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All Journal International Journal of Advances in Applied Sciences BULETIN OSEANOGRAFI MARINA POSITRON Jurnal Kelautan : Indonesian Journal of Marine Science and Technology GRADIEN Jurnal Fisika Unand Jurnal Geocelebes JURNAL ENGGANO Jurnal Sumberdaya Akuatik Indopasifik INDONESIAN JOURNAL OF APPLIED PHYSICS Spektra: Jurnal Fisika dan Aplikasinya Jurnal Akuatiklestari Jurnal Pengelolaan Laboratorium Pendidikan Jurnal Pendidikan Fisika dan Teknologi Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Newton-Maxwell Journal of Physics Indonesian Journal of Community Empowerment and Service
Lizalidiawati Lizalidiawati
Jurusan Fisika, FMIPA, Universitas Bengkulu Jl. WR. Supratman Kandang Limun, Bengkulu, 38371
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Journal : Jurnal Pengelolaan Laboratorium Pendidikan

 1 
Rancang Bangun Data Logger Suhu dan Kecepatan Arus Laut Untuk Praktikum Oseanografi S Suwardi; Liza Lidiawati; Erik Ayatullah
Jurnal Pengelolaan Laboratorium Pendidikan Vol. 4, No. 2, Juli 2022
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.4.2.57-65

Abstract

The equipment of experiment and research of oceanography at the Physics Laboratory of the Faculty of Mathematics and Natural Sciences, Bengkulu University are still very limited of type. One of the oceanography equipment is a current meter to measure the temperature and speed of ocean currents. This equipment has limited data recording which is still manual so that it is prone to human error in its measurement. In an effort to overcome the limitations of the current meter above, in this study a temperature and ocean current velocity data logger was developed. This study aims to develop a data logger and test its effectiveness which was carried out in July – November 2021 with four stages. The first stage is design, including hardware design and software design. The second stage is the manufacturing stage, namely the manufacture of data logger hardware following the system block diagram and software development using Arduino software following the system flow diagram. The third stage is the testing stage, which includes the process of testing system performance, calibration and field testing. The fourth stage is evaluation, namely evaluation of system performance, accuracy of measurement results, and refinement of data loggers. Comparative test of the results of temperature measurements using a data logger and current meter experienced a difference between 0.1 - 0.8 oC. While the current velocity measurement using a data logger and current meter shows a difference between 0.3 – 1 m/s. The data logger has been successfully developed and works well, but its accuracy still needs to be improved by replacing the water velocity sensor with a higher sensitivity.
Reduksi Kadar Tembaga (Cu) pada Limbah Cair Proses Etching PCB di Laboratorium Fisika Menggunakan Metode Elektrolisis Suwardi, Suwardi; Lidiawati, Liza; Haidul, Haidul
Jurnal Pengelolaan Laboratorium Pendidikan Vol.7, No.1, Januari 2025
Publisher : UPT Laboratorium Terpadu, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jplp.7.1.32-40

Abstract

Limbah cair di Laboratorium Fisika FMIPA Universitas Bengkulu berasal dari proses pelarutan PCB dalam Praktikum Elektronika Dasar II yang mengandung tembaga dan bersifat asam. Bila limbah ini langsung dilepas ke lingkungan, akan mengakibatkan pencemaran lingkungan. Untuk mereduksi kadar tembaga dalam limbah, perlu dilakukan pengolahan limbah dalam skala laboratorium yang dapat mengurangi bahaya di atas. Penelitian ini menawarkan metode elektrolisis untuk pengolahan limbah cair secara sederhana, mudah, dan murah. Metode elektrolisis adalah metode yang mengubah energi listrik menjadi energi kimia. Penelitian ini dilaksanakan pada Mei – Oktober 2022 di Laboratorium Fisika FMIPA Universitas Bengkulu dengan lima tahapan, yaitu preparasi sampel, merangkai peralatan elektrolisis, proses elektrolisis, analisis spektrofotometer, dan interpretasi data. Tujuan penelitian ini adalah untuk mereduksi kadar tembaga pada limbah cair proses pelarutan PCB dan menentukan parameter elektrolisis (waktu, jarak elektroda, dan tegangan listrik) yang optimum dalam mereduksi kadar tembaga limbah cair. Manfaat penelitian adalah untuk memahami mekanisme metode elektrolisis dalam mereduksi kadar tembaga pada limbah cair proses pelarutan PCB dan mengurangi tingkat bahayanya. Hasil penelitian menunjukkan bahwa elektrolisis berhasil menurunkan kadar tembaga dalam limbah cair dari 3,49 mg/l menjadi 2,87 mg/l dengan efisiensi sebesar 17,76%. Proses elektrolisis juga berhasil mengurangi tingkat keasaman (pH) limbah cair dari 1,21 menjadi 2,53. Kata kunci: limbah cair laboratorium, metode elektrolisis, proses pelarutan PCB
Co-Authors Abrar, Camelia Batun Agustina, Tari Al Ansory, Andre Rahmat Amalia, Isra anjasman, anjasman Anwar, Anang Arif Ismul Hadi Ashar Muda Lubis Banjarnahor, Samuel Kristian Alfredo Berliani, Riska Chinci, Jeniu Edkayasa, Mardho Tillah Elfi Yuliza Elfi Yuliza Elfi Yuliza Erik Ayatullah Fadli, Darmawan Ikhlas Farid, Muchammad Gerry, Muamar Haidul, Haidul Halauddin Halauddin Halauddin Halauddin Halauddin Haryo, Julis Dani Idris, Beni Syakban Irkhos Irkhos Irkhos Irkohs, Irkhos Johan, Septi Lestari, Widya Novia Limbong, Rospita Naomi Nanang Sugianto Norfahmi, Siti Hairunnisa Paisal Edo Priscilla, Viona Azhari Refrizon Refrizon Rida Samdara Riska Ekawita Rosyid, Muhammad Ilham S Suwardi Satriani, Bella Septianingsih, Dwi Silaban, Angeli Sinaga, Jesika Erni ELfrita Siregar, Anjeli Agustina Suhendra Suhendra Suhendra Suwardi Suwardi Suwarsono Suwarsono Tuti Herawati Ulandari, Tresi Pitria Vedina Delima Purba Verojenases, Fascal Wahyuni, Ani Sri Warahma, Ella Yarmanto, Risky Budi Yulisah Dwi Putri