Huda, Ravika (2017) Pengolahan Lindi dengan Proses Aerobik-Anoksik Menggunakan Moving Bed Biofilm Reactor untuk Menurunkan Konsentrasi Organik dan Nitrogen. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Lindi mengandung senyawa organik dan nitrogen yang tinggi. Salah satu pengolahan yang dianggap efektif untuk pengolahan lindi adalah Moving Bed Biofilm Reactor (MBBR). MBBR merupakan pengembangan dari proses activated sludge dan fluidized bed reactor. MBBR menggunakan media sebagai tempat melekatnya mikroorganisme. Penelitian ini bertujuan untuk menentukan kemampuan MBBR untuk menurunkan konsentrasi organik dan nitrogen pada lindi, dengan variasi konsentrasi lindi dan durasi proses aerobik- anoksik.
Penelitian ini merupakan penelitian skala laboratorium. Sampel Lindi berasal dari TPA Ngipik Gresik dan biomassa berasal dari return activated sludge unit clarifier IPLT Keputih. Reaktor penelitian berjumlah tiga buah yang dioperasikan secara batch dengan konsentrasi COD lindi yang berbeda-beda. Saat proses aerobik aerator dan pompa submersible dinyalakan, sedangkan saat proses anoksik hanya pompa submersible yang dinyalakan. Kapasitas pengolahan MBBR yang digunakan adalah 5 L dan 1 L media Kaldness tipe 1 (K1). Tahap penelitian terdiri dari analisis karakteristik awal lindi dan lumpur, seeding dan aklimatisasi, dan penelitian utama. Pada penelitian ini digunakan dua variabel, yaitu konsentrasi COD lindi dan durasi proses aerobik-anoksik. Variasi konsentrasi COD lindi yang digunakan adalah 2000 mg/L, 3500 mg/L, dan 5000 mg/L. Sedangkan untuk variasi durasi proses aerobik-anoksik untuk satu siklus (dalam jam) adalah 9-36, 22,5-22,5, dan 36-9. Waktu yang dibutuhkan untuk setiap variasi durasi proses aerobik-anoksik adalah 12 hari yang terdiri dari enam siklus. Parameter yang dianalisis yaitu COD, amonium, nitrat, TKN, DO, BOD, MLSS, MLVSS, pH, dan salinitas. Analisis COD, amonium, nitrat, DO, dan ph dilakukan setiap sebelum proses aerobik, setelah proses aerobik, dan setelah proses anoksik. Sedangkan untuk konsentrasi MLSS, MLVSS, BOD, TKN, dan salinitas dianalisis saat awal siklus (hari ke-0) dan akhir siklus ke-6 (hari ke-12).
Hasil penelitian menunjukkan bahwa MBBR optimum dalam mengoksidasi zat organik dan nitrogen pada konsentrasi COD lindi 2000 mg/L dengan efisiensi removal COD mencapai 78,78% pada durasi proses aerobik-anosik 36-9 jam dan removal total nitrogen, amonium, dan nitrat sebesar 35,24%, 61,04%, dan 28,79% pada durasi proses aerobik-anoksik 22,5-22,5 jam. ============================================================================================ Leachate contains high concentrations of organic matter and nitrogen. One of treatment that considers effective for leachate treatment is Moving Bed Biofilm Reactor (MBBR). MBBR was developed on the basis of conventional activated sludge process and fluidized bed reactor. MBBR used specific media for microorganism attached. The aim of this research is to determine the ability of MBBR to decrease organic matter and nitrogen concentration in leachate using variation of organic concentration, and aerobic-anoxic duration process.
This lab-scale research used leachate sample from landfill Ngipik, Gresik and return activated sludge from clarifier unit in Instalasi Pengolahan Lumpur Tinja Keputih as the biomass. The research consists of three reactors that was operated in batch system and different COD concentration of leachate. Aerobic condition derived from aerator and submersible pump whereas anoxic condition derived from only submersible pump. Treatment capacity of MBBR was 5 L and media Kaldness type 1 (K1) 1 L. The research steps consist of leachate and sludge characterization, seeding and acclimatization, and main research. This research used the COD concentration of leachate and the duration of aerobic-anoxic process as variables. Variation of leachate COD concentration was 2000 mg/L, 3500 mg/L and 5000 mg/L, and variation of duration aerobic-anoxic process for one cycle (in hours) was 9-36, 22,5-22,5, and 36-9. The time needed in this research for each aerobic-anoxic duration was 12 days which consist of 6 cycle. The parameters are COD, ammonium, nitrate, TKN, DO, BOD, MLSS, MLVSS, pH, and salinity. COD, ammonium, nitrate, DO, pH analysis conduct in every single cycle, before the aerobic process, after aerobic process, and after anoxic process. Meanwhile, the concentration of MLSS, MLVSS, BOD, TKN and salinity were analyzed at the beginning of cycle (day 0) and end of cycle 6 (day 12).
Result of this research show that MBBR can be used optimally for leachate treatment in 2000 mg/L COD concentration with removal efficiency of organic compound reached 78,78% (duration aerobic-anoxic 36-9 jam), and removal efficiency of total nitrogen, ammonium, and nitrate reached 35,24%, 61,04%, dan 28,79% (duration aerobic-anoxic 22,5-22,5 jam).
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Lindi, Moving Bed Biofilm Reactor, Nitrogen, Organik (COD), Aerobik-anoskik |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Ravika Huda . |
| Date Deposited: | 12 Oct 2017 04:33 |
| Last Modified: | 08 Mar 2019 03:07 |
| URI: | http://repository.its.ac.id/id/eprint/44387 |
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