Sampah rumah tangga adalah salah satu sumber penyumbang emisi Gas Rumah Kaca (GRK) ke atmosfer yang dapat menyebabkan pemanasan global dan berdampak pada perubahan iklim. GRK yang dihasilkan dari sampah rumah tangga dua diantaranya adalah CH4 dan CO2.  Penelitian ini bertujuan untuk menghitung jumlah emisi GRK parameter CH4 dan CO2 dari sektor sampah rumah tangga pada Kecamatan Medan Johor, Kecamatan Medan Selayang, dan Kecamatan Medan Helvetia serta pemilihan skenario terhadap penurunan GRK. Terdapat 3 skenario yang dilakukan dalam menurunkan emisi GRK dari sektor sampah rumah tangga, diantaranya adalah skenario 1 dengan mengolah sampah di sumber, skenario 2 dengan adanya Bank Sampah, dan skenario 3 dengan adanya fasilitas Tempat Pengolahan Sampah Terpadu (TPST). Perhitungan emisi GRK dilakukan dengan mengacu pada metode perhitungan oleh Intergovernmental Panel on Climate Change (IPCC) tahun 2006. Pada kondisi eksisting total GRK yang dihasilkan pada Kecamatan Medan Johor adalah 1.889,305 ton CO2e dan Kecamatan Medan Helvetia 1.848,375 ton CO2e. Skenario 1 menurunkan 23,25% emisi GRK pada Medan Johor dan 19,12% pada Medan Helvetia. Skenario 2 menurunkan 3,89% emisi GRK pada Medan Johor dan 2,75% pada Medan Helvetia. Skenario 3 menurunkan 40,53% emisi GRK pada Medan Johor dan 35,82% pada Medan Helvetia. Kata kunci: CH4, CO2, Gas Rumah Kaca, IPCC, Sampah Rumah Tangga ABSTRACT Household waste is one of the contributors to greenhouse gas (GHG) emissions into the atmosphere which can cause global warming and have an impact on climate change. GHG emissions generated from household waste are CH4 and CO2. This study aims to calculate the CH4 and CO2 GHG emissions from the household waste sector in Medan Johor District and Medan Helvetia District and to determine the scenario for reducing GHG emissions. There are 3 scenarios to reduce GHG emissions from the household waste sector, scenario 1 is the processing of waste at the source by composting, scenario 2 with the reduction of waste from Waste Bank community, and scenario 3 with the reduction of waste from the Integrated Waste Treatment Facility (TPST). The calculation of GHG emissions is carried out by referring to the calculation method by the Intergovernmental Panel on Climate Change (IPCC) 2006. In the existing condition, the total GHG emissions produced in Medan Johor District is 1.889,305 tons CO2e and 1.848,375 tons CO2e in Medan Helvetia district. Scenario 1 reduces 23,25% of GHG emissions in Medan Johor district and 19,12% in Medan Helvetia district. Scenario 2 reduces 3,89% of GHG emissions in Medan Johor district and 2,75% in Medan Helvetia district. Scenario 3 reduces 40,53% of GHG emissions in Medan Johor district and 35,82% in Medan Helvetia district. Keywords: CH4, CO2, Greenhouse Gas, Household Waste, IPCC 
Analysis of Exhaust Gas Emission of Motor Vehicles with Variations of Fuel Types Isra Suryati; Ivan Indrawan; Jonathan Samuel Lubis; Munir Tanjung; Lies Setyowaty
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 3 (2023): November 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i3.755-764

Abstract

The discrepancy between the use of vehicle fuel types and the vehicle's technical specifications is expected to affect exhaust emissions. This study aims to examine the effect of using four types of fuel with different octane number specifications on two four-wheeled motor vehicles with an EFI fuel delivery system on exhaust gas emission parameters of carbon monoxide (CO), hydrocarbon (HC), carbon dioxide (CO2) and non-emitting gases Oxygen (O2). With a quantitative experimental approach method using the Automotive Emission Analyzer and simple linear regression analysis, the results showed that the use of variations with octane numbers RON 98, RON 92, RON 90, and RON 88 fuels at the same time as variations in engine speed (1000 – 3000) RPM showed an effect on concentration. HC and CO emissions decreased with each increase in the octane number of fuel, RON 92 fuel with the lowest average CO / HC (0.0013% / 0.46 ppm) and RON 98 with the lowest average CO / HC (0.0026% / 0 ppm). The use of RON 92 fuel is more effective and inexpensive to apply to vehicles with an EFI fuel delivery system (with compression of 1:10/10.2) compared to RON 98 fuel which emits higher CO and HC emissions at low engine speed (1000 -1500) RPM.
Co-Authors Ahmad Rezky Daulay Amalia Husna Anggia Sari, Yasmine Anita Risky Chandra Iramawati Dian Kasih Eka Lestari Mahyuni Hafizhul Khair Hasibuan, Novrida Harpah Hendri Irwandi Indrawan, Ivan Irvan Indrawan Ivan Indrawan, Ivan Jonathan Samuel Lubis Juni Hasudungan Siburian Khairani, Fitri Lies Setyowati Lies Setyowaty Listiany, Bayu Lubis, Affandi M Nasri Akbar Muhammad Adli Muhammad Faisal Muhammad Turmuzi Munir Tanjung Nurrakhmah Latifah Nurul Ika Putri Dalimunthe Pane, Muhammad Adil Fadhly Putri Ageng Rahmi Utami Ridwan Syahputra Samosir Robiatul Addauwiyah Ronald Leonardo Setyowati, Lies Shindy Zellia Siregar, Naomi Febriyanti Sito, Lucy Elisabeth Surya, Kevin Darma Suyanto Zulkarnain, Randy