SASEA, FRANSISCHUS RODRIGO TUMUATJA (2025) ANALISIS DAN PENGELOLAAN KUALITAS AIR PADA KOLAM PENGENDAPAN TAMBANG BATUBARA DI PT LAMINDO INTER MULTIKON SITE PULAU BUNYU, KABUPATEN BULUNGAN, KALIMANTAN UTARA. Tesis thesis, UPN Veteran Yogyakarta.
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Abstract
RINGKASAN
Kolam pengendapan berfungsi sebagai tempat penampungan air yang bertujuan
untuk mengendapkan partikel padat dari area penambangan. Salah satu
permasalahan lingkungan di tambang batubara PT Lamindo Inter Multikon ialah
kualitas air di kolam pengendapan (settling pond) yang tercemar partikel
tersuspensi dan logam berat, sehingga memerlukan pengelolaan kualitas air agar
memenuhi baku mutu berdasarkan PERMEN LHK No. 5 Tahun 2022.
Penelitian ini bertujuan untuk menganalisis kualitas air berdasarkan parameter pH,
Fe, Mn, dan TSS, menganalisis metode Indeks Pencemaran (Pollution Index) pada
settling pond, serta mengevaluasi efektivitas metode pengendalian aktif
menggunakan kapur tohor (CaO) dan tawas aluminium sulfat (Al₂(SO₄)₃).
Metode penelitian meliputi studi literatur, observasi lapangan, pengambilan sampel
air dari lima titik di kolam pengendapan, dan pengujian laboratorium berdasarkan
standar SNI 6989.59-2008. Perlakuan dilakukan dengan penaburan kapur tohor dan
tawas selama 15 hari.
Hasil penelitian menunjukkan bahwa setelah 15 hari perlakuan, pH air meningkat
dari 5,0 menjadi 6,9, kadar TSS menurun dari 166,2 mg/L menjadi 36,6 mg/L,
kandungan Fe menurun dari 1,89 mg/L menjadi 0,6 mg/L, dan kadar Mn menurun
dari 0,00012775 mg/L menjadi 0,00000295 mg/L.
Kesimpulan dari penelitian ini ialah bahwa metode pengendalian aktif dengan
menggunakan kapur tohor dan tawas efektif dalam mengelola kualitas air kolam
pengendapan di PT Lamindo Inter Multikon. Namun, pemantauan rutin dan
optimalisasi dosis bahan kimia tetap diperlukan untuk menjaga kualitas air sesuai
standar lingkungan.
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SUMMARY
The settling pond functions as a water storage facility designed to settle solid
particles originating from mining activities. One of the environmental issues at PT
Lamindo Inter Multikon's coal mining site is the water quality in the settling pond,
which is contaminated with suspended solids and heavy metals. Therefore, water
quality management is required to meet the quality standards based on the Ministry
of Environment and Forestry Regulation (PERMEN LHK) No. 5 of 2022.
This study aims to analyze water quality based on parameters such as pH, Fe, Mn,
and TSS; to assess the Pollution Index method in the settling pond; and to evaluate
the effectiveness of active control methods using quicklime (CaO) and aluminum
sulfate (Al₂(SO₄)₃).
The research methods include literature review, field observation, water sampling
from five points within the settling pond, and laboratory testing based on the
Indonesian National Standard (SNI) 6989.59-2008. Treatment was conducted by
applying quicklime and aluminum sulfate for 15 days.
The research results showed that after 15 days of treatment, the water pH increased
from 5.0 to 6.9, TSS levels decreased from 166.2 mg/L to 36.6 mg/L, Fe content
decreased from 1.89 mg/L to 0.6 mg/L, and Mn levels decreased from 0.00012775
mg/L to 0.00000295 mg/L.
The conclusion of this study is that the active control method using quicklime and
alum is effective in managing the water quality of the settling pond at PT Lamindo
Inter Multikon. However, regular monitoring and optimization of chemical dosages
are still necessary to maintain water quality in accordance with environmental
standards.
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| Item Type: | Tugas Akhir (Tesis) |
|---|---|
| Subjek: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknologi Mineral dan Energi > (S2) Magister Teknik Pertambangan |
| Depositing User: | Eko Yuli |
| Date Deposited: | 15 Sep 2025 07:32 |
| Last Modified: | 15 Sep 2025 07:32 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/43689 |
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