Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Pengolahan lindi yang efektif sangat penting untuk mencegah dampak negatifnya terhadap lingkungan dan manusia. Dalam penelitian ini, digunakan Teknik Advanced Oxidation Process (AOPs) berbasis ozonasi dengan Reaktor Plasma Dielectric Barrier Discharge (DBD) Ozone Nanobubble untuk mendegradasi lindi. Udara diinjeksikan ke dalam reaktor, dan melalui reaksi dengan plasma, radikal hidroksil (•OH) dan ozon (O3) dihasilkan sebagai oksidator limbah. Penelitian ini bertujuan untuk menguji efektivitas metode dan menganalis pengaruh laju alir gas dan tegangan reaktor terhadap proses pengolahan lindi. Hasil setelah pengolahan selama 60 menit, terjadi pengurangan Total Suspended Solids (TSS) sebesar 100%, Chemical Oxygen Demand (COD) sebesar 95,5%, Biological Oxygen Demand (BOD) sebesar 71,95%, dan penurunan pH hingga 57,02%. Namun, terjadi peningkatan pada nilai Total Dissolved Solids (TDS) sebesar 436,13% dan Nitrat sebesar 75,27%. Laju alir ditemukan berpengaruh terhadap pH, TSS, COD, dan Nitrat. Sedangkan, tegangan berpengaruh terhadap pH, COD, dan Nitrat. Pada uji TDS ditemukan tidak dipengaruhi oleh laju alir dan tegangan. ......Effective leachate treatment is essential to prevent its negative impact on the environment and humans. In this research, ozonation-based Advanced Oxidation Process (AOPs) Techniques were used with an Ozone Nanobubble Dielectric Barrier Discharge (DBD) Plasma Reactor to degrade leachate. Injected air will react with the plasma thus generating hydroxyl radicals (OH) and ozone (O3) as waste oxidizing agents. This study aims to test the effectiveness of the method and to analyse the influence of gas flow rate and reactor voltage on the leachate treatment process. The results after processing for 60 minutes, there was a reduction in Total Suspended Solids (TSS) by 100%, Chemical Oxygen Demand (COD) by 95.5%, Biological Oxygen Demand (BOD) by 71.95%, and a decrease in pH up to 57.02%. However, there was an increase in the Total Dissolved Solids (TDS) value of 436.13% and Nitrate of 75.27%. Flow rate was found to have an effect on pH, TSS, COD, and Nitrate. Meanwhile, the voltage affects the pH, COD, and Nitrate. In the TDS test it was found that it was not affected by flow rate and voltage.

Abstrak :
Senyawa polutan berbahaya dalam limbah cair industri berupa diklorofenol (DCP) didegradasi dengan menggunakan plasma ozon nanobubble untuk menyisihkan atom klorin yang terdapat dalam beberapa isomer berdasarkan letaknya pada cincin aromatik. Teknologi yang digunakan untuk menyisihkan DCP adalah Reaktor Plasma Dielectric Barrier Discharge (DBD) yang dikombinasikan dengan teknologi nanobubble karena dinilai memiliki tingkat efisiensi energi tinggi. Reaktor ini menerapkan proses oksidasi lanjutan (AOP) dengan mengandalkan spesi aktif kuat yaitu radikal •OH dan juga ozon (O3). Penelitian dilakukan menggunakan limbah sintetis 2,4-DCP dan 2,5-DCP dengan konsentrasi 50 ppm yang dipaparkan ozon nanobubble selama 30 menit dengan memvariasikan jenis fluida gas, laju alir gas, tegangan reaktor, dan pH limbah cair. Berdasarkan percobaan, persentase penyisihan DCP paling tinggi yaitu 2,4-DCP sebesar 100% dan 2,5-DCP sebesar 99,88% pada kondisi operasi pH larutan 10, tegangan reaktor 17 kV, dan laju alir oksigen sebesar 5 L/min. ......Hazardous pollutant compound in industrial wastewater in the form of dichlorophenol (DCP) is degraded using plasma ozone nanobubble to remove chlorine atoms that varies as multiple isomers according to the chlorine atom position in the aromatic ring. The technology used to eliminate DCP levels in wastewater is Dielectric Barrier Discharge (DBD) plasma reactor combined with nanobubble technology that has high efficiency. This reactor implements advanced oxidation processes (AOPs) by relying on strong active species namely •OH radical and ozone (O3). This study is done by exposing 50 ppm 2,4-DCP and 2,5-DCP synthetic wastewater to plasma ozone nanobubble for 30 minutes by varying the type of gas fluid, gas flowrate, reactor voltage, as well as solvent’s pH. Based on experiments, the highest percentage of DCP degradations are 100% for 2,4-DCP and 99,88% for 2,5-DCP with operating conditions at solvent’s pH of 10, 17 kV of reactor voltage, and oxygen flowrate of 5 L/min.