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Mengatasi Limpasan Banjir Dengan Normalisasi Saluran Drainase Di Kelurahan Baru Ilir Kota Balikpapan Sulardi Sulardi; Lukman; Nuruddin Kafy El Ridlo; Agus Sugianto; Gunaedy Utomo
Abdimas Universal Vol. 3 No. 1 (2021): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Balikpapan (LPPM UNIBA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/abdimasuniversal.v3i1.101

Abstract

Limpasan banjir ke jalan raya di perkotaan secara umum disebabkan oleh ketidak sesuai saluran drainase dengan volume limpasan air hujan dan disebabkan oleh saluran drainase yang rusak, tertutup semak belukar dan sedimen lumpur serta terhalang oleh bangunan. Kegiatan pengabdian kepada masyarakat ini adalah sebagai perwujudan keterlibatan pergutuan tinggi, dunia usaha, dan masyarakat dalam mengatasi permasalahan yang terjadi di lingkungan masyarakat, khususnya kawasan hunian dan jalan yang tergenang limpasan banjir. Pelaksanaan pengabdian masyarakat ini berupa bimbingan teknik, konsultasi dan komunikasi sehingga keterlibatan masyarakat setempat dalam pekerjaan normalisasi sluran drainase dapat maksimal. Hasil kegiatan pengabdian kepada masyarakat menunjukan bahwa masyarakat setempat antusias dapat dilibatkan pada kegiatan proyek dilingkungannya dan antusias mengikuti bimbingan teknis sehingga dapat melakukan pekerjaan secara mandiri. Dari hasil kegiatan kagiatan pengabdian kepada masyarakat ini pula telah terwujud partisipasi perguruan tinggi, dunia usaha dan masyarakat setempat secara bersama-sama menyelesaikan permasalahan dilingkungan perkotaan, khususnya masalah banjir di Jalan Suprapto, Kota Balikpapan.      
KAJIAN MATERIAL SEDIMEN PANTAI BALIKPAPAN UNTUK MENGETAHUI VARIASI UKURAN BUTIR PARTIKEL PASIR (SAND) SEDIMEN Rohima Sera Afifah; Karmila Karmila; Nuruddin Kafy El-Ridlo
INFO-TEKNIK Vol 22, No 2 (2021): INFOTEKNIK VOL. 22 NO. 2 DESEMBER 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v22i2.12391

Abstract

Along the Balikpapan Beach, there are abundant sand-sized sediment particles. Sand is one of the unconsolidated sediment grains based on fractions on the Wentworth Scale. Unconsolidated Sediment is defined as Loose Material and/or sedimentary rocks that is not yet solid. Balikpapan Beach, based on the Regional Geological Map of Balikpapan sheet, formed the Alluvium Formation (abbreviated as Qa) of the Holocene Epoch, Quaternary. Alluvium formation (Qa) has an arrangement of rocks in the form of pebbles, gravel, sand, and clay. Samples of Unconsolidated Sediment or loose material and sedimentary rocks that is not yet solid are determined for grain size variations using the Sieving method. The Seiving method or Sieve Test is a method for determining the size of the grains which will then be viewed on a scale and followed by the amount of grain size data that will be presented in graphical form to facilitate the type of grain size that dominates. The research focused on how the grain size on Balikpapan Beach based on the Wentworth Scale and Sorting data after the Sieve Test. Sieve Test results measured Mesh#10, Mesh#20, Mesh#40, Mesh#60, Mesh#120, Mesh#200 and Filter Analysis of the relationship between Filter Diameter and Retained Percentage as follows: Granule by 3.53%, Sand (Very Coarse Sand by 3.53%, Coarse Sand by 4.75%, Medium Sand by 13.26%, Fine Sand by 66.26%, Very Fine Sand by 5.15%) and Coarse Silt by 3.35%. Therefore, particles in the area of research with the Sieve Test were dominated by Fine Sand particles. Fine Sand with grain size 0.125 – 0.25 mm tested with a filter diameter of 0.125 mm got a Retained Weight of 331.29 gr, Retained Weight Precentage of 66.26%.
SIMULASI DISTRIBUSI TEKANAN INJEKSI PADA RESERVOIR MENGGUNAKAN METODE FINITE DIFFERENCE Jamaluddin Jamaluddin; Nuruddin Kafy El-Ridlo; Hamriani Ryka; Maria Maria
JURNAL GEOCELEBES Vol. 4 No. 1: April 2020
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v4i1.7439

Abstract

The modeling of reservoir injection pressure distribution is very important to perceive reservoir management, especially in estimating the pushing mechanism. The modeling of reservoir injection pressure distribution was carried out by applying the analytic equation of fluid flow to the porous media of Darcy's law and transformed to a finite difference numerical equation which then used Neumann boundary conditions. The parameters used in the modeling were: permeability, average layer thickness, porosity, acceleration of gravity, viscosity, and area’s width. Based on the results of modeling, the injection pressure distribution area decreased as injection pressure rate increased. This decrease occurred due to an imbalance between the volume of reservoir fluid produced by the volume of water from the aquifer that replaced the reservoir, caused emptying. From the results of the modeling the amount of oil production, obtained from the remaining oil reserves to the initial oil acquisition in the reservoir after the process of pressure maintenance, could be found.
HAZARD IDENTIFICATION AND PREVENTION METHODS ON WORK IN CONFINED SPACES Sulardi Sulardi; Nuruddin Kafy El-Ridho
IDENTIFIKASI Vol 5 No 2 (2019): IDENTIFIKASI
Publisher : Program Studi D-IV K3

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this study is to provide an overview of potential hazards and safe work procedures in the confined space area of ​​the working of the oil and gas industry. The research method used was the application research method with a case study approach in the oil and gas industry in Balikpapan. The results showed that the potential danger in the room was limited by the danger of lack of oxygen, fire, poisoning explosion, irritation, static electricity, mechanical energy, extreme room temperature, dehydration, insufficient air circulation, slippery surfaces and ergonomic hazards. Safe working procedures in confined spaces were ensuring a safe working environment, use of PPE and work safety equipment, isolation of mechanical equipment, cleaning of gases and liquids, adequate air ventilation and adequate communication systems. The results of the study also recommended supporting the success of work in the confined space area to always be aware of the possibility of toxic gas, low oxygen concentrations and excess, the danger of work equipment and workers equipped with a gas tester.
Pengaruh Trial Focal Depth terhadap Kedalaman Sumber Gempa Menggunakan Hypo71pc (Studi Kasus Kegempaan di Sulawesi Utara) A.M. Miftahul Huda; Nuruddin Kafy El-Ridlo
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 10, No 01 (2020): IJAP Volume 10 ISSUE 01 YEAR 2020
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.069 KB) | DOI: 10.13057/ijap.v10i01.30176

Abstract

Pemodelan hiposenter kejadian gempa telah dilakukan di wilayah Sulawesi utara menggunakan perangkat HYPO71PC. Proses penentuan posisi hiposenter memperhatikan berbagai aspek referensi, salah satunya adalah penggunaan kedalaman fokal uji. Penelitian ini akan membahas pengaruh elemen tersebut dalam memberikan hasil iterasi. Data kegempaan berasal dari stasiun Badan Meteorologi Klimatologi dan Geofisika dari tahun 2008-2018 dengan ketentuan magnitudo lebih dari 6. Metode pengujian dilakukan secara random dengan memperhatikan data kedalaman terlapor. Hasil pengujian didapatkan pengaruh yang relatif besar terhadap data yang memberikan luaran dan kesesuaian dengan posisi kejadian gempa serta kedalamannya. Efek yang ditimbulkan oleh kedalaman fokal uji mempengaruhi proses iterasi secara kuantitas pemrosesan data. Berdasarkan nilai kesalahan root mean square dan keunikan luaran didapatkan 5 buah kejadian dengan kondisi terbaik.
Adsorption of Lubricant Waste by Porous Materials: A Review Wathi, Ayu Fahimah Diniyah; Dewi, Shofrina Surya; El-Ridlo, Nuruddin Kafy; Wijayanti, Sukma Wahyu; Masbukhin, Faizal Akhmad Adi; Bikharudin, Ahmad
Walisongo Journal of Chemistry Vol 6, No 1 (2023): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v6i1.14998

Abstract

The rapid development of technology today cannot be separated from the role of various kinds of machines to produce or increase the use value of an item. The more the engine operates, the more lubricant is used. Lubricants are included in the category of B3 waste (Toxic Hazardous Materials) so that they have a negative impact on the environment. Nearly 50% of all mineral lubricants enter the environment and cause irreparable environmental damage due to direct contact with water and soil. One of the efforts that can be done to reduce the B3 content in used lubricants is adsorption using a porous adsorbent. This study aims to see the relationship between the physical and chemical properties of the adsorbent with the physical and chemical properties of the adsorbate. This research was conducted by studying the literature of scientific articles with related topics. The results showed that some contaminants such as organic compounds, inorganic species, soot, hydrocarbons, and ash can be adsorbed with various adsorbents, namely modified sawdust, bentonite, fly ash, activated carbon, activated alumina, and zeolite Y derived from kaolin.
STUDI LUMPUR PEMBORAN MENGGUNAKAN CANGKANG TELUR UNTUK MENGETAHUI RHEOLOGY LUMPUR PEMBORAN PADA TRAYEK 8-1/2´´ HOLE UJI LABORATORIUM Rante, Wandi Allo; Afifah, Rohima Sera; Kurmaselia, Aprilino Alfa; El Ridlo, Nuruddin Kafy
PETROGAS: Journal of Energy and Technology Vol 6, No 1 (2024): MARCH
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v6i1.165

Abstract

This study examines the use of water-based mud (WBM) in well drilling. It specifically focuses on enhancing the rheology of WBM that meets API 13A specifications by incorporating calcium carbonate (CaCO3) at concentrations of 2.5% and 7.5%. The primary objective is to compare the original rheology of the WBM adhering to API 13A standards with the modifications following the addition of CaCO3. The methodology employed includes laboratory tests to gather data, testing mixtures of the original mud with added CaCO3, and evaluating the impact on mud properties such as viscosity and density. The results are expected to determine the optimal additive concentration to improve mud performance in drilling operations.
Variasi Penambahan Soda Kue dan PAC-R terhadap Kontaminan Gypsum pada Sifat Rheology Lumpur Pemboran Febrian, Ricky; Sulardi, Sulardi; Ridlo, Nuruddin Kafy El
Indonesian Research Journal on Education Vol. 5 No. 4 (2025): Irje 2025
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/irje.v5i4.3195

Abstract

Permasalahan yang terjadi adalah sirkulasi lumpur pemboran terkontaminasi oleh senyawa gypsum. Kontaminan gypsum berdampak menurunkan sifat plastic viscosity, yield point, dan peningkatan nilai filtrate loss, yang dapat menghambat efisiensi pemboran. Injeksi bahan tambah NaHCO3 dan PAC-R secara bersamaan dengan dosis 0,5%, 0,75% dan 1% seluruhnya terbukti dapat memperbaiki sifat fisik lumpur pemboran yang telah terkontaminasi gypsum. Keduanya dapat meningkatkan nilai rheologi plastic viscosity, yield point, gel strength, menurunkan nilai filtrasi dan memperbaiki stabilitas pH pada lumpur pemboran. Semakin besar kontaminan gypsum semakin besar pula dosis injeksi yang diperlukan. Hasil penelitian ini merekomendasikan penggunaan dosis injeksi NaHCO3 dan PAC-R secara proporsional untuk memperbaiki sifat rheology lumpur pemboran yang terkontaminasi gypsum.