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All Journal Jurnal Pendidikan Teknologi dan Kejuruan Teknomekanik SIMBOL : Jurnal Administrasi Publik dan Pemerintahan
Wijaya, Arie
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Study of mixing purple sweet potato and turmeric extract as green corrosion inhibitor for API-5L in NaCl 3.5% environment Wijaya, Arie; Soedarsono, Johny Wahyuadi; Laksana, Aldi Putra
Jurnal Pendidikan Teknologi Kejuruan Vol 4 No 4 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v4i4.21823

Abstract

Green inhibitors have become a major option for corrosion prevention since people are more aware of environmental damage. It is true that chemical inhibitors are more powerful at preventing corrosion, but its side effects are very harmful to the environment. Purple sweet potato (Ipomoea batatas L) in single use has been proven as an active inhibitor for certain applications. To improve this property, purple sweet potato is used as a mixed with other plants that contain antioxidant agents, such as ginger, melinjo, turmeric, jeera, etc. This paper discussed the effect of applying mixed extract of purple sweet potato with turmeric (Curcuma longa) as a green inhibitor to corrosion rate of API 5L steel in a 3.5% NaCl environment. Turmeric extract contains curcumin and kaempferol antioxidants while purple sweet potato extract contains antocyanin antioxidants. Corrosion rates were analyzed based on weight loss and polarization methods. The results showed the highest inhibitor efficiency was 82.54% achieved by 16 ml of turmeric mixed with 2 ml of purple sweet potato, and the optimum inhibitor efficiency was 74.2% achieved by 8 ml of turmeric mixed with 6 ml of purple sweet potato.
Quantitative Risk-Based Inspection on Gas Riser Pipelines at Offshore Facilities Asfar, Mhd. Ibkar Yusran; Soedarsono, Johny Wahyuadi; Wijaya, Arie; Aditiyawarman, Taufik; Soelistiyono, Dony; Ramadhan, Romal
Teknomekanik Vol. 4 No. 2 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.201 KB) | DOI: 10.24036/teknomekanik.v4i2.11172

Abstract

Numerous pipeline failures have occurred due to the drastic increase in oil and gas product distribution pipelines over the last three decades. Corrosion is a significant factor in the failure of offshore gas pipelines. It is necessary to maintain the integrity of the offshore transmission system, one of which is the riser, for the product to be adequately distributed. The purpose of this study is to ensure the riser's reliability by conducting a risk assessment of the probability and consequences of equipment failure, mitigating the impact of failure risk, and developing a more optimal inspection plan. The API 5L Grade X60 gas riser pipe is the subject of this study. The quantitative Risk-Based Inspection (RBI) technique was used in 2016 following the API 581 standard. This quantitative approach is founded on a numerical value model constructed using validated operational data and inspection results. The risk assessment indicates that the gas riser pipelines will have a high-risk level (5D) for the splash zone segment and a medium-risk level (2D) for the above-and below-water segments. The recommended inspection plan for the gas riser pipeline is one year after the risk-based inspection assessment.
KINERJA PUSTAKAWAN DALAM PEMBERIAN PELAYANAN PUBLIK PADA DINAS PERPUSTAKAAN DAN KEARSIPAN PROVINSI SUMATERA SELATAN Hendrasmo, Ignasius; Wijaya, Arie
Jurnal Administrasi Publik dan Pemerintahan Vol. 4 No. 1 (2025): SIMBOL : Jurnal Administrasi Publik dan Pemerintahan
Publisher : LPPM STISIP IMAM BONJOL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55850/simbol.v4i1.189

Abstract

This research aims to analyze and explain the performance of librarians in providing public services at the South Sumatra Province Library and Archives Service and explain the factors inhibiting the performance of librarians in providing public services. The low competency of human resources for librarians and the lack of number of librarians in the Soeman HS public library which is managed by the South Sumatra Province Library and Archives Service means there is an imbalance in the number of services available and the amount of workload. The research method used is a qualitative approach. Data collection techniques include interviews, observation and documentation. while the research informants included by the researchers were 12 (twelve) people. The results of this research explain that the performance of librarians in providing public services at the South Sumatra Province Library and Archives Service is quite good in accordance with their main duties and functions. However, in the context of Human Resources, there is still a need for qualified functional librarians through appointments made by the Regional Government or from librarian training with the aim of improving services at the South Sumatra Province Library and Archives Service.
Study of mixing purple sweet potato and turmeric extract as green corrosion inhibitor for API-5L in NaCl 3.5% environment Wijaya, Arie; Soedarsono, Johny Wahyuadi; Laksana, Aldi Putra
Jurnal Pendidikan Teknologi Kejuruan Vol 4 No 4 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v4i4.21823

Abstract

Green inhibitors have become a major option for corrosion prevention since people are more aware of environmental damage. It is true that chemical inhibitors are more powerful at preventing corrosion, but its side effects are very harmful to the environment. Purple sweet potato (Ipomoea batatas L) in single use has been proven as an active inhibitor for certain applications. To improve this property, purple sweet potato is used as a mixed with other plants that contain antioxidant agents, such as ginger, melinjo, turmeric, jeera, etc. This paper discussed the effect of applying mixed extract of purple sweet potato with turmeric (Curcuma longa) as a green inhibitor to corrosion rate of API 5L steel in a 3.5% NaCl environment. Turmeric extract contains curcumin and kaempferol antioxidants while purple sweet potato extract contains antocyanin antioxidants. Corrosion rates were analyzed based on weight loss and polarization methods. The results showed the highest inhibitor efficiency was 82.54% achieved by 16 ml of turmeric mixed with 2 ml of purple sweet potato, and the optimum inhibitor efficiency was 74.2% achieved by 8 ml of turmeric mixed with 6 ml of purple sweet potato.
Co-Authors Aditiyawarman, Taufik Asfar, Mhd. Ibkar Yusran Hendrasmo, Ignasius Johny Wahyuadi Soedarsono Laksana, Aldi Putra Ramadhan, Romal Soelistiyono, Dony