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An Analysis of Challenges, and Prospects of Overcrowding and Heritage Small Island as a Tourism Destination: Pulau Lengkang, Batam Case Study I Wayan Koko Suryawan; Sapta Suhardono; Iva Yenis Septiariva; Wisnu Prayogo
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i1.5045

Abstract

This paper explores Pulau Lengkang, an island near Batam City, known for its natural beauty and cultural heritage. It examines the impact of overcrowding on its aspiration to become a prominent tourism heritage destination. The main goal is to analyze the strengths, weaknesses, opportunities, and threats Pulau Lengkang faces in its development into a renowned tourist hub, with a focus on the challenges of overcrowding and the potential for sustainable tourism. The study employs a qualitative approach, relying on thorough literature review to understand the island's unique cultural and historical aspects and the implications of increasing visitor numbers on its heritage and environment. The findings reveal that while Pulau Lengkang boasts significant cultural and historical appeal, overcrowding threatens to strain its infrastructure and dilute its heritage. However, opportunities for sustainable tourism and cultural preservation present viable pathways to enhance its tourism appeal and support local community well-being. The study suggests that adopting eco-tourism and cultural engagement strategies can help safeguard Pulau Lengkang's heritage and promote sustainable development.
Optimization of the Mechanical Properties of Bio-degradable Plastics from Chitosan with Acetic Acid Solvent Ani Purwanti; Eka Sulistyaningsih; Wisnu Prayogo; Muhammad Yusuf
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 3 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.5116

Abstract

Shrimp shell waste contains chitin which can be processed into chitosan. Chitosan can be utilized as an edible plastic. The film is expected to maintain food quality by resisting water vapour transfer as a preservative and maintaining odour. Edible plastics as food protectors are expected to have optimal mechanical properties. Chitosan films are brittle, so plasticizers are used to increase their flexibility. The mechanical properties of the film may change during storage time. The decline in film quality is expected to be fast enough to allow edible plastics for food wrapping. This study aims to determine the effect of glycerol addition and film storage time on the mechanical properties of edible chitosan film. From the results obtained, adding glycerol plasticizer produces films with thickness and elongation that tend to increase. In contrast, the tensile strength value increases and then decreases with the addition of glycerol. The optimal mechanical strength value was obtained in the film solution with glycerol at 0.3 mL/g chitosan with a maximum tensile strength of 200 kgf/cm2 and a per cent elongation of 135%. The thickness of the film produced was 0.17 mm. The film produced in this study has met the standards of film mechanical strength (tensile strength and per cent elongation) based on the Japanese Industrial Standard (JIS). Meanwhile, based on the Indonesian National Standard (SNI), the tensile strength value produced in this study has yet to meet the SNI standard.
Simulation of Signalless Intersection Handling Using the VISSIM Model at the Punge Intersection, Banda Aceh City, Indonesia M. Isya; Yusria Darma; Rachmat Taufiqy; Juliana Fisaini; M. Faisi Ikhwali; Wisnu Prayogo; I Wayan Koko Suryawan
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 3 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.5177

Abstract

The Punge Intersection is one of the four-armed unsignalized intersections in Banda Aceh City without traffic regulations such as traffic lights, roundabouts, or other warning signs. This condition is very troublesome for road users, especially during peak hours. It is considered necessary to evaluate the performance of the intersection along with alternative treatments that produce the best performance to meet the standards. Most of the previous studies relied heavily on tailor-made simulation tools to evaluate control algorithms, but the use of simulation platforms to make system comparisons through modeling is still very rare, especially in Indonesia. Analysis and modeling at the Punge Intersection using the MKJI method and PTV VISSIM 10.00-02 (VISSIM) software. Traffic volume data (plan), road geometric, and environmental conditions are needed in data processing operations using VISSIM. Three modeling scenarios were carried out with the implementation of a one-way road for arm A in the entry direction, installation of a traffic signaling tool, called APILL, roundabout planning and widening of each arm. A roundabout planning simulation with type R10-22 with widening on each road section can make the Punge Intersection with the best LOS and meet the best service levels.
A Review: Green Life And Behavior Change for Net Zero by Non Governmental Organizations Wisnu Prayogo; Rachmat Mulyana; Janter Pangaduan Simanjuntak; I Wayan Koko Suryawan; Laili Fitria; Edo Barlian; Putri Lynna A. Luthan; Dion Awfa; Ahmad Daudsyah Imami; Rifka Noor Azizah; Ani Purwanti; Sitepu Amrina Rosyada; Vemi Ridantam; Zhilli Izzadati Khairuni
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 3 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.5178

Abstract

Global warming and environmental issues are being caused by the overuse of fossil fuels and increased industrialization around the world, which has resulted in the production of greenhouse gases. As a result, it's crucial to reach net-zero carbon emissions. By balancing the total quantity of carbon dioxide or other greenhouse gas emissions over a specific period and taking actions that are ecologically responsible, net zero carbon emissions can be accomplished. For environmental sustainability to be successful, it must be able to influence people's attitudes and behavior toward the environment. To understand NGOs' obligations in supporting net-zero carbon emissions, this paper presents a methodical debate utilizing NGOs as case studies. The method is employed in this work by reviewing the body of primary and secondary research on the study issue. This essay initially lists different environmental NGOs organizations before categorizing and outlining some of the significant GHGs reduction initiatives made by these organizations. This essay also addresses key issues that must be addressed upon to achieve the best outcomes. This report gives a broad overview of the synergizing domains that NGOs around the globe work in to assist improvement environmental security.
Evaluasi Kapasitas Saluran Drainase dalam Menampung Limpasan Hujan dan Limbah Cair Domestik pada Ruas Jalan Tuamang–Jalan Rakyat di Kota Medan Joy Eklesia Pasaribu; Hansen Anugrah Malau; Wisnu Prayogo
Jurnal Studi dan Aplikasi Teknik Sipil (JSATS) Vol. 2 No. 1 (2026): Februari
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/jsats.v2.i1.2

Abstract

Perkembangan kawasan perkotaan di Kota Medan meningkatkan luas permukaan kedap air serta beban sistem drainase akibat limpasan hujan dan limbah domestik. Penelitian ini bertujuan mengevaluasi kapasitas saluran drainase dalam menampung debit gabungan pada ruas Jalan Tuamang–Jalan Rakyat. Metode yang digunakan meliputi analisis hidrologi untuk menentukan hujan rencana, perhitungan debit limpasan menggunakan metode rasional, proyeksi penduduk untuk estimasi limbah domestik, serta analisis hidraulika berdasarkan kondisi eksisting saluran dan sedimentasi. Hasil menunjukkan debit limpasan sebesar 14 m³/detik dan debit limbah domestik sebesar 0,025 m³/detik, sehingga total debit mencapai 14,025 m³/detik. Kondisi saluran eksisting mengalami sedimentasi dengan volume 37,28 m³ yang mengurangi kapasitas efektif. Evaluasi menunjukkan saluran masih layak untuk periode ulang 2 dan 5 tahun, cukup layak untuk 10 tahun, namun tidak layak untuk periode ulang 25 dan 100 tahun. Hal ini mengindikasikan bahwa sistem drainase belum mampu mengakomodasi debit pada kondisi hujan ekstrem. Kesimpulannya, kapasitas saluran drainase eksisting tidak memadai untuk menampung debit total secara optimal, terutama pada hujan intensitas tinggi. Oleh karena itu, direkomendasikan peningkatan kapasitas saluran melalui pelebaran atau pendalaman, pengendalian sedimentasi secara rutin, serta penerapan sistem drainase terintegrasi seperti pemisahan saluran limbah domestik dan limpasan hujan serta pembangunan infrastruktur drainase berkelanjutan.
ORGANIC REMOVAL IN DOMESTIC WASTEWATER USING ANAEROBIC TREATMENT SYSTEM-MBBR WITH FLOW RECIRCULATION RATIO AND INTERMITTENT AERATION Michael Subroto; Wisnu Prayogo; Prayatni Soewondo; Ahmad Soleh Setiyawan
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 5, NUMBER 3, OCTOBER 2022
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v5i3.12776

Abstract

Aim: The modified Small-scale Domestic Sewage Treatment Plant (SDSTP) reactor with anaerobic fixed bed- aerobic Moving Bed Biofilm Reactor (MBBR) is implemented to find the optimum condition for organic degradation related to recirculation and intermittent aeration practices with the purpose to comply with the governmental regulation standard.  Methodology and Results: This research have been done with the artificial wastewater with characteristic similar to the sewage treatment plant (STP) of Telkom company with ratio C:N:P of characterized domestic wastewater is 252.40:85.42:3.01 that consists of glucose, NH4Cl, potassium dihydrogen phosphate, potassium nitrate, and sodium nitrite (NaNO2). Reactor design related with attached biomass in media until 2478.56 mg MLVSS.L-1 with the growth kinetics rate (μ) of 0.4691 day—1. The artificial wastewater is applied the determine the optimum variation of flow recirculation and periodic aeration in specific Hydraulics Retention Time (HRT) and Organic Loading Rate (OLR). In this research, the optimum recirculation ratio for organic degradation is 26.40 L.h-1 and the optimum aeration frequency variation is  12 hours in intermittent frequency with the maximum efficiency of organic degradation of 76.10% with the degradation efficiency real domestic wastewater application from STP Telkom company is 83.09%. Conclusion, significance and impact study:  Stover-Kincannon model is the best model with highest accuracy rate to model the degradation performance of organic compounds by the anaerobic fixed bed- aerobic MBBR SDSTP with determination coefficient 0.8623 and also degradation coefficient 38.121 day-1 compared with other models studied in this research.
Peningkatan Kualitas Layanan Pembelajaran Flipped Classroom melalui Penguatan Literasi Digital Pada Dosen Fakultas Teknik Universitas Negeri Medan, Indonesia Sarwa Sarwa; Ridho Azahar; Ummu Salamah; Heri Franata Sitorus; Ahmad Zulfikar; Riansayah Putra; Al Fatahillah; Liana Atika; Wisnu Prayogo
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 9, No 5 (2026): Volume 9 Nomor 5 (2026)
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v9i5.25386

Abstract

ABSTRAK Perkembangan teknologi digital menuntut dosen untuk memiliki literasi digital yang memadai dalam mendukung implementasi pembelajaran inovatif, khususnya model flipped classroom. Namun, masih terdapat kesenjangan kemampuan dosen dalam memanfaatkan teknologi pembelajaran secara optimal yang berdampak pada kualitas layanan pembelajaran. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan literasi digital dosen melalui program pelatihan dan pendampingan dalam implementasi flipped classroom pada dosen di Fakultas Teknik, Universitas Negeri Medan. Metode yang digunakan meliputi pelatihan, praktik langsung, serta evaluasi melalui desain pre-test dan post-test. Analisis dilakukan secara deskriptif dan inferensial untuk melihat perubahan sebelum dan sesudah kegiatan. Hasil kegiatan menunjukkan adanya peningkatan signifikan pada literasi digital dosen, dari rata-rata 47,19 ± 5,71 menjadi 83,07 ± 11,47. Uji t berpasangan menunjukkan perbedaan yang sangat signifikan (p 0,001) dengan ukuran efek yang sangat besar (Cohen’s d = 2,70). Selain itu, hasil evaluasi menunjukkan peningkatan kemampuan dosen dalam merancang dan mengimplementasikan pembelajaran flipped classroom secara lebih efektif. Temuan ini menunjukkan bahwa program pelatihan dan pendampingan literasi digital memberikan dampak positif terhadap peningkatan kualitas layanan pembelajaran. Kegiatan ini menegaskan pentingnya penguatan kompetensi digital dosen sebagai strategi dalam meningkatkan efektivitas pembelajaran di era digital serta dapat direplikasi pada konteks institusi lain. Kata Kunci: Literasi Digital, Flipped Classroom, Pengabdian Kepada Masyarakat, Dosen, Peningkatan Kapasitas.  ABSTRACT The rapid development of digital technology requires lecturers to possess adequate digital literacy to support innovative learning models, particularly the flipped classroom approach. However, gaps remain in lecturers’ ability to optimally utilize educational technology, which affects the quality of learning services. This community service program aims to enhance lecturers’ digital literacy through structured training and mentoring in the implementation of flipped classroom practices at the Faculty of Engineering, Universitas Negeri Medan. The methods included training sessions, hands-on practice, and evaluation using a pre-test and post-test design. Data were analyzed using descriptive and inferential approaches to assess changes before and after the intervention. The results indicate a significant improvement in lecturers’ digital literacy, with the mean score increasing from 47.19 ± 5.71 to 83.07 ± 11.47. Paired t-test analysis revealed a highly significant difference (p 0.001) with a very large effect size (Cohen’s d = 2.70). In addition, the evaluation results demonstrate improved lecturer capacity in designing and implementing flipped classroom learning more effectively. These findings confirm that digital literacy training and mentoring have a positive impact on improving the quality of learning services. This program highlights the importance of strengthening lecturers’ digital competencies as a strategic approach to enhancing learning effectiveness in the digital era and provides a replicable model for similar institutional contexts. Keywords: Digital Literacy, Flipped Classroom, Community Service, Lecturer, Capacity Building.
Analisis Pengaruh Sedimentasi terhadap Kapasitas Drainase pada Ruas Glugur Darat II – Pulo Brayan Darat I Kota Medan: Analysis of Sedimentation Effects on Drainage Capacity in the Glugur Darat Area of Medan Nadya Lamria; Charly Yosep Ardana Silalahi2; Rumilla Harahap; Wisnu Prayogo; Rizky Simanjuntak; Yuni Yolanda
Jurnal Teknologi Lingkungan Vol. 4 No. 1 (2026): Jurnal Teknologi Lingkungan
Publisher : Fakultas Teknik Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jtl.v4i1.34548

Abstract

This study aims to analyze the effect of sedimentation on drainage capacity in the Glugur Darat II to Pulo Brayan Darat I area, Medan City. The main issue addressed is the decline in drainage performance due to sediment accumulation, which potentially causes inundation and flooding, especially in areas with high rainfall intensity. The research method used is field observation through direct measurements at several drainage segments, including channel width, sediment height, water depth, and channel dimensions. Secondary data such as rainfall and population were also used as supporting variables. The results show that sediment height varies across observation segments, with a maximum value reaching 25 cm, significantly reducing the effective capacity of the drainage channel. In addition, high annual rainfall intensity exceeding 3000 mm/year worsens drainage conditions. Sedimentation has been proven to reduce water storage capacity, thereby increasing the risk of inundation. Therefore, routine maintenance and sediment control are necessary to improve drainage system performance.
Evaluation of Drainage Channel Capacity for Rainfall Runoff and Domestic Wastewater on Willem Iskandar Street, Medan: Evaluasi Kapasitas Saluran Drainase untuk Limpasan Hujan dan Limbah Domestik di Jalan Wiliam Iskandar , Medan Tantowi Nababan Wisnu Prayogo, Rizky Simanjuntak; Wisnu Prayogo; Rizky Simanjuntak
Jurnal Teknologi Lingkungan Vol. 4 No. 1 (2026): Jurnal Teknologi Lingkungan
Publisher : Fakultas Teknik Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jtl.v4i1.34756

Abstract

Drainase jalan sangat penting untuk memastikan permukaan jalan tidak tergenang atau banjir saat hujan. Di sini, saluran utama memainkan peran penting karena merupakan bagian penting dari "muara" yang mengumpulkan semua aliran dari saluran sekunder dan tersier sebelum akhirnya dialirkan ke sungai. Tujuan penelitian ini adalah untuk menyalakan apakah dimensi saluran utama yang ada masih mampu menampung desain debit. Metode yang digunakan standar tetapi kuat: kami menghitung data curah hujan, menggunakan rumus hidrologi untuk menentukan debit, dan kemudian memeriksa kapasitas penampang saluran. Pada dasarnya, jika kita menginginkan sistem drainase yang optimal, variabel seperti intensitas curah hujan, ukuran daerah tangkapan udara, dan kemiringan saluran harus dihitung dengan cermat untuk mencegah kerusakan jalan yang cepat akibat air.
Evaluation of Drainage Channel Capacity on Rela–Sutomo Road, Medan City, Indonesia Melvi Maulita Napitupulu; Ridho Azahar; Wisnu Prayogo; Fikryah Atikah Pane; Sarra Rahmadani; Rizky Simanjuntak; Ahmad Zulfikar
Journal of Infrastructure and Civil Engineering Vol. 6 No. 2 (2026)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v6i2.192

Abstract

This study evaluated the capacity of the drainage system along Rela–Sutomo Road, Medan, to accommodate rainfall runoff and domestic wastewater. Rapid urban development and population growth have increased impervious surface coverage, surface runoff, and domestic wastewater generation, potentially exceeding the conveyance capacity of the existing drainage channels. This study aimed to determine whether the existing drainage system could accommodate the combined design discharge. The analysis included population projection using the least-squares method, estimation of domestic wastewater discharge, rainfall frequency analysis using the selected probability distribution for a 10-year return period, rainfall intensity estimation using the Mononobe method, runoff calculation using the rational method, and channel capacity calculation using Manning’s formula. Sediment depths and channel dimensions were directly measured across 10 drainage segments. The results showed that the design runoff discharge for the selected 10-year return period reached 24.46 m³/s, whereas the existing channel capacity was only 1.31 m³/s. Sediment accumulation reduced the effective cross-sectional area and decreased the channel capacity by up to 30%. Consequently, the combined inflow substantially exceeded the available channel capacity, indicating critical hydraulic overload and a high risk of flooding and surface inundation. The existing drainage system is therefore inadequate and requires channel normalization, periodic sediment removal, and hydraulic capacity improvement
Co-Authors Aarce Tehupeiory Ahmad Daudsyah Imami Ahmad Zulfikar Ainan Azka Aisyah Makafta Karina Al Fatahillah Alam, Firdha Cahya Almira Davina Nastiti Ani Purwanti Ani Purwanti Annisa Fillaeli Annisa Zahra Annisa Zahra Fakhira Ardino Wira Jaya Arjuna Sihole Catherine Honey Mahadewi Charly Yosep Ardana Silalahi2 Daniel Mario Sidabutar Desi Paskalia Tinambunan Desy Rahmadani Telaumbanua Dhuhan Dion Awfa Edo Barlian Edo Kharima Army Edwart Samuel Gaby Siahaan Eka Sulistyaningsih Emilia, Esi Erli Mutiara Evi Eri Narita Evi Siti Sofiyah Fajar Arjuna Faria, Niswatun Fifi Aliyda Fikri Damara Fikryah Atikah Pane Fitria, Laili FITRIA, NOVI Gari Daniel Silaban Hansen Anugrah Malau Harahap, Rumilla Haris Kurniawan Harry Wibowo Haryana, Nila Reswari I Gede Wyana Lokantara . I Wayan Koko Suryawan I Wayan Koko Suryawan I Wayan Koko Suryawan Ilmi Alfiah Daulay Imelda Masni Juniaty Sianipar Istiqomah Shariati Zamani Iva Yenis Septiariva Jamaluddin J Janter Pangaduan Simanjuntak Janter Pangaduan Simanjuntak Joy Eklesia Pasaribu Juliana Fisaini Juliana Fisaini Jun Kristiani Nduru Kanisius Delvin S Gulo Kemala Jeumpa Khairunnisak Khairunnisak Khalill Gibran Diqri Kinanti Wijaya Kurniawan Abdillah Liana Atika Lioni Gabby Ella Br Ginting M. Andrey Harun M. Faisi Ikhwali M. Isya M. Isya Mega Mutiara Sari Mega Mutiara Sari Mega Mutiara Sari Melvi Maulita Napitupulu Meuthia Fadila Michael Subroto Mita Dwi Putri Muammar Qadafi Muhammad Al Bukhary Muhammad Khairul Ikhsan Nasution Muhammad Meiko Cahya Anugrah Muhammad Yusuf Nabilah Fernanda Daulay Nadya Lamria Nahesson Hotmarama Panjaitan Nanda Safira Ersa Nasrul Putra Natachia Siburian Nathanael Sitanggang Nathanael Sitanggang Novi Fitria Novi Fitria Novi Kartika Sari Novriadi Novrizaldi Wardana Nur Fitri Nur Novilina Arifianingsih Nurul Mawaddah Oktavianus Napitu Pratiwi Claudia Gaina Prayatni Soewondo Prayatni Soewondo Putra, Riansyah Putri Lynna A. Luthan Putri Lynna A. Luthan Putri Lynna A. Luthan Putri Lynna Luthan Qurrotin Ayunina Maulida Okta Arifianti Rachmat Mulyana Rachmat Taufiqy Rachmat Taufiqy Rafika Hilmi Nasution Resarizki Utami Riansayah Putra Ridho Azahar Ridho Azahar Ridhosari, Betanti Rifka Noor Azizah Rika Dona Puspita Risma Pradina Kusuma Risti Rosmiati Rizky Simanjuntak Royana Chairani Rumila Harahap Rumillah Harahap Sakkot Matua Gong Hasibuan Sapta Suhardono Sarra Rahmadani Sarwa, Sarwa Satrio Zaidan Faiz Ananda Seny Climenty Siagian Setiyawan, Ahmad Soleh Simanjuntak, Rizky Sitepu Amrina Rosyada Sitepu Amrina Rosyada Siti Zulfa Yuzni Sitorus, Heri Franata Suryawan, I Wayan Koko Sutrisno Syahreza Alvan Tantowi Nababan Wisnu Prayogo, Rizky Simanjuntak Tiara Gultom Tiur Sari Tua Sinaga Trian Saputri Ulli Kadaria Ummatin, Kuntum Khoiro Ummu Salamah Vemi Ridantam Vemi Ridantam Wahyu Hutria Wardatun Najwa Yacub, Mirzal Yessika Angelina Simaremare Yulisa Putri Yuni Yolanda Yusria Darma Zhilli Izzadati Khairuni Zhilli Izzadati Khairuni Zulham Prasetyo Zulkifli Matondang