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Andi Devi Sri Anjani
Universitas Islam Negeri Alauddin Makassar
Physics

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PENDUGAAN ZONA AKUIFER DENGAN METODE GEOLISTRIK RESISTIVITY KONFIGURASI SCHLUMBERGER DI DESA JENETALLASA KECAMATAN BANGKALA KABUPATEN JENEPONTO Musriadi Musriadi; Ayusari Wahyuni; Andi Syam Rizal; Sahrul Sani Saparuddin; Andi Devi Sri Anjani
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.131 KB) | DOI: 10.24252/jft.v6i2.11723

Abstract

Springs are a problem in areas where geographic conditions are predominantly hot with low annual rainfall. Water is one of the basic needs for all living things on Earth, both plants, animals and especially humans. If there is a scarcity of spring sources, it is certain that daily activities are very disturbed. Scarcity of springs as happened in Jenetallasa Village greatly influences community activities in the Village. Prolonged drought results in increasingly severe water scarcity that occurs. Based on this problem, a field study was conducted to estimate the aquifer zone. Aquifers are a source of springs located in cavities brought under the surface of the ground which reminisce or flow. Aquifers themselves can be predicted without existence of drilling or excavation. Detection of aquifers can be done using geoelectric methods with different configurations. Our field study this time uses a schlumberger configuration with a length of 120 meters with an approximate depth of 60 meters below ground level.
Pengaruh Inhibitor Alami Dari Biji Nangka Terhadap Laju Korosi Baja Karbon Tinggi Andi Devi Sri Anjani; Ihsan; Rahmaniah
JFT : Jurnal Fisika dan Terapannya Vol 10 No 1 (2023): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v10i1.28548

Abstract

Jackfruit seed has considerable potential to be used as a corrosion inhibitor because its anti-oxidant content can inhibit the corrosion rate of the metal. This study aimed to determine the effect of variations in immersion time on the corrosion rate, the efficiency of jackfruit seed extract in inhibiting the corrosion rate, and the type of corrosion that occurs in high-carbon steel without and with inhibitors. This study used the maceration method to extract jackfruit seeds. It used the weight loss method to determine the value of the corrosion rate in the sample and used SEM testing to determine the type of corrosion that occurred in the sample. This research yielded corrosion rate values ​​in immersion without inhibitor solutions for 10 days, 20 days, and 30 days respectively, namely 263,46 mpy, 365,93 mpy, and 426,92 mpy. Whereas immersion using inhibitor solutions for 10 days, 20 days, and 30 days respectively, resulted in corrosion rate values ​​of 71,62 mpy, 53.41 mpy, and 44.95 mpy. These results resulted in inhibition efficiency values ​​of 72,81%, 85,40%, and 89,47%. The SEM test produced the type of corrosion that occurred in samples without an inhibitor solution, namely pitting corrosion. For immersion in an inhibitor solution, the type of corrosion that occurred was uniform corrosion.
Co-Authors Andi Syam Rizal Ayusari Wahyuni Ihsan Musriadi Musriadi Rahmaniah Rahmaniah Sahrul Sani Saparuddin