ADVANCED OXIDATION PROCESSES (AOPs) MENGGUNAKAN O3/H2O2 DALAM PENGOLAHAN LINDI TPA GRIYO MULYO SIDOARJO

TPA dengan sistem open dumping dapat menyebabkan kuantitas lindi semakin meningkat. Lindi dapat meresap ke dalam tanah dan air tanah secara langsung karena dalam lindi terdapat berbagai senyawa kimia organik dan anorganik serta sejumlah patogen. Salah satu pengolahan lindi secara kimia adalah Advance Oxidation Processes (AOPs) dengan menggunakan ozon dan hidrogen peroksida (O3/H2O2). Tujuan dari penelitian ini adalah mengetahui pengaruh AOPs dengan Ozon (O3) dan pengaruh penambahan hidrogen peroksida (H2O2) terhadap AOPs dengan O3 pada pengolahan lindi TPA Griyo Mulyo. Penelitian ini dilakukan dengan prinsip oksidasi dengan metode Batch. Sampel lindi yang akan dipreparasi, diambil sebanyak 1 Liter dan dimasukkan ke dalam reaktor. AOPs dalam pengolahan lindi TPA Griyo Mulyo menggunakan O3/H2O2.Variasi proses pengolahan lindi menggunakan waktu kontak ozonasi 15 dan 30 menit serta konsentrasi H2O2 10, 20 dan 30 mL. Parameter uji
meliputi BOD5, COD, TSS, dan pH.
Hasil penelitian menunjukkan waktu kontak ozonasi selama 15 menit dapat menurunkan kadar TSS menjadi 56 mg/L, BOD5 menjadi 708,4 mg/L dan COD menjadi 1766,8 mg/L. Pada ozonasi selama 15 menit, penambahan H2O2 sebanyak 30 mL lebih optimal dalam menurunkan nilai BOD5 dan COD dibandingkan dengan penambahan H2O2 sebanyak 10 mL. Penambahan H2O2 sebanyak 30 mL dapat menurunkan kadar BOD5 menjadi 726,6 mg/L dan COD menjadi 1799 mg/L. Penurunan TSS yang optimal terdapat pada penambahan H2O2 sebanyak 10 mL dengan ozonasi selama 15 menit yaitu 81,2 mg/L. Penambahan H2O2 sebanyak 20 mL dengan ozonasi selama 30 menit memiliki penurunan TSS, BOD5 dan COD yang lebih optimal dibanding tanpa penambahan H2O2. Ozonasi selama 30 menit dengan penambahan H2O2 sebanyak 20 mL dapat menyisihkan kadar TSS menjadi 147 mg/L, BOD5 menjadi 323,4 mg/L dan COD 788,2 mg/L. Ozonasi selama 15 menit memiliki % efisiensi penyisihan TSS sebesar 67%, BOD5 sebesar 78% dan COD sebesar 83%. Pada ozonasi selama 15 menit, penambahan H2O2 sebanyak 30 mL memiliki % efisiensi penyisihan BOD5 dan COD yang lebih optimal dibandingkan dengan penambahan H2O2 sebanyak 10 mL. Penambahan H2O2 sebanyak 30 mL memiliki % efisiensi penyisihan BOD5 sebesar 77,4% dan COD sebesar 83,2%. Persentase Penurunan TSS yang optimal terdapat pada penambahan H2O2 sebanyak 10 mL dengan ozonasi selama 15 menit yaitu sebesar 52,2%. Penambahan H2O2 sebanyak 20 mL dengan ozonasi selama 30 menit memiliki % efisiensi penurunan TSS, BOD5 dan COD yang lebih optimal
dibanding tanpa penambahan H2O2. Ozonasi selama 30 menit dengan penambahan H2O2 sebanyak 20 mL memiliki % efisiensi penyisihan TSS sebesar 13,5 %, BOD5 sebesar 89,9% dan COD sebesar 92,2%. Semua kondisi menunjukkan pH yang sesuai dengan baku mutu.
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Landfill with sistem open dumping can cause the quantity of leachate to increase. Leachate can seep into the soil and groundwater directly because in leachate there are various
organic and inorganic chemical compounds as well as a number of pathogens. One of the chemical leachate treatments is the Advance Oxidation Process (AOPs) using ozone and hydrogen peroxide (O3/H2O2). The purpose of this study was to determine the effect of Ozone-based AOPs (O3) and the effect of adding hydrogen peroxide (H2O2) on O 3-based AOPs on griyo Mulyo landfill leachate processing. This research was conducted on the principle of oxidation by the Batch method. A sample of leachate to be prepared, is taken as much as 1 liter and put into the reactor. AOPs in griyo mulyo landfill leachate processing use O3/H2O2. Variations in the leachate processing process use an ozonation contact time of 15 and 30 minutes and h2O2 concentrations of 10, 20 and 30 mL. Test parameters include BOD5, COD, TSS, and pH.
The results showed that the contact time of ozonation for 15 minutes can reduce TSS levels to 56 mg / L, BOD5 to 708.4 mg / L and COD to 1766.8 mg / L. In ozonation for 15 minutes, the addition of H2O2 as much as 30 mL is more optimal in reducing the value of BOD5 and COD compared to the addition of H2O2 as much as 10 mL. The addition of H2O2 as much
as 30 mL can reduce BOD5 levels to 726.6 mg / L and COD to 1799 mg / L. Optimal TSS reduction is found in the addition of H2O2 as much as 10 mL with ozonation for 15 minutes,
which is 81.2 mg / L. The addition of H2O2 as much as 20 mL with ozonation for 30 minutes has a more optimal decrease in TSS, BOD5 and COD than without the addition of H2O2. Ozonation for 30 minutes with the addition of H2O2 as much as 20 mL can set aside TSS levels to 147 mg / L, BOD5 to 323.4 mg / L and COD 788.2 mg / L. Ozonation for 15 minutes has a % efficiency removal TSS of 67%, BOD5 of 78% and COD of 83%. In ozonation for 15 minutes, the addition of H2O2 as much as 30 mL has a more optimal BOD5 and COD removal
efficiency compared to the addition of H2O2 as much as 10 mL. The addition of H2O2 as much as 30 mL has a % removal efficiencyBOD5 of 77.4% and COD of 83.2%. The optimal decrease in TSS was found in the addition of H2O2 by 10 mL with ozonation for 15 minutes, which was 52.2%. The addition of H2O2 as much as 20 mL with ozonation for 30 minutes has a more optimal efficiency of reducing TSS, BOD5 and COD than without the addition of H2O2. Ozonation for 30 minutes with the addition of H2O2 as much as 20 mL has a % efficiency
removal TSS of 13.5 %, BOD5 of 89.9% and COD of 92.2%. All conditions show a pH that is in accordance with quality standards.