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All Journal Journal of Innovation Research and Knowledge SENTRI: Jurnal Riset Ilmiah Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Dharmawangsa: International Journal of the Social Sciences, Education and Humanitis DEVOTE: Jurnal Pengabdian Masyarakat Global Jurnal Riset Ilmiah Ameena Journal RESWARA: Jurnal Riset Ilmu Teknik Jurnal Teknik Informatika dan Teknologi Informasi
Kerlima Hutagaol
Mpu Tantular University
Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Transportation Other

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PERBAIKAN BAKU MUTU AIR LIMBAH MELALUI OPTIMASI GREASE TRAP INDUK PADA SISTEM STP (STUDI KASUS: PONDOK INDAH MALL 2) Kerlima Hutagaol; Sri Hartanto; Muhammad Ilham Setiawan; Tri Mulait; Ahmad Ziddan Asyaffa
Journal of Innovation Research and Knowledge Vol. 6 No. 2 (2026): Juli 2026
Publisher : Bajang Institute

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Abstract

Abstract: Sistem pengolahan limbah cair (Sewage Treatment Plant/STP) pada fasilitas komersial seperti pusat perbelanjaan memiliki tantangan utama dalam menangani beban pencemar berbasis lemak, minyak, dan grease (FOG) yang berasal dari aktivitas food and beverage (F&B). Kandungan grease yang tinggi berpotensi menurunkan efisiensi proses biologis, menyebabkan fouling pada sistem aerasi, serta menghambat pemenuhan baku mutu air limbah. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan grease trap induk terhadap peningkatan kinerja STP dengan kapasitas 750 m³/hari di Pondok Indah Mall 2. Metode yang digunakan adalah pendekatan kuantitatif berbasis analisis performa sistem sebelum dan sesudah intervensi, dengan parameter utama meliputi Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), dan oil and grease, serta rasio recycle air hasil olahan. Hasil analisis menunjukkan bahwa penambahan grease trap induk mampu menurunkan konsentrasi oil and grease hingga 68%, yang berdampak pada peningkatan efisiensi proses biologis dan stabilitas sistem. Nilai COD menurun dari 180 mg/L menjadi 80 mg/L, sedangkan rasio recycle meningkat dari 25% menjadi 64%. Secara keseluruhan, intervensi upstream ini terbukti efektif dalam mengurangi beban pencemar sebelum masuk ke unit pengolahan utama, sehingga meningkatkan kualitas effluent dan mendukung pemanfaatan kembali air olahan.
THE IMPACT OF ENVIRONMENTAL POLLUTION IN THE THOUSAND ISLANDS Kerlima Hutagaol; Anugrah Ramadha Pratama; Fazry Alwy Sirodz; Purnama Ramdan; Angga Febriadi; Tiodorus Situmorang
Dharmawangsa: International Journal of the Social Sciences, Education and Humanitis Vol 6, No 3 (2025): Social Sciences, Education and Humanities
Publisher : Universitas Dharmawangsa Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/ijsseh.v6i3.7424

Abstract

The Thousand Islands, a key marine tourism destination in Indonesia, faces serious threats from environmental pollution. Plastic waste, oil spills, and unsustainable tourism activities damage the marine ecosystem, human health, and the socio-economic well-being of the local community. This study aims to examine the sources of pollution, its impacts, and mitigation efforts implemented in the Thousand Islands. The research method utilized a literature 1the primary pollution comes from microplastics, oil spills, and illegal tourism and fishing activities. This environmental damage reduces marine productivity, poses health risks, and fuels social inequality. Mitigation efforts need to be strengthened through plastic reduction policies, conservation education, and integrated waste management.
KEBIJAKAN ARSITEKTUR HIJAU DI KOTA MEDAN: ANALISIS KEBUTUHAN DAN IMPLEMENTASI REGULASI DAERAH Kerlima Hutagaol; Dendy Noviandy; Fahrian Ananda Harahap; Iqbal Rizki Pranata; Rizki Hartopik
Journal of Innovation Research and Knowledge Vol. 5 No. 8 (2026): Januari 2026
Publisher : Bajang Institute

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Kota Medan sebagai salah satu kota metropolitan di Indonesia mengalami pertumbuhan pembangunan yang pesat dan berdampak pada peningkatan konsumsi energi, penurunan kualitas lingkungan, serta berkurangnya ruang terbuka hijau. Dalam konteks tersebut, penerapan arsitektur hijau (green architecture) menjadi strategi penting untuk mewujudkan pembangunan berkelanjutan. Artikel ini bertujuan untuk menganalisis kebutuhan penerapan arsitektur hijau di Kota Medan, mengidentifikasi kebijakan serta peraturan daerah yang relevan, dan memberikan rekomendasi arah kebijakan yang dapat diterapkan oleh pemerintah daerah. Selain aspek kebijakan, penelitian ini juga menyoroti pentingnya integrasi teknologi dalam pengelolaan lingkungan perkotaan. Pendekatan berbasis smart city, Internet of Things (IoT), dan Sistem Informasi Geografis (GIS) dapat memperkuat penerapan arsitektur hijau melalui pemantauan energi, pengelolaan limbah, serta perencanaan ruang hijau secara digital dan berkelanjutan. Penelitian ini menggunakan metode kualitatif deskriptif dengan pendekatan studi literatur dan analisis kebijakan. Hasil penelitian menunjukkan bahwa meskipun terdapat kebijakan terkait lingkungan hidup seperti Peraturan Daerah Kota Medan Nomor 2 Tahun 2015 tentang Rencana Tata Ruang Wilayah (RTRW), namun penerapan arsitektur hijau belum terintegrasi secara optimal dalam kebijakan teknis bangunan. Oleh karena itu, diperlukan penyusunan regulasi khusus yang mengatur penerapan arsitektur hijau secara komprehensif di Kota Medan.
PENYEDIAAN LAHAN PARKIR TERHADAP DENSITY KAWASAN DI PONDOK INDAH MALL Muriya; Kerlima Hutagaol; Sri Hartanto; Muriya Muriya; Muhammad Ardiansyah
Journal of Innovation Research and Knowledge Vol. 5 No. 9 (2026): Februari 2026
Publisher : Bajang Institute

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Abstract

Pertumbuhan kendaraan bermotor di kawasan perkotaan menimbulkan masalah serius pada penyediaan lahan parkir. Keterbatasan ruang menyebabkan ketidakseimbangan antara kebutuhan dan kapasitas parkir, yang berdampak pada parkir liar, kemacetan lalu lintas, dan penurunan kualitas pelayanan kawasan. Penelitian ini bertujuan untuk menganalisis kecukupan penyediaan lahan parkir terhadap density kawasan di Pondok Indah Mall (PIM), Jakarta Selatan. Hasil penelitian menunjukkan bahwa PIM memiliki kapasitas 6.995 lot mobil dan 3.961 lot motor, dengan luas parkir 6.316,7 m² dari total bangunan 173.329,1 m². Rasio parkir terhadap luas bangunan adalah 4% untuk mobil dan 2,3% untuk motor. Indeks parkir menunjukkan kondisi overcapacity (mobil 103%, motor 113,6%). Turnover parkir harian mencapai 2,86 kali/hari untuk mobil dan 3,79 kali/hari untuk motor. Model regresi menunjukkan hubungan positif antara density dan kebutuhan parkir, dengan persamaan linear mobil y = 642,98 – 1,88x (R² = 0,167) dan motor y = –127,32 + 2,05x (R² = 0,167). Proyeksi kebutuhan 5 tahun ke depan memperlihatkan defisit makin besar. Penelitian ini menyimpulkan bahwa kapasitas parkir PIM sudah tidak memadai, terutama untuk motor. Rekomendasi teknis meliputi pembangunan gedung parkir vertikal, penerapan smart parking system, tarif progresif, dan integrasi transportasi publik
IMPLEMENTASI PROSEDUR ADMINISTRASI KONTRAK STANDAR (STUDI KASUS PADA PROYEK PRESISI 5 POLRI) Edison Hatoguan Manurung; Kerlima Hutagaol; Dizzy Putrafakhmi
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 1 (2026): SINERGI : Jurnal Riset Ilmiah, January 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i1.2234

Abstract

Contract administration is a crucial aspect of successful construction project implementation, particularly for government projects with high levels of complexity, accountability, and risk. This study aims to analyze the implementation of standard contract administration procedures in the Presisi 5 POLRI Project, identify its level of compliance with applicable regulations, and examine obstacles and improvement efforts. The research method used was a descriptive qualitative method with a case study approach. Data collection techniques included reviewing contract documents, field observations, and interviews with relevant parties. The results indicate that, in general, contract administration procedures have been implemented according to standards, but several obstacles remain in aspects such as documenting work changes, time management, and coordination between parties. This research is expected to provide practical contributions as evaluation material and recommendations for improving the quality of contract administration in government construction projects..
IMPLEMENTASI LEAN CONSTRUCTION UNTUK MENINGKATKAN EFISIENSI PROYEK Edison Hatoguan Manurung; Kerlima Hutagaol; Dizzy Putrafakhmi
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 1 (2026): SINERGI : Jurnal Riset Ilmiah, January 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i1.2235

Abstract

The construction industry in Indonesia still faces various classic problems such as time delays, cost overruns, low labor productivity, and high levels of waste in project implementation. One construction management approach developed to address these issues is Lean Construction. This concept focuses on eliminating waste, increasing value for project owners, and continuously optimizing workflows. This study aims to examine the implementation of Lean Construction in improving construction project efficiency. The research method used was a literature review and conceptual analysis of Lean Construction principles, methods, and tools commonly applied to construction projects. The study results indicate that the application of Lean Construction through waste identification, the Last Planner System, continuous improvement, and collaboration between project parties can improve time efficiency, cost efficiency, and work quality. Therefore, Lean Construction can be used as a strategic approach in construction project management, oriented towards improving overall project performance.
PENGELOLAAN SAMPAH RUMAH TANGGA BERBASIS 3R(REDUCE, REUSE, RECYCLE) Kerlima Hutagaol; Khoirul Azhari Lubis; David Christian; Febbyan Akhfa Panca Andhika; Akhmad Faruq Muhamad Faisal
SINERGI : Jurnal Riset Ilmiah Vol. 3 No. 8 (2026): SINERGI : Jurnal Riset Ilmiah, Agustus 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/sinergi.v3i8.2926

Abstract

The waste management crisis in Jakarta's urban buffer zones, particularly South Tangerang City, reached a critical point due to the total overcapacity of the Cipeucang Final Disposal Site (TPA) in 2024, with waste generation exceeding 1,000 tons per day. This study aims to analyze the urgency of upstream waste management, evaluate the effectiveness of Reduce, Reuse, Recycle (3R) programs, and formulate an effective waste management model for the modern residential area of Bumi Serpong Damai (BSD). The research methodology employs a qualitative descriptive approach through a case study, relying on secondary data analysis (SIPSN reports, local/national regulations) and policy observation of waste processing (2024–2025). The results indicate that approximately 60–65% of waste in BSD originates from the domestic sector, dominated by inorganic packaging and organic food waste. Implementing 3R-based waste management at the cluster level through digital neighborhood-scale waste banks (serving 20–50 households) is proven to reduce residual waste volume sent to the landfill by 30–40%. The study concludes that the most effective model for an independent township is a dual-approach: integrating community-based sorting and recycling at the upstream level (social engineering & Waste Banks) with high-temperature Waste-to-Energy (WtE) or incinerator technology at the downstream level managed by Township Management
Analisis Standar Toilet Difabel pada Rumah Sakit Berdasarkan Regulasi dan Prinsip Desain Universal di Indonesia Kerlima Hutagaol; Dwi Anggun Riani; Deny Prima Prayoga; Ardi Purnomo Murniadi; Atenius Yibili; Arif Rahman Hakim
Ameena Journal Vol. 4 No. 3 (2026): Ameena Journal
Publisher : Yayasan Madinah Al-Aziziyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63732/aij.v4i3.284

Abstract

Accessibility in healthcare facilities is an essential aspect of ensuring equal rights for persons with disabilities to obtain safe, comfortable, and equitable healthcare services. One of the key facilities supporting accessibility is the accessible toilet. However, the implementation of accessible toilets in healthcare facilities continues to face challenges in meeting technical standards and universal design principles. This study aims to analyze the technical standards of accessible toilets in hospitals based on applicable regulations in Indonesia and to evaluate their conformity with universal design principles. The research employed a descriptive qualitative approach through a literature review of laws and regulations, technical standards, reference books, and previous studies related to healthcare accessibility. The analysis was further supported by an evaluation of the implementation of accessible toilet facilities based on as-built drawing data from a hospital in Jakarta. The findings indicate that an accessible toilet should provide a wheelchair maneuvering space with a minimum turning diameter of 150 cm, a door width of at least 90 cm, strategically positioned grab bars, wheelchair-accessible washbasins, anti-slip flooring, and an emergency call button as a safety feature. The evaluation revealed that most components complied with existing regulations; however, several non-conformities were identified, including washbasin height exceeding the recommended standard and the absence of documented emergency call systems. These findings suggest that accessibility standards must be implemented comprehensively to enhance the independence, safety, and comfort of persons with disabilities when accessing healthcare facilities. Therefore, the application of universal design principles and compliance with accessibility regulations are essential for creating inclusive and disability-friendly hospitals.
Co-Authors Agnes Intan Permatasari Ahmad Ziddan Asyaffa Aji Wibowo Kurniawan Akhmad Faruq Akhmad Faruq Akhmad Faruq Muhamad Faisal Aldy Setiawan Ancient Betman Dasuha Angga Febriadi Angga Permana Pasya Anugrah Ramadha Pratama Ardi Purnomo Murniadi Arif Rahman Hakim Atenius Yibili Betman Dasuha Purba Boy Sihite Budi Harta Winata Budi Harta Winata David Christian Dendy Noviandy Deny Prima Prayoga Dizzy Putrafakhmi Dwi Anggun Riani Fahrian Ananda Harahap Fandry Oktosa Fazry Alwy Sirodz Febbyan Akhfa Panca Andhika Frans Rommy Pelleng Hendra Ali Gunawan Henny Pratiwi Adi Ichwan Wahyudi Imron Saripuddin Iqbal Rizki Pranata Kevlin A. Sitorus Pane Khoirul Azhari Lubis Manurung, Edison Hatoguan March German Samosir Maret Jerman Samosir Maret Jerman Samosir Meliana Nur E Meliana Nur Evani Muh Amin Saleh Muhammad Ardiansyah Muhammad Hisyam Batubara Muhammad Ilham Setiawan Muriya Muriya Muriya Muriya Muriya Nanang Andhy S Nanang Andhy Setiawan Pandya Fadil Munpintoro Purnama Ramdan Rachmaiyanti Rachmaiyanti Rachmaiyanti Rachmaiyanti Riza Fahlevi Riza Fahlevi Rizki Hartopik Serepina Tiur Maida Sitti Wardiningsih Slamet Imam Wahyudi Sri Hartanto Sri Hartanto Sri Hartanto Sumadulloh, Sumadulloh Tiodorus Situmorang Tri Mulait Tumanggor, Ojakma Sihar Panaili Yudha Kartika