Khairul, Yadi (2017) Identifikasi Persebaran Air Lindi Di Tpa Ngipik Kabupaten Gresik Menggunakan Metode Very Low Frequency Electromagnetic (VLF-EM). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tempat Pembuangan Akhir (TPA) Ngipik menggunakan sistem Open Dumping, sehingga dengan sistem ini akan menyebabkan percemaran lingkungan salah satunya melalui air lindi yang dihasilkan dari sampah. Telah dilakukan penelitian untuk menentukan sebaran air lindi menggunakan metode VLF-EM yang dilakukan pada dua musim berbeda untuk mengetahui perbedaan persebarannya dan juga dilakukan uji resistivitas skala laboratorium, uji kualitas air serta pemetaan muka air tanah agar bisa menginterpretasi persebaran secara keseluruhan. Dari hasil pengolahan data VLF menggunakan inversi dan pengukuran skala laboratorium diperoleh nilai resistivitas daerah yang mengandung air lindi yaitu sekitar 0.3-2.5 Ωm. Hasil perbandingan persebaran air lindi pada musim kemarau dengan musim penghujan tidak terlalu signifikan, hanya terdapat persebaran anomali resistivitas yang rendah yang lebih banyak pada musim kemarau. Aliran lindi permukaan sudah tersebar ke segala arah mengikuti kontur TPA Ngipik, ketika air lindi sudah masuk kebawah permukaan pada kedalaman 2-3 meter, arah aliran lindi berubah menjadi Selatan ke Utara searah dengan aliran bawah permukaan daerah ini.
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Ngipik landfill uses an Open Dumping system where the system will cause environmental pollution, one of them is through toxic leachate generated from waste. Research has been conducted to determine the toxic leachate distribution pattern using VLF-EM method which measured at two different seasons to know the differentiation of the distribution pattern and also a laboratory based resistivity test, quality of water, mapping ground water has been conducted after that, to interprete the overall distribution. From the results of the field research and laboratory based resistivity test, it is obtained that resistivity of the area that contains toxic leachate in landfill is about 0.3-2.5 Ωm. Results the difference of toxic leachate distribution pattern in the dry season is not too significant compared to the rainy season, there is only a low resistivity anomaly that spread out more in the dry season. Toxic leachate has spread out in the landfill area, however when the fluid flows deeper to the subsurface area in Ngipik landfill for about 2-3 m deep, fluid flow changes from south to north in the subsurface area.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Leachate, VLF-EM, Resistivity, Ngipik Landfill |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | Faculty of Civil Engineering and Planning > Geophysics Engineering |
| Depositing User: | Yadi Khairul |
| Date Deposited: | 12 Sep 2017 03:34 |
| Last Modified: | 06 Mar 2019 01:53 |
| URI: | http://repository.its.ac.id/id/eprint/43586 |
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