WARINGIN, TRIO PUTRO and Amri, Djulil and Fitria, Syarifa (2024) PEMANFAATAN GENERATOR OZON MENGGUNAKAN METODE KOMBINASI ARCING PLASMA DAN DIELECTRIC BARRIER DISCHARGE (DBD) SEBAGAI PEMBERSIH AIR BILASAN LAUNDRY. Undergraduate thesis, Sriwijaya University.
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Abstract
Penelitian ini melaporkan mengenai efektivitas paparan ozon dalam membersihkan air bilasan laundry dengan menggunakan metode kombinasi arcing plasma dan dielectric barrier discharge (DBD) dalam menghasilkan ozon. Penelitian ini juga menganalisis pengaruh variasi jarak celah antar elektroda batang berbahan stainless steel dengan ukuran 1; 1,5; dan 2mm. Pembangkitan tegangan tinggi menggunakan transformator flyback, yang mampu menghasilkan tegangan keluaran hingga 15 kV. Paparan ozon dilakukan dengan variasi waktu 1 hingga 10 jam. Parameter yang diukur meliputi nilai Potential Hydrogen (pH), Total Dissolved Solids (TDS), Electrical Conductivity (EC) pada air bilasan laundry, serta perubahan warna yang terjadi setelah mengalami paparan ozon. Konsentrasi ozon diukur menggunakan ORP meter, dengan mengaplikasikan tegangan tinggi searah sebesar 6; 7; dan 8 kV untuk setiap variasi jarak celah elektroda pada chamber generator ozon. Hasil eksperimental memperlihatkan konsentrasi ozon tertinggi diperoleh pada chamber dengan menggunakan metode kombinasi arcing plasma dan DBD pada jarak celah 1,5mm dan pengaplikasian tegangan sebesar 7 kV. Paparan ozon selama 10 jam menunjukkan penurunan pada nilai pH dari 7,3 menjadi 6,9; Kemudian nilai TDS dari 99 ppm menjadi 88 ppm, dan nilai EC dari 207 mV menjadi 180 mV. Perubahan warna yang signifikan juga dihasilkan setelah paparan ozon selama 10 jam. Hasil penelitian ini menunjukkan bahwa ozon sebagai agen oksidasi yang kuat, efektif dalam memecah molekul organik kompleks menjadi senyawa yang lebih sederhana dan kurang berbahaya, sehingga dapat meningkatkan kualitas air bilasan laundry. This study reports on the effectiveness of ozone exposure in cleaning laundry rinse water using a combination method of arcing plasma and dielectric barrier discharge (DBD) in producing ozone. This study also analyzes the effect of variations in the gap distance between stainless steel rod electrodes with sizes 1; 1.5; and 2mm. High voltage generation uses a flyback transformer, which is capable of producing output voltages up to 15 kV. Ozone exposure is carried out with a time variation of 1 to 10 hours. The parameters measured include the value of Potential Hydrogen (pH), Total Dissolved Solids (TDS), Electrical Conductivity (EC) in laundry rinse water, as well as color changes that occur after experiencing ozone exposure. Ozone concentration was measured using an ORP meter, by applying a direct high voltage of 6; 7; and 8 kV for each variation of electrode gap distance in the ozone generator chamber. The experimental results showed that the highest ozone concentration was obtained in the chamber using a combination method of arcing plasma and DBD at a gap distance of 1.5mm and applying a voltage of 7 kV. Ozone exposure for 10 hours showed a decrease in pH value from 7.3 to 6.9; then TDS value from 99 ppm to 88 ppm, and EC value from 207 mV to 180 mV. Significant color changes were also produced after 10 hours of ozone exposure. The results of this study indicate that ozone as a strong oxidizing agent, is effective in breaking down complex organic molecules into simpler and less harmful compounds, so it can improve the quality of laundry rinse water.
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