ANALISIS KANDUNGAN MANGAN PADA AIR SUNGAI TPA BAKUNG DENGAN PENAMBAHAN EKOENZIM NANAS (Ananas comosus)

ALWIS, YUDA PRATAMA (2024) ANALISIS KANDUNGAN MANGAN PADA AIR SUNGAI TPA BAKUNG DENGAN PENAMBAHAN EKOENZIM NANAS (Ananas comosus). Diploma thesis, UIN RADEN INTAN LAMPUNG.

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Abstract

ABSTRAK Air lindi yang keluar dari TPA Bakung langsung mengalir ke sungai sehingga dapat membahayakan warga setempat. Air lindi mengandung senyawa logam berat Mangan (Mn), BOD, dan COD. Salah satu cara menanggulangi pencemaran tersebut adalah dengan penambahan ekoenzim. Pada penelitian ini, jenis ekoenzim yang digunakan berasal dari kulit nanas. Kulit nanas mengandung senyawa flavonoid, tannin dan saponin yang dapat berpengaruh pada penurunan Mangan (Mn), BOD dan COD. Penelitian ini merupakan penelitian pendekatan kuantitatif deskriptif. Teknik pengambilan sampel sesuai standar SNI 8995-2021 yaitu teknik pengambilan grab sampling (uji sampel sesaat) dengan mengambil 3 titik lokasi berbeda dengan waktu yang sama, kemudian dihomogenkan bersama ekoenzim. Pada stasiun 1 sebanyak 10% ekoenzim, stasiun 2 sebanyak 20%, stasiun 3 sebanyak 30% ekoenzim. Sebelum dilakukan treatment, pada stasiun 1 kadar Mangan (Mn) sebesar 2,52 mg/L, kadar BOD yaitu 794 mg/L dan kadar COD yaitu 1770 mg/L. Pada stasiun 2 kadar Mangan (Mn) sebesar 2,47 mg/L, kadar BOD sebesar 730 mg/L dan kadar COD sebesar 1580 mg/L. Pada stasiun 3 kadar Mangan (Mn) sebesar 2,62 mg/L, kadar BOD sebesar 618 mg/L dan kadar COD sebesar 1380 mg/L. Hasil setelah treatment berdasarkan parameter kimia yaitu, pada stasiun 1 yaitu kadar Mangan yaitu 2,42 mg/L, kadar BOD yaitu 2728 mg/L, kadar COD yaitu 2728 mg/L. Sedangkan pada stasiun 2 kadar mangan yaitu 2,22 mg/L, kadar BOD air yaitu 6568 mg/L, kadar COD yaitu 13550 mg/L. Dan pada stasiun 3 memperoleh kadar Mangan yaitu 2,42 mg/L, kadar BOD yaitu 8433 mg/L, kadar COD yaitu 16050 mg/L. Maka dapat dikatakan bahwa terdapat kenaikan pada kadar BOD dan COD setelah dilakukan treatment dibanding sebelum dilakukan treatment dan melampaui batas ketetapan baku mutu air. Sedangkan pada kadar Mangan (Mn) terjadi penurunan setelah dilakukan traetment dan masih sesuai dengan ketetapan baku mutu air. Berdasarkan hasil yang diperoleh, dapat diketahui bahwa kualitas air sungai sebelum dan sesudah penambahan ekoenzim dalam skala laboratorium mempengaruhi kandungan logam berat (Mangan) pada sungai TPA Bakung di Bandar Lampung. Kata Kunci : BOD, COD, Ekoenzim, Mangan, TPA Bakung ii ABSTRACT The leachate that comes out of the Bakung landfill flows directly into the river and can endanger local residents. Leachate contains heavy metal compounds Manganese (Mn), BOD and COD. In this research, the type of ecoenzyme used came from pineapple skin. Pineapple skin contains flavonoid, tannin and saponin compounds which can have an effect on reducing Manganese (Mn), BOD and COD. This research is a descriptive quantitative approach research. The sampling technique is in accordance with SNI 8995-2021 standards, namely the grab sampling technique (momentary sample test) by taking 3 different location points at the same time, then homogenizing with ecoenzymes. At station 1 as much as 10% ecoenzymes, station 2 as much as 20%, station 3 as much as 30% ecoenzymes. Before treatment, at station 1 the Manganese (Mn) level was 2.52 mg/L, the BOD level was 794 mg/L and the COD level was 1770 mg/L. At station 2 the Manganese (Mn) level was 2.47 mg/L, the BOD level was 730 mg/L and the COD level was 1580 mg/L. At station 3 the Manganese (Mn) level was 2.62 mg/L, the BOD level was 618 mg/L and the COD level was 1380 mg/L. The results after treatment are based on chemical parameters, namely, at station 1, namely Manganese levels, namely 2.42 mg/L, BOD levels, namely 2728 mg/L, COD levels, namely 2728 mg/L. Meanwhile at station 2 the manganese level was 2.22 mg/L, the water BOD level was 6568 mg/L, the COD level was 13550 mg/L. And at station 3, the Manganese level was 2.42 mg/L, the BOD level was 8433 mg/L, the COD level was 16050 mg/L. So it can be said that there is an increase in BOD and COD levels after treatment compared to before treatment and exceeds the water quality standard limits. Meanwhile, Manganese (Mn) levels decreased after treatment and were still in accordance with water quality standards. Based on the results obtained, it can be seen that the quality of river water before and after adding ecoenzymes on a laboratory scale affects the heavy metal (manganese) content in the river at the Bakung landfill in Bandar Lampung. Keywords: BOD, COD, Ecoenzymes, Manganese, TPA Bakung

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