Winardi, A. (2022) Perencanaan Sanitary Landfill dan Lapisan Dasar Landfill pada Tempat Pembuangan Akhir (TPA) Sekoto - Kabupaten Kediri. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
TPA Sekoto berada di Kecamatan Badas, Kabupaten Kediri, Provinsi Jawa Timur, melayani pengangkutan sampah dari 13 kecamatan yang berada di Kabupaten Kediri. TPA Sekoto yang telah menerapkan sistem controlled landfill, pada kenyataannya masih memberikan dampak negatif pada lingkungan. Hal ini disebabkan oleh rusaknya saluran pembuangan air lindi dan kolam instalasi pengolahan air lindi (IPAL). Kondisi ini juga diperparah dengan landfill yang mengalami overload pada tahun 2020. Oleh karena itu, TPA baru dibangun disamping lokasi TPA lama. Selain itu, berdasarkan hasil penyelidikan tanah dilokasi pembangunan, ditemukan air yang berupa air rembesan lindi pada kedalaman bervariasi antara satu sampai empat meter. Oleh sebab itu, perencanaan TPA baru harus mempertimbangkan dampak lingkungan yang ditimbulkannya.
Dalam Tugas Akhir ini, direncanakan TPA Sekoto Baru dengan sistem sanitary landfill. Perencanaan meliputi perencanaan tanggul, pekuatan tanggul dengan geotekstile, dan perkuatan tanah dasar landfill dengan cerucuk, lapisan liner di bawah landfill, tinggi dan kapasitas landfill, struktur kolam IPAL, dan jaringan perpipaan air lindi.
Dari hasil perhitungan perencanaan tersebut didapatkan, 1) Tinggi tanggul 5 meter yang mengelilingi landfill dan diperlukan perkuatan geotekstile sebanyak 6 lapis; 2) 9 buah cerucuk untuk perkuatan timbunan sampah yang menghadap ke sawah dan 10 cerucuk untuk timbunan sampah yang menghadap ke kolam IPAL; 3) Kombinasi lapisan liner terdiri atas geotekstile non-woven, lapisan kerikil, geomembran HDPE 2 mm dan geogrid; 4) Tinggi timbunan sampah dalam periode layan rencana 10 tahun yaitu 20,4 meter dengan kapasitas landfill sebesar 358554,17 m3; 5) Struktur kolam IPAL bervariasi sesuai jenis dan dimensi kolam IPAL; kolam yang memiliki ukuran struktur dan kombinasi tulangan terbesar adalah kolam unit fakultatif; 6) Diameter pipa pengalir air lindi bervariasi sesuai dengan luasan daerah aliran dimana ukuran pipa terbesar berdiameter 114 mm.
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TPA Sekoto located in Badas District, Kediri Regency, East Java Province, serves the transportation of waste from 13 sub-districts in Kediri Regency. TPA Sekoto which has implemented a controlled landfill system, in fact still has a negative impact on the environment. This was caused by the damage to the leachate drainage channel and the leachate treatment pond. This condition is also exacerbated by landfills that are overloaded in 2020. Therefore, a new TPA was built next to the old TPA location. In addition, based on the results of the soil investigation at the construction site, it was found that water in the form of leachate seepage at a depth varying from one to four meters. Therefore, the planning of a new landfill must consider the environmental impact.
In this final project, it is planned that the TPA Sekoto Baru will use a sanitary landfill system. Planning includes planning the embankments, strengthening embankments with geotextiles, and strengthening landfill subgrades with micropile, liner layers under the landfill, landfill height and capacity, the structure of the leachate treatment pond and leachate channel.
From the results of the calculations, it is found that 1) The embankments is 5 meters high surrounding the landfill requires 6 layers of geotextile reinforcement; 2) 9 micropiles for strengthening the waste heap facing the rice fields and 10 micropiles for strengthening the waste heap facing the leachate treatment pond; 3) Combination of liner layers consisting of non-woven geotextile, gravel layer, geomembrane HDPE 2 mm and geogrid; 4) The height of the waste in the planned service period of 10 years is 20.4 meters with a landfill capacity of 358554.17 m3; 5) The structure of leachate treatment pond varies according to the type and dimensions of the pond; pond that has the largest structural size and combination of reinforcement are the facultative unit pond; 6) The diameter of the leachate drainage channel varies according to the surface run-off area; with the largest pipe diameter is 114 mm.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | geotextile, kolam IPAL, micropile, pipa air lindi, sanitary landfill, leachate drainage channel, leachate treatment pond |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA658 Structural design T Technology > TA Engineering (General). Civil engineering (General) > TA660.P55 Underground pipeline design, construction and management T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization T Technology > TA Engineering (General). Civil engineering (General) > TA780.C29 Piling (Civil engineering) T Technology > TD Environmental technology. Sanitary engineering > TD898.8.C67 Waste disposal |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | ACHMAD WINARDI |
| Date Deposited: | 04 Feb 2022 07:17 |
| Last Modified: | 21 Jun 2024 08:23 |
| URI: | http://repository.its.ac.id/id/eprint/92802 |
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