Fadillah, Alfina (2023) Evaluasi Kinerja Sistem Bioreaktor Membran Pada Instalasi Pengolahan Lindi (Studi Kasus: TPA Supit Urang, Kota Malang). Other thesis, Institut Teknologi Sepuluh November.
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Abstract
Tempat Pembuangan Akhir (TPA) Supit Urang merupakan tempat pemrosesan akhir sampah yang terletak di Kota Malang dengan menggunakan metode sanitary landfill sejak tahun 2021. Sanitary landfill memerlukan fasilitas pengolahan air lindi. Fasilitas ini sangat penting untuk mengolah dampak lingkungan seperti emisi gas metana yang berkontribusi terhadap efek gas rumah kaca dan air lindi dari sanitary landfill. Instalasi Pengolahan Lindi (IPL) TPA Supit Urang menggunakan teknologi bioreaktor membran dengan konfigurasi sidestream dan aliran cross-flow. Penelitian ini dilakukan untuk mengevaluasi kinerja sistem bioreaktor membran dengan melakukan pengambilan sampel air lindi TPA Supit Urang dan menganalisis parameter lingkungan yang terkandung pada air lindi.
Data primer yang dibutuhkan pada penelitian diperoleh dari observasi di lapangan dan penelitian di laboratorium. Observasi di lapangan bertujuan untuk memantau proses pengolahan air lindi pada bioreaktor membran untuk mengetahui fenomena yang terjadi selama proses pengolahan air lindi. Sedangkan, penelitian di laboratorium dilakukan untuk menganalisis parameter utama dan parameter tambahan pada air lindi TPA Supit Urang. Parameter utama yang digunakan adalah analisis Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), amonium (NH4-N), dan Total Suspended Solid (TSS). Parameter tambahan yang digunakan adalah pH, dissolved oxygen (DO), SVI, MLSS, dan MLVSS. Analisis kedua parameter tersebut dilakukan selama dua bulan. Penelitian di laboratorium juga bertujuan untuk mengetahui penyebab terjadinya timbulan foaming pada bioreaktor.
Hasil penelitian menunjukkan bahwa kinerja bioreaktor membran menurunkan parameter adalah COD sebesar 97%, BOD sebesar 99%, NH4-N sebesar 100%, dan TSS sebesar 97%. Sehingga, sistem ini mampu untuk menghasilkan efluen yang memenuhi baku mutu. Kemudian, hasil penelitian juga menemukan penyebab dan pencegahan permasalahan timbulan foaming yang terjadi pada bioreaktor membran. Timbulan busa dapat disebabkan oleh beberapa faktor operasional yang terlalu tinggi antara lain HRT, SRT, dan DO. Penyebab lain diperkirakan nilai rasio F/M yang terlalu rendah. Pencegahan timbulan busa selain penggunaan antifoam atau defoamer, perlu dilakukan perubahan nilai parameter operasional antara lain menurunkan SRT menjadi 20-50 hari dan mengatur nilai DO menjadi >2 mg/L untuk tangki denitrifikasi dan 2-4 mg/L untuk tangki nitrifikasi. Selain itu, total biaya operational and maintainance (O&M) dari sistem bioreaktor membran pada tahun 2023 adalah Rp 3.474.632.879.
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Supit Urang Landfill is a final waste processing site in Malang City that has been using the sanitary landfill method since 2021. Sanitary landfill requires a leachate treatment facility. This facility is essential to treat environmental impacts such as methane gas emissions contributing to the greenhouse gas effect and leachate from sanitary landfills. The Supit Urang Landfill leachate treatment plant used membrane bioreactor technology with sidestream and cross-flow configurations. This research is conducted to evaluate the performance of the membrane bioreactor system by sampling the leachate of the Supit Urang landfill and analyzing the environmental parameters contained in the leachate.
The primary data required in the research was obtained from field observations and laboratory research. Field observation aimed to monitor the leachate treatment process in the membrane bioreactor to discover the phenomena occurring during the leachate treatment process. Meanwhile, laboratory research is conducted to analyze the main and additional parameters in the Supit Urang landfill leachate. The main parameters used were chemical oxygen demand (COD), biological oxygen demand (BOD), ammonium (NH4-N), and total suspended solid (TSS) analysis. Additional parameters used were pH, dissolved oxygen (DO), SVI, MLSS, and MLVSS. The analysis of both parameters is conducted for two months. Laboratory research also aimed to determine the cause of foaming in the bioreactor.
The results showed that the membrane bioreactor's performance reduced COD parameters by 97%, BOD by 99%, NH4-N by 100%, and TSS by 97%. This system can produce effluent that meets the quality standards based on this performance. Then, the study's results also found the causes and prevention of foaming problems in membrane bioreactors. Foaming can be caused by several operational factors that are too high, including HRT, SRT, and DO. Another cause is estimated to be the F/M ratio value that is too low. For prevention of foam generation other than the use of antifoam or defoamer, it is necessary to change the value of operational parameters, including reducing the SRT to 20-50 days and setting the DO value to >2 mg/L for the denitrification tank and 2-4 mg/L for the nitrification tank. In addition, the total operational and maintenance (O&M) cost of the membrane bioreactor system in 2023 is IDR 3,474,632,879.
Item Type: | Thesis (Other) |
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Uncontrolled Keywords: | Antifoam, Foaming, Leachate, Leachate Treatment Plant, Membrane Bioreactor |
Subjects: | T Technology > TD Environmental technology. Sanitary engineering T Technology > TD Environmental technology. Sanitary engineering > TD795.7 Sanitary landfills. Leachate--Purification. |
Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis |
Depositing User: | Alfina Fadillah |
Date Deposited: | 28 Jul 2023 14:14 |
Last Modified: | 28 Jul 2023 14:14 |
URI: | http://repository.its.ac.id/id/eprint/99937 |
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