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All Journal Jurnal Techno Bahari Journal of Applied Sciences, Management and Engineering Technology (JASMET) Indonesian Community Journal
DewI, Retno Syahriawati
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Analisa Kerusakan Pipa Bawah Laut Akibat dari Kejatuhan Jangkar Aldara, Desta Rifky; DewI, Retno Syahriawati; Mulananda, Arisessy Maharani
Techno Bahari Vol 9 No 2 (2022)
Publisher : Politeknik Negeri Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52234/tb.v9i2.215

Abstract

Subsea pipelines have several risks that can cause damage to the surrounding environment if damage occurs. Several factors can cause subsea pipeline failure, such as: third party errors, corrosion, design errors, and operational errors. Literature and historical reviews of subsea pipeline failures and incidents indicate that third party factors are responsible for 38% of subsea pipeline failures. Common factors from the category of third party errors that can cause pipeline failure include: fishing activities, commercial ship activities (emergency anchoring, dragged anchor, dropped containers, and ship sinking), and ship construction activities. The main focus of this assessment is the analysis of damage to the subsea pipeline caused by the anchor fall. Damage calculations based on the DNVGL RP F107 standard were compared with simulations using the FEM application. Based on the damage analysis carried out, the underwater pipeline was damaged in the protective concrete layer and experienced dents. Therefore, external protection using the gravel buried method is recommended to protect subsea pipelines from falling anchors. The total investment value required for the installation of the shield is Rp. 4,853,181,463.
Kajian Transport Kontaminan Konservatif dan Non Konservatif di Air Tanah Dangkal dengan Model Analitik Dewi, Retno Syahriawati
Techno Bahari Vol 10 No 1 (2023)
Publisher : Politeknik Negeri Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52234/tb.v10i1.224

Abstract

Solid waste that is not managed properly can be a threat to the environment, such as groundwater contamination caused by leachate. Leachate is the liquid released from landfill due to biological degradation and infiltration rainfall. This research purpose to determine the contaminant transport of chloride (conservative) and COD (non-conservative) contaminants from leachate and to predict groundwater quality for a period used the development of Domenico's analytical model. The samples used for this research were samples of leachate, groundwater, and soil taken around the TPA Kopiluhur, Cirebon City. The leachate quality for the chloride parameter was 52.8 mg/L and the COD parameter was 3200 mg/L. The results of two-dimensional Domenico's analytical model explained that the spread of chloride contaminants reached ± 350 meter in the transverse direction and ± 2500 meter in the longitudinal direction, while the COD contaminants reached ± 150 meter in the transverse direction and ± 150 meter in the longitudinal direction. Prediction of groundwater quality for a period time used one-dimensional of Domenico's analytical model. The result of one-dimensional simulation explained that contaminants concentration will be increases with increasing landfill age. When landfill age reaches 50 years and 80 years, chloride concentrations in five wells of resident are still on the threshold of quality standard while COD concentrations in SAT 1 and SAT 2 exceed the quality standard based on PP No 22 of 2021 for Class 1.
Pembuatan Gerobak Sampah Untuk Menunjang Pengelolaan Sampah di Wilayah Pesisir dan Perkampungan Nelayan Desa Dharma Camplong Samudro, Muhammad Arus; Prasetyo, Taufan; Okvitasari, Astri Rino; Dewi, Retno Syahriawati; Nailah, Fadlilatin; Mulananda, Arisessy Maharani; Ilmah, Aurista Miftahatul; Permata, Tristiandinda; Irmiyana, Triyanti; Musta’in, M.; Aldara, Desta Rifky; Abdullah, Mohammad; Maulidi, Akh.; Munif, Abdul; Sahari, Sahari; Ulmi, Rieos Putrananto; Maulina, Iqlima; Bagaskara, Nur Muhamad
I-Com: Indonesian Community Journal Vol 6 No 1 (2026): I-Com: Indonesian Community Journal (Maret 2026)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v6i1.8565

Abstract

Desa Dharma Camplong merupakan wilayah pesisir yang memiliki potensi strategis sebagai destinasi wisata sekaligus pusat ekonomi berbasis perikanan dan pengolahan hasil laut. Namun, limbah padat yang dihasilkan dari aktivitas masyarakat desa belum optimal pengelolaannya. Tujuan pengabdian masyarakat ini untuk menginisiasi sistem pengelolaan sampah yang terintegrasi melalui difusi ipteks, pendidikan masyarakat melalui sosialisasi, dan partisipasi aktif masyarakat. Metode pelaksanaan meliputi survei lapangan, desain dan pembuatan gerobak dan bak sampah, sosialisasi pengelolaan sampah berbasis masyarakat. serta pembentukan tim pengelola lingkungan. Hasil kegiatan menunjukkan adanya ketersediaan dua unit gerobak angkut dan sepuluh unit bak sampah di titik strategis. Selain itu, adanya kenaikan rata-rata yang signifikan dari seluruh indikator kegiatan sosialisasi dan pelatihan teknis terkait pengelolaan sampah sebesar 52 %. Hal ini menunjukkan bahwa intervensi melalui edukasi berhasil mentransfer informasi secara efektif. Peningkatan tertinggi terjadi pada indikator partisipasi aktif masyarakat dalam pengelolaan sampah seperti keikutsertaan dalam program pengelolaan sampah.
Health Risk Assessment of Microplastic Contamination in Kamoning River Sampang, Madura Okvitasari, Astri Rino; Santoso, Agus Muji; Dewi, Retno Syahriawati; Samudro, Muhammad Arus; Ilmah, Aurista Miftahatul; Faudya, Afifah Bilqis
Journal of Applied Sciences, Management and Engineering Technology Vol 7, No 1 (2026)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2026.v7i1.8778

Abstract

Microplastics have become pervasive contaminants in riverine and coastal environments, raising concern about their implications for ecosystems and communities that rely on these waters. This study investigates microplastic contamination and associated risks in the Kamoning River, Sampang District, Madura, Indonesia, where residential, agricultural and port activities may drive substantial inputs of plastic debris. Surface water samples were collected at six stations representing upstream, midstream, urban, port and estuarine reaches, and analysed for microplastic abundance and morphology using sieving, chemical digestion and microscopic identification. Microplastic particles were quantified as fragments, fibres and films, and total abundances were expressed as particles per litre. To characterize potential risks, a screening-level risk quotient (RQ) approach was applied by comparing estimated exposure concentrations with literature-based reference values for ecological and human health endpoints. The average of microplastic abundances were in the order of 10⁴ particles per litre and increased from upstream to estuarine stations, with fragments as the dominant form at all locations. Calculated RQ values for short-term exposure via water use and local fish consumption ranged from 0.23 to 0.51, indicating low to moderate concern under current conditions. These findings show that the Kamoning River functions as a critical conduit and accumulation zone for microplastics, while present risk levels remain below commonly used thresholds. The study contributes a locally grounded, reproducible framework for linking microplastic abundance data to risk indicators that can support targeted plastic waste management and inform future monitoring and research in Indonesian river systems.
Co-Authors ABDUL MUNIF Abdullah, Mohammad Agus Muji Santoso Akh. Maulidi Aldara, Desta Rifky Aurista Miftahatul Ilmah Bagaskara, Nur Muhamad Faudya, Afifah Bilqis Irmiyana, Triyanti Maulina, Iqlima Mulananda, Arisessy Maharani Musta’in, M. Nailah, Fadlilatin Okvitasari, Astri Rino Permata, Tristiandinda Prasetyo, Taufan Sahari Sahari Samudro, Muhammad Arus Ulmi, Rieos Putrananto