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Analisis Konduktivitas Listrik Lindi Tempat Pembuangan Akhir (TPA) Batu Layang Terhadap Jarak Pemukiman Masyarakat Irda Dwi Utari; Fitriana Meilasari; Arifin
G-Tech: Jurnal Teknologi Terapan Vol 7 No 2 (2023): G-Tech, Vol. 7 No. 2 April 2023
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (661.242 KB) | DOI: 10.33379/gtech.v7i2.2392

Abstract

Timbulan sampah meningkat setiap tahunnya sebesar 2,64%, TPA Batu Layang menerapkan sistem open dumping sehingga menghasilkan lindi dapat mencemari tanah dan air tanah sekitar pemukiman masyarakat.  Lindi ini bersifat toksik dan mengandung logam berat sehingga perlu dilakukan pengukuran konduktivitas lindi untuk mengetahui nilai konduktivitas sebaran lindi terhadap jarak pemukiman masyarakat sehingga mengurangi pencemaran lindi di bawah permukaan tanah.  Pengukuran konduktivitas dilakukan secara in-situ dan terdapat 16 titik pengukuran terdapat pada Titik pengambilan sampel dilakukan di parit sekitar zona E, parit sebelum tanggul, dan parit sesudah tanggul.  Hasil penelitian menyimpulkan bahwa nilai korelasi pengaruh konduktivitas terhadap jarak sebesar 0,585 yang menunjukkan hubungan cukup kuat sehingga semakin dekat pengambilan sampel TPA maka nilai konduktivitas semakin besar dan semakin jauh pengambilan sampel TPA maka nilai konduktivitas semakin kecil.
Two-Dimensional Modeling of Leachate Distribution in Batu Layang Landfill on Peat Soil using Geoelectric Method Fitriana Meilasari; Hendri Sutrisno; Arifin Arifin; Rizki Purnaini; Irda Dwi Utari
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 3 (2023): November 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i3.633-643

Abstract

The open dumping system implemented by the Batu Layang landfill can produce leachate, contaminating groundwater around the landfill. Groundwater contaminated with leachate, if used by the community, can cause health problems. Therefore, management efforts were needed, such as subsurface leachate modeling. This study aims to model the distribution of subsurface leachate in 2 dimensions. The modeling of leachate distribution below the soil surface used the Wenner configuration geoelectric method. The number of geoelectric measurement paths was two paths. The length of each track was 195 m, with a distance of 5 m between the electrodes. Data obtained from resistivity values were analyzed using the Res2Dinv application. The calculation of leachate discharge used the water balance method. Based on the inversion results using the Res2Dinv software, the resistivity value of leachate-contaminated soil in line 1 was 1.19-9.43 Ωm, and track 2 was 0.5-10.2 Ωm. The leachate resistivity value was <10 Ωm because the leachate contains inorganic minerals (metals), so the resistivity value was low. Land contaminated with leachate was estimated to be spread as far as 195 m. The most profound leachate depth was estimated at 39.4 m. Batu Layang Landfill leachate discharge in Zone E averages 4 m3/day.